Hayward HeatRelax Quick guide

SWIMMING POOL HEAT PUMP UNIT
Installation & Instruction Manual
ISHPR_RevA
HeatRelax
HeatRelax

CONTENTS
Read carefully and keep for later consultation.
This document must be given to the owner of the swimming pool, who must keep it in a safe place.
1. GENERAL INSTRUCTIONS - SAFETY 1
2. TECHNICAL SPECIFICATIONS 4
2.1 Technical data for the swimming pool heat pump unit 4
2.2 Operating range 5
2.3 Dimensions 6
3. INSTALLATION AND CONNECTION 7
3.1 Functional Diagram 7
3.2 Heat pump 7
3.3 Hydraulic connection 9
3.4 Electrical Connection 10
3.5 Initial start-up 11
4. USER INTERFACE 13
4.1 Overview 13
4.2 Settings and viewing the set point 14
4.3 Locking and unlocking the touch screen 14
4.4 Operating mode selection 15
4.5 Water flow setting 16
5. MAINTENANCE AND WINTERISATION 17
5.1 Maintenance 17
5.2 Winterising 17
6. APPENDICES 18
6.1 Wiring diagrams 18
6.2 Heating priority connections Single-Phase Pump 21
6.3 Exploded view and spare parts 22
6.4 Troubleshooting guide 30
6.5 Warranty 31
6.6 End of life of the device 31

1
1. GENERAL INSTRUCTIONS - SAFETY
Thank you for purchasing this swimming pool heat pump unit HeatRelaxTM by
Hayward®. This product has been designed in compliance with strict manufacturing
standards to meet the required quality levels. This manual includes all the
information you need for installing, troubleshooting and maintenance. Read
this manual carefully before opening the unit or performing any maintenance
operations. The manufacturer of this product will in no way be held liable for
any injuries to a user or damage to the unit resulting from incorrect installation,
troubleshooting and repairs or poor maintenance. It is essential to follow the
instructions given in this manual at all times.
After having read this manual, keep it for future usage.
Authorised personnel
• The installation, electrical connections, maintenance and repairs of the device
must be carried out by an accredited professional in accordance with the
regulatory texts and the rules of the art in effect in the country where the
device is installed (see § 3.4).
For any intervention on the cooling circuit, the professional must hold a
certificate of competence in handling refrigerants.
For France:
- Low-voltage electrical installation according to NF-C 15-100.
- Legislation on the handling of refrigerants: Decree 2007/737 and its
implementation orders.
Installation and maintenance conditions
• Do not attempt to install this device by yourself.
• This product was designed exclusively for domestic use and installation
outdoors. The air that escapes from the product must be able to flow freely
and must not be used for other purposes such as heating or cooling a room or
building.
• This swimming pool heat pump unit heats swimming pool water and maintains
a constant temperature; it should not be used for any other purpose.
• Check the power cable. If the power cable is damaged, it has to be replaced
by the manufacturer, its after-sales service or by a qualified and authorised
person.
• Grounding connection of the device and its continuity are mandatory. The
ground wire has to be longer than the other wires in order to prevent the risks
of electric shock in the event the cable is pulled out. The electrical installation
must be equipped with a differential protection of 30 mA (see § 3.4).
• Failure to comply with these recommendations will invalidate the warranty.

2
Instructions for servicing - maintenance
Maintenance operations must be carried out once per year in order to guarantee
the longevity and the good working condition of the heat pump.
• Maintenance and the different operations must be carried out at the
recommended times and frequencies as specified in this manual.
• Only use genuine spare parts.
• Check the power cable. If the power cable is damaged, it has to be replaced
by the manufacturer, its after-sales service or by a qualified and authorised
person.
• Verify the grounding connection of the device and its continuity.
• Clean the coil with the help of a soft brush or jet of air or water (Warning,
never use a high pressure cleaner).
• Verify that the drains flow well.
• Verify the tightening of the hydraulic and electrical connections
• Verify the hydraulic sealing of the condenser.
• Have the leak-tightness of the cooling circuit to the leak detector checked by
an accredited professional.
Before any maintenance operation, the heating pump must be
disconnected from any electrical current source. The maintenance
operations must only be carried out by personnel that is qualified and
authorised to handle liquid refrigerants.
Instructions for winterising
• Put the heat pump in “OFF” mode.
• Cut the power supply to the heat pump.
• Empty the condenser with the help of the drain to avoid any risk of
deterioration. (high risk of freezing).
• Close the by-pass valve and unscrew the entry/exit connection unions.
• Eliminate the maximum amount of residual stagnant water from the condenser
with the help of an air gun.
• Close the water entry and exit areas of the heating pump to avoid introducing
foreign bodies.
• Cover the heating pump with a dedicated winterising case.
Any damage caused by poor winterising maintenance will lead to
cancellation of the warranty.
1. GENERAL INSTRUCTIONS - SAFETY (continued)

3
Conditions for use
This device can be used by children aged 8 years and over as well as by
persons who have reduced, physical, sensory or mental capacities, or who
lack experience or knowledge, if they are correctly monitored or if instructions
pertaining to the use of the device in complete safety have been given to them
and the risks incurred are understood.
Children must not play with the device.
Cleaning and maintenance by the user must not be carried out by children
without surveillance.
This product contains refrigerant gas R410A
This product contains greenhouse effect fluorinated gases covered by the Kyoto
protocol.
GWP Value(1) : 2088, Value based on the 4th GIEC report.
Any intervention on the cooling circuit must be carried out by an accredited
professional as mentioned hereinabove.
Periodic inspections for refrigerant leakage can be required as a function of
European or local legislation. Please contact your local distributor for additional
information.
• Warning, refrigerants can be odourless.
• Do not pierce or heat the pipes, risk of explosion and serious burns.
• Do not use a method for accelerating the defrosting or cleaning process other
than those recommended by the manufacturer.
• The device must be stored in a room that does not contain any source of
ignition operating on a permanent basis (for example, open flames, gas device
or electric radiator that is operating).
(1) Global warming potential
1. GENERAL INSTRUCTIONS - SAFETY (continued)

4
2. TECHNICAL SPECIFICATIONS
2.1 Technical data for the swimming pool heat pump unit
Model HeatRelax HPR06M HPR09M HPR12M HPR19M
Heat capacity (*) kW 4,10 6,30 8,30 12,95
Electrical power rating (*) kW 1,0 1,47 1,91 3,06
COP (*) _ 4,13 4,31 4,33 4,31
Operating current (*) A 4,6 6,61 8,65 13,06
Electrical connection V
Ph/Hz 230 V
1 / 50Hz 230 V 1 / 50Hz 230 V 1 / 50Hz 230 V 1 / 50Hz
Fuse rating aM A8 aM 10 aM 16 aM 20 aM
D-curve circuit breaker A8 D 10 D 16 D 20 D
Heat capacity (**) kW 5,7 9,2 12,1 18,9
COP (**) _ 5,1 5,9 5,6 5,7
Number of compressors _ 1 1 1 1
Type of compressor _ Rotating Rotating Rotating Rotating
Number of fans _ 1 1 1 1
Fan power W 90 120 120 150
Fan rotation speed RPM 850 850 850 850
Fan direction _ Horizontal Horizontal Horizontal Horizontal
Acoustic power (***) Lw dB(A) 66,9 68,8 69,1 68,8
Sound pressure level
(at 10 m) dB(A) 35,8 37,6 37,9 37,5
Hydraulic connection mm 50 50 50 50
Water flow rate (*) m3/h 1,8 2,8 3,6 5,3
Water pressure drop (max) kPa 0,3 2,0 1,8 4,0
Unit net dimensions (L/W/H) mm 746/570/305 956/602/375 956/602/375 1116/871/470
Unit net weight kg 37 51 54 83
(*) Value at +/- 5% in the following conditions: Outside temperature = 15°C / HR = 71%. Water inlet temperature 26°C.
Water outlet temperature 28°C.
(**) Value at +/-5% under the following conditions: Outside temperature 27°C / RH = 78%. Water inlet temperature 26°C.
(***) Measurements according to EN 12102: 2013 and EN ISO 3744: 2010.

5
2. TECHNICAL SPECIFICATIONS (continued)
2.2 Operating range
Use the heat pump within the following temperatures and humidity ranges to
ensure safe and efficient operation.
Heating mode Cooling mode
Outside temperature -2°C – +35°C +7°C – +43°C
Water temperature +12°C – +40°C +8°C – +40°C
Relative humidity < 80% < 80%
Set point setting range +8°C – +32°C +8°C – +32°C
If the temperature or humidity do not fall within these conditions, safety
devices may be triggered and the heat pump may no longer work.
A
M O D E
S E T
A
M O D E
S E T

6
2. TECHNICAL SPECIFICATIONS (continued)
2.3 Dimensions
Models: HPR06M / HPR09M / HPR12M / HPR19M
Unit : mm
Model HPR06M HPR09M HPR12M HPR19M
Mark
A570 602 602 871
B746 956 956 1116
C264 334 334 425
D305 375 375 470
E295 360 360 447
F395 545 545 790
G93 98 98 103
H270 350 350 400
Water outlet
diam. 50 mm
Water inlet
diam. 50 mm
HeatRelax
HeatRelax
B
A
F
E
C
D
G H

7
3. INSTALLATION AND CONNECTION
3.1 Functional Diagram
Note: The swimming pool heat pump unit is sold without any treatment or
filtration equipment. The components shown on the diagram are parts to
be supplied by the installation engineer.
3.2 Heat pump
Place the heat pump outdoors and away from any enclosed technical
space.
Choose a location that is preferably sunlit and sheltered from dominant
winds.
The device must be perfectly accessible for later installation and
maintenance work.
Placed under a shelter, the minimum required distances mentioned
below must be respected in order to avoid any risk of air recirculation
and a deficiency in the unit's overall performance.
HeatRelax
HeatRelax
Pool
Water outlet
Electrolyser cell
(or other treatment)
Filtration pump
Filter
Water inlet
valve
Water outlet
valve
By-pass
valve
500
300
700
700
2500
HeatRelax
HeatRelax
Air intake
Air outlet
Unit: mm

8
3. INSTALLATION AND CONNECTION (continued)
Do not position the device directly on the floor because this could
cause problems.
Favour positioning on the ground on anti-vibration studs.
A wall bracket must not be used in conditions that can transmit
vibrations.
Do not install the heat pump on a support that risks intensifying the
unit's vibrations.
Do not install the heat pump anywhere liable to amplify its noise level or
anywhere where its noise could disturb neighbours.
Do not use adhesives: the latter are not considered to be a reliable
means of fastening.
Preferably, install the heat pump on a flat and dissociated cement block.
Set up the unit on the supplied rubber bushing (fastenings and washers
supplied).
Fasten the device, in compliance with the tightening indicated to avoid
any risk of accident or damage to equipment and persons.
Another possibility: install the heat pump on rubber floor supports
using suitable fastenings (not supplied).
x 4
5-7 N.m
The maximum installation distance between the unit and the swimming
pool is 15 metres.
The total length of the piping to and from the unit is 30 metres.
Insulate both the above ground and buried hydraulic piping.
The heat pump must be installed at a minimum distance from the pool
in compliance with NF C 15-100 (3.5 m from the water for France) or in
compliance with installation standards applicable in other countries.
Do not install the heat pump close to a heat source.
For installation in snowy regions we recommend sheltering the machine
to avoid snow accumulating on the evaporator.

9
3. INSTALLATION AND CONNECTION (continued)
3.3 Hydraulic connection
The heat pump is supplied with two 50 mm diameter union connections. Use
PVC tubing for the 50 mm hydraulic line. Connect the heat pump water inlet to
the pipe from the filtration unit then connect the heat pump water outlet to the
water pipe going to the pool (see diagram below).
Install a by-pass valve between the heat pump inlet and outlet.
from the filter 50 mm H2O INLET
to the pool 50 mm H2O OUTLET
If an automatic distributor or an electrolyser is used, it should be
installed imperatively after the heat pump with the goal of protecting the
titanium condenser against an elevated concentration of chemicals.
Be sure to install the by-pass valve and the supplied union connections
at the water inlet and outlet level in order to simplify purging during
the winter period and to facilitate access when disassembling for
maintenance.

10
Check that the available electrical power supply and the network
frequency correspond to the required operating current, taking into
account the appliance’s specific location and the current needed to
power any other appliance connected to the same circuit.
HPR06M 230 V+/- 10 % 50 Hz 1 Phase
HPR09M 230 V+/- 10 % 50 Hz 1 Phase
HPR12M 230 V+/- 10 % 50 Hz 1 Phase
HPR19M 230 V+/- 10 % 50 Hz 1 Phase
See the corresponding wiring diagram in the appendix.
The connection box is located on the right side of the unit. Three of the
connections are for the power supply and two are for the filtration pump
control (Servo control, OUT2).
3. INSTALLATION AND CONNECTION (continued)
3.4 Electrical Connection
FNF C15-100 GB BS7671:1992
DDIN VDE 0100-702 EW EVHS-HD 384-7-702
AÖVE 8001-4-702 HMSZ 2364-702/1994/MSZ 10-553 1/1990
EUNE 20460-7-702 1993,
RECBT ITC-BT-31 2002
MMSA HD 384-7-702.S2
IRL Wiring Rules + IS HD 384-7-702 PL PN-IEC 60364-7-702:1999
ICEI 64-8/7 CZ CSN 33 2000 7-702
LUX 384-7.702 S2 SK STN 33 2000-7-702
NL NEN 1010-7-702 SLO SIST HD 384-7-702.S2
P RSIUEE TR TS IEC 60364-7-702
The electrical installation and wiring of this equipment must comply
with local installation standards.
Dry contact 7A max
potential free.
Priority heating function
L N 1 2
= = = =
Power supply
230V/ 50Hz
OUT2

11
3.5 Initial start-up
Start-up procedure – once installed, perform the following steps:
1) Turn the fan by hand to check that it turns freely, and that the blades are
properly attached to the motor shaft.
2) Check that the unit is correctly connected to the main power supply (see
wiring diagram in the appendix).
3) Turn on the filtration pump.
4) Check that all the water valves are open, and that the water flows towards
the unit before switching on the heating mode.
5) Check that the condensate drainage hose is attached correctly and does
not cause an obstruction.
6) Turn on the unit’s power supply, then press the On/Off button on the
control panel.
3. INSTALLATION AND CONNECTION (continued)
Models HPR06M HPR09M HPR12M HPR19M
Power supply V/Ph/Hz
230 V
1/50 Hz
230 V
1/50 Hz
230 V
1/50 Hz
230 V
1/50 Hz
Fuse rating aM A8 aM 10 aM 16 aM 20 aM
D-curve circuit breaker A8 D 10 D 16 D 20 D
Cable section mm23G 1.5 3G 2.5 3G 2.5 3G 4
Never use an electrical plug for the power supply.
The electrical power supply must have, in a suitable manner, an
omnipolar protection device of the D-curve circuit breaker type as well
as a 30mA protection differential circuit breaker (see following table).
Use an RO 2V/R 2V or equivalent power cord.
The cables sections are given for a maximum length of 25 m. They
must however be checked and adjusted according to the installation
conditions.
Always shut down the main power supply before opening the electrical
control box.

12
7) Check that no ALARM code is displayed when the unit is ON (see
troubleshooting guide).
8) Set the water flow rate using the by-pass valve (see Sections 3.6 and
2.1), as provided for on each model, to obtain a Entry/Exit temperature
difference of 2°C.
9) After running for a few minutes, check that the air exiting the unit is cool
(between 5 and 10°C).
10) With the unit operating, turn off the filter pump. The unit should turn off
automatically and display error code E03.
11) Run the unit and pool pump 24 hours a day until the desired water
temperature has been reached. When the set water inlet temperature is
reached, the unit will shut down. It will restart automatically (provided the
pool pump is running) if the pool temperature falls by 0.5°C below the set
temperature.
Flow rate controller - The unit is fitted with a flow rate controller that turns on
the heat pump when the pool filtration pump is running and turns it off if the
filtration pump is off. If the water is low, alarm code E03 is displayed on the
regulator (See Section 6.4).
Time delay - the unit incorporates a time delay of 3 minutes to protect
the control circuit components, eliminate any restart instability and any
switch mechanism interference. Thanks to this time delay, the unit restarts
automatically approximately 3 minutes after any loss of power to the control
circuit. Even a brief loss of power activates the restart time delay.
3. INSTALLATION AND CONNECTION (continued)

13
4. USER INTERFACE
4.1 Overview
The heat pump is fitted with an electronic control panel, electronically
connected and pre-set at the factory to heating mode.
Legend
On/Off and Return button
Scroll down
Scroll up
HeatRelax
HeatRelax HeatRelax
OFF mode
When the heat pump is on standby (OFF mode), the indication OFF is
displayed on the control screen.
ON mode
When the heat pump is running or adjusting (ON mode), the water inlet
temperature is displayed on the screen.
2 s
OFF mode ON mode

14
4. USER INTERFACE (continued)
4.2 Settings and viewing the set point
(Desired water temperature)
In OFF mode and in ON mode
Press once the button or to view the set point.
Press twice the button or to set the desired set point.
Settings are made to an accuracy of 0.5 °C.
Note: The settings are automatically saved after 5 s if no button is pressed.
It is recommended never to exceed 30°C to avoid deterioration of the
liners.
4.3 Locking and unlocking the touch screen
Press the On/Off button for 5 seconds until it beeps. The buttons become
inactive.
To unlock, press for 5 seconds until it beeps.
The buttons become active again.

15
4. USER INTERFACE (continued)
HeatRelax
HeatRelax
HeatRelax
HeatRelax
1 s
1 s
1 s
4.4 Operating mode selection
OFF mode
OFF mode
Heating mode
Automatic mode
Cooling mode
1 s

16
4.5 Water flow setting
While the heat pump is running and the water inlet and outlet valves are open,
adjust the by-pass valve to obtain a difference of 2°C between the water
inflow and outflow temperature (see Functional Diagram Section 3.1).
You can check the setting by viewing the inflow and outflow temperatures
directly on the control panel by following the procedure below.
Then adjust the by-pass to obtain a difference of 2°C between the inflow and
the outflow.
Press once to exit the menu.
Note: Opening the by-pass valve creates a weaker flow which results in an
increased ∆T.
Closing the by-pass valve creates a stronger flow which results in a
decreased ∆T.
Inflow
temperature Outflow temperature
10 s
HeatRelax HeatRelaxHeatRelax
5 s
4. USER INTERFACE (continued)

17
5. MAINTENANCE AND WINTERISATION
5.1 Maintenance
These maintenance operations must be carried out once per year in order to
guarantee the longevity and the good working condition of the heat pump.
• The maintenance and repairs of the device must be carried out by an
accredited professional in accordance with the regulatory texts and the
rules of the art in effect in the country where the device is installed (see
§ 3.4).
For any intervention on the cooling circuit, the professional must hold a
certificate of competence in handling refrigerants.
• Check the power cable. If the power cable is damaged, it has to be
replaced by the manufacturer, its after-sales service or by a qualified and
authorised person.
• Verify the grounding connection of the device and its continuity.
• Clean the coil with the help of a soft brush or jet of air or water (Warning,
never use a high pressure cleaner).
• Verify that the drains flow well.
• Verify the tightening of the hydraulic and electrical connections
• Verify the hydraulic sealing of the condenser.
• Have the leak-tightness of the cooling circuit to the leak detector checked
by an accredited professional.
Before any maintenance operation, the heating pump must be
disconnected from any electrical current source. The maintenance
operations must only be carried out by personnel that is qualified and
authorised to handle liquid refrigerants.
5.2 Winterising
• Put the heat pump in “OFF” mode.
• Cut the power supply to the heat pump.
• Empty the condenser with the help of the drain to avoid any risk of
deterioration (high risk of freezing).
• Close the by-pass valve and unscrew the entry/exit connection unions.
• Eliminate the maximum amount of residual stagnant water from the
condenser with the help of an air gun.
• Close the water entry and exit areas of the heating pump to avoid
introducing foreign bodies.
• Cover the heating pump with a dedicated winterising case.
Any damage caused by poor winterising maintenance will lead to
cancellation of the warranty.

18
FM
C2
BLK BLU
RED
COMP
CC CR
CS
BLK
RED WHT
L N
RED BLU
N
CC
1
2
N
N N
N
4V
L N 12
FS HPLP
FS FS
LP LP
HP HP
RED
L 1
N
N
13
2 4
5
6
7
8
01
N
N
N
CC
CS
CR
N
4V
t
5K
t
5K
t
5K
t
5K
OUT3
OUT4
OUT5
AC-N
3 4 3 4
CN19
GND
AI05
GND
AI04
GND
AI03
GND
AI02
GND
CN1 CN2
12V
NET
GND
DI01
GND
DI02
GND
DI03
GND
DI04
GND
DI05
GND
AI01
GND
DI06
GND
CN6
AI06
CN16
GND
+5V
OUT1 OUT2
22
IT
IT
OT
OT
AT
AT
CT
CT
C1
TC
12V
6.8K
BLU
Y/G
BRN
Controller
2
6. APPENDICES
6.1 Wiring diagrams
COMMENT:
AT: AIR TEMPERATURE SENSOR
COMP: COMPRESSOR
CT: EVAPORATOR TEMPERATURE SENSOR
FM: FAN MOTOR
FS: WATER DETECTOR
HP: HIGH-PRESSURE SWITCH
IT: WATER INLET TEMPERATURE SENSOR
LP: LOW-PRESSURE SWITCH
OT: WATER OUTLET TEMPERATURE SENSOR
TC : 230V/ 12VTRANSFORMER
C1: COMPRESSOR CAPACITOR
C2: FAN CAPACITOR
230V/ 50Hz
power supply
Dry contact
7 A maxi
HPR06M