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Owner's Manual Original Instructions Commercial Air Conditioners Multi Variable Air Conditioners Wall Mounted Type Indoor Unit Models: GMV-ND06G/B4B-T(U) GMV-ND07G/B4B-T(U) GMV-ND09G/B4B-T(U) GMV-ND12G/B4B-T(U) GMV-ND14G/B4B-T(U) GMV-ND18G/B4B-T(U) GMV-ND24G/B4B-T(U) GMV-ND30G/B4B-T(U) GMV-ND36G/B4B-T(U)
For correct installation and operation, please read all instructions carefully. Before reading the instructions, please be aware of the following items: (1) Instructions for installation and use of this product are provided by the manufacturer. (2) Installation must be performed in accordance with the requirements of NEC and CEC by authorized personnel only. (3) For the safe operation of this unit, please read and follow the instructions carefully. (4) During operation, total capacity of indoor units should not exceed the total capacity of outdoor units. otherwise, poor effect of cooling or heating may result. (5) Direct operators or maintainers should well keep this manual. (6) If this unit fails to operate normally, please contact our service center as soon as possible and provide the following information: 1) Content on the name plate (model number, cooling capacity, production code, ex-factory date). 2) Malfunction details (before and after the malfunction occurs). (7) Each unit has been strictly tested and proved to be qualified before ex-factory. In order to prevent units from being damaged or operating normally because of improper disassembly, please do not disassemble the unit by yourself. If you need to disassemble and check units, please contact our service center. We will send specialists to guide the disassembly. (8) All graphics in this manual is only for your reference. For sales or production reasons, these graphics are subject to change by manufacturer without prior notice. (9) This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance. DISPOSAL: Do not dispose this product as unsorted municipal waste. Collection of such waste separately for special treatment is necessary. Preface User Notice
Manufacturer will bear no responsibilities when personal injury or property loss is caused by the following reasons: (1) Damage the product due to improper use or misuse of the product. (2) Alter, change, maintain or use the product with other equipment without abiding by the instruction manual of manufacturer. (3) After verification, the defect of product is directly caused by corrosive gas. (4) After verification, defects are due to improper operation during transportation of product. (5) Operate, repair, maintain the unit without abiding by instruction manual or related regulations. (6) After verification, the problem or dispute is caused by the quality specification or performance of parts and components that produced by other manufacturers. (7) The damage is caused by natural calamities, bad using environment or force majeure. Exception Clauses
1 Safety Notices (Please be sure to abide them) ....................................................... 1 2 Product Introduction ................................................................................................. 2 2.1 Outline of the Unit and Main Parts .................................................................................... 2 2.2 Rated Operating Condition ............................................................................................... 2 3 Installation Instruction .............................................................................................. 3 3.1 Schematic Diagram of Installation Spaces ........................................................................ 3 3.2 Requirements for Communication Line ............................................................................. 3 3.3 Electric Installation ............................................................................................................ 4 4 Installation Instructions ............................................................................................ 5 4.1 Installation of Indoor Unit .................................................................................................. 5 4.2 The installation of the Rear Panel ..................................................................................... 6 4.3 Preparation of the Piping Hole .......................................................................................... 6 4.4 Installation of the Drainage Pipe ....................................................................................... 6 4.5 Installation the Connection Pipes ...................................................................................... 7 5 Wiring Work ................................................................................................................ 7 5.1 Connect Cables and Terminals of Wiring Board ................................................................ 7 5.2 Power Cord Connection .................................................................................................... 8 5.3 Connection of Communication Line of IDU and ODU ........................................................ 8 5.4 Connection of Communication Line of Wired Controller .................................................... 9 5.5 Illuminate for Connection of Wired Controller and Indoor Units Network ........................... 9 5.6 Installation of the Indoor Unit ............................................................................................ 9 5.7 Connection of External Water Pump ................................................................................10 6 The Best Usage Method .......................................................................................... 12 7 Maintenance Method ............................................................................................... 12 7.1 Cleaning Panel ................................................................................................................12 7.2 Cleaning the Air Filters .....................................................................................................13 7.3 Check before the Usage Season .....................................................................................13 7.4 Check after the Usage Season ........................................................................................14 8 Table of Error Codes for Indoor Unit ...................................................................... 14 9 Malfunction Analyzing ............................................................................................. 14 9.1 Service Center .................................................................................................................15 9.2 After-sales Service ...........................................................................................................15 10 Adjusting Method of the Air Direction .................................................................. 15 10.1 Adjusting Air Direction Up and Down .............................................................................15 10.2 Adjusting Air Direction Left and Right .............................................................................15 Contents
1 Safety Notices (Please be sure to abide them) If not abide them strictly, it may cause severe damage to the unit or the people. If not abide them strictly, it may cause slight or medium damage to the unit or the people. This sign indicates that the items must be prohibited. Improper operation may cause severe damage or death to people. This sign indicates that the items must be observed. Improper operation may cause damage to people or property. (1) This product can’t be installed at corrosive, inflammable or explosive environment or the place with special requirements, such as kitchen. Otherwise, it will affect the normal operation or shorten the service life of the unit, or even cause fire hazard or serious injury. As for the above special places, please adopt special air conditioner with anti-corrosive or anti-explosion function. (2) Follow this manual to complete the installation work. Please read this manual carefully before turning on or repairing the unit (3) Diameter of power cord should be large enough. The damaged power cord and connection wire must be replaced with special cables. (4) When the power cord is connected, please fix the electric box cover properly to avoid safety accidents. (5) Never fail to comply with the nitrogen-charging welding process. Do charge nitrogen when welding the pipes. (6) Never short circuit or cancel the pressure switch to prevent unit damage. (7) As for the unit controlled by the wired controller, connect the wired controller well firstly and then energize the unit; otherwise, the unit can’t operate normally. (8) When installation is finished, please check whether the drainage pipes, pipelines and electric wires are connected correctly to avoid water leakage, refrigerant leakage, electric shock or fire, etc. (9) Do not insert fingers or objects into air outlet or air return grille. (10) Open the door and window frequently to keep good ventilation for avoiding oxygen deficit when gas heater or oil heater is used in the room. (11) Never plug in or unplug the power plug directly to turn on or turn off the air conditioner. (12) Once the air conditioner is turned on, it can be turned off only after it has operated for 5min at least; otherwise, it will affect the oil return of compressor. (13) Do not allow children to operate this air conditioner. (14) Do not operate this air conditioner with wet hands. (15) The air conditioner can be cleaned only when it has been turned off and the power has been cut off; otherwise, it may cause electric shock or injury. (16) Never spray or flush water towards the air conditioner; otherwise, malfunction or electric shock may happen. (17) Do not expose the air conditioner to the moist or corrosive environment. (18) Under cooling mode, please don't set the room temperature too low; keep the temperature difference between indoor and outdoor within 5°C (41°F). (19) Do not repair the unit by yourself. Wrong maintenance may cause electric shock or fire hazard. Please contact Gree appointed service center for help. (20) Before installation, please check whether the power supply is complied with that specified on the nameplate and check the safety of the power supply. (21) Installation should be conducted by the dealer or qualified personnel. Please do not attempt to install the air conditioner by yourself. Improper installation may lead to water leakage, electric shock or fire hazard, etc. (22) Be sure to use special accessories and parts for installation to prevent water leakage, electric shock and fire hazard, etc. (23) The air conditioner must be grounded reliably for avoiding electric shock. Please do not connect the earthing wire to gas pipe, water pipe, lightning rod or telephone line. (24) Put through the power 8 hours in advance before operation. Do not cut off the power when the air conditioner stops operation for only about one night (protect the compressor). (25) If refrigerant leakage happens, please ventilate the room immediately. Multi Variable Air Conditioners Wall Mounted Type Indoor Unit 1
Multi Variable Air Conditioners Wall Mounted Type Indoor Unit (26) Volatile liquid, such as diluent or gasoline, will damage the appearance of air conditioner. Only soft dry cloth and wet cloth dipped with neutral detergent can be used to clean the outer case of air conditioner. (27) If there are any abnormal circumstances (such as burning smell, etc.), please turn off the unit and cut off the main power supply immediately, and then contact Gree appointed service center. If those abnormal circumstances still exit, the unit may be damaged and it may lead to electric shock or fire hazard. (28) Under the standby status, the air conditioner will consume a little power for ensuring reliability of complete air conditioner, maintaining normal communication and preheating refrigerant. When the unit won’t be used for a long time, cut off the power of the complete air conditioner. However, please preheat it when operating the unit next time. Any personal injury or property loss caused by improper installation, improper debug, and unnecessary repair or not following the instructions of this manual should not be the responsibility of Gree Electric Appliances, Inc. of Zhuhai. 2 Product Introduction 2.1 Outline of the Unit and Main Parts Fig. 2.1 NOTE The appearances will be different by the different models of air conditioners. No. Part Name No. Part Name ① Surface panel ④ Guide louver ② Filter ⑤ Drain pipe ③ Wiring cover — — 2.2 Rated Operating Condition Indoor Side Condition Outdoor Side Condition Item Dry Bulb Temp°C (°F) Wet Bulb Temp°C (°F) Dry Bulb Temp°C (°F) Wet Bulb Temp°C (°F) Rated Cooling 27(80.6) 19(66.2) 35(95) 24(75.2) Rated Heating 20(68.0) 15(59.0) 7(44.6) 6(42.8) Indoor Unit Working Temperature Range: 16°C(60.8°F) ~32°C(89.6°F). 2
3 Installation Instruction 3.1 Schematic Diagram of Installation Spaces (1) The unit shall be installed by the professional personnel according to this installation instruction to ensure proper use. (2) Please contact the local Gree appointed service center before installation. Any malfunctioncaused by the unit that is not installed by the Gree appointed service center would probably not be dealt with on time because of the inconvenience of the business contact. (3) It should be guided under the professional personnel when the air conditioner unit is moved to other place. (4) The appliance shall not be installed in the laundry. (5) The indoor unit should be installed at 2.5m(8-1/4feet) or higher above the floor. 3.2 Requirements for Communication Line If the unit is installed in the place with strong electromagnetic interference, shielded wire must be applied on the communication wire between indoor unit and wired controller. Twisted pair line with shielding function must be applied on the communication wire between indoor unit and indoor unit (outdoor unit). 3.2.1 Select Communication Line for Indoor Unit and Wired Controller Multi Variable Air Conditioners Wall Mounted Type Indoor Unit Unit: cm(feet) Fig. 3.1 Fig. 3.2.1 3
Multi Variable Air Conditioners Wall Mounted Type Indoor Unit Total length of communication Material type line between indoor unit and wired controller L Light/Ordinary polyvinyl chloride L≤250m (L≤820-1/5feet) sheathed cord. 3.2.2 Select Communication Line for Indoor Unit and Indoor Unit (Outdoor Unit) Total Length L of Communication Cable between Indoor Unit and Material Type Indoor (Outdoor) Unit Light/Ordinary polyvinyl chloride L≤1000m (L≤3280-5/6feet) ≥2×AWG18 sheathed cord. 3.3 Electric Installation Model Power Supply MCA(A) MOP(A) GMV-ND06G/B4B-T(U) GMV-ND07G/B4B-T(U) GMV-ND09G/B4B-T(U) GMV-ND12G/B4B-T(U) GMV-ND14G/B4B-T(U) GMV-ND18G/B4B-T(U) GMV-ND24G/B4B-T(U) GMV-ND30G/B4B-T(U) GMV-ND36G/B4B-T(U) Wire size Remarks (1) Total length of communication line can't exceed 250m (820-1/5feet). (2) The cord shall be Circular cord (the cores shall be 2×AWG18 ~2×AWG16 twisted together). (3) If unit is installed in places with intense magnetic field or strong interference, it is necessary to use shielded wire. Fig. 3.2.2 Wire size Remarks (1) If the wire diameter is enlarged to 2×AWG16, the total communication line length can reach 1500 m (4921-1/4feet). (2) The cord shall be Circular cord (the cores shall be twisted together). (3) If unit is installed in places with intense magnetic field or strong interference, it is necessary to use shielded wire. 208/230V-1ph-60Hz 1 15 4
Multi Variable Air Conditioners Wall Mounted Type Indoor Unit
(1) Use copper wire only as unit’s power cord. Operating temperature should be within its rated value.
(2) If the power cord is more than 15m(590-1/2 inch) long, please increase properly the sectional area of power cord to
avoid overload, which may cause accident.
(3) Above selection requirements: Power cord size is based on BV single-core wire (2~4pc) at 40°C (104°F) ambient
temperature when laying across plastic pipe. Air switch is D type and used at 40°C (104°F). If actual installation
condition varies, please lower the capacity appropriately according to the specifications of power cord and air switch
provided by manufacturer.
(4) Install cut-off device near the unit. The minimum distance between each stage of cut-off device should be 3mm (1/8
inch) (The same for both indoor unit and outdoor unit).
(5) If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly qualified
person in order to avoid a hazard.
4 Installation Instructions
4.1 Installation of Indoor Unit
Fig. 4.1
Below are dimensions of W, H, D for different models:
Item
Model
W
H
D
GMV-ND06G/B4B-T(U) GMV-ND07G/B4B-T(U)
GMV-ND09G/B4B-T(U) GMV-ND12G/B4B-T(U)
845(33-1/4)
289(11-3/8)
209(8-1/4)
GMV-ND14G/B4B-T(U)
970(38-3/16)
300(11-13/16)
224(8-13/16)
GMV-ND18G/B4B-T(U) GMV-ND24G/B4B-T(U)
1078(42-7/16)
325(12-13/16)
246(9-11/16)
GMV-ND30G/B4B-T(U) GMV-ND36G/B4B-T(U)
1350 (53-1/8)
326 (12-13/16)
258 (10-3/16)
5
Unit: mm(inch) Multi Variable Air Conditioners Wall Mounted Type Indoor Unit 4.2 The installation of the Rear Panel (1) Find the horizontal position by the seton method; since the drainage pipe is on the left side, it is necessary to adjust the rear panel to make its left side a little bit lower. (2) Fix the rear panel on the wall by bolts. (3) After installing the rear panel, pull it by hands to check if it is secured enough. The hang panel should support the weight of an adult (60kg), and the weight shared by every bolt should be fairly even. (4) The diameter showed in Fig. 4.2 is 55mm(2-3/16inch) or 70mm(2-3/4inch). 4.3 Preparation of the Piping Hole (1) Make the piping hole (55mm(2-3/16inch) or 70mm(2-3/4inch)) in the wall at a slight downward slant to the outdoor side. The center of the hole should be determined referring to Fig. 4.2. (2) Insert the piping-hole sleeve into the hole to prevent the connected piping and wiring from being damaged when passing through the hole. 4.4 Installation of the Drainage Pipe (1) For proper draining, the drain hose should be placed at a downward sloping. (2) Do not wrench or bend the drain hose or flood its end by water. (3) Wrap the drain hose with heat resistant material. (4) It is not allowed to connect the condensate drain pipe into waste pipe or other pipelines which are likely to produce corrosive or peculiar smell to prevent the smell from entering indoors or corrupt the unit. (5) It is not allowed to connect the condensate drain pipe into rain pipe to prevent rain water from pouring in and cause property loss or personal injury. (6) Condensate drain pipe should be connected into special drain system for air conditioner. Unit: mm(inch) Fig. 4.2 6
4.5 Installation the Connection Pipes Connect the ends of the connection pipe with two leading pipes, and then tighten the joint nuts tightly. Connect the connect pipe with the two relative leading pipe, tie the nut on tie –in of the connect pipe tightly. (1) Be careful in bending the connection pipes, or you would damage the pipes. (2) If the tightening torque for the flare nut is too great, leakage would happen. 5 Wiring Work Before obtaining access to terminals, all supply circuits must be disconnected. (1) Units must be earthed securely, or it may cause electric shock. (2) Please carefully read the wiring diagram before carry out the wiring work, incorrect wiring could cause malfunction or even damage the unit. (3) The unit should be powered by independent circuit and specific socket. (4) The wiring should be in accordance with related regulations in order to ensure the units reliable running. (5) Install circuit breaker for branch circuit according to related regulations and electrical standards. (6) Keep cable away from refrigerant pipings, compressor and fan motor. (7) The communication wires should be separated from power cord and connection wire between indoor unit and outdoor unit. (8) Adjust the static pressure via wired controller according to site circumstance. 5.1 Connect Cables and Terminals of Wiring Board Connection of Wire and Patch Board Terminal. (1) The connection of wire (as shown in Fig. 5.1.1). 1) Strip about 25mm(1inch) insulation of the wire end by stripping and cutting tool. 2) Remove the wiring screws on the terminal board. 3) Shape the tail of wire into ring by needle nose plier, and keep the gauge of ring in accordance with screw. 4) Use the screwdriver for tightening the terminal. (2) The connection of stranded wire (as shown in Fig. 5.1.2). 1) Strip about 10mm(3/8inch) insulation of the end of stranded wire by stripping and cutting Multi Variable Air Conditioners Wall Mounted Type Indoor Unit Fig. 4.4 7
Multi Variable Air Conditioners Wall Mounted Type Indoor Unit
tool.
2) Loosen the wiring screws on terminal board.
3) Insert the wire into the ring tongue terminal and tighten by crimping tool.
4) Use the screwdriver for tightening the terminal.
Fig. 5.1.1 Fig. 5.1.2
5.2 Power Cord Connection
NOTE
All indoor units must be unified of power supply so that they can be powered ON/OFF at the same
time.
Fig. 5.2
For units with single-phase power supply.
(1) Detach the electric box lid.
(2) Let the power cord pass through the wiring through-holes.
(3) Connect the power cord to the L1, L2 terminals and the grounding screw.
(4) Fix the power card with wiring clamp.
(5) The wire diameter of power cord can’t be less than 18AWG.
5.3 Connection of Communication Line of IDU and ODU
(1) Open the cover of electric box of indoor unit.
(2) Lead the communication line across the rubber ring.
(3) Connect the communication line to terminal D1 and D2 on the 4-digit wiring board of indoor
unit, as shown in Fig. 5.3.1.
8
Unit: mm(inch) (4) Secure the communication line with the wire clamp on the electric box.
(5) In order to ensure the reliability of communication between IDU and ODU and the
communication among each IDU, add a matched resistance (supplied in a package before
ex-factory) on the wiring board of the last indoor unit in a series connection. The matched
resistance should be connected in parallel between terminal screw D1 and D2, as shown in
Fig. 5.3.2.
5.4 Connection of Communication Line of Wired Controller
(1) Open the cover of electric box of indoor unit.
(2) Lead the communication line of wired controller across the rubber ring.
(3) Connect the wire of wired controller with the terminal of indoor unit.
(4) Fix the communication wire with wire clip on the electric box.
5.5 Illuminate for Connection of Wired Controller and Indoor Units Network
(1) Communication wire of indoor unit and outdoor unit (or indoor unit) is connected to D1, D2.
(2) Connect the wire of wired controller with the terminal of indoor unit.
(3) One indoor unit can connect two wired controllers that must be set as master one and slave
one.
(4) One wired controller can control 16 indoor units in maximum at the same time.
(1) The type of indoor units must be the same if they are controlled by the same wired controller.
(2) When the indoor unit is controlled by two wired controllers, the addresses of the two wired controllers should be
different through address setting. Address 1 is for main controller; Address 2 is for slave controller. Detailed setting
please refer to the instruction manual of wired controller.
5.6 Installation of the Indoor Unit
(1) When routing the piping and wiring from the left or right side of the indoor unit, it is
necessary to cut off the tailings of the pipe left on the holder of the unit (Shown in Fig. 5.6).
Multi Variable Air Conditioners Wall Mounted Type Indoor Unit
Fig. 5.3.1
Fig. 5.3.2
9 Multi Variable Air Conditioners Wall Mounted Type Indoor Unit 1) Cut down tailings 1 when only the power cord is led. 2) Cut down tailings 1, 2 (or 1, 2, 3) when the connection cord and wire are led. 3) The piping types ①,②,③,④ are recommended. (2) Let the tubing and cord pass though the piping hole after tied up (refer to Fig. 5.6 (d)). (3) Hang the claw behind the indoor unit on the pothook on the wall panel, and move the unit left and right to check if the body is firm. (4) Guarantee that the installation height of the indoor unit should be 2.5m(8-1/4feet) above the floor. 5.7 Connection of External Water Pump The external water pump applicable model: GMV-ND06G/B4B-T(U), GMV-ND07G/B4B-T(U), GMV-ND09G/B4B-T(U), GMV-ND12G/B4B-T(U), GMV-ND14G/B4B-T(U), GMV-ND18G/B4B-T(U), GMV-ND24G/B4B-T(U). The external water pump is purchased by the user, and the water pump is selected according to the requirements. The installation must be carried out by a professional according to the local laws and regulations and the pump manual. Main board terminal CN8: Provide power for the external water pump; Power specification: 220-240V~50Hz, 208-230V~60Hz; Power of water pump ≤30W; when there may be condensed water according to the operating status of the indoor unit, the power will be turned on, and when there is no condensed water, the power will be turned off. Main board terminal CN35: It’s used to detect the water overflow error signal. When the terminal CN35 is continuously disconnected for a certain period of time, the error code L3 of water overflow error will be displayed on the indoor unit and the unit stops operation; when the terminal CN35 is continuously connected for a period of time, the water overflow error will be eliminated. When the user doesn’t need to use this function, the terminal CN35 shall be connected according to the short circuit connection at the time of ex-factory. Connection of external water pump and indoor unit (1) Remove the panel. (2) Remove the electric box cover. Fig. 5.6 10
(3) Connect the power cord of external water pump to the positions L and N of terminal CN8 of the main board; connect the alarm wire to the positions 1 and 2 of terminal CN35 (refer to Fig. 5.7). (4) Ake out the wiring clip from the package of accessories. Remove the original wiring clip from the electric box and secure the power cord and alerter wire with the new clip. Multi Variable Air Conditioners Wall Mounted Type Indoor Unit Fig. 5.7 11
Multi Variable Air Conditioners Wall Mounted Type Indoor Unit 6 The Best Usage Method Do not pour water to unit or clean it by water, otherwise a malfunction or electric shock may happen. (1) Adjust to proper indoor temperature; too cool of indoor temperature is not good for health. (2) Adjust the set temperature properly in proper to prevent electricity wasting. It is better tocontrol the difference of the indoor and outdoor temperatures within 5°C (41°F). (3) The better effect will be maintained by adjusting the guide louver downward for heating and horizontal for cooling. (4) When the air conditioner is running, don’t open windows or doors for long time, otherwise the efficiency of unit will be lowered. (5) Prevent the cooled air blowing to body directly for long time and making indoor temperature too low, for it is bad for health. (6) Do not mangle the power cord and the communication cord. The damaged power cord and communication cord can only be replaced by the specified ones. (7) This air conditioner cannot be used for drying clothes and refrigerating food, etc. 7 Maintenance Method (1) Do turn off the unit and cut off the main power supply when cleaning the air conditioner to avoid electric shock or injury. (2) Stand at solid table when cleaning the unit. (3) Do not clean the unit with hot water whose temperature is higher than 45°C (113°F) to prevent fade or deformation. (4) Do not dry the filters by fire, or it may catch fire or become deformed. (5) Volatile liquid like thinner or gasoline would damage the appearance of the air conditioner (Only soft dry cloth and wet cloth moistened with neutral detergent could be used to clean the surface panel of the air conditioner). (6) Please contact after-sales service staff if there is abnormal situation. 7.1 Cleaning Panel Do take down it before cleaning. (1) Pull along the direction of arrows to take down the panel. (2) Clean the panel. Clean it with a soft-hair brush, water and neutral cleaning fluid, and then dry it. Fig. 5.8 12
(3) Install the panel. As shown in Fig. 7.1.1, install the stands of both ends of the panel into the slot and put the middle rotating shaft into the groove, then place the panel and clasp back along the arrow direction. 7.2 Cleaning the Air Filters Clean it once every 3 months; when the usage environment has lots of dust, it should be cleaned more frequently. (1) Take down the air filter. As shown in Fig. 7.2.1, open the surface panel by holding the both ends of groove along the arrow direction, and then take the air filter out downward. (2) Clean the filter. Use cleaner or water to wash the filter; if the filter is too dirty (like oil stain on it), warm water (lower than 45°C(113°F)) with neutral detergent can be used, then dry it in the shade. (1) Do not clean the filter by hot water higher than 45°C (113°F) for preventing fade or deformation. (2) Do not burn it on fire or the filter would catches fire or deformation. (3) Do not clean the filter by hot water higher than 45°C (113°F) for preventing fade or deformation. Do not burn it on fire or the filter would catches fire or deformation. (4) Install air filter. Install the air filter properly along the arrow direction, making the side marked “Front” facing yourself and then place the panel back. 7.3 Check before the Usage Season (1) Check if there is blockage in the inlet or outlet vent of the air conditioner. (2) Check if the earth wire is earthed reliably. (3) Check if the batteries in the wireless remote controller have been replaced. (4) Check if the air filter has been installed properly. In order to start up the air conditioner smoothly after it has been turned off for a long time period, energize the unit 8 hours before turning it on. Multi Variable Air Conditioners Wall Mounted Type Indoor Unit Fig. 7.1.1 Fig. 7.2.1 13
Multi Variable Air Conditioners Wall Mounted Type Indoor Unit 7.4 Check after the Usage Season (1) Clean filter and body of air conditioner. (2) Cut off the main power supply of air conditioner. 8 Table of Error Codes for Indoor Unit Error Code Content Error Code Content Error Code Content L0 Indoor Unit Error L9 Quantity Of Group Control Indoor Units Setting Error d8 Water Temperature Sensor Error L1 Indoor Fan Protection LA Indoor Units Incompatibility Error d9 Jumper Cap Error L2 E-heater Protection LH Low Air Quality Warning dA Indoor Unit Network Address Error L3 Water Full Protection LC Outdoor-Indoor Incompatibility Error dH Wired Controller Circuit Board Error L4 Wired Controller Power Supply Error d1 Indoor Unit Circuit Board Error dC Capacity DIP Switch Setting Error L5 Anti-freezing Protection d3 Ambient Temperature Sensor Error dE Indoor Unit CO2 Sensor Error L7 No Master Indoor Unit Error d4 Inlet Pipe Temperature Sensor Error C0 Communication Error L8 Power Insufficiency Protection d6 Outlet Pipe Temperature Sensor Error AJ Filter Cleaning Reminding db Special Code: Project Debugging Code dL Outlet Air Temperature Sensor Error — — 9 Malfunction Analyzing Do not repair the air conditioner by yourself for the incorrect repair would lead to electric shock or fire. Please contact the service center and have the unit repaired by the specialized personnel. Check the following items before contacting the service center, as it could save your time and cost. Malfunction Phenomena Malfunction Analyzing The air conditioner could not start up just after turned off. Odor gave out when the unit just was turned on. Odors or cigarette smoke which has been absorbed in is discharged out. Slight bicker was heard when the unit was running. This is the sound of the running refrigerant. Mist came from the air outlet vent when cooling. Indoor air is cooled rapidly. Creak sound was heard when the unit was running or after it was turned off. The air conditioner failed to run. The cooling (heating) effect of the air conditioner was not good. The over load protection switch of the unit makes it run after 3 minutes delay. It is the sound emitted by the expansion of the panel and other parts because of the temperature change. Is the power supply cut off? Is the power supply connected? Is the circuit protector started aside? Is the voltage too high or too low? If TIMER had been set on the wireless remote controller? Is the temperature set properly? Is the inlet, outlet vent of the outdoor unit blocked? Is the air filter too dirty to cause blockage? Are windows and doors closed? Is the air speed too low? Is there other heat source in the room? 14
Malfunction Phenomena Malfunction Analyzing The wireless remote controller cannot work. 9.1 Service Center When the following phenomena appeared, please stop operating immediately, cut off the main power supply of the unit and then contact the service center of the air conditioner. (1) Harsh sound heard when running. (2) The fuse or protector opened frequently. (3) Substance or water pulled in the unit involuntarily. (4) Water leakage in room. (5) Power cord overheated. (6) Abnormal odor is given out when running. 9.2 After-sales Service When quality or other problems arise upon the purchased air conditioner, please contact the local service center. 10 Adjusting Method of the Air Direction 10.1 Adjusting Air Direction Up and Down (1) Controlling the guide louver motor by the wireless remote controller can make the guide louver swing up and down, or makes the guide louver stop at a certain angle to have air supplied. (2) Press the SWING button on the wireless remote controller to make the guide louver swing up and down; Repress again to stop the operation. 10.2 Adjusting Air Direction Left and Right Moving the vertical louver left and right can adjust the left and right direction of air outlet, or adjust the air outlet to reach every corner of the room by 3 different outlet directions to make the indoor temperature more even. Multi Variable Air Conditioners Wall Mounted Type Indoor Unit In the event that the battery is replaced but the wireless remote control still malfunctions, then open the back cover and press “ACL” button to make it normal. When the air conditioner is under abnormal interference or its functions are changed too frequently, then the wireless remote controller would works improperly. At this time, it is available to resume the normal operation through de-energizing and then energizing the wireless controller again. Is the controller within the receiving area? or is there blockage? Check if the voltages of batteries in the wireless remote controller are sufficient; Otherwise change the batteries. 15
GREE 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