Hayward ENERGYLINE PRO INVERTER Service manual

ENERGYLINE PRO
INVERTER
ISENPINV_RevB
SWIMMING POOL HEAT PUMP UNIT
Installation & Instruction Manual

Please read attentively and save for future consultation.
This document must be given to the pool owner and should be kept in a safe place.
CONTENTS
1. GENERAL INSTRUCTIONS - SAFETY 1
2. 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 unit 7
3.3 Hydraulic connection 9
3.4 Electrical connection 10
3.5 Initial start-up 11
3.6 Water flow setting 13
4. USER INTERFACE 14
4.1 General presentation 14
4.2 Setting the Date and Time 15
4.3 Timer function settings 15
4.4 Setting and visualisation of the set point 17
4.5 Locking and unlocking the touch screen 18
4.6 SILENT function settings 19
5. MAINTENANCE AND WINTERISING 22
5.1 Maintenance 22
5.2 Winterising 22
6. APPENDIX 24
6.1 Electrical diagrams 24
6.2 Heating priority wiring for monophasic pump 28
6.3 Heating priority wiring for three phases pump 29
6.4 Exploded view and spare parts 30
6.5 Troubleshooting guide 38
6.6 Recording base 40
6.7 Warranty 41
6.8 End of life of the device 41

1
1. GENERAL INSTRUCTIONS - SAFETY
We thank you for purchasing this Hayward swimming pool heat pump unit. The
Energyline Pro INVERTER was designed according to strict manufacturing
standards to meet the highest quality requirements. The Energyline Pro
INVERTER will offer you exceptional performance throughout the swimming
season by adapting its power, electricity consumption and sound level to your
swimming pool's heating needs with its INVERTER control logic.
This manual includes all of the necessary information concerning installation,
debugging and maintenance. Please attentively read this manual before opening
the unit or before carrying out any maintenance operations on it. The manufacturer
of this product will not, under any circumstances, be held responsible in the case
of injury to the user or damage to the unit resulting from improper installation,
debugging or unnecessary maintenance. It is essential to follow all of the
instructions specified in the 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.

2
1. GENERAL INSTRUCTIONS - SAFETY (continued)
• 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.
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.

3
• Cover the heating pump with a dedicated winterising case.
Any damage caused by poor winterising maintenance will lead to
cancellation of the warranty.
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

4
2. SPECIFICATIONS
2.1 Technical data for the swimming pool heat pump unit
Models ENERGYLINE PRO
INVERTER ENPI7M ENPI9M ENPI11M ENPI13T
Rated heating capacity(a) kW 7,05 9,20 11,40 13,40
Electrical power consumption(a) kW 1,33 1,81 2,18 2,60
COP(a) / 5,30 5,08 5,23 5,15
Power supply V230V230V230V400V
Phase / 1N 1N 1N 3N 
Frequency Hz 50 Hz 50 Hz 50 Hz 50 Hz
Rated service current(a) A 5,69 7,8 9,32 4,47
Maximum service current (CMS) A 15,5 21 25,9 11,4
aM type fuse calibre aM 16 25 32 16
Curve D circuit breaker D 16 25 32 16
Starting current A< CMS < CMS < CMS < CMS
Hydraulic connection mm 50
Nominal water flow(a) m3/h 3,20 4,00 4,70 5,70
Water pressure drop (max) kPa 4,60 7,00 11,60 5,10
Compressor / Rotary
Type / Inverter
Quantity / 1
Refrigerant / R410A
Weight of refrigerent kg 1,10 1,30 1,80 2,10
teqCO2/ 2,30 2,71 3,76 4,38
Leak control frequency /Not compulsory but recommended
Fan / Axial
Diameter mm 500
Quantity / 1 1 2 2
Motor / Inverter
Quantity / 1 1 2 2
Rotation speed Tr/min 500...750 500…900 400…800 400…850
Sound pressure level (at 1 meter) dB(A) 44-53 45-56 46-57 48-58
Sound pressure level (at 10 meters) dB(A) 27-36 28-39 29-40 31-41
Unit net dimensions (L/l/h) mm 1117 / 485 / 868 1115 / 485 / 1275
Net weight per unit kg 77 82 110 113
(a) The rated heating capacities are based on Test standard NF-EN 14511, used in reference framework NF-414.
Dry air 15°C - Relative humidity 71% - Incoming water temperature 26°C.

5
2. SPECIFICATIONS (continued)
2.2 Operating range
Use the swimming pool heat pump unit within the following ranges of
temperature and humidity to ensure safe and efficient operation.
Heating mode Cooling mode
Outside temperature -12°C – +35°C +7°C – +43°C
Water temperature +12°C – +40°C +8°C – +40°C
Relative humidity < 80% < 80%
Setting range from the set point +15°C – +32°C +8°C – +32°C
If the temperature or humidity does not correspond to these conditions,
the security measures could be activated and the swimming pool heat
pump unit may no longer work.
The maximum heating temperature is set at 32°C to prevent damage to
the liners. Hayward cannot be held responsible if used at a temperature
above +32°C.

6
2. SPECIFICATIONS (continued)
2.3 Dimensions
Models:
C
C
F
G
H
D
E
A
A
B
B
D
E
ENPI7M / ENPI9M
ENPI11M / ENPI13T
Water outlet Ø 50 mm
Water inlet Ø 50 mm
Unit: mm
TYPE
SIZE ENPI7M / ENPI9M ENPI11M / ENPI13T
A1150 1150
B485 485
C868 1275
D400 470
E100 98
F815 790
G447 447
H430 430

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 presented in the diagram are
spare parts to be supplied by the installer.
3.2 Heat pump unit
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.
Water Inlet
valve
Water outlet
valve
Filter
By-pass valve
Pool
Water outlet
Chlorinator cell
(or other treatment)
Pump
filtration
Unit: mm
Air inlet
500
300
700
700
2500
Air outlet

8
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.
3. INSTALLATION AND CONNECTION (continued)

9
3. INSTALLATION AND CONNECTION (continued)
3.3 Hydraulic connection
The unit is supplied with two 50 mm Ø union connections. Connect the water
inlet to the heat pump coming from the filtration group then connect the water
outlet to the heat pump at the water conduit going to the pool (see diagram
below).
Install a by-pass valve between the heat pump entrance and exit.
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.
Water inlet Ø 50 mm
Water outlet Ø 50 mm

10
Verify 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 required to
supply any other appliance connected to the same circuit.
ENPI7M 230V+/- 10 % 50 Hz 1 Phase
ENPI9M 230V+/- 10 % 50 Hz 1 Phase
ENPI11M 230V+/- 10 % 50 Hz 1 Phase
ENPI13T 400V+/- 10 % 50 Hz 3 Phases
See the corresponding wiring diagram in the appendix.
The connection box is located on the right side of the unit. Three
connections are designed for the power supply and two are for
controlling the filter pump (Enslavement).
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
Electrical installation and wiring for this equipment must be in
conformity with local installation standards.
Check that the phases
balance does not
exceed 2%
Power supply
400V 3N50Hz
R S T N
= = = =
1 2
==
Dry contact 16 A max
potential free.
Priority heating function
Dry contact 16 A max
potential free.
Priority heating function
L N 1 2
= = = =
Power supply
230V/ 50Hz
OUT2 OUT2

11
3.5 Initial start-up
Start-up procedure - After installation is complete, follow these steps:
1) Rotate the fans by hand to verify that they can turn freely by hand, and
that the turbine is correctly affixed to the motor shaft.
2) Ensure that the unit is connected correctly to the main power supply (see
the wiring diagram in the appendix).
3) Activate the filtration pump.
4) Verify that all water valves are open and that the water flows toward the
unit before switching on the heating or cooling mode.
5) Verify that the drainage hose is correctly affixed and that it causes no
obstructions.
6) Activate the unit power supply, then press the On/Off button on the
control panel.
7) Ensure that the alarm signal ( ) does not light up red.
If necessary see the troubleshooting guide (see § 6.4).
3. INSTALLATION AND CONNECTION (continued)
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.
After a cut-off of the power supply, wait 10 minutes before accessing
the active internal parts of the equipment (power stored in the
capacitors).
Models ENPI7M ENPI9M ENPI11M ENPI13T
Power supply V/Ph/Hz 230V50Hz 230V50Hz 230V50Hz
400V 3N50Hz
Curve D circuit breaker A16 D 25 D 32 D 16 D
Cable section mm23G 2,5 3G 6 3G 6 5G 2,5

12
8) Set the water flow using the by-pass valve (see § 3.6 and 2.1), as
provided for by each model, to obtain an Entry/Exit temperature of 2°C.
9) After running for several minutes, verify that the air exiting the unit is cool
(between 5 and 10°).
10) With the unit operating, turn off the filter pump. The unit should
automatically turn off and display error code E03 (See § 6.4).
11) Allow the unit and the pool pump to run 24 hours per day until the
desired water temperature has been reached. When the set water inlet
temperature is reached, the unit will turn off. It will automatically restart (as
long as the pool pump is running) if the pool temperature is at least 0.5°C
below the set temperature.
Water flow switch - The unit is equipped with a flow switch that turns on the
heat pump when the pool filtration pump is running, and deactivates it when
the filtration pump is out of order. If the water is low, the E03 alarm code will
appear on the regulator (See § 6.4).
Time delay - The unit is equipped with a time delay of 3 minutes in order
to protect the control circuit components, to eliminate restart cycling and
contactor chatter. Thanks to this time delay, the unit automatically restarts
approximately 3 minutes after each control circuit interruption. Even a brief
power interruption will activate the restart time delay.
3. INSTALLATION AND CONNECTION (continued)

13
3.6 Water flow setting
With the water entry and exit valves being open, adjust the by-pass valve in
order to obtain a difference of 2°C between the inflow and outflow temperature
(see principle diagram § 3.1). You can verify the switch by seeing the entry/
exit temperatures directly on the control panel.
3. INSTALLATION AND CONNECTION (continued)
Water inlet temperature Water outlet temperature
Note: Opening the by-pass valve creates a weaker flow, which leads to an
increase in ∆T.
Closing the by-pass valve creates a stronger flow, which leads to a
decrease in ∆T.

14
4. USER INTERFACE
4.1 General presentation
The heat pump is equipped with a digital control panel with a touch screen,
electronically connected and pre-set at the factory in heating mode.
Legend
13
14
15
17
12
12a
7
8
9
10
6
21 3 4 5
10a1112b 10b10c
16
1Alarm (blinking red)
2Locked screen
3Date
4Hour
5Outside temperature
6
Recording base (Water
temperature and power
consumption)
7Reading settings and saving
8Scroll up / Increase
9Scroll down / Decrease
10 Operating mode selection
10a Cooling mode
10b Heating mode
10c Automatic mode
11 Water Output temperature
12 Selecting silence mode
12a Setting silence mode timer
12b Silence mode and activation
light
13 Conversion °C / °F
14 Water Input temperature
15 Setting the Timer date and
time ON/OFF
16 Defrost mode
17 On / Off

15
OFF Mode
When the heating pump is in sleep mode (OFF Mode), the button is grey.
ON Mode
When the heating pump is running or regulating (ON Mode), the button
lights up green.
4.2 Setting the Date and Time
4. USER INTERFACE (continued)
4.3 Timer function settings
Setting this function is necessary if you would like to run the heat pump for
a shorter period than what is defined by the filtration clock. Therefore, you
can program a deferred start and an anticipated stop or simply stop a certain
timeframe from running (at night, for example).
It is possible to set one Start Timer and one Stop Timers.
1
2
4
3
Quit without saving
Back to the previous screen
Back
Confirm
Enter all the fields (Day/Month/Year, Hour/Minute/Second before
confirming, otherwise the changes will not be saved.

16
4. USER INTERFACE (continued)
• Once the start time has been set, press (step 6) to activate the Timer. The
symbol and time now have blue highlighting.
• Repeat steps 3 to 6 to set and activate the stop time ( )
• When the settings are complete, the operating range of the heat pump is
highlighted in green and the highlight range is yellow.
• Press twice on to return to the main screen.
6
3
4
5
1
2
Stop (Confirm)
(Activate)
Start
Blue highlighting = Activated
Grey = Deactivated
The setting step is "hour to
hour".

17
4. USER INTERFACE (continued)
4.4 Setting and visualisation of the set point
In Mode “OFF” or Mode “ON”
Press the button to display the set point, then press or pour to
set the set point you wish.
Confirm by pressing and you will return to the main screen automatically.
The setting is made with a precision of 0.5 °C.
It is recommended to never exceed 30°C to avoid alteration of the liners.

18
4. USER INTERFACE (continued)
4.5 Locking and unlocking the touch screen
The control screen locks automatically after one minute (default setting).
It is possible to adjust the time before the screen locks automatically to
between 1 and 10 minutes, or simply to cancel this function.
1
2
4
5
3
Automatic locking activated
To unlock the screen, press (anywhere) on the screen for 2s.
Enter the code "22" and confirm by pressing
2
1
3) Set the time to between 1 and 10 minutes. Saving is automatic.
4) Press twice to return to the main screen.
5) To deactivate automatic locking press .