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Ultra Heat GMV Multi VRF for North America R410A(GC201603-1 )
PRODUCT .....................................................................................................2 1 PRODUCT LIST ..............................................................................................................................2 2 NOMENCLATURE ............................................................................................................................3 3 PRODUCT FEATURES.....................................................................................................................4 4 SPECIFICATIONS.............................................................................................................................5 5 CAPACITY CODE ...........................................................................................................................10 6 PRINCIPAL OF OPERATION.......................................................................................................... 11 CONTROL....................................................................................................13 1 Units’ Control...................................................................................................................................14 2 Wired Controller .............................................................................................................................15 3 Remote Controller ...........................................................................................................................34 INSTALLATION............................................................................................36 1 Engineering Installation Preparation and Notice.............................................................................37 2 Installation Materials Selection........................................................................................................37 3 Installation of outdoor unit ...............................................................................................................39 4 Installation of indoor Unit ..............................................................................................................40 5 Installation of Electronic Expansion Valve Assy (unit with external EXV)........................................43 6 Installation of Refrigerant Pipeline ..................................................................................................44 7 Installation of the Connection Pipe.................................................................................................47 8 Installation of Condensate Pipes.....................................................................................................52 9 Electric Wiring .................................................................................................................................54 10 Debugging of Unit .........................................................................................................................58 MAINTENANCE .............................................................................................66 1 Malfunction List ..............................................................................................................................67 2 Troubleshooting ..............................................................................................................................69 3 Power Distribution of Unit................................................................................................................73 4 Removal of Parts.............................................................................................................................76 5 Vacuum drying for the system. ........................... .............. .............................................................89 6 Exploded View of Unit and Parts’ List .......... ................................................................................. 92 CONTENTS
PRODUCT
Ultra Heat GMV Multi VRF
for North America
1
PRODUCTUltra Heat GMV Multi VRF for North America PRODUCT 1 PRODUCT LIST 1.1 Outdoor Unit Cooling Capacity Heating Capacity Power Supply Refrigerant Appearance Model Product Code Kw(Btu/h) Kw(Btu/h) GMV-36WL/B-T(U) CN850W0380 10.5 (36000) 13.2 (45000) 208/230V ~ 60Hz R410A GMV-48WL/B-T(U) CN850W0360 14.1 (48000) 15.8 (54000) 1.2 Indoor Unit 1.2.1 Low static pressure duct Cooling Capacity Heating Capacity Power Supply Refrigerant Appearance kW(Btu/h) kW(Btu/h) Model Product Code GMV-ND07PLS/ A-T(U) CM810N0080 2.2 (7500) 2.5 (8500) GMV-ND09PLS/ 3.1 (10500) GMV-ND12PLS/ A-T(U) CM810N0090 2.8 (9500) 4.0 (13500) GMV-ND14PLS/ A-T(U) CM810N0100 3.5 (12000) 208/230V ~ 60Hz R410a 4.5 (15500) GMV-ND18PLS/ A-T(U) CM810N0120 4.0 (13800) 5.2 (20000) GMV-ND22PLS/ A-T(U) CM810N0070 5.2 (18000) 7.1 (24000) 1.2.2 Four-way Cassette A-T(U) CM810N0110 6.3 (22000) Cooling Capacity Heating Capacity Power Supply Refrigerant Appearance kW (Btu/h) Model Product kW (Btu/h) GMV-ND07T/ Code A-T(U) CM500N0520 2.2 (7500) 2.5 (8500) GMV-ND09T/ 3.1 (10500) GMV-ND12T/ A-T(U) CM500N0530 2.8 (9500) 4.0 (13500) GMV-ND15T/ A-T(U) CM500N0540 3.5 (12000) 5 (17000) GMV-ND18T/ A-T(U) CM810N0130 4.4 (15000) 5.9 (20000) GMV-ND24T/ A-T(U) CM500N0510 5.3 (18000) 208/230V ~ 60Hz R410a 7.9 (27000) GMV-ND30T/ A-T(U) CM500N0550 7.0 (24000) 10 (34000) GMV-ND36T/ A-T(U) CM500N0560 8.8 (30000) 11.7 (40000) GMV-ND42T/ A-T(U) CM500N0570 10.6 (36000) 13.8 (47000) GMV-ND48T/ A-T(U) CM500N0580 12.3 (42000) A-T(U) CM500N0590 14.1 (48000) 15.8 (54000) 2 PRODUCT
Ultra Heat GMV Multi VRF for North America 1.2.3 Wall Mounted Type IDU Cooling Capacity Heating Capacity Power Supply Model Product Power Supply Appearance kW (Btu/h) kW (Btu/h) GMV-N07G/A3A- Code D(U) CM100N1480 2.2 (7500) 2.5 (8500) GMV-N09G/A3A- D(U) CM100N1490 2.8 (9500) 3.2 (11000) 208/230V ~ 60Hz R410a GMV-N12G/A3A- D(U) CM100N1500 3.5 (12000) 4.0 (13500) GMV-N18G/A3A- D(U) CM100N1510 5.2 (18000) 5.8 (20000) 7.5 (25500) 2 NOMENCLATURE 2.1Nomenclature of outdoor units GMV-N24G/A3A- D(U) CM100N1520 7.0 (24000) GMV □ - □ □ □ □ W □ / □ □ □ 1 2 3 4 5 6 7 8 9 10 No. Description Options 1 Product code GMV-Gree Multi VRF Units 2 Suitable climate Blank-T1 condition; T2-low temperature climate; T3-high temperature climate 3 Unit type DC Inverter (omit) 4 Function code Q—Heat Recovery; S—Water Heater; W—Water-cooled Unit; X—Fresh Air Unit Leave blank if above functions are unavailable. 5 Code of cooling capacity Nominal capacity/100(W) 6 Unit structure M—Modular (top discharge); L—Non-modular (side discharge); blank—Non-modular (top discharge) 7 Refrigerant R410a (omit) 8 Design No. Named in order of A, B, C, or combined with 1, 2, 3… 9 Power supply 7000~18000W, 1 phase—omit; 3 phase—S 2.2Nomenclature of indoor units GMV－ —— Power supply Series number With water pump or not Units series Cooling capacity Function code Motor type Household or commercial Code for indoor unit Code for type 3 PRODUCT
Ultra Heat GMV Multi VRF
for North America
Code for
multi VRF
－
Code for
indoor unit
Motor type
Function code
Cooling capacity
GMV
－
N
PL-Low static pressure duct type indoor unit;
P-Standard static pressure duct type indoor;
PH-High static pressure duct type indoor
unit; PB-Thin duct type indoor unit; T-Four-
way cassette; TD-Single-way cassette; TS-
Two-way cassette; C-Floor mounting unit;
ZD-Floor ceiling unit; G-Wall-mounted unit
3 PRODUCT FEATURES
3.1 General introduction
Gree Multi VRF System adopts inverter compressor technology. By changing the displacement of compressor, stepless capacity
regulation within range of 15%~100% can be realized. Various product lineups are provided with capacity range from 36000Btu/h to
48000Btu/h, which can be widely used in residential, commercial and working area and especially applicable to places with big load
change. It features Superior heating performance, high capacity and energy efficiency.
3.1.1 Features
(1) Superior heating performance.
Continuous heating down to -20℃，without weakening, which is the highest level in the trade.
(2) High capacity and energy efficiency
When heating at low temperature and cooling at high temperature, its capacity has increased by 60% and COP has increased
by 20% compared to the traditional systems.
(3) No-brige PFC control technology
Compared to traditional one, no-brige PFC control technology has many advantages like less energy wasting, low electromagnetism
disturbing and so on.
(4) Intelligent temperature and humidity control energy-saving technology
Use the intelligent temperature and humidity control energy-saving technology to make sure that the room temperature and humidity
are comfortable for human beings. It save more than 30% energy and makes human beings far away from diseases.
(5) Intelligent liquid-spray protection technology
With the intelligent liquid-spray protection technology, units can calculate the current air injection dryness and control the liquid height,
to accurately control the air injection dryness.
(6) New generation CAN bus communication
Due to the latest communication method—CAN Bus Communication, system’s anti-interference capability is stronger and the control
on indoor units is more accurate, with higher reliability. Specialized shield wire is no more needed and ordinary communication wire can
be applied in the construction, which has increased the installation flexibility.
(7) Reliable low-temperature running
The controller uses the low temperature elements, which can run reliably at -35℃. The compressor can normally start up below -35℃.
(8) Small floor area and easy installation
The floor area it occupys is the smallest one in the same capacity at the market.
(9) Complete protection
Units are equipped with a series of protection to accurately identify errors and protect the units, which has ensured reliable and safe
operation.
3.1.2 Features of Duct Type Indoor Unit
◆Flexible setting and even air supply
◆Convenient installation
Can be installed in the ceiling
◆With fresh air function to improve indoor air quality
Fresh air duct can be connected
◆Wide adjusting range of static pressure and air volume
Static pressure and air volume can be set according to actual requirements
3.1.3 Features of Wall Mounted Type Indoor Unit
4
PRODUCT
R-heat pump
L-cooling only
D-DC
motor
Default-AC
X-fresh air
W-dual heat sources
Nominal cooling
capacity/100(W)
Q-heat recovery
Default-electric heating
motor
With water pump or
not
Series number
Power supply
With water pump-
S(All cassette indoor
A, B, C… or 1, 2, 3…
Select power supply code
according to power supply
units are with water
pump, S is not
presented in the
model same)గ Filter can be cleaned
గ Quiet design
గ One IDU with several wired controller and several IDUs with one wired controller
One IDU can be connected with several wired controllers in order to control one IDU from different location; meanwhile, several IDUs
can be connected with one wired controller in order to achieve centralized control of 16 IDUs in maximum.
గWide air supply range
The air supply range is wide, so that the wind can be delivered to each corner of the room naturally and evenly.
గSuper cooling and heating function
Intelligent temperature control technology is adopted with super cooling and heating function, so that the room temperature can reach
set temperature rapidly.
గ I-feel function
When I-feel function is activated, the unit can detect the temperature around the user and adjust the temperature, so that the comfort of
user is improved. (Remote controller shall be equipped)
గPanel is removable
The panel of indoor unit can be removed easily for convenient maintenance.
గCAN bus communication technology and auto addressing
The response of the system is quicker with more reliable communication; auto addressing, non-polar communication and free wiring
are available.
గ Multiple protections
Anti-freezing protection, temperature sensor malfunction protection, fan motor overload protection, auxiliary electric heating overheat
protection (This function is not included in pure heat pump unit).
4 SPECIFICATIONS
4.1 Outdoor Unit
Model
GMV-36WL/B-T(U)
GMV-48WL/B-T(U)
Product Code
CN850W0380
CN850W0360
Cooling capacity
kW(Btu/h)
10.5(36000)
14.1(48000)
Heating capacity
kW(Btu/h)
13.2(45000)
15.8(54000)
Circulating air volume
m
3/h
6000
6000
Noise
dB(A)
56
57
Refrigerant charge volume
Kg(oz)
6.5
6.5
Level
1
1
Power supply
208/230V~60Hz
208/230V~60Hz
Cooling
kW
2.6
4.2
Rated power
input
Heating
kW
3.1
4.2
Unit Dimensions (mm/inch)(WxDxH)
900×340×1345mm(35.4×13.4×53.0inch)
Package Dimensions (mm/inch)(WxDxH)
993×453×1500mm(39.3×18.0×59.6 inch)
Compressor
QXAW-F518zX440C
Water-proof level
IPX4
IPX4
Suitable climite
T1
T1
Gas
mm/inch
ij
ij
Connection
Liquid
mm/inch
ij
ij
pipe
Connection Method
Flare connection
Flare connection
Net weight
Kg
134.4
134.4
2
2
5
6
50
100
50
100
Minimum NO. of connectable indoor units
Maximum NO. of connectable indoor units
Min
Max
Total capacity index of to be
connected indoor units
Note:
ķ . The technical parameters are changed along with the products’improvement; please refer to the nameplate of the unit for actual data.
Noise is tested in the semi-anechoic room, so it should be slightly higher in the actual operation due to environmental change.
ĸ .
Ultra Heat GMV Multi VRF
for North America
5
PRODUCTUltra Heat GMV Multi VRF for North America 4.2 Indoor Unit 4.2.1 Low Static Pressure Duct Type IDU GMV- ND07PLS/ GMV- ND09PLS/ GMV- ND12PLS/ GMV- ND14PLS/ GMV- ND18PLS/ GMV- ND22PLS/ Model A-T(U) Product Code CM810N0080 CM810N0090 CM810N0100 CM810N0120 CM810N0070 CM810N0110 A-T(U) A-T(U) A-T(U) A-T(U) A-T(U) Btu/h 7500 9500 12000 14000 18000 22000 Cooling Capacity kW 2.2 2.8 3.5 4.0 5.3 6.3 Btu/h 8500 10500 13500 15000 20000 24000 Heating Capacity kW 2.5 3.1 4.0 4.5 5.9 7.1 Galvanized Steel plate mm 700×615×200 700×615×200 700×615×200 900×615×200 1100×615×200 1100×615×200 outline inch 27-1/2×24- 1/4×7-7/8 27-1/2×24- 1/4×7-7/8 27-1/2×24- 1/4×7-7/8 35-3/8×24- 1/4×7-7/8 43-1/4×24- 1/4×7-7/8 43-1/4×24- 1/4×7-7/8 Dimensions (W×D×H) mm 893×743×305 893×743×305 893×743×305 1123×743×305 1323×743×305 1323×743×305 Packaging inch 35-1/8×29- 1/4×12 35-1/8×29- 1/4×12 35-1/8×29- 1/4×12 44-1/2×29- 1/4×12 52×29-1/4×12 52×29-1/4×12 lbs. 51 51 51 60 69 69 Net Weight kg 23 23 23 27 31 31 lbs. 64 64 64 73 86 86 Gross Weight kg 29 29 29 33 39 39 mm Φ6.35 Φ6.35 Φ6.35 Φ6.35 Φ9.52 Φ9.52 Liquid Side inch Φ1/4 Φ1/4 Φ1/4 Φ1/4 Φ3/8 Φ3/8 mm Φ9.52 Φ9.52 Φ12.7 Φ12.7 Φ15.9 Φ15.9 Pipe Connection Gas Side inch Φ3/8 Φ3/8 Φ1/2 Φ1/2 Φ5/8 Φ5/8 mm Φ25 Φ25 Φ25 Φ25 Φ25 Φ25 Drain Pipe inch Φ1 Φ1 Φ1 Φ1 Φ1 Φ1 Power supply 1-phase 208-230V 60Hz Type * Quantity Centrifugal*2 Centrifugal*2 Centrifugal*2 Centrifugal*3 Centrifugal*4 Centrifugal*4 Driving Mechanism Direct-driven Motor Type BLDC Motor Power Input W 43 43 43 52 99 99 Motor Running Current A 0.3 0.3 0.3 0.5 0.7 0.7 Fan CFM 265/235/150 265/235/150 325/265/205 410/353/265 590/470/355 590/470/355 m 3/h 450/400/250 450/400/250 550/450/350 700/600/450 1000/800/600 1000/800/600 External Default in.W.G. 0.06 0.06 0.06 0.06 0.06 0.06 Pa 15 15 15 15 15 15 Range in.W.G. 0~0.12 0~0.12 0~0.12 0~0.12 0~0.12 0~0.12 Static Pressure Pa 0~30 0~30 0~30 0~30 0~30 0~30 Sound Pressure Level(H/M/L) dB(A) 31/29/25 31/29/25 32/30/27 33/31/28 35/33/30 35/33/30 Heat Exchanger Air Filter PP Refrigeration Control Device EXV Protection Device Fuse 6 PRODUCT
Ultra Heat GMV Multi VRF for North America 4.2.2 4-way Cassette Type IDU Model GMV-ND07T/ GMV-ND09T/ GMV-ND12T/ GMV-ND15T/ GMV-ND18T/ A-T(U) A-T(U) A-T(U) A-T(U) A-T(U) Product Code CM500N0520 CM500N0530 CM500N0540 CM810N0130 CM500N0510 Btu/h 7500 9500 12000 15000 18000 Cooling Capacity kW 2.2 2.8 3.5 4.4 5.3 Btu/h 8500 10500 13500 17000 20000 Heating Capacity kW 2.5 3.1 4.0 5 5.9 Galvanized Steel plate mm 840×840×190 840×840×240 840×840×240 840×840×240 840×840×240 Body outline inch 33×33×7 1/2 33×33×9-1/2 33×33×9-1/2 33×33×9-1/2 33×33×9-1/2 mm 960×960×257 960×960×310 960×960×310 960×960×310 960×960×310 Body Packaging inch 37-3/4×37-3/4×10- 1/8 37-3/4×37-3/4×12- 1/4 37-3/4×37-3/4×12- 1/4 37-3/4×37-3/4×12- 1/4 37-3/4×37-3/4×12- 1/4 Dimensions mm 950×950×65 950×950×65 950×950×65 950×950×65 950×950×65 (W×D×H) Panel outline inch 37-3/8×37-3/8×2- 1/2 37-3/8×37-3/8×2- 1/2 37-3/8×37-3/8×2- 1/2 37-3/8×37-3/8×2- 1/2 37-3/8×37-3/8×2- 1/2 mm 1030×1035×118 1030×1035×118 1030×1035×118 1030×1035×118 1030×1035×118 Panel Packaging inch 40-1/2×40-1/2×4- 5/8 40-1/2×40-1/2×4- 5/8 40-1/2×40-1/2×4- 5/8 40-1/2×40-1/2×4- 5/8 40-1/2×40-1/2×4- 5/8 lbs. 50 58 58 58 58 Main Body kg 22.5 26.5 26.5 26.5 26.5 Net Weigh lbs. 15-3/8 15-3/8 15-3/8 15-3/8 15-3/8 Panel kg 7.0 7.0 7.0 7.0 7.0 lbs. 64 75 75 75 75 Main Body kg 29 34 34 34 34 Gross Weigh lbs. 24-1/4 24-1/4 24-1/4 24-1/4 24-1/4 Panel kg 11.0 11.0 11.0 11.0 11.0 mm Φ6.35 Φ6.35 Φ6.35 Φ6.35 Φ9.52 Liquid Side inch Φ1/4 Φ1/4 Φ1/4 Φ1/4 Φ3/8 mm Φ9.52 Φ9.52 Φ12.7 Φ12.7 Φ15.9 Pipe Connections Gas Side inch Φ3/8 Φ3/8 Φ1/2 Φ1/2 Φ5/8 mm Φ25 Φ25 Φ25 Φ25 Φ25 Drain Pipe inch Φ1 Φ1 Φ1 Φ1 Φ1 Power supply 1-phase 208-230V 60Hz Type * Quantity Centrifugal*1 Centrifugal*1 Centrifugal*1 Centrifugal*1 Centrifugal*1 Driving Mechanism Direct-driven Direct-driven Direct-driven Direct-driven Direct-driven Motor Type BLDC BLDC BLDC BLDC BLDC Motor Power Input W 48 48 48 48 59 Fan Motor Running A 0.3 0.5 0.5 0.5 0.5 Current CFM 440/385/325 590/530/440 590/530/440 590/530/440 590/530/440 Rate(H/M/L) m 3/h 750/650/550 750/650/550 750/650/550 750/650/550 1000/900/750 Sound Pressure Level (H/M/L) dB(A) 36/34/31 36/34/31 36/34/31 36/34/31 37/35/32 Heat Exchanger Air Filter PP PP PP PP PP Insulation Material Foamed polystyrene Refrigeration Control Device EXV EXV EXV EXV EXV Protection Device Fuse Fuse Fuse Fuse Fuse Panel name TC01 TC01 TC01 TC01 TC01 7 PRODUCT
Ultra Heat GMV Multi VRF for North America Model GMV-ND24T/ GMV-ND30T/ GMV-ND36T/ GMV-ND42T/ GMV-ND48T/ A-T(U) A-T(U) A-T(U) A-T(U) A-T(U) Product code CM500N0550 CM500N0560 CM500N0570 CM500N0580 CM500N0590 Btu/h 24000 30000 36000 42000 48000 Cooling Capacity kW 7 8.8 10.6 12.3 14.1 Btu/h 27000 34000 40000 47000 54000 Heating Capacity kW 7.9 10 11.7 13.8 15.8 Galvanized Steel plate mm 840×840×240 840×840×320 840×840×320 840×840×320 840×840×320 Body outline inch 33×33×9-1/2 33×33×12-5/8 33×33×12-5/8 33×33×12-5/8 33×33×12-5/8 mm 960×960×310 960×960×394 960×960×394 960×960×394 960×960×394 Body Packaging inch 37-3/4×37-3/4×12- 1/4 37-3/4×37-3/4×15- 1/2 37-3/4×37-3/4×15- 1/2 37-3/4×37-3/4×15- 1/2 37-3/4×37-3/4×15- 1/2 Dimensions mm 950×950×65 950×950×65 950×950×65 950×950×65 950×950×65 (W×D×H) Panel outline inch 37-3/8×37-3/8×2- 1/2 37-3/8×37-3/8×2- 1/2 37-3/8×37-3/8×2- 1/2 37-3/8×37-3/8×2- 1/2 37-3/8×37-3/8×2- 1/2 mm 1030×1035×118 1030×1035×118 1030×1035×118 1030×1035×118 1030×1035×118 Panel Packaging inch 40-1/2×40-1/2×4- 5/8 40-1/2×40-1/2×4- 5/8 40-1/2×40-1/2×4- 5/8 40-1/2×40-1/2×4- 5/8 40-1/2×40-1/2×4- 5/8 lbs. 58 72 72 72 72 Main Body kg 26.5 32.5 32.5 32.5 32.5 Net Weight lbs. 15-3/8 15-3/8 15-3/8 15-3/8 15-3/8 Panel kg 7.0 7.0 7.0 7.0 7.0 lbs. 75 88 88 88 88 Main Body kg 34 40 40 40 40 Gross Weight lbs. 24-1/4 24-1/4 24-1/4 24-1/4 24-1/4 Panel kg 11.0 11.0 11.0 11.0 11.0 mm Φ9.52 Φ9.52 Φ9.52 Φ9.52 Φ9.52 Liquid Side inch Φ3/8 Φ3/8 Φ3/8 Φ3/8 Φ3/8 mm Φ15.9 Φ15.9 Φ15.9 Φ15.9 Φ15.9 Pipe Connections Gas Side inch Φ5/8 Φ5/8 Φ5/8 Φ5/8 Φ5/8 mm Φ25 Φ25 Φ25 Φ25 Φ25 Drain Pipe inch Φ1 Φ1 Φ1 Φ1 Φ1 Power supply 1-phase 208-230V 60Hz Type * Quantity Centrifugal*1 Centrifugal*1 Centrifugal*1 Centrifugal*1 Centrifugal*1 Driving Mechanism Direct-driven Direct-driven Direct-driven Direct-driven Direct-driven Motor Type BLDC BLDC BLDC BLDC BLDC Motor Power W 59 98 110 110 110 Fan Input Motor Running A 0.5 0.8 0.9 0.9 0.9 Current CFM 695/590/470 885/800/650 1000/825/650 1095/885/680 1095/885/680 Rate(H/M/ 3/h 1180/1000/800 1500/1350/1100 1700/1400/1100 1860/1500/1150 1860/1500/1150 m L) Sound Pressure Level(H/ M/L) dB(A) 38/36/33 40/38/35 41/38/36 43/41/38 43/41/38 Heat Exchanger Air Filter PP PP PP PP PP Insulation Material Foamed polystyrene Refrigeration Control Device EXV EXV EXV EXV EXV Protection Device Fuse Fuse Fuse Fuse Fuse Panel name TC01 TC01 TC01 TC01 TC01 8 PRODUCT
Ultra Heat GMV Multi VRF for North America 4.2.3 Features of Wall Mounted Model GMV-N07G/A3A- GMV-N09G/A3A- GMV-N12G/A3A- GMV-N18G/A3A- GMV-N24G/A3A- D(U) Product code CM100N1480 CM100N1490 CM100N1500 CM100N1510 CM100N1520 D(U) D(U) D(U) D(U) Btu/h 7500 9500 12000 18000 24000 Cooling Capacity kW 2.2 2.8 3.5 5.2 7 Btu/h 8500 11000 13500 20000 25500 Heating Capacity kW 2.5 3.2 4 5.8 7.5 Galvanized Steel plate mm 843×180×275 843×180×275 940×200×298 940×200×298 1008×221×319 outline inch 33 1/5×7×10 5/6 33 1/5×7×10 5/6 37×7 7/8×11 3/4 37×7 7/8×11 3/4 39 2/3×8 5/7×12 5/9 Dimensions (W×D×H) mm 973×258×370 973×258×370 1068×288×395 1068×288×395 1131×398×328 Packaging inch 38 1/3×10 1/6×14 4/7 38 1/3×10 1/6×14 4/7 42×11 1/3×15 5/9 42×11 1/3×15 5/9 44 1/2×15 2/3×13 lbs. 22 22 27.6 27.6 33.1 Net Weight kg 10 10 12.5 12.5 15 lbs. 27.6 27.6 33.1 33.1 40.8 Gross Weight kg 12.5 12.5 15 15 18.5 mm ĭ ĭ ĭ ĭ ĭ Liquid Side inch ĭ ĭ ĭ ĭ ĭ mm ĭ ĭ ĭ ĭ ĭ Pipe Connections Gas Side inch ĭ ĭ ĭ ĭ ĭ mm ĭ ĭ ĭ ĭ ĭ Drain Pipe inch ĭ ĭ ĭ ĭ ĭ Power supply 1-phase 208-230V 60Hz Type * Quantity Driving Mechanism Direct-driven Motor Type PG Motor Power Input W 50 50 60 60 70 Fan Motor Running Current A 0.2 0.2 0.21 0.21 0.31 CFM 295/247/206 295/247/206 370/324/283 370/324/283 440/353/294 Rate(H/M/L) m 3/h 500/420/350 500/420/350 630/550/480 630/550/480 750/600/500 Sound Pressure Level(H/M/L) dB(A) 38/34/30 38/34/30 44/41/38 44/41/38 44/41/38 Heat Exchanger Air Filter PP+10%BCM+FP03 Insulation Material Foamed polystyrene Refrigeration Control Device EXV Protection Device Fuse 4.3 Operation range Cooling Outdoor temperature: （50~129.2°F） Heating Outdoor temperature: （-31~80.6°F） 5 PRODUCT CAPACITY CORRECTION 5.1 Instruction of Product Capacity Correction Nominal cooling capacity and nominal heating capacity are tested under given conditions: (1) Rated cooling or heating condition. (2) No height difference between indoor unit and outdoor unit. (3) Short connection pipe. If the three conditions above have changed, the cooling and heating capacity will change correspondingly and correction is needed. 9 PRODUCT
Ultra Heat GMV Multi VRF for North America 5.2 Capacity Code Instruction of capacity code： GMV-36WL/B-(U) and GMV-48WL/B-(U) are identical in components, systems and structure, etc. 5.3 Capacity Correction Formula5.1 Correction factor of indoor and outdoor temperature 5.3.1 Rated capacity of outdoor unit Model GMV-36WL/B-T(U) GMV-48WL/B-T(U) Rated cooling capacity kW(Btu/h) 10.5(36000) 14.1(48000) Rated heating capacity kW(Btu/h) 13.2(45000) 15.8(54000) 5.3.2 Correction factor of indoor and outdoor temperature (1) Correction factor of cooling capacity 1.00 1.00 0.95 1.00 1.05 1.00 48 (118) 45 (113) 40 (104) 35 (95) 30 (86) 25 (77) 20 (68) 16 (61) 14 16 18 20 22 24 26 (57) (61) (64) (68) (72) (75) (79) 嘅嘅嘅嘅嘅嘅嘅嘅嘅 (2) Correction factor of heating capacity 1.0 1.0 1.00 1.0 0.95 -20 -25 (-4) (-13 5.3.3 Correction factor of pipe length and height difference (1) Symbol description: Hp: Height difference in case indoor unit is below outdoor unit(m/feet); Hm: Height difference in case indoor unit is above outdoor unit (m/feet); L: Length of one-way equivalent pipe. Below table shows the capacity variance ratio for 100% full load in standard working condition (thermostat setting is 16 10 PRODUCT oC(61 oF) for
Ultra Heat GMV Multi VRF for North America oC(86 oF) for heating). cooling and 30 0. 9 9 . 0 7 9 0. 5 9 50 50 40 40 30 30 20 . 1 0 20 Hp(m) Hp(m) 10 10 20 30 10 10 20 30 60 40 50 70 80 110 90 1001 20 150 L(m) 1301 40 60 40 50 70 80 110 90 1001 20 150 L(m) 1301 40 10 Hm(m) 10 Hm(m) 20 20 30 30 40 40 Variance ratio of heating capacity Variance ratio of heating capacity NOTE： m 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 ft 0 33 66 98 131 164 197 230 262 295 328 361 394 427 459 492 6 PRINCIPAL OF OPERATION Name Compressor 4-way valve Cut-off valve One-way valve Capillary tube Symbol Name Gas-liquid Pressure Pressure sensor exchanger Electronic expansion valve separator switch Symbol 11 PRODUCT
Ultra Heat GMV Multi VRF for North America In cooling, the low-temperature and low-pressure refrigerant gas from each indoor heat exchanger will be merged and inhaled by the compressor and then become high-temperature and high-pressure gas, which will later be discharged into outdoor heat exchangers. By with indoor air, refrigerant wil become low-temperature and low-pressure gas again and repeat the circulation so as to realize the cooling effect. In heating, 4-way valve will be energized to make refrigerant circulate in a reverse direction of cooling. Refrigerant will release heat in indoor heat exchangers (electric heating elements will also work under certain circumstance and release heat) and absorb heat in outdoor heat exchangers circularly so as to realize the heating effect. 12 PRODUCT
CONTROL
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CONTROLUltra Heat GMV Multi VRF
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CONTROL
1 Units’ Control
1.1 Schematic diagram of units’ control
Air conditioning units can be divided into indoor unit and outdoor unit. A maximum of 16 sets of indoor units
can be connected to an outdoor unit. 2-core (3-core pin header) communication cable is used for the connection
between indoor unit and outdoor unit. Indoor unit is connected to display board via 4-core communication cable. In
engineering installation, address dial-up of the display board and the mainboard of indoor unit shall be dialed. The
address dial-up of the mainboard of indoor unit must be identical with that of the display board of the same indoor
unit. Address dial-up of different indoor unit must vary. Multi VRF indoor unit is applicable to all digital or inverter
outdoor units.
Controller of outdoor unit falls into two categories in terms of its function, i.e. main control system and
inverter drive control system
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CONTROL2 Wired Controller
2.1 Control panel
Fig. 1.1 Appearance of wired controller
Fig. 1.2 LCD graphics of wired controller
LCD Display Instruction
Table 1.1 LCD display instruction
No.
Symbols
Instructions
1
Up and down swing function
2
Left and right swing function
It's valid under Save mode and displays during setting process.
Temperature lower limit for Cooling: Limit the minimum temperature value under Cooling or Dry mode.
Temperature upper limit for Heating: Limit the maximum temperature value under Heating, Space Heating or 3D
Heating mode.
3
4
Auto mode (Under Auto mode, the indoor units will automatically select their operating mode as per the temperature
change so as to make the ambient comfortable.)
5
It shows the setting temperature value(In case the wired controller is controlling a Fresh Air Indoor Unit, then the
temperature zone will display FAP)
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CONTROLUltra Heat GMV Multi VRF for North America 6 Cooling mode 7 Dry mode 8 Fan mode 9 Heating mode 10 When inquiring or setting project number of indoor unit, it displays "NO." icon 11 Floor Heating mode (When Heating and Floor Heating simultaneously shows up, it indicates 3D Heating is activated.) 12 Display "SET" icon under parameter setting interface 13 Space Heating mode 14 Display "CHECK" icon under parameter view interface 15 Outdoor unit operates under Save mode/upper limit of system capacitor less 100%/remote Save status 16 Sleep status 17 Current set fan speed (including auto, low speed, medium-low speed, medium speed, medium-high speed, high speed and turbo seven status) 18 Air status 19 20 Quiet status (including Quiet and Auto Quiet two status) 21 Allow auxiliary electric heating On icon 22 Light On/Off function 23 X-fan function 24 Health function 25 Fresh air status 26 Out function 27 Outdoor unit defrosting status 28 Gate-control function 29 Shielding status 30 Child Lock status 31 One wired controller controls multiple indoor units 32 Save status of indoor unit 33 It indicates the current wired controller is the slave wired controller (address of wired controller is 02) 34 Memory status (The indoor unit resumes the original setting state after power failure and then power recovery) 35 Invalid operation 36 Current wired controller connects master indoor unit 37 Timer zone:Display system clock and timer status Note: When wired controller is connected with different indoor units, some functions will be different 16 CONTROL
Ultra Heat GMV Multi VRF for North America Button Graphics Fig. 1.3 Button graphics 2.2 Installation and removal 2.2.1 Installation dimensions Unit:mm 8 5 . 2 0 4 1 1 2 .3 R3 6 R - 2 7 . 5 3 22 Unit:mm Fig.2.1.1 Dimension of wired controller 112 22 42.5 mm 112 22 2.7 3.3 5 42.5 40 82.5 inch 4.41 0.87 0.11 0.13 0.20 1.67 1.57 3.25 2.2.2 Installation method 1 2 3 4 2 H1 H 2 H1 H 2 H1 H 6 7 5 8 9 10 Fig. 2.2.2 Installation diagram for wired controller Above is a simple installation method of wired controller. Please pay attention to the following: 1) Before installation, disconnect power of the indoor unit. Do not operate when power is connected. 2) 2-core twisted pair cable from the installation hole on the wall and lead it through the hole on the back plate of wired controller. 3) Place the wired controller on wall and secure its back plate on wall with screw M4X25. 4) Connect the 2-core twisted pair cable to terminal H1 and terminal H2. Tighten up the screws. 5) Stick the cable in the slot that is left of the terminals and buckle the wired controller’s panel with its back plate. point 5, strip some of the sheath of the communication cable to meet the installation requirement. 17 CONTROL
Ultra Heat GMV Multi VRF for North America 2.2.3 Removal method H1H2 H1H2 1 2 3 4 Fig.2.1.3 Removal of Wired Controller 2.2.4 Connection of communication cord There are 4 ways to connect wired controller with indoor units’ network: Outdoor unit Outdoor unit D1 D2 D1 D2 Indoor unit Indoor unit D1 D2 H1 H2 D1 D2 H1 H2 Fig. 2.2.4.1 One wired controller Fig. 2.2.4.2 Two wired controllers controls one indoor unit control one indoor unit Outdoor unit D1 D2 Indoor unit 1 Indoor unit 2 Indoor unit 16 D1 D2 H1 H2 D1 D2 H1 2 H D1 D2 H1 H2 Fig. 2.2.4.3 One wired controller controls multiple indoor units simultaneously 18 CONTROL
Outdoor unit
D1
D2
Indoor unit 1
Indoor unit 2
Indoor unit 16
D1 D2
H1 H2
D1 D2
H1 H2
Fig. 3.6 Two wired controllers control multiple indoor units simultaneously
2.3 Engineering Test
1˅Mater IDU Settings
In power-off status, press and hold the “MODE”button for five seconds to set the IDU connected with the
current wired controller to master IDU.If the setting is successful, MASTER icon will be on.
2˅User Parameter Query
Engineering Parameters can be queried in power-on of power-off status.
(1) Press and hold the “FUNCTION”button for five seconds to enter the user parameter query interface. The
temperature area display “C00” and “CHECK” is on.
(2) Select a parameter code by pressing“ġ”or“Ģā
(3) Press“ENTER/CANCEL”botton ro return to the upper-level menu till quitting parameter query.
The user parameter query list is as follows:
Paremeter
Code
Parameter Name
Parameter
Range
View Method
C00
Parameter setting
ingress
-
-
Operation method:
In”C01”status,press “MODE”button to enter project
number query of IDU.Press“ġ”or“Ģ”to switch the IDU
SN.
1-255˖Project
Project number query
Display mode:
Temperature area:displays the fault of current IDU
C01
of IDU and fautly
number of
IDU loaciton
online IDU
Timer area:displays project number of current IDU
Special operations:
After users press the “MODE”button to enter project
number query, the buzzer of the IDU operated by the
wired controller will ring till users quit “C01”query or
Ultra Heat GMV Multi VRF
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D1 D2
H1 H2
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CONTROLUltra Heat GMV Multi VRF for North America switch to the next IDU Indoor unit quantity query in the system network 1-80 Timer area: displays the number of IDUs in the system network. C03 Operation method: In”C06”status,press “MODE”button to enter Preferential operation query interface.Press“∧”or“∨”to switch the 00：Common C06 Preferential operation operation 01：Preferential IDU SN. Display mode: query operation Temperature area: displays project number of current IDU Timer area:displays the preferential operation setting value of the current IDU Operation method: In”C07”status,press “MODE”button to enter the indoor environment temperature query interface. Press“∧”or“∨”to switch the IDU SN. C07 Indoor environment temperature query - Display mode: Temperature area: displays project number of current IDU Timer area: displays the temperature value of the environment temperature sensor after replenishment. C08 Prompt time query for 4-416：days Timer area:displays the prompt time query for air filter air filter cleaning cleaning C09 Wired controller address query 01，02 Timer area: displays the adrsess of the current wired controller Indoor unit quantity 1-16 Timer area: displays the number of IDUs controlled by the wired controller C11 query in one-to-many mode C12 Outdoor environment temperature query - Timer area: displays the temperature value of the environment temperature sensor of the master ODU. Note: a. In parameter query status, FAN, TIMER, SLEEP, and SWING are invalid. By pressing the”ON/OFF”button, users can return to the main interface but not power on/off the unit. b. In parameter query status, signals of the remote controller are invalid. 3）User Parameter Settings Engineering Parameters can be set in power-on of power-off status. (1) Press and hold the “FUNCTION” button for five seconds to enter the user parameter query interface. The temperature area displays “C00”. Press and hold the “FUNCTION”button for another five seconds to entert the 20 CONTROL
wired controller parameter setting interface.The temperature area displays “P00”.
(2) Select a parameter code by pressing“∧”or“∨”.Press the “MODE”button to switch to parameter value
setting.The parameter value blinks.Adjust the parameter value by pressing “∧”or“∨” and the press the
“ENTER/CANCEL”to complete settings.
(3) Press”ENTER/CANCEL”botton ro return to the upper-level menu till quitting parameter settings.
The user parameter setting list is as follows:
Parameter
Code
Parameter Name
Parameter Range
Default
00：does not change the
master/slave status of the
current IDU.
01：sets the current IDU to
P10
Master IDU
settings
master IDU
Infrared
connection
settings of wired
00：disabled
01：enabled
01
P11
controller
01：Master wired controller
02：Slave wired controller
01
P13
Wired controller
address settings
Group-controlled
00：disabled
01-16：number of indoor
P14
IDU quantity
settings
units
Static pressure
Type 1: 03.04.05.06.07
P30
settings for
Type 2:
01.02.03.04.05.06.07.08.09
05
indoor fan
Ultra Heat GMV Multi VRF
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Value
Remark
After the IDU connected with the
current
wired
controller
is
successfully
set
to
master
00
IDU,
”MASTER”
on
the
wired
controller is on.
This setting can only be enabled
through
the
master
wired
controller.When the infrared remote
receiving function of wired controller
is disabled, neither the master nor
slave wired controller can receive
remote signals.The wired controller
can only be operated by pressing.
When
two
wired
controllers
simultaneously control one or more
IDUs, the two controllers should use
different addresses.The slave wired
controller (address:02) does not have
the unit parameter setting function
except its own address settings.
This value is set based on the number
of connected IDUs.If the current value
01
is inconsistent with the actual number
of grou-controlled IDUs, an”L9”fault
may occur.
After identifying the IDU type, the
wired controller only displays the
available static pressure levels.
1. The static pressure levels fall into
five levels and nile levels for VRF
IDUs.The
wired
controller
only
displays the static pressure levels
matched with the identified IDU type.
2. When the HBS network consists of
IDUs with both five and nice static
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CONTROLUltra Heat GMV Multi VRF for North America 00:standard-ceiling P31 Hign-ceiling installation height 01：high-ceiling installation installation height 00：common timing 01：time-point timing 00 P33 Timer function settings Repeating validity for 00：single timing 01：repeated everyday 00 This setting is valid only when the timer function is set to time-point P34 time-point timing Cooling setting P37 temperature in 17℃～30℃ 25℃ Cooling setting temperature – heating automatic mode Heating setting 16℃～29℃ 20℃ in remote shielding status. P38 temperature in automatic mode 00：common operation 01：preferential operation 00 P43 Preferential operation settings Accumulated 00：not cleared P46 time clearing for air filter cleaning 01：cleared 00 Note: a. In parameter query status, FAN, TIMER, SLEEP, and SWING are invalid. By pressing the”ON/OFF”button, users can return to the main interface but not power on/off the unit. b. In parameter query status, signals of the remote controller are invalid. 2.4 Operation Instructions 1) On/Off Press ON/OFF button to turn on the unit. 22 CONTROL pressure levels according to the maximum control principle.If the static pressure lelvls received by the IDU from wired controller,remote controller,or remote monitoring system exceed the setting range,the limit value prevails. 3. During power-on and synchro- nization the setting value of static pressure leverls is determined by setting of the IDU. 00 timing. setting temperature ≥1℃. Note: The two settings are still valid When power supply is insufficient, users are allowed to power on/off the IDU set with preferential operation and other IDUs are forcibly powered off.A fault code is displayed on the IDU that is forcibly powered off.
Press ON/OFF button again to turn off the unit.
The interfaces of On/Off status are shown as follow:
2）Mode Setting
Under On status, pressing MODE button can set mode circularly as:
Note：
①There will be different mode with different model of the uint.The wired controller will select the range of setting
mode according to the model of indoor unit
② Only in master indoor unit that AUTO mode can be set.
③ Under the AUTO mode，when the indoor unit is cooling,“
”and“
”will be on; when the indoor unit is
heating ,“”and“
”will be on.
3）Temprature Setting
Pressing“∧or∨”button in On status increases or decreases set temperature by 1°C; holding “∧or∨”button
increases or decreases set temperature by 1°C every 0.3s.
In Cooling, Fan, Heating, Floor Heating, 3D Heating or Space Heating mode, temperature setting range is
16°C~30°C.
In Dry mode, the temperature setting range is 12°C, 16°C~30°C. In Dry mode, when temperature is 16°C,
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CONTROLUltra Heat GMV Multi VRF
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continuously press
button twice to decrease temperature to 12°C (when Save function is activated, the
temperature in Dry mode can’t be adjusted to 12°C and the setting range is “lowest temperature in Save mode” ~
30°C).
Note:
ķ Under Auto mode or Out function is activated, the setting temperature can not be adjusted by pressing
“ġ”or “Ģ”
ĸ When the wired controller is connected with a Fresh Air Indoor Unit, setting temperature won’t be
“
displayed and can’t be adjusted via
set in the parameter setting status.
4˅Fan Speed Setting
Under On status, pressing FAN button can set fan speed circularly as:
Note: Under the DRY mode, the fan will be kept running at the low speed and the fan speed isn't adjustable
5˅Timer setting
The wired controller is equipped with two kinds of timer: general timer and clock timer. General timer is
factory defaulted setting. Please refer to parameter setting
a. General Timer
Unit On/Off after a desired hour can be set through general timer.
Set Timer: when timer is not set, press TIMER button to enter timer setting and “HOUR” icon is blinking. Press
“ġ”or“Ģ” button to adjust timer time. Press TIMER button to save the setting and then exit setting.
Cancel Timer: when timer is set, press TIMER button to cancel it.
Timer setting range: 0.5~24h. Pressing “ġ” or “Ģ” button increases or decreases timer time by 0.5h; holding
“ġ”or “Ģ” button increases or decreases timer time by 0.5h every 0.3s.
In unit On status, timer Off setting is shown as follow:
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ġ” or “Ģ” button. The air outlet temperature in cooling or heating can only be b. Clock Setting Clock display: when the timer setting way is clock timer, timer zone displays system clock in
unit On and Off status.
icon is bright and the clock can be set at this time.
Clock setting: long press TIMER button for 5s to enter clock setting and
icon is blinking. Pressing
“∧”or“∨” button increases or decreases clock time by 1min; holding “∧”or“∨” button for 5s increases or
decreases clock time by 10min; Press ENTER/CANCEL button or TIMER button to save the setting and then exit
setting.
c. Clock Timer
Unit On/Off at a certain time can be set through clock timer.
Set Timer:
(1) Press TIMER button to enter timer on setting and the “ON” icon is blinking;
(2) Press “∧”or“∨” button to adjust unit On time. Press ENTER/CANCEL button to finish setting;
(3) Before pressing ENTER/CANCEL button, pressing TIMER button can save unit On time and then switch to
unit Off time setting with “OFF” icon blinking;
(4) Press “∧”or“∨”button to adjust unit Off time. Press ENTER/CANCEL button to finish setting;
Cancel Timer:
Press TIMER button to enter timer setting; press TIMER button again to switch to the setting of unit ON time or
unit Off time; press ENTER/CANCEL button to cancel timer.
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CONTROLUltra Heat GMV Multi VRF
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Pressing “∧”or“∨” button increases or decreases timer time by 1min; holding “∧”or“∨” button for 5s
increases or decreases timer time by 10min.
Clock Timer setting is shown as follow:
6) Swing Setting In unit on status, up & down swing function and left & right swing function can be set.
(1) Up & down swing function
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CONTROLUp & down swing function has two modes: simple swing mode and fixed-angle swing mode. In unit off status,
press “SWING” button and Ÿ button together for 5 seconds to switch between simple swing mode and fixed-angle
swing mode. Up & down swing icon
will blink during switching.
a. When simple swing mode is set in unit on status, press “SWING” button to start or stop up & down swing.
b. When fixed-angle swing mode is set in unit on status, press “SWING” button to adjust swing angle circularly
as below:
(2) Left & right swing function
Start left & right swing: In unit on status, press “FUNCTION” button to switch to left & right swing function
with left & right swing icon
blinking, and then press “ENTER/CANCLE” button to start left & right swing.
When left & right swing is activated, left & right swing icon will be bright.
Cancel left & right swing: When left & right swing is activated, press “FUNCTION” button to switch to left &
right swing with left & right swing icon
blinking, and then press “ENTER/ CANCLE” button to cancel left &
right swing.
7) Quiet Setting
Quiet Function: decrease the noise of indoor unit and achieve the quiet effect. Quiet function has two modes:
Quiet mode and Auto Quiet mode. It is available only in Auto, Cooling, Dry, Fan, Heating, 3D heating, Space
heating mode.
Turn on Quiet Function: press FUNCTION button to turn to Quiet function and then Quiet icon or auto
quiet icon
is blinking. At this moment, press “ġ” or“Ģ” button to switch between quiet and auto quiet,
and then press ENTER/CANCEL button to tactivate.
Turn off Quiet Function: press FUNCTION button to turn to Quiet function and then press ENTER/CANCEL
button to cancel Quiet function.
The setting of Quiet function is shown as follow:
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CONTROLUltra Heat GMV Multi VRF
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8) Sleep Setting
Sleep Function: in this mode, the unit will operate according to the preset sleep curve to provide comfortable
sleep environment.
Turn on/off Sleep Function: in unit On status, press SLEEP button to tactivate or cancel Sleep function.
When Sleep function is activated,
icon is bright and quiet or auto quiet mode is also activated.
When Sleep function is closed, if quiet function is activated before starting Sleep function, only sleep function
28
CONTROLis closed while quiet function is still activated;
Under Auto,Fan or Floor Heating mode, this Sleep function is not available.
9) Air Setting
Air Function: Adjust the amount of indoor fresh air to improve air quality and keep indoor air fresh.
Turn on Air Function: When unit is on or off, press FUNCTION button and select Air.
icon will blink
and the unit enters into Air setting. Temperature zone shows the level of Air setting, which can be adjusted by
pressing “ġ” or “Ģ” button. The adjustment range is 1~10. Press ENTER/ CANCEL button to turn on Air function.
Turn off Air Function: When Air function is on, press FUNCTION button to select Air, then press
ENTER/CANCEL button to cancel this setting.
The setting of Air function function is shown as follow:
10) Light On/Off Setting
Light On/Off Function: Light of indoor unit can be turned on or off.
Turn on the Light: When unit is on or off, press FUNCTION button to select Light function.
icon will
blink. Press ENTER/CANCEL to turn on the light.
Turn off the Light: When light of indoor unit is on, press FUNCTION button to select Light. Then press
ENTER/CANCEL to turn off the light.
Ultra Heat GMV Multi VRF
for North America
29
CONTROLUltra Heat GMV Multi VRF
for North America
Note:
When there is no button operation on the wired controller or no remote control signal is received for 20s
continuously:
① If Light function is activated, the back light of LCD will turn to half bright.
② If Light function is off, the back light of LCD will be off.
11) Save Setting
Save Function: Air conditioner can be operated in small temperature range by setting the minimum
temperature under Cooling and Dry modes and setting maximum temperature under Heating, 3D Heating and
Space Heating modes. Thus, energy saving can be realized.
Save Setting:
Save Setting for Cooling: When unit is on and under Cooling or Dry mode, press FUNCTION button to select
Save function.
icon will blink and MIN icon lit up. Press“
∧”or“∨” button
to adjust to the minimum
temperature. Press ENTER/CANCEL button to activate this function.
The setting of Save function is shown as follow:
30
CONTROLSave Setting for Heating: When unit is on and under Heating, 3D Heating and Space Heating modes, press
FUNCTION button to select Save function.
icon will blink and MAX icon lit up. Press “
∧”or“∨” button to
adjust the MAXIMUM temperature. Press ENTER/CANCEL button to turn on this function.
Turn off Save Function: Press FUNCTION button and select Save function.
icon blinks. Then press
ENTER/CANCEL button to cancel this setting.
12) Filter Clean Reminder Setting
Filter Clean Reminder Function: Unit will remember its own operating time. When the setting time is up, this
function will remind you to clean the filer. A dirty filter will result in bad heating and cooling performance,
abnormal protection, bacteria gathering, etc.
Turn on Filter Clean Reminder Function: When unit is on, press FUNCTION button and select Filter Clean
Reminder.
icon will blink. Press“
∧”or“∨” button to adjust the cleaning level, of which the range is 00,
10-39. Press ENTER/CANCEL to turn on this function.
Turn off Filter Clean Reminder Function: When unit is on and this function has been turned on, press
FUNCTION button and select Clean. Then
icon will blink. Set the cleaning level as 00 and press
ENTER/CANCEL function to cancel this setting.
When Filter Clean Reminder time is up,
con will light up to remind you to clean the filer. Press
FUNCTION button to turn to Filter Clean Reminder Function, then press SWING/ ENTER to cancel reminding,
and it will retime according to the original cleaning level. The clean reminding can be cancel
only when you didn’t reset the cleaning level under the setting of Filter Clean Reminder Function.
Ultra Heat GMV Multi VRF
for North America
31
CONTROLUltra Heat GMV Multi VRF
for North America
The setting of Filter Clean Reminder function is shown as follow:
Note:
Description on cleaning level: When setting the Filter Clean Reminder Function, timer zone will display 2
digits, of which the former indicates the pollution degree of operating place and the latter indicates the operating
time of indoor unit. There are 4 types of situations:
Cleaning Level
Description of Levels
Turn off Clean
Reminder
Timer zone shows 00
The former digit shows 1 while the latter one shows 0, which indicates the accumulating
Slight
Pollution
operating time is 5500 hours. Each time the latter digit increases 1, the operating time increases
500 hours. When it reaches 9, it means the operating time is 10000 hours
The former digit shows 2 while the latter one shows 0, which indicates the accumulating
operating time is 1400 hours. Each time the latter digit increases 1, the operating time increases
Medium
Pollution
400 hours. When it reaches 9, it means the operating time is 5000 hours
32
CONTROLThe former digit shows 3 while the latter one shows 0, which indicates the accumulating
operating time is 100 hours. Each time the latter digit increases 1, the operating time increases
100 hours. When it reaches 9, it means the operating time is 1000 hours.
Heavy
Pollution
13) X-fan Setting
X-fan Function: If unit is turned off under Cooling or Dry mode, the evaporator of indoor unit will be dried off
automatically to prevent bacteria and mould from gathering.
Turn on X-fan: When unit is on or under Cooling or Dry mode, press FUNCTION button to select
X-fan.
icon will blink. Then press ENTER/CANCEL button to turn on this function.
Turn off X-fan: When X-fan function is on, press FUNCTION button to select X-fan.
icon will blink.
Then press ENTER/CANCEL button to turn off this function.
14) Out Setting
Out Function: This is used to maintain indoor temperature so that unit can realize fast heating after it is turned
on. This function can only be used under Heating mode.
Turn on Out Function: Under Heating mode, press FUNCTION button to select Out.
icon will blink.
Then press ENTER/CANCEL button to turn on this function.
Turn off Out Function: When this function is on, press FUNCTION button to select Out.
“ icon will
blink. Then press ENTER/CANCEL button to turn off this function
15) Remote Shield Function
Remote Shield Function: Remote monitor or central controller can disable the relevant functions of wired
controller so as to realize the function of remote control.
Remote Shield Function includes all shield and partial shield. When All Shield function is on, all controls of
the wired controller are disabled. When Partial Shield function is on, those controls that are shielded will be
disabled.
When the remote monitor or central controller activates Remote Shield on the wired controller,
icon will show. If user wants to control through the wired controller,
icon will blink to remind that
these controls are disabled.
16) Child Lock Function
When unit is turned on normally or turned off, pressing“
∧”or“∨” button together for 5 seconds will turn on
Child Lock function.
will show on the display. Pressing “
∧”or“∨” together again for 5 seconds to turn off
this function.
All the other buttons will be disabled when Child Lock function is on.
17) Gate-control Function
Ultra Heat GMV Multi VRF
for North America
33
CONTROLUltra Heat GMV Multi VRF
for North America
When there is Gate-control System, user can insert a card to turn on the unit or pull off a card to turn off the
unit. When the card is re-inserted, the unit will recover the operation as state in memory. When the card is pulled
off (or improperly inserted),
icon will show.
2.5 Error display
When there occurs any error during operation, the temperature display zone on the wired controller will show
error codes. If several errors happen at the same time, error codes will show on the display repeatedly.
Note: If error occurs, please turn off the unit and send for professionals to repair.
The display of Outdoor Unit High Pressure Protection when unit is on is shown as follow:
3 Remote Controller
(1) Remote controller YAD1F
34
CONTROL1) Button name and function introduction (outside)
No.
Button name
Function
1
ON/OFF
Turn on or turn off the unit
2
FAN
Set fan speed
3
▲/▼
Set temperature and time
4
COOL
Set cooling function
5
HEAT
Set heating function
6
SWING
Set swing status
7
TURBO
Set turbo function
2) Button name and function introduction (inside)
No.
Button name
Function
1
MODE
Set operation mode
2
TIMER ON
Set timer on function
3
TIMER OFF
Set timer off function
4
LIGHT
Set light function
5
I FEEL
Set I FEEL function
6
X-FAN
Set X-FAN function
7
TEMP
Switch temperature displaying type on the unit’s display
8
HEALTH
Set health function
9
CLOCK
Set clock of the system
10
SLEEP
Set sleep function
(2) Remote controller YV1L1
No.
Button name
Function
1
ON/OFF
Turn on or turn off the unit
2
FAN
Set fan speed
3
▲/▼
Set temperature and time
4
MODE
Set operation mode
5
Set quiet function
6
Set health function and air function
7
Set left&right swing status
8
Set up&down swing status
9
X-FAN
Set X-FAN function
10
TIMER ON
Set timer on function
11
TIMER OFF
Set timer off function
12
SAVE
Set energy-saving function
13
SLEEP
Set sleep function
14
LIGHT
Set light function
15
CLOCK
Set clock of the system
16
I FEEL
Set I FEEL function
17
TEMP
Switch temperature displaying type on the unit’s display
Ultra Heat GMV Multi VRF
for North America
35
CONTROLUltra Heat GMV Multi VRF for North America INSTALLATION 36
INSTALLATION
1 Engineering Installation Preparation and Notice
1.1 Installation notice
Personnel and property safety are highly concerned during the entire installation process. Installation implementation must abide by
relevant national safety regulations to ensure personnel and property safety.
All personnel involved in the installation must attend safety education courses and pass corresponding safety examinations before
installation. Only qualified personnel can attend the installation. Relevant personnel must be held responsible for any violation of the
regulation.
1.2 Installation key points and importance
VRF air conditioning systems use refrigerant, instead of other agent, to directly evaporate to carry out the system heat. High level
of pipe cleanness and dryness is required in the system. Since various pipes need to be prepared and laid out onsite, carelessness or
maloperation during installation may leave impurities, water, or dust inside refrigerant pipes. If the design fails to meet the requirement,
various problems may occur in the system or even lead to system breakdown.
Problems that usually occur during installation are as follows:
No.
Installation Problem
Possible Consequence
1
Dust or impurities enter into the
refrigeration system.
2
welding.
3
The vacuum degree in the refrigerant pipe The refrigeration performance is reduced. The system fails to keep normal operation
4
Water enters into the refrigeration system.
with abnormal noise generated; failures may occur in the system due to ice plug.
5
6
Refrigerant pipe is blocked.
7
Refrigerant pipe exceeds the limit.
harmful for long-term running of the system.
8
9
The refrigerant pipe leaks.
of the air conditioner. Long-term operation under such circumstance may cause an
10
Water drainage from the condensate water
pipe is not smooth.
11
The ratio of slop for condensate water pipe
is incorrectly connected.
12
The air channel will deform; vibration and noise occur during unit operating.
13
The guide vane of air channel is not
reasonably manufactured.
Ultra Heat GMV Multi VRF
for North America
Pipes are more likely to be blocked; air conditioning performance is reduced;
compressor wear is increased or even hinder the normal operation of the system and
burn the compressor.
Pipes are more likely to be blocked; air conditioning performance is reduced;
compressor wear is increased or even hinder the normal operation of the system and
burn the compressor.
due to frequent protection measures. When the problem getting serious, compressor
and other major components can be damaged.
materials and can also reduce the cooling performance.
The cooling performance is reduced; in certain cases, it may cause long-term
compressor operating under overheat conditions; the lubricating effect can be
affected and the compressor may be burnt if impurities were mixed with the
lubricating oil.
to the compressor.
overheating compressor or even damage the compressor.
Residual water in IDUs can affect the normal operation of the system. The possible
water leakage can damage the IDU's decoration.
Reverse slop or inconsistent connection of condensate water pipe can hinder the
smooth drainage and cause leakage of the IDU.
Uneven air quantity allocation reduces the overall performance of the air conditioner.
37for North America Ultra Heat GMV Multi VRF 14 The refrigerant pipe or condensate water pipe does not meet the insulation requirement. 15 The installation space for IDU is Since there is a lack of space for maintenance and checking, indoor decoration might 16 The IDU or the location of the air outlet or return air inlet is not designed reasonably. 17 The ODU is improperly installed. 18 Power cables are incorrectly provided. Unit components may be damaged and potential safety hazard may occur. 19 Control communication cables are incorrectly provided or improperly connected. 20 Control communication cables are not be started up due to communication failure. 2 Installation Materials Selection properly protected. The materials, equipment and instruments used during air conditioning engineering construction must have certifications and test compulsory standards. If environmentally-friendly materials are to be used as required by customers, all such materials must meet national 2.1 Refrigerant piping (1) Material requirement: Dephosphorization drawing copper pipe for air conditioners; (2) Appearance requirement: The inner and outer surface of pipe should be smooth without pinhole, crack, peeling, blister, inclusion, (3) (4) The tensile strength must be at least 240 kgf/mm². (5) R410A Refrigerant System OD (mm/inch) Wall Thickness (mm) Model ĭ 0 ĭ 0 ĭ 0 ĭ 0 ĭ 0 (6) After the inner part of the copper pipe is cleaned and dried, the inlet and outlet must be sealed tightly by using pipe caps, plugs or adhesive tapes. 2.2 Condensate water pipe (1) Pipes that can be used for air conditioner drainage include: water supplying UPVC pipe, PP-R pipe, PP-C pipe, and HDG steel pipe; (2) (3) WDWHUVXSSO\LQJ839&SLSH ĭPPîPP，ĭPPîPP，ĭPPîPP +'*VWHHOSLSH ĭPPîPP，ĭPPîPP，ĭPPîPP，ĭPPîPP (4) WDWHUVXSSO\LQJ839&SLSH ĭPPîPPĭPPîPPĭPPîPP +'*VWHHOSLSH ĭPPîPPĭPPîPPĭPPîPPĭPPîPP 2.3 Insulation material (1) Rubber foam insulation material; (2) Flame retardancy level: B1 or higher; (3) Refractoriness: at least 120oC; (4) The insulation thickness of condensate water pipe: at least 10 mm; (5) When the diameter of copper pipe is equal to or greater than ĭ mm, the thickness of insulation material should be at least 20 mm; when the diameter of copper pipe is less than 15.9 mm, the thickness of insulation material should be at least 15 mm. 2.4 Communication cable and control cable 38 Water can easily condensate and drip to damage the indoor decoration, or even trigger the protection mode of system due to overheating operation. need to be damaged during such operation. The air outlet or return air inlet may be short-circuited, thus affecting the air conditioning performance. heat exchanging performance or even prevent the system from normal operation; in addition, the cold and hot air for heat exchange and the noise may annoy people in surrounding areas. The normal communication in the system fails or the control over IDUs and ODUs turn in a mess. The communication cables are short-circuited or disconnected, and the unit cannot
NOTICE!: For air conditioning units installed in places with strong electromagnetic interference, shielded
wire must be used as the communication cables of the IDU and wired controller, and shielded twisted pairs must
be used as the communication cables between IDUs and between the IDU and ODU.
Communication cable selection for ODU and IDUs.
Communication Cables
Between IDU and Indoor
Number of Wire Pieces x
Wire Type
Wire Diameter (mm2)
Wire Standard
Remark
(Outdoor) Unit L(m)
Common sheath twisted
pair copper core (RVV)
/
î
GB/T
Communication cable selection for IDU and wired controller
Total Length of
Communication Cables
Number of Wire Pieces x
Wire Type
Wire Diameter (mm2)
Wire Standard
Remark
of the IDU and Wired
Controller L(m)
Common sheath twisted
pair copper core (RVV)
/
î
GB/T
communication length
FDQQRWH[FHHGP
2.5 Power cable
Only copper conductors can be used as power cables. The copper conductors must meet relevant national standard and satisfy the
carrying capacity of unit.
2.6 Hanger rod and support
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(2) 8VWHHO RUDERYH
(3) $QJOHVWHHO PPîPPîPPRUDERYH
5RXQGVWHHO ĭPPRUDERYH
3 Installation of outdoor unit
3.1 Check before installation
Before installation please check the power cord if it complies with the power supply requirement on the nameplate. Make sure the
power supply is safe.
(2) This air conditioner must be properly grounded through the receptacle to avoid electric shock. The ground wire shouldn’t be
FRQQHFWHGZLWKJDVSLSHZDWHUSLSHOLJKWQLQJDUUHVWHURUWHOHSKRQHOLQH
(3) Maintain good air circulation to avoid lacking oxygen.
Read this manual carefully before installation.
3.2 Selection of installation site
Select a location which is strong enough to hold unit’s weight so that unit can stand still and erect.
(2) Make sure the unit is not exposed to sun and rain. $QGWKHORFDWLRQFDQUHVLVWGXVWW\SKRRQDQGHDUWKTXDNH
(3)
Make sure the location has space for heat exchange and maintenance so that unit can operate reliably with good ventilation.
ODU and IDU should stay as close as possible to shorten the length of refrigerant pipe and reduce bend angles.
(6) Select a location which is out of children’s reach. Keep the unit away from children.
3.3 Carrying and installing outdoor unit
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3.4 Installation notices
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The installation site shall be able to withstand the weight of outdoor unit and capable for soundproof and vibration. The air outlet
and noise of unit will not afIHFWQHLJKERUV
The hanging of outdoor unit must use appointed hanging hole. Pay attention to protect the unit during hanging and installation.
Prohibit hitting the sheet metal to avoid rust in the future.
AYRLGGLUHFWVXQOLJKW
7KHUDLQDQGFRQGHQVDWLRQZDWHUFDQEHGUDLQHGRXWVPRRWKO\
for North America
Ultra Heat GMV Multi VRF
If the wire diameter is
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overall communication
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39Ultra Heat GMV Multi VRF for North America ◆The outdoor unit will not be embedded by the snow and not affected by garbage and oil smog; ◆The installation of outdoor unit shall adopt rubber damping pad or spring damper to reduce noise and vibration; ◆ installation site; ◆The installation shall be done by professional technicians. 3.5 Fixing and damping of unit caused. between the unit and foundation. 3.6 Outline dimension and position of installation hole angel of ropes must be smaller than 40º during hanging and moving. Model A B C D E GMV-36WL/B-T(U) GMV-48WL/B-T(U) 900(35-3/8) 340(13-3/8) 1345 (53) 572(22-1/2) 378 (15) 3.7 Installation space requirement If all sides of the ODU (including the top) are surrounded by walls, process according to the following requirements for installation space: Wall ı350mm ˄13-3/4inch˅ ı200mm ı200mm ˄8inch˅ ı350mm ˄8inch˅ ı2000mm ˄78-3/4inch˅ Wall 4 Installation of indoor Unit 4.1 Installation of quiet design duct type indoor unit 40 Unit:mm(inch) Wall ı200mm ˄8inch˅ ı2000mm ˄78-3/4inch˅ ˄13-3/4inch˅ Shockproof material Wall
for North America
Ultra Heat GMV Multi VRF
4.1.1 Low Static Pressure Duct Type Unit
The following diagram is applicable for units with the cooling capacity ranging from 7 k Btu/h to 22 k Btu/h.
Gas pipe
Liquid pipe
Electric box
Drain pipe
The following table lists the detailed dimensions.
Unit: mm(inch)
Item
Model
A
B
C
D
E
F
G
H
I
GMV-ND07PLS/A-T(U)
GMV-ND09PLS/A-T(U)
GMV-ND12PLS/A-T(U)
742
(29-1/5)
491
(19-1/3)
700
(27-5/9)
615
(24-1/5)
200
(7-7/8)
121
(4-3/4)
528
(20-4/5)
161
(6-1/3)
580
(22-5/6)
GMV-ND14PLS/A-T(U)
942121
(37)
491
(19-1/3)
900
(35-3/7)
615
(24-1/5)
200
(7-7/8)
121
(4-3/4)
728
(28-2/3)
161
(6-1/3)
780
(30-5/7)
GMV-ND18PLS/A-T(U)
GMV-ND22PLS/A-T(U)
1142
(45)
491
(19-1/3)
1100
(43-1/3)
615
(24-1/5)
200
(7-7/8)
121
(4-3/4)
928
(36-1/2)
161
(6-1/3)
980
(38-4/7)
4.1.2 Installation space
150（6）
4.1.3 Installation notice
(1)
(2) Installation foundation
(3) Installation site and environment
Keep the unit from insolation and rain;
Please reserve ventilation space;
Please take proper measures to reduce noise and vibration.
(4) Electrical installation of unit
41Ultra Heat GMV Multi VRF for North America All electrical installation must be done by professionals according to national and local laws and regulations. The unit must be grounded reliably. Please connect wire according to the wiring diagram on the unit. 4.2 Four-way Cassette Indoor Unit 4.2.1Requirements for external dimensions and installation and maintenance spaces D (Distance between lifting screws) Refrigerant pipe A (Decoration panel) B (Ceiling aperture) C (Indoor units) Lifting screw D (Distance between lifting screws) C (Indoor units) B (Ceiling aperture) A (Decoration panel) D (Distance between lifting screws) Refrigerant pipe A (Decoration panel) B (Ceiling aperture) C (Indoor units) Lifting screw D (Distance between lifting screws) C (Indoor units) B (Ceiling aperture) A (Decoration panel) Unit: mm(inch) Model A B C D E G H 950 (37-2/5) 890 (35) 840 (33) 680 (26-7/9) 780 (30-5/7) 65 (2-5/9) 210 (8-1/4) GMV-ND07T/A-T(U) GMV-ND09T/A-T(U) GMV-ND12T/A-T(U) 950 (37-2/5) 890 (35) 840 (33) 680 (26-7/9) 780 (30-5/7) 65 (2-5/9) 260 (10-1/4) GMV-ND15T/A-T(U) GMV-ND18T/A-T(U) GMV-ND24T/A-T(U) GMV-ND30T/A-T(U) GMV-ND36T/A-T(U) GMV-ND42T/A-T(U) GMV-ND48T/A-T(U) 840 (33) 680 (26-7/9) 780 (30-5/7) 65 (2-5/9) 340 (13-2/5) 950 (37-2/5) 890 (35) 42
4.3 Installation of wall-mounted indoor unit 4.3.1 Outline and installation dimension Model W H D GMV-N07G/A3A-D(U) GMV-N09G/A3A-D(U) 843(33-1/5) 275(10-5/6) 180(7) GMV-N12G/A3A-D(U) GMV-N18G/A3A-D(U) 940(37) 298(11-3/4) 200(7-7/8) GMV-N24G/A3A-D(U) 1008(39-2/3) 221(8-5/7) 319(12-5/9) 4.3.2 Installation space 㢅ᵓ 㢅ᵓ ഄ䴶 ഄ䴶 4.3.3 Installation notice (1) (2) Installation foundation (3) Installation site and environment Keep the unit from insolation and rain; Water can be drained from drainage pipe conveniently; There can’t be any obstacle at air inlet and air outlet to in order to keep good ventilation; Please take proper measures to reduce noise and vibration. 4.3.4 Electrical installation of unit All electrical installation must be done by professionals according to national and local laws and regulations. The unit must be grounded reliably according to related requirements in GB 50169. Please connect wire according to the wiring diagram on the unit. 5 Installation of Electronic Expansion Valve Assy (unit with external EXV) The EXV of indoor unit is built-in. for North America Ultra Heat GMV Multi VRF Unit: mm(inch) ຕ 43
for North America Ultra Heat GMV Multi VRF 6 Installation of Refrigerant Pipeline 6.1Allowable Length and Height Difference of Connection Pipe NOTICE! Equivalent length of one Y-type branch is 0.5m(1-5/8feet). ODU L1 a The 1 branch section st IDU L2 L3 Piping parameters of GMV-36WL/B-T(U) ǃGMV-48WL/B-T(U): Allowable value(m/feet) Fitting pipe 300(984) L1+L2+L3+a+b+c+d Actual length 120(394) L1+L2+L3+d Equivalent length 150(492) (m) st branch to the farthest indoor pipe 40(131) L2+L3+d From the 1 ODU at upper side 50(164) — Height difference between ODU and IDU ODU at lower side 40(131) — Height difference between IDUs 15(49) — 6.2 Dimension of Pipe (Main Pipe) from ODU to the 1st Indoor Branch Dimension of pipe from ODU to the 1st indoor branch will be determined by the dimension of outdoor connection pipe. 44
Ultra Heat GMV Multi VRF for North America ODU The 1 indoor branch st st Pipe between ODU and the 1 indoor branch Dimension of outdoor connection pipe: Pipe dimension Basic module Connection method Gas pipe (mm/inch) Liquid pipe(mm/inch) GMV-36WL/B-T(U) ĭ ĭ Flared joint GMV:/%7 8 ĭ ĭ 6.3 Selection of Indoor Branches Select indoor branches according to the total capacity of downstreDPLQGRRUXQLWV Indoor branches ODU IDU R410A Refrigerant system Total capacity of downstream indoor units C (Btu/h) Model Y type branch C FQ01A 6.4 Dimension of Pipe between Indoor Branches Select pipe between indoor branches according to the capacity of downstream indoor units; if the capacity exceeds that of the outdoor XQLWFDSDFLW\RIRXWGRRUXQLWSUHYDLOV 45
for North America Ultra Heat GMV Multi VRF Pipe between indoor branches ODU IDU Total capacity of downstream indoor units C (Btu/h) Gas pipe(mm/inch) Liquid pipe(mm/inch) C İ 19000 ĭ ĭ 19000 ˘ C İ ĭ ĭ ˘ C İ ĭ ĭ 6.5 Dimension of Pipe between Indoor Branch and IDU Dimension of pipe between indoor branch and IDU should be consLVWHQWZLWKWKHGLPHQVLRQRILQGRRUSLSH Indoor branches ODU Pipe between indoor branch and IDU IDU Rated capacity of IDU C (Btu/h) Gas pipe(mm/inch) Liquid pipe(mm/inch) C İ 9600 ĭ ĭ 9600 ˘ C İ ĭ ĭ ˘ C İ 48000 ĭ ĭ 48000 ˘ C İ ĭ ĭ ˘ C İ 96000 ĭ ĭ NOTICE! If the distance between IDU and its nearest branch is over 10m(33feet), then the OLTXLGSLSHRI,'8 UDWHGFDSDFLW\%WXK VKDOOEHHQODUJHG 46
7 Installation of the Connection Pipe
1) Conform to the following principles during pipe connection: Connection pipe should be as short as
possible, so is the height difference between indoor and outdoor units. Keep the number of bends as little
as possible. Radius of curvature should be as large as possible.
2) Weld the connection pipe between indoor and outdoor units. Please strictly follow the requirements for
welding process. Rosin joint or pin hole is not allowed.
3) When laying the pipe, be careful not to distort it. Radius of bending parts should be over 200mm(8inch).
Note that pipes cannot be repeatedly bent or stretched; otherwise the material will get harder. Do not
bend or stretch the pipe for more than 3 times at the same position.
7.1 Flaring Process
1) Use pipe cutter to cut the connection pipe in case it is unshaped.
2) Keep the pipe downward in case cutting scraps get into the pipe. Clear away the burrs after cutting.
3)
4)
7.1.1 Pipe Bending
1) Reshape the pipe by hand. Be careful not to damage the pipe.
Correct
Wrong
2) Do not bend the pipe over 90°.
3)
bend for over 3 times.
4)
bend the pipe until it is exposed. When bending is done, wrap the pipe with insulating layer and then secure it with adhesive tape.
7.1.2 Indoor Pipe Connection
1) Remove pipe cover and pipe plug.
2)
3)
at right angle to the pipe.
1) Use sponge to wrap the un-insulated connection pipe and joint. Then tie the sponge tightly with plastic
tape.
for North America
Ultra Heat GMV Multi VRF
d1
d1
d2
90°±1°
d2
47for North America Ultra Heat GMV Multi VRF 2) Connection pipe should be supported by a bearer rather than the unit. 3) The bending angle of piping should not be too small; otherwise the piping might have cracks. Please use a pipe bender to bend the pipe. 4) When connecting IDU with connection pipe, do not pull the big and small joints of IDU with force in case the capillary tube or other tubes have cracks and cause leakage. Pipe dimension Tightening torque 90 o 6mm(1/4inch) 1P 1-22ft.-1b.) 9.5mm(3/8 inch) 1P IWE) Torque wrench Common wrench 12.7mm(1/2 inch) 1P IWE) 16mm(5/8 inch) 1P IWE) 7.1.3 Outdoor Pipe Connection Below is the piping diagram of GMV-36WL/B-T(U),GMV-48WL/B-T(U). According to customer requirement or space limit, outlet pipe can be installed from the front, right or rear side. Gas pipe Liquid pipe Flared nut 7.1.4 Installation of Y-type Branch 1) Y-type Branch to other branches or IDUs type branch Outlet 1 Inlet ODU Field supplied Field supplied Outlet 2 48
for North America
Ultra Heat GMV Multi VRF
2) Y-type branch has several pipe sections with different dimension, which facilitates to match with various copper pipes. Use pipe
cutter to cut in the middle of the pipe section that is of proper dimension and remove burrs as well.
3) Y-type branch must be installed vertically or horizontally.
4) Branch shall be isolated by insulating material that can bear 120° or even higher temperature. The attached foam of branch cannot
be taken as insulating material.
Within ±30°
Within ±30°
o
Cut in the middle
NOTICE! Branch shall be isolated by insulating material that can bear 120
OF)or even
higher temperature. The attached foam of branch cannot be taken as insulating material.
7.1.5 Thermal Insulation for Pipeline
OC(248
1) For multi VRF system, every copper pipe should be labeled so as to avoid misconnection.
2) At the branch inlet, leave at least 500mm(19-3/4inch)straight pipe section.
3) Thermal insulation for pipeline.
ķ . To avoid condensate or water leakage on the connection pipe, the gas pipe and liquid pipe must be wrapped with thermal insulating
material and adhesive tape for insulation from the air.
ĸ . Thermal insulating material shall be able bear the pipe temperature. For heat pump unit, liquid pipe should bear 70
OC or above and
gas pipe should bear120
OC or above.
Example: Polyethylene foam (bear 120
OC or above. For cooling only unit, both liquid pipe and gas pipe should bear 70
OC or above); foaming polyethylene (bear 100
OC or above).
Ĺ . Joints of indoor and outdoor unit should be wrapped with insulating material and leave no gap between pipe and wall.
Thermal insulating layer is required to be wrapped at this part.
Thermal insulating pipe
No gap
ĺ . Thermal insulating material of branches should be the same as that of the pipeline. The attached foam of branches cannot be taken
as insulating material.
Ļ . When wrapping the tape, the later circle should cover half of the former one. Don’t wrap the rape too tight, otherwise the insulation
effect will be weakened.
ļ . After wrapping the pipe, apply sealing material to completely seal the hole on the wall.
49for North America Ultra Heat GMV Multi VRF 1) Thermal insulating material shall be able bear the pipe temperature. For heat pump unit, liquid pipe should bear 70 oF) or above. For cooling only unit, both liquid pipe and gas pipe should bear 70 oC(158 oF) or above and gas pipe should bear 120 oC(248 oC(158 oF) or above. 2) Thermal insulating material of branches should be the same as that of the pipeline. The attached foam of branches cannot be taken as insulating material. 7.1.6 Support and Protection of Pipeline 1) Support should be made for hanging connection pipe. Distance between each support cannot be over 1m(3-1/4feet). 2) Protection against accidental damage should be made for outdoor pipeline. When pipeline exceeds 1m(3-1/4feet), a pinch board should be added for protection. 7.2 Disassembly of Compressor Feet factory. Compressor Binding nut Metal pieces Fasten the nut after removal Metal pieces When installing the unit, metal pieces for transportation must be removed. Then fasten the binding nuts again and wrap back s operating life will be shortened. 7.3 Vacuum Pumping, Refrigerant Adding Do not purge the air with refrigerants but use a vacuum pump to vacuum the installation! There is no extra refrigerant in the outdoor unit for air purging! 7.3.1Vacuum Pumping 1) Outdoor unit has been charged with refrigerant before delivery. Field-installed connection pipe needs to be charged with additional refrigerant. 2) 3) Use vacuum pump to withdraw the air inside indoor unit and connection pipe from the outdoor valve, as shown below. 50
Ultra Heat GMV Multi VRF for North America Manometer Manometer HI knob LO knob Liquid valve Vacuum pump Connection hose Gas valve 7.3.2 Refrigerant Adding (1) Refrigerant quantity of outdoor unit before delivery: Mode GMV-36WL/B-T(U) GMV-48WL/B-T(U) Refrigerant Qty (kg/oz) 6.5(229) 6.5(229) 1) The refrigerant amount charged before delivery doesn’t include the amount that needs to be added to indoor units and the connection pipeline. 2) Length of connection pipe is decided on site. Therefore the amount of additional refrigerant shall be decided on site according to 3) Record the amount of additional refrigerant for convenience of after-sales service. (2) Calculation of the amount of additional refrigerant Calculation method of the quantity of additional refrigerant (based on liquid pipe) 4XDQWLW\RIDGGLWLRQDOUHIULJHUDQW OHQJWKRIOLTXLGSLSH;Tuantity of additional refrigerant per meterr(39-3/8inch) Diameter of liquid pipe (mm/inch) ĭ ) ĭ ) ĭ ) ĭ ) ĭ ) ĭ kg/m 11 oz/inch NOTICE! Liquid pipe that is within 20m(65-5/8feet) doesn’t need to be added with refrigerant. 3) Calculation example 51
for North America Ultra Heat GMV Multi VRF ODU IDU Indoor No. Indoorķ Indoorĸ Indoor Ĺ Indoorĺ Model Duct type Duct type Duct type Duct type GMV-ND18PLS/A-T(U) GMV-ND12PLS/A-T(U) GMV-ND09PLS/A-T(U) GMV-ND09PLS/A-T(U) Liquid pipe: No. A B C D Pipe size ĭ PP LQFK) ĭ PP LQFK) ĭ PP LQFK) ĭPP LQFK /HQJWK P IHHW P IHHW P IHHW P IHHW No. a b c d Pipe size ĭ PP LQFK) ĭPP LQFK) ĭPP LQFK) ĭPP LQFK /HQJWK P IHHW P IHHW P IHHW P IHHW TRWDOOHQJWKRIHDFKOLTXLGSLSH ĭ9.52: $%&D P IHHW ĭ 'EFG 1P IHHW NOTICE! Liquid pipe that is within 20m(65-5/8feet)doesn’t need to be added with refrigerant. 7KHUHIRUHWKHPLQLPXPTXDQWLW\RIDGGLWLRQDOUHIULJHUDQW î1î NJ R] 8 Installation of Condensate Pipes 8.1 Ensure an inclination degree of more than 1% when connecting the drain pipe to the IDU. (mm) 1000~1500 Inclination degree RIPRUHWKDQ1/100 Correct connection Incorrect connection IDFLOLWDWHIXUWKHUPDLQWHQDQFH :KHQFRQQHFWLQJWKHGUDLQSLSHEUDQFKHVWRWKHPDLQSLSHOHDGWKURXJKIURPWKHDERYHSDUWRIWKHPDLQSLSH ,IWKH air YROXPH RIWKH IDUs is KLJK and outdoor air resorption PD\ be caused by QHJDWLYH suction SUHVVXUH SURYLGH a u-type drain trap 52
Indoor unit Install a drain trap connector for each unit. The drain trap connector shall be installed in a way that facilitates trap cleaning. Indoor unit Indoor unit Connector 8.1.5 During condensate water pipe installation, ensure a distance above 500 mm between the pipe and the electric box of the unit for 8.2. Requirements on Installation of Drain Pipes for Different Types of IDUs 8.2.1 Drain Pipe Installation for Hidden Air-duct-type IDU for Air Supply a. Ensure an inclination degree of greater than 1% when connecting the drain pipe to the IDU. maintenance. c. There is a condensate water outlet on both sides of the IDU. After one condensate water outlet is determined, use the rubber stopper to block the other outlet. Tie it with threads and strap with insulation materials to prevent leakage. Bands PVC pipe for the unit Drain pipe for the unit Drain hose e. Apply insulation materials to the condensate water pipe joints to prevent dewing. d. Insulation for connection between the for North America Ultra Heat GMV Multi VRF Connector 53
for North America Ultra Heat GMV Multi VRF 8.2.2 Drain Pipe Installation for IDU a. Use pipe clips instead of applying glue to connect the hoses provided upon delivery and plastic pipes on the device. Connect the other end of the joint to the elbow. The height from the suction inlet of the discharge pump is about 200 to 500 mm. Ensure a proper inclination degree while connecting to the main drain pipe. 8.3. Requirements on Independent Drainage for Each IDU Requirements on independent drainage design for each IDU are as follows: a. There must be a proper inclination for the drain pipe. b. The drain pipe must be installed to facilitate drainage to the largest extent and be as short as possible. c. If the water is discharged to the outdoor side, it cannot drop to the outdoor ground directly. 8.4. Requirements on Centralized Drainage for IDUs a. When there are multiple IDUs in the same building, centralized drainage is adopted. b. When a header pipe is used, the drain pipe of each IDU must be higher than the header pipe. c. The diameter of the header pipe must be determined on the number and capacity of IDUs. condensate water. e. Connect branches to the main pipe from the upper part or side instead of lower part of the main pipe. f. Insulate all condensate water pipes, especially for joints at elbows. 9 Electric Wiring 1) All electrical installation must be performed by qualified technicians in accordance with local laws, regulations and this user manual. 2) Use air conditioner specialized power supply and make sure that it is consistent with system’s rated voltage. 3) Do not pull the power cord with force. 4) Caliber of the power cord must be large enough. A damaged power cord or connection wire must be replaced by specialized electrical cords. 54 Insulation layer for the condensate water pipe Pipe cover Roof Hanger bracket Within 300 mm Drain hose (accessory) Raising pipe for drainage Less than 1000 mm Ceiling Clip (accessory)
5) Connect the unit to specialized grounding device and make sure it is securely grounded. It’s a must to
install air switch and current circuit breaker that can cut off the power of the entire system. The air switch
should include magnetic trip function and thermal trip function so that system can be protected from short
circuit and overload.
6) Air conditioner belongs to class I electrical appliance, so it must be securely grounded.
7) The yellow-green wire inside the unit is a ground wire. Do not cut it off or secure it with tapping screws,
otherwise it will lead to electric shock.
8) Power supply must include secure grounding terminal. Do not connect the ground wire to the following:
Water pipe˗Gas pipe˗Drain pipe˗Other places that are deemed as not secure by professional
technicians.
9.1Wiring Diagram
1) Connection of power cord and communication wire
Separate power supply for Indoor and Outdoor
NOTICE! The remote monitor can be installed when it is necessary. The wire
(match with resistance) must be connected with ODU (see a and b) only the
remote monitor is installed.
a Connection of power cord and communication wire for IDU and one ODU
Ultra Heat GMV Multi VRF
for North America
55for North America Ultra Heat GMV Multi VRF b Connection of power cord and communication wire for IDU and multi ODUs NOTICE! : ODU n(Max)=16. The wire (match with resistance) must be connected with the last ODU. 56
2) The wiring diagram for power cord of outdoor unit and communication wire.
Wiring of the Power Cord
(1) Open the side plate.
(2) Connect the power cord to the terminals “L1”, “L2” and also the earthing screw,
and then connect the communication line “D1,D2” of the indoor unit to those of the
outdoor unit correspondingly. The communication line “G1, G2” could be used to
connect the remote monitor. Please use the bonding screw to connect the earthing
cord. The location is showing in the Fig.
(3) Fix the power cord and communication line with wire clips.
(4) Let the power cord and communication line go through the rubber ring.
Ultra Heat GMV Multi VRF
for North America
57Ultra Heat GMV Multi VRF
for North America
9.2 Power Cable Wire Gauge and Circuit Breaker Selection
9.2.1 Outdoor
Max Fuse Size/
Max Ckt, Bkr Size/
Disjoncteur Max.(A)
Min. Circuit Ampacity
Model
Power supply
Fusible Max.
(A)
GMV-36WL/B-T(U)
208/230V~ 60Hz
50
50
45
GMV-48WL/B-T(U)
208/230V~ 60Hz
50
50
45
9.2.2 Indoor
(1) Low Static Pressure Duct Type Indoor Unit
Model
GMV-ND07PLS/
GMV-ND09PLS/
GMV-ND12PLS/
GMV-ND14PLS/
GMV-ND18PLS/
GMV-ND22PLS/
A-T(U)
A-T(U)
A-T(U)
A-T(U)
A-T(U)
A-T(U)
MCA
A
0.25
0.25
0.25
0.38
0.63
0.63
MOP
A
0.45
0.45
0.45
0.68
1.13
1.13
(2) 4-way Cassette Indoor Unit
Model
GMV-ND07T/A-T(U)
GMV-ND09T/A-T(U)
GMV-ND12T/A-T(U)
GMV-ND15T/A-T(U)
GMV-ND18T/A-T(U)
MCA
0.25
0.31
0.31
0.31
0.31
MOP
0.45
0.56
0.56
0.56
0.56
Model
GMV-ND24T/A-T(U)
GMV-ND30T/A-T(U)
GMV-ND36T/A-T(U)
GMV-ND42T/A-T(U)
GMV-ND48T/A-T(U)
MCA
0.31
0.44
0.44
0.44
0.44
MOP
0.56
0.79
0.79
0.79
0.79
(3) Wall Mounted type Indoor Unit
Model
GMV-N07G/A3A-
GMV-N09G/A3A-
GMV-N12G/A3A-
GMV-N18G/A3A-
GMV-N24G/A3A-
D(U)
D(U)
D(U)
D(U)
D(U)
MCA
A
0.25
0.25
0.2625
0.2625
0.3875
MOP
A
0.45
0.45
0.4725
0.4725
0.6975
10 Debugging of Unit
Caution:
ķ .
can’t operate.
ĸ . The debugging must be performed by professional person or under the the guide of professional person.
10.1 Preparation for debugging
(4)
(5) All wires for controller and electric wires must be connected correctly and reliably.
(6)
(7) Remove all sundries from the unit, such as metal chips, joint, forceps holder, and so on.
(8) Check whether the appearance and pipeline system are damaged during carry or transportation process.
(9) Calculate the required added refrigerant-charging volume according to the length of pipe of system and pre-charge the refrigerant.
If refrigerant can’t be added any more when the required refrigerant-charging volume hasn’t been reached, record to refrigerant
volume which still needs to be added and continue to add refrigerant during run test operation process. Please refer to below run
test for the refrigerant-adding stage during run test process.
(10) After adding refrigerant, please make sure the valve for outdoor is opened completely.
(11) For the convenient of troubleshooting, the unit can’t be connected to the PC which installed with related debugging software and
make sure that the the datas in real time of this unit can be inspected by this computer. Please refer to Service Manual for the
installation and connection of the bebugging software.
(12) Before turn test, please do make sure that the preheat time for compressor is 8h above and touch the compressor to see whether
preheat is normal. You can perform run test only after normal preheat. Otherwise, it may damage the compressor.
10.2 Trial run
10.2.1 Notice
(1) Before the trial running, make sure the unit is power on and compressor has been preheated for more than six hours. Touch the unit to
check whether it’s normally prehetated. Start test operation after unit is normally preheated, otherwise compressor might be damaged.
(2) Before the test running, make sure the needed amount of refrigerant has been added to the pipe or at least 70% of the needed
refrigerant has been added.
(3) During the test running, system will operate according to the ambient temperature.
1) When outdoor temperature is above 20ćdebugging shall be in cooling mode.
2) When outdoor temperature is below 20ćdebugging shall be in heating mode.
58
(4) The test run should be carried out by the professionally skilled personnel on the premise that
all items listed above are in normal conditions.
(5) Let the unit energized and switch the wired controller or the remoter controller to “ON”.
(6)
The fan motor and compressor of the outdoor unit will run automatically in three minutes.
(7)
If there is some unusual so started, turn off the unit for an immediate check.
10.2.2 Check after Installation
Please check the following items before test operation.
Items to be checked
Possible malfunction
Has it been fixed reliable?
The unit may drop, vibrate or make noise.
Has the gas leakage been checked?
It may cause insufficient cooling(heating)
capacity.
Is the thermal insulation of the unit
sufficient?
It may cause condensation and dripping.
Is the drainage well?
It may cause condensation and dripping.
Is the voltage in accordance with the rated
voltage marked on the nameplate?
Are the lines and pipelines correctly
installed?
Has the unit been safely grounded?
It may cause electrical leakage.
Are the models of lines in conformity with
requirements?
Are there any obstacles near the air inlet
and outlet of the indoor and outdoor units?
Have the length of connection pipes and
refrigerant charge amount been recorded?
1)
Before test operation
The appearance of the unit and the refrigerant pipes cannot be damaged during the installation.
Do not switch on power before installation is finished completely.
Electrical wiring must be connected correctly and securely.
The stop valves of the outdoor unit should be opened fully.
All the impurities such as scraps and thrums must be cleared from the unit.
2)
Test operation method
ķ The test operation should be carried out by the professionally skilled personnel on the premise that all items
listed above are in normal conditions.
ĸ Set the status of the power supply switch as “ON” six hours before the start of operation
Ĺ Press mode button, to select the COOL, or HEAT. Whether the air conditioner is work normally or not.
ĺ Make sure that every combination of indoor units can work well.
Cautionʽ
If the unit cannot work nor has any abnormal noise after the compressor is started, turn off the unit for an
immediate check.
for North America
Ultra Heat GMV Multi VRF
It may cause electric malfunction or the
components may be burned out
It may cause electric malfunction or the
components may be burned out
It may cause electric malfunction or the
components may be burned out
It may cause insufficient cooling(heating)
capacity.
It is not easy to decide the charge amount of
refrigerant.
59Ultra Heat GMV Multi VRF for North America 10.3 Testing Board Introduction 10.3.1 Compose of Testing Board The testing board is in front of electrical box and can be observed well. It has several following advantages: detect indoor unit numbers and indoor unit address, displays real running function and error code automatically. It is composed of the function section, data section, button section and DIP section. 60
Running
state
The display of function section
The display of data section
ķ The section will display the
numbers of the indoor units which have
established
communication
with
the
outdoor unit. For example, if there are
twenty established indoor units, the
section will display “20”.
Stop
ĸ It will display the address of the
indoor units by turns. For example, the
“44” is represented of the indoor unit’s IP.
The code of running state:
Code
Running
state
Code
Running
UE
Pressure
equalization
UH
Heating
Normal
UP
Pump down
A4
Oil
returning
UC
Cooling
A3
Defrosting
If the malfunction occurs in the
system, the section will display the error
code. If there are several malfunctions, it
will display the error codes by turns at
intervals of 2 seconds.
Malfunction
10.3.2
Button section
Key
Fuc
＋
－
Enter
Back
SW1
Signification
Function
Increase
Decrease
Enter
Back
/
ķ
When entering the menu to set parameters, the function section will flash running codes and
the data section will flash the current parameters.
ĸ
When the menu is set, the data section will flash “=”. After the “=” stops blinking, the unit will
run the new parameters.
The flow chart of operation
10.3.3
for North America
Ultra Heat GMV Multi VRF
ķ If the function section displays the
numbers of the indoor units, the data
section
will
display
the
outside
temperature. For example, the “35” is
represented of 35ć.
ĸ If the function section displays the
address of the indoor unitˈthe data section
will display the model of the indoor unit,
for example, the “56” is represented of 56
model.
It displays the target gear of the
compressor. If the gear is zero, it will
display “0”. For example, the gear is the
fifteenth; it will display “15”. The range of
the gear is from 0 to 60.
state
ķ If the malfunction occurs in the
outdoor unit, the section displays nothing;
ĸ If the malfunction occurs in the indoor
units, the section displays the address of
the indoor unit.
61Ultra Heat GMV Multi VRF for North America Initial state Long press “Fuc” key for more than 2s Switch with “+/ -” Press “Enter” Press “Enter” Press “Enter” Ft OF/ON CU Press “Enter” Press “Enter” Setting is done Switch with AE Hi/nor/Lo “Fuc” AC Hi/nor/Lo Setting is done Press “Enter” Press “Enter” Switch with Press “Enter” Press “Enter” “Fuc” A8 OF/ON Setting is done Press “Enter” Press “Enter” H1 OF/ON Setting is done Press “Enter” Press “Enter” A2 OF/ON Setting is done Press “Enter” NH Suction temperature NP Discharge temperature d1 Switch with “Fuc” PL Low pressure PH High presuure Note: ķ Long press “Fuc” key for more than 2s to enter the first-level menu. The first-level menu includes control unit, display unit 1 and display unit 2. Press “Enter” key to enter the second-level menu. Press “Fuc” key to switch the menu. Press “Back” key to the previous menu. ĸ Control unit (CU) operation: When entering into the control unit: The function section flashes the running code and the data section display the current parameter uninterrupted. Set parameters: Press “Enter” key to enter the second-level menu, and set parameters with the “ˇ” “ˉ” keys. Now the function section displays the running code uninterrupted and the data section flashes the set parameters. Finish setting: After press “Enter” key to the end, the function section will display the running code uninterrupted and the data section display the set parameters uninterrupted. Back: Press “Back” key to the previous menu, and long press the “Back” key to exit the operation. 62 Setting is done
ķ Display unit 1 (d1) operation:
When entering into the display unit 1:
The function section display running code uninterrupted and the data section display the current
value uninterrupted.
“ˇ” “ˉ”Keys are invalid in the operation.
ĸ
If no operation is performed within 1min, it will automatically return to the normal display.
The code of data section
◆
For example: How to Display low pressure
ķ Long press “Fuc” key for more than 2s to enter the first-level menu: the function section
flashes “CU” code and the data section is blank.
ĸ Switch with the “Fuc” key again: the function section flashes “d1” code and the data section is
blank.
Ĺ Press “Enter” key to enter the second-level menu: the function section flashes “NH” code and
the data section display the current suction temperature.
ĺ Switch with the “Fuc” key to display low pressure: the function section flashes “PL” code and
the data section display the current low
DIP section
The centralized control address DIP switch indicates the centralized control address required when different
refrigerating systems are controlled in a centralized manner. The default factory setting is "0000000".
If it is not required to use centralized control between multiple refrigerating systems, this DIP switch can
retain the factory settings without being changed.
If it is required to use centralized control between multiple refrigerating systems, set the DIP switch must be
set as follows:
DIP1
DIP2
DIP3
DIP4
DIP5
DIP6
DIP7
Address No.
0
0
0
0
x
x
x
0
1
0
0
0
x
x
x
1
0
1
0
0
x
x
x
2
1
1
0
0
x
x
x
3
0
0
1
0
x
x
x
4
1
0
1
0
x
x
x
5
0
1
1
0
x
x
x
6
1
1
1
0
x
x
x
7
0
0
0
1
x
x
x
8
1
0
0
1
x
x
x
9
0
1
0
1
x
x
x
10
1
1
0
1
x
x
x
11
0
0
1
1
x
x
x
12
1
0
1
1
x
x
x
13
0
1
1
1
x
x
x
14
1
1
1
1
x
x
x
15
Ultra Heat GMV Multi VRF
for North America
63for North America Ultra Heat GMV Multi VRF For example, Address No.4 of ODU setting as: Defines and differentiates addresses of different systems in the case of centralized control by multiple systems. The address DIP switch is used only when centralized control is required. Otherwise, the factory settings are used without being changed. CAUTION: Function DIP switch must be set when the ODU is powered off, and then the settings are valid after the ODU is powered on. The meaning of running code: Sorts Function section Data section Remarks Control Unit CU Blank Set evaporation temperature AE Default:N Set condensation AC Default:N temperature capacity, select H; else select L. Quickly check Ft The current parameter Use the “ˇ” “ˉ” keys to switch ON, OF. Vacuum operation A8 The current parameter Set defrosting mode H1 The current parameter Set refrigerant recovery mode A2 The current parameter Display Unit 1 d1 Blank Suction temperature. Display suction temperature NH For example, 15 represents 15ć Display discharge temperature Discharge temperature. NP For example, 70 represents 70ć Low pressure. For example, 95 represents Display low pressure PL 0.95Mpa High pressure. For Display high pressure PH example, 280 represents 2.80Mpa 64 Use the “ˇ” “ˉ” keys to switch L, N and H. If you want to get a higher cooling capacity, select L; else select H. Use the “ˇ” “ˉ” keys to switch L, N and H. If you want to get a higher heating ON represents that the unit is running the current state. OF represents that the unit isnot running the current state. “ˇ” “ˉ”Keys are invalid in the operation.
10.4 Parameters reference value for the normal operation of unit
No.
Parameters name
Unit
Reference value
1
Outdoor
temperature
ć ̣
After compressor is started up, normal discharge
temperature for cooling is 60~105ć , which is
10ć above more than the high pressure
saturation temperature.
2
Discharge
ć
temperature
The normal temperature for heating is 50ć
~100ć, which is 10ć above more than the high
pressure saturation temperature.
Under the cooling mode at the ambient temperature
of 25~40ć , the high pressure value of the system
is 2.2~3.5MPa;
3
High pressure
MPa
Under the heating mode when the ambient
temperature is above -5ć . The high pressure
value of the system is 2.0~3.5MPa.
Under the cooling mode at the ambient temperature
of 25~40ć , the low pressure value of the system
is 0.6~1.5MPa;
4
Low pressure
MPa
Under the heating mode when the ambient
temperature is above -5ć . The low pressure value
of the system is 0.4~1.5MPa.
5
Current
A
Current should be no more than 20A during
normal operation for compressor
Ultra Heat GMV Multi VRF
for North America
65for North America Ultra Heat GMV Multi VRF 66 MAINTENANCE
DEBUGGING & MAINTENANCE
1 Malfunction List
1.1 Error Code of Protection
Error Item
Code
Indoor Unit
Indoor fan protection
L1
L1
L1
Water overflow protection
L3
L3
L3
Anti-freeze protection
L5
L5
L5
Mode conflict
L6
-
L6
Indoor ambient temperature sensor error
d3
d3
d3
Indoor coil inlet temperature sensor error
d4
d4
d4
Indoor mid-coil temperature sensor error
d5
d5
d5
Indoor coil outlet temperature sensor error
d6
d6
d6
Indoor humidity sensor error
d7
d7
d7
Jumper error
d9
d9
d9
Outdoor ambient temperature sensor error
b1
b1
b1
Outdoor heat-exchanger coil outlet
temperature sensor error
b3
b3
b3
Vapor-liquid separator inlet temperature
sensor error
b6
b6
b6
High pressure protection
E1
E1
E1
Low pressure protection
E3
E3
E3
Discharge protection
E4
E4
E4
Refrigerant-lacking protection
Ed
E0
Ed
Compressor power protection
EN
E0
EN
Intermediate vapor injection temperature
sensor error
Fb
E0
Fb
EEPROM read-write error
F0
F0
F0
High pressure sensor error
F1
F1
F1
Middle pressure sensor error
F2
E0
F2
Low pressure sensor error
F3
F3
F3
Discharge temperature sensor error
F6
F6
F6
High pressure switch
Fd
E0
Fd
AC over current
P5
P0
P5
IPM over current protection
P6
E0
P6
Ultra Heat GMV Multi VRF
for North America
Outdoor Unit
Display
Display
67Ultra Heat GMV Multi VRF for North America IPM module overheat P8 P0 P8 Desynchronizing protection P9 P0 P9 Busbar over voltage protection PH P0 PH Phase current detection fault PC P0 PC Busbar under voltage protection PL P0 PL Capacitor charge error PF P0 PF Demagnetization protection PU P0 PU Communication error between indoor and outdoor units, indoor unit’s wired controller C0 C0 C0 485 communication error between main controller and drive controller C2 C2 C2 Fan motor error H0 H0 H0 PFC over current protection P4 E0 P4 PFC module overheat Pn P0 Pn Phase loss protection of compressor PE P0 PE Malfunction of lack of IDU C4 C4 C4 485 communication error between main controller and debugging controller C1 - C1 1.2 Error Code of Limiting Frequency Reduction Protection Error Item Code Display Limited frequency reduction for high pressure protection FA Limited frequency reduction for low pressure protection FH Limited frequency reduction for discharge temperature protection Limited frequency reduction for AC current protection F8 Limited frequency reduction for power protection FC Limited frequency reduction for IPM temperature protection FL Limited frequency reduction for PFC temperature protection FE 68 F9 Only the outdoor unit displays the code
1.3 Operation Code
Operation
Code
Indoor Unit Display
Outdoor Unit Display
Trail run
A0
A0
A0
Fluorine recycle
A2
A2
A2
Defrosting
A3
A3
A3
Oil return
A4
-
A4
Testing online
A5
A3
A4
Vacuumization
A8
A8
-
Test module
SS
-
SS
Note: Last ten records of protection shutdown or limited frequency reduction for protection can
be searched through the debugging controller.
2 Troubleshooting
Troubleshooting principle
(1) Communication malfunction
communication
malfunction
check whether indoor
unit and outdoor unit is
power supplied
measure whether the
communication wire
is in normal
Ultra Heat GMV Multi VRF
for North America
Energize indoor unit
and outdoor unit
repiace
communication
wire
69for North America Ultra Heat GMV Multi VRF (2) Low-pressure protection Low pressure protection Me asure wh ethe r the low Me asure wh ether the no yes Re place ma in board of pressure is too low with pressure switch is outdoor unit ma no me ter norm al Re place pressure yes no sw itch yes Ch eck wh ethe r the refrigerant-charging volum e Ch arge refrige rant according to the volum e on nam eplate; check wh ethe r there‹s leakage for the system is insufficient no no Ch eck wh ethe r ga s valve and liquid valve are ope n Op en the valve comp letely comp letely yes no Check wh ether the panel of outdoor unit is covered and sealed well Co ver the pa ne l of outdoor unit we ll yes no Check wh ether the air can blow sm oothly at the heat exchanger Eliminate obstacles and sund ries of indoor unit and outdoor unit yes no Ch eck wh ethe r the indoor fan Me asure the circum stances of fan motor and signal inpu t and outdoor fan can operate yes no Me asure the circum stances of swing Ch eck wh ethe r the indoor sw ing blade is ope n mo tor and sign al inp ut comp letely yes no Ch eck wh ethe r the electronic expa nsion valve for indoor Enga ge valve and coil unit and outdoor unit can operate no rm ally yes no Ma inly che ck the air inlet and air outlet conne cting indoor unit and main pipe , and the expa nsion valve for indoor unit Blockage for system pipe line and outdoor unit. Replace electronic expa nsion valve , dry strainer, ect. 70
for North America
Ultra Heat GMV Multi VRF
(3) Discharge temperature protection
71for North America Ultra Heat GMV Multi VRF (4) Mafunction of temperature sensor (5) Malfunction of sensor (6) Unit and main board can’t be energized 72
Ultra Heat GMV Multi VRF for North America (7) Failure start-up 3 Power Distribution of Unit 3.1 Power distribution of unit The main loop is showed by bold line (line width: 1mm); the control loop is showed by slim line (line width: 0.2mm). Power wiring board Filter plate Drive board Compressor Fan Temperatuer sensor,electric 4-way valve,by-pass valve,electric heating belt expansion valve,high pressure and low pressure and control signal switch and so on （Bold line is the power line and the slim line is the control line） 3.2 Main electric parts Name Photo Function introduction There are three complemental IGBT tube inside the IPM module. They are controlled by PWM wave and then bring the pressure of DC bus bar to different stator windings of compressor at different stage, and then generate current on IPM Module stator winding, and push the operation of rotor and then drive compressor to operate. Four diodes and two MOS pipe are intergrated inside the PFC module. It will transform AC input power into DC power. Meanwhile, MOS pipe is controlled by PWM wave. Pressure PFC module will be increased by induction. 73
for North America Ultra Heat GMV Multi VRF 3.3Circuit diagram Note: This drawing is just for reference; please always refer to the electric wiring stuck to the unit for actual wiring. 3.3.1Circuit diagram of outdoor unit W5 YEGN PE XT1 G POWER L2 W1 BN L L AC-L L2 W2 BU L8 W12 RD W N N N AP1 W E L8 W14 G W8 YEGN W11 YE V COMP DRIVE BOARD V U LA YEGN L8 W10 BU L5 L4 U YE LX2-1 G G COMPRESSOR LX1-1 L6 L7 L6 L7 WH BN L3 W3 BN LX1-2 CN485 L3 LX2-2 BU W4 L5 L4 BU LA LOW PRESSURE MDEIUM PRESSURE HIGH PRESSURE DISPLAY SRNSOR SRNSOR SRNSOR SOLENOID VALVE 4 W7 BN SOLENOID VALVE 1 SOLENOID VALVE 2 INDOOR MAIN BOARD BOARD PC 4-WAY VALVE D1 D2 CAN SP SP SP CAN G XT2 4YV YV1 YV2 YV4 INDOOR UNIT 1 D2 D1 YEGN 4 W17 W18 W6 3 BK RD INDOOR MAIN CAN AC-L N PE BOARD CAN CN485-XS CN485-QD1 CN485-QD CN-CAN1 L-PRESS M-PRESS H-PRESS WAY 4 VA-1 VA-2 VA-4 INDOOR UNIT 2 (YE) (RD) (WH) (BU) AP2 INDOOR MAIN MASTER BOARD CAN CAN BOARD INDOOR UNIT 3 T-SENSOR1(WH) T-SENSOR2(RD) +($77,(˄2*˅ HPP2 OFAN2(GN) OFAN1(WH) +($77,(˄*1˅ FA(WH) )%˄5'˅ RT4 RT5 RT2 RT3 INDOOR MAIN CAN 5 5 © © © © © BOARD P HP TEMPERATURE SENSOR LOW PRESSURE SUCTION OUTDOOR AMBIENT INDOOR UNIT n MEDIUM PRESSURE SUCTION TEMPERATURE SENSOR TEMPERATURE SENSOR TEMPERATURE SENSOR TEMPERATURE SENSOR DISCHARGE M1 M2 DEFROSTING EKV EKV COMPRESSOR BAND HEATER HIGH PRESSURE SWITCH BOTTOM BAND HEATER EXPANSION VALVE A EXPANSION VALVE B ELECTRONIC ELECTRONIC FAN UPPER FAN LOWER 74
for North America
Ultra Heat GMV Multi VRF
3.3.2 Circuit Diagram
(1) Low Static Pressure Duct Type IDU
GMV-ND07PLS/A-T(U) ~ GMV-ND22PLS/A-T(U):
Environment
IND OOR UNI T
XT1
Ou t
temp.
sensor
I n
temp.
sensor
Temp.
Sensor
1RD
Water
pump
L1
L2
L1
L2
Water
Swi tch
2WH
~M
RT1
RT2
RT4
12BU
13BK
G
θ
θ
20K
θ
POWER
15K
20K
G
X2
X1
CN35
CN8
CN25
CN26
CN2
CN3
CN28
G
CN41
8
AP 3
CN1
Di spl ay
Communi cati on
cord interface
XT2
9
board
CN42
8RD
9BK
10BN
11OG
CN2
D1
D2
H1
H2
AP 1
Op tional accessory
CN12
22K
R
CN31
6BU
CN19
CN20
Op tional
accessoryThe uni t wi th
CN21
CN22
CN23
CN6
Wi red
control l er
Hu mi di ty Sensor
shoul d connect
i t to CN31,
Ot herwi se
conne ct CN31
wi th a 22K
resistance.
Hu mi di ty
i nterface
sensor
5
5
5
Ou tdoor
Wi red
control l er
4
or
i ndoor
EKV
M2
M3
M4
M1
AP 2
Up - Down
swi ng motor
electroni c
expansi on
val ve
Ho rizontal
auto swi ng
Up - Down
swi ng motor
DC motor
motor
Op tional accessory
No teX5 -core Electroni c expansion valve conne ct to CN20.
6-core El ectronic expansi on val ve conne ct to CN19;
(2) 4-way Cassette Type IDU
GMV-ND07T/A-T(U) ~ GMV-ND48T/A-T(U):
75for North America Ultra Heat GMV Multi VRF (3) Wall Mounted Type IDU GMV-N07G/A3A-D(U)~GMV-N24G/A3A-D(U): RECEI VER AND DI SPLAY BOAR D Electroni c expansion valve IND OOR UNI T Di spl ay YEGN POWER EKV G G BK L1 L2 RD GN Electri cal box Evaporator 13 G AC - L N G YEGN RT1 15K ( ROOM ) ( PI PE-I N) ( PI PE-ON ) CN3 CN25 CN41 CN42 CN20( FB) Environment temp.sensor Evaporator I n/outdoor unit XT1 RD D1 D2 ( COM - OUT ) ( Humi d) RT2 20K BN BK CN12 AP1 H1 I n temp. sensor Wi red control ler OG H2 RT4 20K 22K CN2 WH WH CN31 Ou t temp. sensor CN6 CN7 CN22 X1 HE AT - N1 HE AT - L1 5 RD WH BN BK WH BN M1 Steppi ng M M2 Motor Motor 4 Removal of Parts 4.1 Key parts Photo Name Function Core part of air conditioning system. It sucks low temperature and low pressure gas, compress it to high temperature and high pressure gas, and then compressor discharge it. Electronic expansion Throttling device. It transforms high pressure valve refrigerant liquid into low pressure steam. 4-way valve between cooling and heating. 76
4.2 Removal of key parts 4.2.1GMV-36WL/B-T(U)\GMV-48WL/B-T(U) series unit Remark: Before removing the panel, please make sure that the unit is disconected with the power Process Photo Operation Instruction 1. Remove top cover Ultra Heat GMV Multi VRF for North America It stays between discharge outlet of compressor and inlet of condenser. It used for separating the lubricant Oil separator oil of compressor when the high temperature and high pressure refrigerant gas is discharged from the compressor. It stays between outlet of evaporator and suction ouitlet Vapour liquid separator of compressor. It used for separating low temperature and low pressure refrigerant. It used for separating middle pressure gas from the refrigerant, which will be sucked in the compressure. Accumulator Control to the high-voltage current: open upon power Solenoid valve on; close upon power off It used for connecting indoor unit and outdoor unit, and Cut-off valve used for maintenance and installation. Removal operation for panel screwdriver Ɣ+ROGWKHWRSFRYHUXSZDUGVDQGWKHQSXWLWRQ 77
for North America Ultra Heat GMV Multi VRF 2. Remove front side plate sub- assy 3. Remove front panel and grille 4. Remove left side plate and rear side plate 5HPDUN %HIRUHUHPRYLQJWKHPRWRrSOHDVHPDNHVXUHWKDWWKHXQLWLVGLVFRQQHFWHGZLWKWKHSRZHr. Process 3KRWR Operation Instruction 1. Remove grille 78 screwdriver Ɣ+ROGWKHIURQWVLGHSODWHXSZDUGVDQGWKHQSXWLW ZLWKVFUHZGULYHU SODWHZLWKVFUHZGULYHU ƔUHPRYHWKHUHDUVLGHSODWH Removal operation for blade Ɣ 7KHQUHPRYHWKHJULOOH
2. Remove blade 3. Remove motor ƔWKHQUHPRYHWKHSRZHUFRUGRIPRWRU Ɣ TDNHRXWWKHGDPDJHGPRWRU ,QVWDOOPRWRU 5. $VVHPEOH XQLW 5HPRYDORSHUDWLRQRIFRPSUHVVRU 5HPDUN %HIRUHUHPRYLQJWKHFRPSUHVVRrSOHDVHPDNHVXUHWKDWWKHUH’VQRUHIULJHUDQWLQVLGHWKHSLSHOLQHDQGWKHSRZHULV GLVFRQQHFWHG 3URFHVV 3KRWR 2SHUDWLRQ,QVWUXFWLRQ for North America Ultra Heat GMV Multi VRF Ɣ5HSODFHWKHPRWRrWLJKWHQVFUHZVZLWK VFUHZGULYHUDQGWKHQFRQQHFWWHKSRZHUFRUGRI motor Ɣ $VVHPEOHWKHXQLWLQWKHWKHFRQYHUVHVHTXHQFH 79
Ultra Heat GMV Multi VRF for North America 1. Remove wiring cover of compressor 2. Disconnect compressor and connected pipeline 3. Loose nuts compressor 4. Remove the chassis from compressor 5. Fix the new compressor at the chassis 6. Connect suction pipe and discharge pipe of copressor and pipeline of system again 80 screwdriver Ɣ Then pull out the power cord Note: When removing the power cord, make marks for different color power cords and corresponding wiring terminals for wrong terminal. ƔWeld suction pipe and discharge pipe of compressor ƔWKHQSXOORXWWKHFRQQHFWLRQSLSHIURPWKH compressor burn out other parts. Twist off four nuts for compressor with wrench Twist off the nuts for compressor with wrench Ɣ Take out the compressor and replace it Note: When replacing the compressor, do not damage nearby pipelines and other parts bottom of compressor ƔWeld the connection pipe of compressor, connect the pipeline and compressor burn out other parts
7. Connect the power cord of compressor well 8. ChecN DQd open the upper cover SODWH 5HPRYDORSHUDWLRQIRUZD\YDOYH 5HPDUN %HIRUHUHPRYLQJWKHZD\YDOYHSOHDVHPDNHVXUHWKDWWKere’VQRUHIULJHUDQWLQVLGHWKHSLSHOLQHRIV\VWHPDQGWKHQSRZHULV disconnected. Process Photo 2SHUDWLRQ,QVWUXFWLRQ 1. Disconnect the coil of wD\ YDOYHIURPWKH ZD\YDOYH 2. Disconnect WKHZD\YDOYH DQGFRQQHFWLRQ pipeline for North America Ultra Heat GMV Multi VRF screwdriver ƔFRQHQFWWKHSRZHUFRUGZHOODJDLQ 1RWH :KHQFRQQHFWLQJWKHSRZHUFRUGPDNH PDUNVIRUGLfIHUHQWFRORUSRZHUFRUGVDQG FRUUHVSRQGLQJZLULQJWHUPLQDOV Ɣ&KHFNZKHWKHUWKHSLSHOLQHLVFRQQHFWHGZHOO Ɣ&KHFNZKHWHKUDOOSDUWVDQGFRQQHFWLRQZLUHV DUHFRQQHFWHGZHOO Ɣ,IWKHUH’VQRSUREOHPDIWHUFKHFNLQJLQVWDOOIURQW DQGUHDUFRYHUSODWHV Ɣ5HPRYHWKHFRLORIZD\YDOYHDW ƔWHOGWKRVHFRQQHFWLRQVSRWVRQ ZD\YDOYHDQGWKHQSXOORXWWKH connection pipe 1RWH 'XULQJZHOGLQJSURFHVVGRQRW 81
for North America Ultra Heat GMV Multi VRF 3. Replace 4-way valve 4. Replace 4-way valve Remival operation for eletronic expansion valve Remark: Before removing the electronic expansion valve, please make sure that there’s no refrigerant in th pipeline of system and the power is disconnected Process Photo Operation Instruction 1. Disconnec the electronic expansion valve from the pipeline 2. Take out the electronic expansion valve and replace it 82 Ɣ5HSODFHZD\YDOYH Note: During welding process, do not ƔWeld the connection position between 4-way valve and pipeline Note: During welding process, do not Ɣ5HPRYHWKHFRLORIHOHFWURF ƔWeld the connection pipe for expansion valve, and then pull out the connection pipe Note： During welding process, do Take out the electronic expansion valve and replace it
3. Replace electronic expansion valve Removal operation of gas liquid separator Remark: Before removing the gas liquid separator, please make sure that there’s no refrigerant inside the pipeline of system and disconnect the power Process Photo 2SHUDWLRQ,QVWUXFWLRQ 1. Disconnect inlet pipe and exit pipe of gas liquid separator 2. Replace gas liquid separator 3. Replace gas liquid separator for North America Ultra Heat GMV Multi VRF ƔWeld the connection pipe of electronic expansion valve Ɣ,QLVWDOOWKHFRLORIHOHFWURQLF expansion valve Note： During welding process, do Ɣ Weld those two connection spots on the gas liquid separator and then pull out the connection pipe Note: During welding process, do not Ɣ/RRVHVFUHZVZLWKVFUHZGULYHU Ɣ5HSODFHJDVOOLTXLGVHSDUDWRU ƔWeld the pipe connected with gas liquid separator Ɣ)L[WKHVFUHZVRIJDVOLTXLG separator well again Note: During welding process, do not 83
Ultra Heat GMV Multi VRF for North America 4.3 Assembling and Disassembling Key Parts of IDUs6 Common Maintenance ◆Low static pressure duct similar except the numbers of louvers and motors. Motor and fan Precondition: The power supply has been disconnected. Step Diagram Operation Procedure 1. Remove the line connecting to the motor. 2. Remove the return frame. 3. Remove the air return cover plate. 4. Remove the rear propeller housing. 5. Remove the front propeller housing. 6. Loosen the louver and motor. Ɣ5HPRYHWKHPRWRUIURPWKH support and remove the louver from the motor axle. Then, remove the motor. Ɣ)RUPRWRUVWKDWDUH accompanied with supports, the supports need removing as well. 7. Remove the motor. 8. Install a new motor. 84 Ɣ8VHDVFUHZGULYHUWRXQVFUHZ the electric box cover. Ɣ5HPRYHIURPWKHPDVWHUERDUG the line connecting to the motor and remove the tie. Ɣ8VHDVFUHZGULYHUWRXQVFUHZ the air return cover plate. Ɣ/RRVHQWKHIDVWHQHUVWKDW connect the rear propeller housing with the front propeller housing and remove the rear propeller housing. Ɣ8VHDVFUHZGULYHUWRXQVFUHZ the front propeller housing and then remove the propeller housing. Ɣ8VHDKH[DJRQWRXQVFUHZWKH louver and loosen the fasteners of the motor. Ɣ$VVHPEOHXQLWVEDVHGRQWKH reverse order of this procedure and power on the units for test.
◆Four-way Cassette Step Diagram Operation Procedure 1. Unscrew the water tray. 5HPRYHWKH water tray. Ɣ5HPRYHWKHZDWHUWUDy. 3. Unscrew the ORXYHr. Ɣ8se a wrench to unscrew the louYer. 5HPRYHWKH ORXYHr. Ɣ5HPRYHWKHORXYHr. 5. Unscrew the motor. 6. Replace the motor with a new one. Ultra Heat GMV Multi VRF for North America Motor and fan Loosen the screws Ɣ8VHDVFUHZGULYHUWRXQVFUHZWKH water tray. Ɣ8VHDVFUHZGULYHUWRXQVFUHZWKH motor. Ɣ5HSODFHWKHPRWRUZLWKDQHZRQH 85
Ultra Heat GMV Multi VRF for North America 7. Screw the motor. ,QVWDOODQG VFUHZWKHORXYHr. ,QVWDOODQG VFUHZWKHZDWHU WUDy. 6WHS 'LDJUDP 2SHUDWLRQ3URFHGXUH 8QVFUHZWKHZDWHUWUDy. 5HPRYHWKHZDWHUWUDy. Ɣ5HSODFHWKHZDWHUWUDy. 5HPRYHWKHGUDLQDJHGXFW DQGXQVFUHZWKHSXPS 86 Ɣ8VHDVFUHZGULYHUWRVFUHZWKH motor. Ɣ,QVWDOOWKHORXYHUDQGXVHDZUHQFK WRVFUHZWKHORXYHr. /RRVHQWKH VFUHwV Ɣ8VHDVFUHZGULYHUWRVFUHZWKH ZDWHUWUD\ 3XPS /RRVHQWKH VFUHwV Ɣ8VHDVFUHZGULYHUWRXQVFUHZWKHZDWHUWUDy. 8QVFUHZWKHRXWOHWSLSe 8QVFUHZWKHSXmS 5HPRYHWKHGUDLQDJHGXFWDQGXVHD VFUHZGULYHUWRXQVFUHZWKHSXPS
Ultra Heat GMV Multi VRF for North America 4. Replace the pump. Ɣ5HSODFHWKHSXPS 1. Screw the outlet pipe 2. Screw the pump 5. Connect the drainage duct and screw the new pump. Ɣ&RQQHFWWKHGUDLQDJHGXFWDQGXVHD screwdriver to screw the new pump. Tighten the screws 6. Install and screw the water tray. Ɣ8VHDVFUHZGULYHUWRVFUHZWKHZDWHUWUDy. ◆Wall Mounted T\SH,'8 Removal of Fan Motor Remark: before removing, making sure power is disconnected. Step Diagram Operation Procedure ƔTake off the axle bush of the louver. Ɣ5HPRYHWKHORXYHr. 1.Remove the louver 2.Open the front panel Ɣ+ROGWKHLQGHQWVRQERWKVLGHVRIWKH panel and pull it out in the direction shown by the arrow. box cover with a screwdriver. Take off the box cover 2. ƔDetach the ambient temperature sensor from the conduit. 3. Remove the electrical box cover 2 87
Ultra Heat GMV Multi VRF for North America 4. Remove the front panel assembly panel assembly. Ɣ5HPRYHWKHIURQWSDQHODVVHPEOy. 5. Remove the electrical box cover 1 6. Remove the main board Ɣ5HOHDVHWKHZLULQJWHUPLQDOVFRQQHFWHG to the main board. Ɣ5HPRYHWKHPDLQERDUG 7. Remove the electrical box ER[ZLWKDVFUHZGULYHr. Ɣ5HPRYHWKHHOHFWULFDOER[ 8. Remove the evaporator 9.Remove motor’VSUHVVLQJSODWH SUHVVLQJSODWHZLWKDVFUHZGULYHUDQG then remove it. 10. Remove the motor and fan 11. ,QVWDOODQHZPRWRr. Ɣ$VVHPEOHXQLWVEDVHGRQWKHUHYHUVHRUGHU 88 Ɣ3UHVVRQWKHEXFNOHRIWKHER[FRYHU DQGWKHQWDNHRff the cover. Ɣ8VHDVFUHZGULYHUWRXQVFUHZ FRQQHFWLRQSLSHRQWKHEDFNRIWKHXQLW DQGWDNHRff the press plate. Ɣ8QVFUHZWKHVFUHZVRIHYDSRUDWRU ZLWKDVFUHZGULYHUDQGWKHQUHPRYHWKH evaporator. ƔTDNHRff the motor and fan directly. Ɣ8VHDVFUHZGULYHUWRXQVFUHZWKH VFUHZVFRQQHFWLQJWKHPRWRUDQGWKH fan. RIWKLVSURFHGXUHDQGSRZHURQWKHXQLWVIRU test.
5 Vacuum drying for the system 5.1 Selection requirement for the vaccum pump Do not use different vacuum pump for vaccum-pumping for different refrigerant system ； The final vacuum for the vacuum pump should reach -0.1MPa. The air discharge volume for the vacuum pump should reach 4L/S above; The precision of vacuum pup should reach 0.02mmHg above; The system vacuum pump for R410A must be with check valve. 5.2 Operation procedure and notices for Vacuum drying 1) Operation procedure a .Before vacuum-pumping, please confirm that the cut-off valve for gas pipe and liquid pipe is at off status; b .Use charging conduct pipe to connect the governing value and vacuum heat pump to the detection joint of gas valve and liquid valve; c .After vacuum-pumping for 4h, check whether the vacuum degree is reached to -0.1MPa or above; If not, there may be gas leakage. Please perform the leakage inspection again. If there’s no gas leakage, please vacuum pump for another 2h. d .If the required vacuum degree cannot be satisfied after vacuum-pumping for two times, there are water inside the pipeline. please drain out the water by the method of vaccum damage. The detailed method: charge 0.05MPa nitrogen into the pipeline, vacuum pump for 2h and then keep the vacuum for 1h. If -0.1 MPa vaccum degree still can’t be reached, repeat this operation unitl the water is drained out completely. e . After evacuation, close the regulating valve, and 1 hour later check if its pressure goes up or not. 2) After the vacuum pump is finished, turn off the valve of governing valve and stop vacuum pump and keep it for 1h. Please confirm that the pressure of governing valve hasn’t been increased. a .Vacuum pump for the gas pipe and liquid valve at the same time; Pressure gauge connector valve Gas liquid Refrigerant cylinder Spring balance b .When turn off the vacuum pump to stop vacuum-pumping, please turn off the valve at first and then de-energize the vacuum pump; c .Keep the vacuum pump for 2h and confrm that the pressure of vacuum meter hasnot been increased; 5.3 Fill and charge refrigerant 5.3.1 Filling procedure of regrigerant Refrigerant quantity of outdoor unit before delivery: Model GMV-36WL/B-T(U) GMV-48WL/B-T(U) Refrigerant Qty (kg/oz) 6.5(229) 6.5(229) Ultra Heat GMV Multi VRF for North America Connector on gas side Connector on liquid side 89
Ultra Heat GMV Multi VRF
for North America
NOTICE
(1) The refrigerant amount charged before delivery doesn’t include the amount that needs to be added
to indoor units and the connection pipeline.
(2) Length of connection pipe is decided on site. Therefore the amount of additional refrigerant shall be
decided on site according to the dimension and length of field-installed liquid pipe.
(3) Record the amount of additional refrigerant for convenience of after-sales service.
Calculation of the amount of additional refrigerant
Calculation method of the quantity of additional refrigerant (based on liquid pipe)
4XDQWLW\RIDGGLWLRQDOUHIULJHUDQW OHQJWKof liquid pipe X quantity of additional refrigerant
per meter(39-3/8inch)
Diameter of
liquid pipe
(mm/inch)
ĭ
ĭ )
ĭ )
ĭ )
ĭ )
ĭ
kg/m
0.1
0.11
0.022
oz/inch
0.31
0.22
2
0.099
0.020
NOTICE! Liquid pipe that is within 20m(65-5/8feet) doesn’t need to be added with
refrigerant.
First confirm that there is no leakage from the system.When compressor is not working,
FKDUJHDGGLWLRQDO5$ZLWKVSHFLILFDPRXnt to the unit through the filling opening of the
liquid pipe valve of the outdoor unit. If required amount cannot be quickly filled due to
pressure increase of the pipe, then set the unit in cooling startup and fill refrigerant from the
low pressure check valve of the outdoor unit.
Calculation example
ODU
IDU
Indoor unit
：
No.
IDU ①
IDU ②
IDU ③
IDU ④
Model
Duct type GMV-ND18PLS/
Duct type GMV-ND12PLS/
Duct type GMV-ND09PLS/
$7 8
Duct type GMV1' 3/6$7 8
$7 8
$7 8
Liquid pipe:
No.
$
B
C
D
Pipe size
ij PP LQFK)
ij PP LQFK)
ij PP LQFK
ijPP LQFK
Length
P IHHW
P IHHW
P IHHW
P IHHW
No.
a
b
c
d
Pipe size
ij PP LQFK)
ijPP LQFK)
ijPP LQFK
ijPP LQFK
Length
P IHHW
P IHHW
P IHHW
P IHHW
Total length of each liquid pipe
ij $%&D P Ieet)
ij 'EFG 1P IHHW
90NOTICE! Liquid pipe that is within 20m(65-5/8 feet) doesn’t need to be added refrigerant.
Therefore, the minimum quantity of additional refrigerant = (23-20)×0.054+11×0.022=
0.404kg(14oz).
5.3.2 Operation procedure for adding refrigerant
(1) Put the charging tank on the weightometer, record the reading and then calculate the
data after charging refrigerant;
(2) Use charging conduct pipe to connect the double-ended manometer with governing valve
and liquid-charging tank to the detection head of gas valve and liquid valve. Before
connection, please release some refrigerant and then drain out the air inside the charging
conduct pipe.
Confirm that the gas valve and liquid for outdoor unit is at of status.
(3)
(4) When the unit hasn’t been turned on, open the governing valve for the liquid-charging
tank and then charge refrigerant from gas pipe and liquid pipe at the same time.
(5) Obeserve the data weightometer, close the valve after it is reached to requirement and
then close the valve for liquid-charging tank;
(6) If the refrigerant can’t be added completely, add it when turning on the unit. Charge
refrigerant from the detection joint of cooling gas pipe or detection joint of gas vavle.
5.3.3 Notice for filling refrigerant
(1) Calculate the section and length of cooling liquid pipe preciously for the precision
refrigerant-charing volume.
(2) Measure the additional refrigerant volume preciously;
(3) Invert to charge the R410A for ensuting the liquid-charging;
(4) When the temperature is low, heat the liquid-storage tank with hot water or hot
wind for helping refrigerant-charging. However, prohibit use flame to heat the
liquid-storage tank directly. Otherwise, it may cuase personal injury or property
damage due to explosion.
5.4 Airtightness test
5.4.1 Importance of airtightness test
The airtightness of VRF system is the leak tightness of the pipeline for refrigerant,
which the guarantee for safe and reliable operation. The leakage of refrigerant may
affect the operation of air conditioner seriously, or even damage compressor and then
lead to breakdown of system. Therefore, it needs to perform the airtightness test.
If the there’s gas leakage after the system is installed completely, because the indoor
celling decoration are all finished, it is will be very difficult to find out the leakage point.
Thus, the airtightness test of the system must be finished before finishing indoor
decoration.
5.4.2 Operation procedure for the airtightness test
(1) Before ex-factory,cut-off valve for gas pipe and liquid pipe of outdoor unit is
turned off, Please confirm that before operation;
(2) Before test please smear a little corresponding lubricant oil at Blanking plug and
pipe terminal, and use two wrenches for fixing blanking plug.
(3) Do not allow to connect the pipeline of outdoor unit for test during airtightness test.
(4) The system test pressure for R410A is 4.15MPa (3.0MPa for R22 refrigerant
system). Nitrogen must be used as the medium for the airtightness test and the nitrogen
should be dry. Increase pressure slowly for three steps:
Ultra Heat GMV Multi VRF
for North America
91Ultra Heat GMV Multi VRF for North America Step 1: Increase pressure slowly to 0.5MPa, stop for 5min and then check the gas leakage. Big leakage may be found out; Step 2： Increase pressure slowly to 1.5MPa, stop for 5min to check the airtightness. Small leakage may be found out; Step 3: Increase pressure slowly to 4.15MPa for R410A slowly (3.0MPa for R22 refrigerant system), stop for 5min and perform the strength test. Minor leakage or sand hole may be found. Increase pressure to test pressurem, keep it for 24h and observe whether the pressure is decreasing. If not, the pressure is qualified. 5.4.3 Cautions a .The test manometer range for R410A should be 4.5MPa above (3.5MPa above for R22 refrigerant system); b .Record the data on manometerk, ambient temperature and test time at the same time; c .Pressure modification: when temperature changes 1℃, the temperature will change 0.01MPa correspondingly. d .Pressure should be kept the same. e .If it needs to keep pressure for a long time, decrease the pressire lower than 0.55MPa pr below. Long-time high pressure can lead to leakage at the welding position, which may cause risk. f .Before the airtightness for the pipeline of refrigerant is finished, do not allow to insulate and bundle the welding positions and connection position of bellmouth of indoor unit. Note: Before airtightness test, all welding lines can’t be insulated and bundled. 6 Exploded View of Unit and Parts’ List 6.1 Exploed view for outdoor unit and parts’ list (1) Model: GMV-36WL/B-T(U)\GMV-48WL/B-T(U) Exploded view: 92
Parts list: NO. Name of Part 1 Coping 01264100008P 1 2 Electric Box Cover 012020000071 1 3 Motor Support Sub-Assy 017012000032 1 4 Brushless DC Motor 15704100013 1 5 Brushless DC Motor 1570410001301 1 6 PFC Inductance 340032000005 1 7 Cable Cross Loop 76512008 1 8 Inductance Box Sub-assy 01394100625 1 9 Left Side Plate 01314100013P 1 10 Sensor Sub-assy 39008000141G 1 11 Diversion Circle 10474100001 1 12 Cabinet 01514100002P 1 13 Front Grill 01574100009 1 14 Front Side Plate 01314100012P 1 15 Axial Flow Fan 10434100004 2 16 Clapboard Sub-Assy 1244100043 1 17 Cut off Valve Sub-Assy 07334100077 1 18 Joint Plank groupware 01344100113 1 Ultra Heat GMV Multi VRF for North America GMV-36WL/B-T(U)\GMV-48WL/B-T(U) Product Code CN850W0380\CN850W0360 Part Code Quantity 93
for North America
Ultra Heat GMV Multi VRF
19
Liquid side stop Valve 07330000002
1
20
Underlay groupware
01894100090
1
21
Electrical Heater(compressure) 7651521215
1
22
Magnet Coil
4304000425
1
23
Electromagnetic Valve
43000054
1
24
Electromagnetic Valve groupware
43044100234
1
25
43044100232
1
Electromagnetic Valve groupware
26
Electromagnetic Valve
43003091
1
27
Magnet Coil
4304000439
1
28
Chassis Sub-assy
01194100051P
1
29
Drainage Connecter
06123401
1
30
Nage hole Cap
06813401
3
31
Fixity groupware（Compressor）
P
2
8
0
0
0
1
4
4
8
1
0
1
32
3
1
0
0
0
0
2
1
0
9
0
0
t
e
k
s
a
G
r
o
s
s
e
r
p
m
o
C
4
33
Compressor
00204100030
1
34
Underlay
01894100088
1
35
Underlay
01854100009
1
36
7
8
5
1
0
0
2
0
6
4
h
cti
w
S
tc
e
t
o
r
P
e
r
u
s
s
e
r
P
1
37
Oil Separator
07424105
1
38
Discharge Tube Sub-assy
04514100561
1
39
Suction Tube Sub-assy
04574100170
1
40
Gas side stop Valve
07334100079
1
41
4-Way Valve Assy
030152000095
1
42
Sensor (Low Pressure)
322101002
1
43
Magnet Coil
4304000431
1
44
4-way Valve
43000338
1
45
Sensor (High Pressure)
322101032
1
46
Electronic Expansion Valve
43044100172
47
Electric Expansion Valve Sub-Assy
43044100233
1
48
Electric Expand Valve Fitting
4304413205
1
49
Front Connection Board
01344100002P
1
50
Gland Bush
26904100134
1
51
e
ri
w
r
o
f
e
pi
P
26904100132
1
52
Right Connection Board
01344100003P
1
53
P
4
1
0
0
0
1
4
1
3
1
0
e
t
al
P
e
di
S
r
a
e
R
1
54
Handle
26904100016
2
55
Pipeline groupware
030205000005
1
3
7
1
0
0
1
4
4
0
3
e
vla
V
n
ois
n
a
p
x
E
cin
o
rtc
el
E
6
5
1
57
Electric Expand Valve Fitting
4304413220
1
58
Sensor(High Pressure)
322101036
1
59
Oil Returning Pipe Sub-assy 04224100556
1
60
Electromagnetic Valve
43003091
1
61
Magnet Coil
4304000415
1
62
Accumulator
07424100031
1
63
Gas-liquid Separator
07424140
1
64
Condenser Assy
000100000022
1
65
Rear Grill
01574100004
1
66
Electric Box Assy
100002000222
1
67
Testing Board
30118000096
1
68
Radiator
49018000136
1
69
Cable Cross Loop
43138000047
2
70
Reactor
07424140
1
71
Electric Box Sub-Assy
01394100626
1
72
Electric Box
26904100086
1
73
Main Board
300027000025
1
74
Gas-liquid Separator
30224100009
1
Above data is subject to change without notice,pls reference the SP in global service website
94
1GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI Add: West Jinji Rd, Qianshan, Zhuhai, Guangdong, China, 519070 Tel: (+86-756) 8522218 Fax: (+86-756) 8669426 E-mail: gree@gree.com.cn www.gree.com For continuous improvement in the products, Gree reserves the right to modify the product specification and appearance in this manual without notice and without incurring any obligations. JF00302969