manual_redline_EN_2021_12_C_H0360900

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Sayfa 1

H0360900_REVC - 2020/02

Installation and user manual - English
Electric heater
Translation of the original instructions in French

EN

More documents on:
www.zodiac.com

Sayfa 2

 WARNINGS

GENERAL WARNINGS

•	Failure to respect the warnings may cause serious damage to the pool equipment 
or cause serious injury, even death.
•	Only a person qualified in the technical fields concerned (electricity, hydraulics or 
refrigeration) is authorised to perform this procedure. The qualified technician 
working on the appliance must use/wear personal protective equipment (such 
as safety goggles and protective gloves, etc.) in order to reduce the risk of injury 
occurring when working on the appliance.  
•	Before handling the machine, ensure that it is switched off and isolated.
•	The appliance is intended to be used with pools for a specific purpose; it must not 
be used for any purpose other than that for which it was designed.
•	This appliance is not intended for use by children.
•	This appliance is not intended for use by individuals (including children, over 
the age of 8) lacking in experience or with impaired physical, sensory or mental 
capabilities, unless:
	 - they receive supervision and are instructed on how to use the appliance by a 

person responsible for their safety; and
	 - they understand the hazards involved.
•	Children must be supervised to ensure that they do not play with the appliance.
•	The appliance must be installed according to the manufacturer’s instructions and 
in compliance with local standards in force. The installer is responsible for installing 
the appliance and for compliance with national installation regulations. Under no 
circumstances may the manufacturer be held liable in the event of failure to comply 
with applicable local installation standards.
•	For any work other than the simple user maintenance described in this manual, the 
product should be referred to a qualified professional.
•	Incorrect installation and/or use may cause serious damage to property or serious 
injuries (possibly causing death). 
•	All equipment, even postage and packing paid, travels at the risks and perils of the 
recipient. The latter shall issue reserves in writing on the carrier's delivery slip if 
damage is detected, caused during transport (confirmation to be sent to the carrier 
within 48 hours by registered letter). In the event that an appliance containing 
refrigerant has been turned on its side, mention your reservations in writing to the 
carrier.
•	If the appliance suffers a malfunction, do not try to repair it yourself; instead contact 
a qualified technician.
•	Refer to the warranty conditions for details of the permitted water balance values 
for operating the appliance.
•	Deactivating, eliminating or by-passing any of the safety mechanisms integrated 
into the appliance shall automatically void the warranty, in addition to the use of 
spare parts manufactured by unauthorised third-party manufacturers.
•	Do not spray insecticide or any other chemical (flammable or non-flammable) in 
the direction of the appliance, as this may damage the body and cause a fire.
•	Do not touch the fan or moving parts and do not place a rod or your fingers in the 
vicinity of the moving parts during operation of the appliance. Moving parts can 
cause serious injury or even death.

EN

1

Sayfa 3

WARNINGS ASSOCIATED WITH ELECTRICAL APPLIANCES

•	The power supply to the appliance must be protected by a dedicated 30  mA 
residual current device, complying with the standards and regulations in force in 
the country in which it is installed.
•	Do not use any extension lead when connecting the appliance; connect the 
appliance directly to a suitable power supply.
•	Before carrying out any operations, check that:
	- The voltage indicated on the appliance information plate corresponds to the 

mains voltage. 
	- The power grid must be adapted to the power requirements of the appliance, and 

is grounded. 
	- The plug (where applicable) is suitable for the socket.
•	In the event of abnormal operation or the release of odours from the appliance, 
turn it off immediately, unplug it from its power supply and contact a professional.
•	Before servicing or performing maintenance on the appliance, check that it is 
powered off and completely disconnected from the power supply.
•	Do not disconnect and reconnect the appliance to the power supply when in 
operation.
•	Do not pull on the power cord to disconnect it from the power supply.
•	If the power cord is damaged, it must be replaced by the manufacturer, an 
authorised representative or a repair facility only.
•	Do not perform maintenance or servicing operations on the appliance with wet 
hands or if the appliance is wet.
•	Before connecting the appliance to the power supply, check that the connection 
unit or socket to which the appliance will be connected is in good condition and 
shows no signs of damage or rust.
•	For any component or sub-assembly containing a battery: do not recharge or 
dismantle the battery, or throw it into a fire. Do not expose it to high temperatures 
or direct sunlight.
•	In stormy weather, unplug the appliance to prevent it from suffering lightning 
damage.
•	Do not immerse the appliance in water (with the exception of cleaners) or mud.

Recycling

This symbol means that your appliance must not be thrown into a normal bin. It will be 
selectively collected for the purpose of reuse, recycling or transformation. If it contains any 
substances that may be harmful to the environment, these will be eliminated or neutralised.
Contact your retailer for recycling information.

2

Sayfa 4

•	 Before handling the appliance, it is essential that you read this installation and user manual, 
as well as the "warnings and warranty" booklet delivered with the appliance. Failure to do so 
may result in material damage or serious or fatal injury and will void the warranty.
•	 Keep these instructions for future reference for operation and maintenance works.
•	 The distribution or modification of this document in any way is prohibited, without prior 
authorisation from Zodiac®.
•	 Zodiac® is constantly developing its products to improve their quality. The information 
contained herein may therefore be modified without notice. 

CONTENTS

❶ SPECIFICATIONS	
4

1.1 I  Description	
4

1.2 I  Technical specifications	
4

1.3 I  Dimensions and marking	
5

❷ INSTALLATION	
6

2.1 I  Selecting the location	
6

2.2 I  Hydraulic connections	
6

2.3 I  Electrical connections	
7

❸ USE	
8

3.1 I  Presentation of the regulation system	
8

3.2 I  Starting the appliance	
8

3.3 I  Checks to be carried out after operating for a few moments	
8

❹ MAINTENANCE	
9

4.1 I  Winterising	
9

4.2 I  Maintenance instructions	
9

❺ TROUBLESHOOTING	
9

5.1 I  Appliance behaviour	
9

5.2 I  Wiring diagram	
10

Tip: to make it easier to contact your retailer
•	 Write down your retailer's contact details to help you find them more easily and fill in the 
"product" information on the back of the manual; your retailer will ask you for this information.

EN

3

Sayfa 5

❶ Specifications

 
1.1 I  Description

A
Red Line

B
Ø63 connector (x2)

C
Ø50 connector (x2)

D
Joint (x2)

 
1.2 I  Technical specifications

Red Line
Unit
3
6
9
12

Power*
kW
3
6
9
12

Power supply
230V single-
phase
400V three-
phase

* with manufacturer tolerance ± 5%
•	 Protection index: IP 45

•	 Operating range: water temperature 2°C to 40°C

4

Sayfa 6

 
1.3 I  Dimensions and marking

Red Line
3
6
9
12

Weight
kg
3,5
3,5
4
4

A
mm
538
538
638
638
B
mm
452
452
552
552

Regulator

Flow switch

Gland

Heater body

½ union PVC connector 
Ø63/50

EN

Overheat control

Power contactor

Supply terminal block

Resistor

Screw thimble + 
regulation sensor

Screw thimble + safety 
thermostat sensor

5

Sayfa 7

❷ Installation

 
2.1 I  Selecting the location

•	 The appliance must be installed in a dry ventilated plant room with no pool maintenance 
products stored nearby.
•	 90° elbow fittings must not be installed directly at the heater inlet and outlet; leave at least 
25 cm of straight pipe to prevent chatter of the flow switch armature.

• The appliance must be positioned horizontally or vertically and held by piping supported by brackets on 
either side of the heater,
•	 If the heater is installed in a vertical position, the direction of flow must occur upwards, 
•	 Leave a free space around the appliance to facilitate its installation and maintenance,
•	 Preferably, the heater should be installed at the low point so that it is always full of water,
•	 The water treatment system must be installed at the low point after the heater to prevent chlorine from 
flowing back into the heater.

•	 Comply with the direction of installation. If this is not complied with 
(see diagram opposite), the flow switch will not be activated. 

 
2.2 I  Hydraulic connections

•	 An arrow on the heater body indicates the hydraulic connection direction to be implemented.

25 cm
25 cm

•	 The connection can be made using a PVC pressure pipe: 
	- directly if the flow rate is less than 30m³/h,
	- via a by-pass if the flow rate is greater than 30m³/h,
	- on the pool's filtration circuit, after the filter 
 and before the water treatment system 
.
•	 Check the correct clamping of the hydraulic connectors and that there are no leaks.

We recommend assembly with a by-pass since this facilitates appliance maintenance.

Red Line
Hydraulic circuit pressure
Connectors
Minimum water 

Maximum 
water flow
Test
Service

3-6-9-12
4 bar
2 bar
Ø63 and Ø50
5 m³/h
30 m³/h

6

V1-V2-V3: by-pass 
valves

: Red Line
: Pump
: Filter
: Water treatment

flow

Sayfa 8

 
2.3 I  Electrical connections

2.3.1 Voltage and protection

•	 The power supply to the heater must be provided through a protection and circuit breaking device (not 
supplied) complying with the standards and regulations in force in the country where it is installed,
•	 The electrical connection lines must be fixed,
•	 Use the gland to pass the power cord into the appliance.

Electrical protection: via a dedicated 30 mA residual-current circuit breaker (circuit breaker or switch)
Acceptable variation in voltage: ± 10% (during operation)

2.3.2 Connections

•	 Incorrectly tightened terminals may cause the terminal unit to heat up and invalidate the 
warranty.
•	 The appliance must be connected to an earth socket.
•	 Risk of electrical shock inside the appliance. 
•	 Only a qualified and experienced technician is authorised to carry out cabling in the appliance.
•	 If the power cord is damaged, it must be replaced by a qualified technician.

•	 The power cord must be insulated against any cutting or hot elements that may damage or crush it, 
•	 Check that the power cord is firmly attached to the connection terminal board.

12 kW Red Line units are wired via three-phase systems only.
3, 6 and 9 kW Red Line units are pre-wired for supply via a single-phase system when leaving the 
factory. 
To switch to a three-phase supply: 
-	
Detach the label from the terminal block, 
-	
Remove the 2 bridging straps ( 
 ),
-	
Reattach the label after pivoting it by 180° from its original position.

Single-phase
: Heater terminal block
Three-phase

: Bridging straps

: Power cord

: 30mA residual-current 
circuit breaker

: Phase

: Neutral

: Earth
2.3.3 Cable sizes

•	 Power cord size: for cables of a maximum length of 20 metres (calculation basis: 5A/mm²), this must be 
checked and adapted depending on the installation conditions.

Power 
consumed
Cable size
Protection 

Red Line
Voltage
Bridging 

straps
Terminals

A
mm²
A

3
230V/1N/50Hz
R-S-T
               C-N
14 
3x4
3G4
16

400V/3N/50Hz
/
5
5x2.5
5G2.5
10

6
230V/1N/50Hz
R-S-T
               C-N
27
3x6
3G6
32
400V/3N/50Hz
/
9
5x2.5
5G2.5
16

9
230V/1N/50Hz
R-S-T
             C-N
40
3x10
3G10
50
400V/3N/50Hz
/
13
5x4
5G4
16
12
400V/3N/50Hz
/
18
5x4
5G4
20

EN

rating

7

Sayfa 9

❸ Use

 
3.1 I  Presentation of the regulation system

Press and release
Press and hold

Keys

To confirm a value
"On/off"

To browse and adjust values
To quickly scroll through the values

Description
Steady
Flashing
Off

Appliance 
switched 
on

on
"On/Off" 
indicator light

 /
Inactive

Indicator lights

On hold

Water flow rate too low (less than 5 m³/h)
Filtration stopped
Set point temperature greater than pool water 
temperature (the indicator flashes for 15 
seconds then is lit steadily).

Appliance 
currently 
heating

reg
Heating indicator 
lights

 
3.2 I  Starting the appliance

•	 Open all valves (V1, V2 and V3) (see §"2.2 I  Hydraulic connections"),
•	 Start the filter pump,
•	 Gradually close the by-pass valve (V1),
•	 Check that the water flow rate is between 5 and 30 m³/h. If the flow rate exceeds 30 m³/h, adjust valve 1 
(V1) to reach 30 m³/h maximum,
•	 Check that there is no air in the circuit,
•	 Connect the regulation system to the power supply and turn it on,
•	 Adjust the set point temperature: to display and change the set point value, press 
 or 
.

•	 The temperature is regulated by degrees.
•	 The set point can be adjusted to between 2°C and 40°C. 
•	 To check that the filtration time is long enough:
	- During the temperature rise phase, water circulation must be continuous (24 hours/day),
	- To maintain the temperature throughout the season, run "automatic" circulation for at least 

12 hours/day (the longer this time, the more the operating range of the appliance will suffice 
for heating).

 
3.3 I  Checks to be carried out after operating for a few moments

The heater must stop operating when:
•	 The temperature set point is lowered,
•	 The regulation system stops,
•	 Filtration stops. 

8

Pool at 
the desired
temperature

Sayfa 10

❹ Maintenance

 
4.1 I  Winterising

•	 Winter storage is essential due to the risk of the heater body freezing and breaking. This is not 
covered by the warranty.
	
•	 Switch off the regulation system, 
•	 Stop water circulation, 
•	 Drain the heater: 
	- Close valves 2 and 3 (see § "2.2 I  Hydraulic connections") where present,
	- Unscrew the connectors to drain the heater,
	- When the heater is empty, re-tighten the connectors a little, without creating a seal. 

 
4.2 I  Maintenance instructions

It is recommended that the appliance undergo general upkeep on a yearly basis to ensure proper 
operation, maintain performance levels and prevent certain potential failures.
These operations are carried out at the user's expense, by a qualified technician.

•	 Check the electrical mechanism,
•	 Check the ground connection,
•	 Check the tightening and connections of the electrical wires,
•	 Check the cleanliness of the switch box.

❺ Troubleshooting

•	 If a problem occurs, before you contact your retailer, please carry out these few simple checks 
using the following tables. 
•	 If the problem continues, contact your retailer.

 
5.1 I  Appliance behaviour

Message
Possible causes
Solutions
The display does not 

•	 The appliance is no longer 
supplied with electricity

•	 Replace the regulator protection fuse

work

•	 Appliance powered down and locked; 
reconnect or carry out a standard replacement 
for the sensor (the "E0" fault is acknowledged 
automatically)
The pool water is 
hotter than requested

•	 The regulation sensor is out 
of service or disconnected

The appliance displays 

"E0" flashing

•	 The regulator is not operating 
correctly

•	 Check that the power contactor is not 
damaged

•	 The 
fail-safe 
overheating 
thermostat (TS) has been 
triggered 

•	 Reset the thermostat: 
	- Remove the cap on the side of the 

The "reg" indicator 

appliance,
	- Press the centre button.
•	 Non-compliant 
appliance 
installation

is flashing but the 

appliance is not 

heating

•	 Contact a qualified technician

If the problem continues, contact your retailer.

EN

9

Sayfa 11

 
5.2 I  Wiring diagram

5.2.1 Red Line 3-6-9 kW single-phase current and three-phase current 

C-R
230V-1N-50Hz power supply
N-R-S-T
400V-3N-50Hz power supply
TH
Regulating thermostat with digital display
F1
3.15 A-T protection fuse
CD
Flow switch
So
Pool water regulation sensor (PTC)
R
Resistor (capacity engraved on the metal cup)
KM1
Power contactor
TS
Overheat control (triggered at 63 °C, manual reset)
GN-GG
Black cladding or grey cladding
CN
Black cable (coloured electrical bonding)
V-j
Green-yellow
B
Blue
M
Brown
Bl
White
N
Black
Ro
Red
Vi
Violet

 
Earth

10

Sayfa 12

5.2.2 Red Line 12 kW three-phase current 

C-R
230V-1N-50Hz power supply
N-R-S-T
400V-3N-50Hz power supply
TH
Regulating thermostat with digital display
F1
3.15 A-T protection fuse
CD
Flow switch
So
Pool water regulation sensor (PTC)
R
Resistor (capacity engraved on the metal cup)
KM1
Power contactor
TS
Overheat control (triggered at 63 °C, manual reset)
GN-GG
Black cladding or grey cladding
CN
Black cable (coloured electrical bonding)
V-j
Green-yellow
B
Blue
M
Brown
Bl
White
N
Black
Ro
Red
Vi
Violet

 
Earth

EN

11

Sayfa 13

Votre revendeur 
Your retailer 

Modèle appareil 
Appliance model

Numéro de série 
Serial number

Pour plus d’informations, enregistrement produit et support client : 

For more information, product registration and customer support:  

www.zodiac.com

ZODIAC® is a registered trademark of Zodiac International, S.A.S.U., used under license.

Zodiac Pool Care Europe - Bd de la Romanerie - BP 90023 - 49180 St Barthélémy d’Anjou cedex - S.A.S.U. au capital de 1 267 140 € / SIREN 395 068 679 / RCS PARIS