Hayward HP50CL Service manual

Models HP50CL
Hayward Pool Products Canada, Inc.
2880 Plymouth Dr., Oakville, ON L6H 5R4
Haywardpool.ca / 1.888.238.7665
SWIMMING POOL HEAT PUMP UNIT
Installation & Instruction Manual

CONTENTS
1. Preface 1
2. Specifications 2
2.1 Performance Data of Swimming Pool Heat Pump Unit 2
2.2 Dimensions for Swimming Pool Heat Pump Unit 3
3. Installation and Connection 4
3.1 Installation of System 4
3.2 Swimming Pool Heat Pumps Location 5
3.3 How Close to Your Pool? 5
3.4 Swimming Pool Heat Pumps Plumbing 6
3.5 Swimming Pool Heat Pumps Electrical Wiring 7
3.6 Initial Start-up of the Unit 7
4. Usage and Operation 8
8
9
11
12
5. Maintenance and Inspection 16
6. Appendix 14
14
6.2 Wiring Diagram 15
6.3 Exploded View and Spare Parts List 16
4.1 Function of the controller
4.2 Usage of the controller
4.3 Parameter table
4.4 Mulfunction table
6.1 Connection of PCB: Illustration

1. PREFACE
In order to provide our customers with quality, reliability and versatility, this product has been made
to strict production standards. This manual includes all the necessary information about installa-
tion, debugging, discharging and maintenance. Please read this manual carefully before you open
or maintain the unit. The manufacture of this product will not be held responsible if someone is
injured or the unit is damaged, as a result of improper installation, debugging, or unnecessary
maintenance. It is vital that the instructions within this manual are adhered to at all times. The unit
must be installed by qualified personnel.
The unit can only be repaired by qualified installer centre , personnel or an authorised dealer.
Maintenance and operation must be carried out according to the recommended time and frequency,
as stated in this manual.
Use genuine standard spare parts only.
Failure to comply with these recommendations will invalidate the warranty.
Swimming Pool Heat Pump Unit heats the swimming pool water and keeps the temperature
constant. For split type unit, The indoor unit can be Discretely hidden or semi-hidden to suit a
luxury house.
Our heat pump has following characteristics:
1 Durable
The heat exchanger is made of PVC & Titanium tube which can withstand prolonged exposure to
swimming pool water.
2 Installation flexibility
The unit can be installed outdoors or indoors.
3 Quiet operation
The unit comprises an efficient rotary/ scroll compressor and a low-noise fan motor, which
guarantees its quiet operation.
4 Advanced controlling
The unit includes micro-computer controlling, allowing all operation parameters to be set.
Operation status can be displayed on the LCD wire controller. Remote controller can be chosen
as future option.
1

2.SPECIFICATION
2.1 Performance data of Swimming Pool Heat Pump Unit
REFRIGERANT : R410A
Unit
Heating Capacity
Heating Power Input
Running Current
Power Supply
Compressor Quantity
Compressor
Fan Quantity
Fan Power Input
Fan Rotate Speed
Fan Direction
Noise
Water Connection
Water Flow Volume
Water Pressure Drop(max)
Unit Net Dimensions(L/W/H)
Unit Shipping Dimensions(L/W/H)
Net Weight
Shipping Weight
Model
kW
BTU/h
kW
A
W
RPM
dB(A)
m3/h
kPa
mm
mm
kg
kg
mm
HP50CL
14.7
50000
2.68
12
208-230V～/60Hz
1
rotary
1
120
850
horizontal
54
48.3
4.5
10
Se e t he drawin g of t he un it s
See package label
See nameplate
See package label
Heating: Outdoor air temp:27℃/24℃, Inlet water temp:26℃
2

2.2 The dimensions for Swimming Pool Heat Pump Unit
2.SPECIFICATION
3
W r Outlet
48.3
ate

48.3

Water Inlet
265
658
1049 455
1002
630
103
455 424

3.INSTALLATION AND CONNECTION
Chlorinator cell Water outlet
Valve
Water supply
Water inlet
3.1 Installation illustration
Pool
Installation items:
The factory only provides the main unit and the water unit; the other items in the illustration are
necessary spare parts for the water system ,that provided by users or the installer.
Attention:
Please follow these steps when using for the first time
1.Open valve and charge water.
2.Make sure that the pump and the water-in pipe have been filled with water.
3.Close the valve and start the unit.
ATTN: It is necessary that the water-in pipe is higher than the pool surface.
The schematic diagram is for reference only. Please check the water inlet/outlet label on the heat
pump while plumbing installation.
Sand filter
(or other type filter)
Water pump
4

3.INSTALLATION AND CONNECTION
3.2 Swimming Pool Heat Pumps Location
The unit will perform well in any outdoor location provided that the following three factors are presented:
1. Fresh Air - 2. Electricity - 3. Pool filter piping
The unit may be installed virtually anywhere outdoors. For indoor pools please consult the supplier. Unlike
a gas heater, it has no draft or pilot light problem in a windy area.
DO NOT place the unit in an enclosed area with a limited air volume, where the units discharge air will be
re-circulated.
DO NOT place the unit to shrubs which can block air inlet. These locations deny the unit of a continuous
source of fresh air which reduces it efficiency and may prevent adequate heat delivery.
3.3 How Close To Your Pool?
Normally, the pool heat pump is installed within 7.5 metres of the pool. The longer the distance from the
pool, the greater the heat loss from the piping. For the most part ,the piping is buried. Therefore, the heat
loss is minimal for runs of up to15 meters(15 meters to and from the pump = 30 meters total), unless the
ground is wet or the water table is high. A very rough estimate of heat loss per 30 meters is 0.6 kW-hour,
(2000BTU) for every 5 ℃difference in temperature between the pool water and the ground surrounding the
pipe, which translates to about 3% to 5% increase in run time.
5
Air inlet
Air outlet
300mm
700mm
300mm
500mm
700mm

3.4 Swimming Pool Heat Pumps Plumbing
The Swimming Pool Heat Pumps exclusive rated flow titanium heat exchanger requires no special
plumbing arrangements except bypass(please set the flow rate according to the nameplate). The water
pressure drop is less than 10kPa at max. Flow rate. Since there is no residual heat or flame Tempera-
tures, The unit does not need copper heat sink piping. PVC pipe can be run straight into the unit.
Location: Connect the unit in the pool pump discharge (return) line downstream of all filter and pool
pumps, and upstream of any chlorinators, ozonators or chemical pumps.
Standard model have slip glue fittings which accept 32mm or 50 mm PVC pipe for connection to the
pool or spa filtration piping. By using a 50 NB to 40NB you can plumb 40NB
Give serious consideration to adding a quick coupler fitting at the unit inlet and outlet to allow easy
draining of unit for winterizing and to provide easier access should servicing be required.
Condensation: Since the Heat pump cools down the air about 4 -5℃, water may condense on the fins
of the horseshoe shaped evaporator. If the relative humidity is very high, this could be as much as
several litres an hour. The water will run down the fins into the basepan and drain out through the
barbed plastic condensation drain fitting on the side of the basepan. This fitting is designed to accept
20mm clear vinyl tubing which can be pushed on by hand and run to a suitable drain. It is easy to
mistake the condensation for a water leak inside the unit.
NB: A quick way to verify that the water is condensation is to shut off the unit and keep the pool pump
running. If the water stops running out of the basepan, it is condensation. AN EVEN QUICKER WAY IS
to TEST THE DRAIN WATER FOR CHLORINE - if the is no chlorine present, then it's condensation.
6
3.INSTALLATION AND CONNECTION3.INSTALLATION AND CONNECTION
To pool
PVC COUPLER
RECOMMENDED(Provided)
From pump
CONDENSATION DRAIN
BARB FTG

3.5 Swimming Pool Heat Pumps Electrical Wiring
NOTE: Although the unit heat exchanger is electrically isolated from the rest of the unit, it simply
prevents the flow of electricity to or from the pool water. Grounding the unit is still required to protect
you against short circuits inside the unit. Bonding is also required.
The unit has a separate molded-in junction box with a standard electrical conduit nipple already in
place. Just remove the screws and the front panel, feed your supply lines in through the conduit nipple
and wire-nut the electric supply wires to the three connections already in the junction box (four
connections if three phase). To complete electrical hookup, connect Heat Pump by electrical conduit,
UF cable or other suitable means as specified (as permitted by local electrical authorities) to a
dedicated AC power supply branch circuit equipped with the proper circuit breaker, disconnect or time
delay fuse protection.
Disconnect - A disconnect means (circuit breaker , fused or un-fused switch) should be located within
sight of and readily accessible from the unit, This is common practice on commercial and residential air
conditioners and heat pumps. It prevents remotely-energizing unattended equipment and permits
turning off power at the unit while the unit is being serviced.
3.6 Initial startup of the Unit
NOTE- In order for the unit to heat the pool or spa, the filter pump must be running to circulate water
through the heat exchanger.
Start up Procedure - After installation is completed, you should follow these steps:
1. Turn on your filter pump. Check for water leaks and verify flow to and from the pool.
2. Turn on the electrical power supply to the unit, then press the key ON/OFF of wire controller, It
should start in several seconds.
3. After running a few minutes make sure the air leaving the top(side) of the unit is cooler(Between 5-10 ℃)
4. With the unit operating turn the filter pump off. The unit should also turn off automatically,
5. Allow the unit and pool pump to run 24 hours per day until desired pool water emperature is reached.
When the water-in temperature reach setting, The unit just shuts off. The unit will now automatically
restart (as long as your pool pump is running)when the pool temperature drops more than 2℃below set
temperature.
Time Delay- The unit is equipped with a 3 minute built-in solid state restart delay included to protect
control circuit components and to eliminate restart cycling and contactor chatter. This time delay will
automatically restart the unit approximately 3 minutes after each control circuit interruption. Even a brief
power interruption will activate the solid state 3 minute restart delay and prevent the unit from starting
until the 5 minute countdown is completed. Power interruptions during the delay period will have no
effect on the 3 minute countdown.
7
3.INSTALLATION AND CONNECTION

4.1. Function of wire controller
Timer on
indicator
Timer off
indicator
LED display
8
4. USAGE
Press this key to turn on/off the unit
Press this key to select the upward option
or increase the parameter value.
Press this key to select the downward
option or decrease the parameter value.
ON/OFF
Up
Down
Key Key name Key function

4.2. Usage of wire controller
4.2.1 Turn ON/OFF the unit
4.2.2 Setting temperature
When the unit is off, press the key“ ”0.5s to turned on the unit;
When the unit is on, press the key“ ”0.5s to show down the unit.
Standinterfaceby Running interface
Press“ ”0.5s
Press“ ”0.5s
9
Heating/ Cooling
actual water Temp.
4. USAGE
In the running interface，press“ ”or“ ”then the current mode target-temperature flashes,
then press“ ”to increase the temp.value, or press“ ”to decrease it. Press“ ”will not
save setting parameter but back to the main interface; Attention：If there is no operation for
5s，system would remember parameter setting and back to the main interface. In the main
interface，press“ ”for 2s you can see the outlet temp.The parameter is then flashed and the
display is back to the main interface after 10s.
Press“ ”
Press“ ” Press“ ”
Press“ ”2s
or “ ”
Heating/ Cooling
Target Temp.
Heating/ Cooling
Target Temp.
Outlet Temp.
System will save user's
setting and return back
to main interface if there
is no operation in 5s.

4. USAGE
To avoid mis-operations, please lock the controller after parameter setting.
At the main interface, pressing “ ” for 5 seconds, when hearing one sound, the keyboard is locked.
When the keyboard is locked, pressing “ ” for 5 seconds, when hearing one sound, the keyboard
lock is open.
NOTES: When the unit is in alarming state, the key lock can be removed automaticly.
In the main interface,press “ ” and “ ” for 0.5s can set the mode,press “ ” or “ ” to change
the current mode,you can switch different modes of colling, heating and auto mode. If there is no
operation for 5s system will save the current mode and back to the main interface,press “ ” can
not save setting. (The modes switching is useless of the unit you buy is singel-cold/single-heat unit.)
4.2.3 Mode switch
4.2.4 Keyboard lock
10
Press“ ” and “ ”
Press“ ” or “ ”
Press“ ” or “ ”
Cooling mode
Auto mode
Heating mode

4. USAGE
4.2.5 Malfunction display
There will be malfunction code showing on the controller screen when relative malfunction occurs.
If there are more than one malfuctions occurs at the same time, you can check the current error codes
list by pressing “ ” or “ ” key.
You can refer to the malfunction table to find out the failure cause and solution. For example：
11
Water Inlet Temp. Sensor failure
4.3. Parameter table
Meaning Default Remarks
Set-point of auto mode target temp. 27 Ajustable
Remark:
The wire controller can display the temperature unit as "℉" or "℃" according to the unit Model
you bought.

4.4 Malfunction Table
The common failure cause and solution.
4. USAGE
12

Check the water supply device and the release often. You should avoid the condition of no water or
air entering into system, as this will influence unit's performance and reliability. You should clear the
pool/spa filter regularly to avoid damage to the unit as a result of the dirty of clogged filter.
The area around the unit should be dry, clean and well ventilated. Clean the side heating exchanger
regularly to maintain good heat exchange as conserve energy .
The operation pressure of the refrigerant system should only be serviced by a certified technician.
Check the power supply and cable connection often,.Should the unit begin to operate abnormally,
switch it off and contact the qualified technician.
Discharge all water in the water pump and water system ,so that freezing of the water in the pump or
water system does not occur. You should discharge the water at the bottom of water pump if the unit
will not be used for an extended period of time. You should check the unit thoroughly and fill the
system with water fully before using it for the first time after a prolonged period of no usage.
5. MAINTENANCE AND INSPECTION
13

6.APPENDIX
OUT1 OUT2 CN19
OUT3
OUT4 PC1001
OUT5
AC-N
CN1 CN2
CN6
CN4
GND
AI06
GND
AI05
GND
AI04
GND
AI03
GND
AI02
GND
AI01
+5V
CN16
GND
CN3
3
4
3
4
T5AL250V
FUSE
12V NET GND DI01 GND DI02 GND DI03 GND DI04 GND DI05 GND DI06 GND
6.1 Connection of PCB illustration
Connections explanation：
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
OUT1
OUT2
OUT3
OUT4
OUT5
AC-N
NET GND 12V
DI01 GND
DI02 GND
DI03 GND
DI04 GND
DI05 GND
DI06 GND
AI01 GND
AI02 GND
AI03 GND
AI04 GND
AI05 GND
AI06 GND
CN1
CN2
CN6
CN19
5V CN16 GND
Compressor of system1（220-230VAC）
Water pump（220-230VAC）
4way valve （220-230VAC）
High speed of fan motor（220-230VAC）
Low speed of fan motor（220-230VAC）
Neutral wire
Wire controller
On/Off Switch (input) (no use)
Flow switch (input) ( normal close)
Low pressure protect
High pressure protect
No use
No use
Suction temp.(input)
Water in temp.(input)
Water out temp.(input)
Coil Temp. ( input)
Ambient temp.(input)
Ajustable fan speed/Exhaust temperature
Primary transformer
Secondary transformer
No use
Electronic expansion valve
Flow meter
Symbol Meaning
14

6.APPENDIX
6.2 Wiring Diagram:
FM
C2
BLK BLU
RED
TO POWER
SUPPLY
TO PUMP 240V
COMP
208-230V~/60Hz
CC CR
CS
BLK
RED WHT
CS
CR
BLK WHT
P
L1 L2 12
C1
KM1
CC
KM1
L1
22
L1
L2
13
24
5
6
7
8
01
L2
TC
12V
CC
4V
L2
L2
L2
L2
L2
L2 L2
L2 L2
L2 L2
L2
L1
L2
4V
L1
L1
L21
K1
HP12
L21 L2
AT˖Ambient temperature
COMP˖Compressor
CT˖Coil temperature
FM˖Fan motor
IT˖Inlet water temperature
LP˖Low pressure protection
OT˖Outlet water temperature
4V˖4 way valve
FS˖Flow switch
HP11˖High pressure protection(4.0MP)
TC˖Transformer
KM1˖Contactor compressor
HP12˖High pressure protection(4.4MP)
KM1
L22
LP
FS
FS
LP
LP
FS HP11
HP11
HP11
t
5K
t
5K
t
5K
t
5K
IT
IT
OT
OT
AT
AT
CT
CT
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
PC1001
4VRED
6.8K
P
12
1 2
REMOTE IN
1
2
L2
CODE˖20180925-0001
HP50CL
BLU
Y/G
BRN
Controller
3
15

6.3 Exploded View
(1) Complete machine structure explosion diagram
(2) Electrical control structure explosion diagram
6.APPENDIX
1
2
3
4
5
6
7
8 9 10 11 12 13
14
15
16
17
18
20
19
21
22
23
24
252627
28
293031
32 33
35
34
3637
38
16

(3) Spare Parts List
6.APPENDIX
Specifications
Code Name Qty
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
80900197
95005-310456
20000-220188
3500-2701
20000-330124
32008-210069
32012-210737
32012-120165
32012-210742
32012-220009
80700707
80700713
20000-110041
32012-210739
32012-210740
32012-210220
32012-120036
80700706
32009-220029
80700708
2002-1443
2001-1499
20000-140150
2000-1460
20000-140058
20000-140067
2004-1444
2000-3603
2001-3605
20000-360059
2001-1418
2000-3505
95005-310145
20000-390231
2000-3501
2000-3909
20000-370006
20000-360103
Front frame
LED301
Plastic fan net
Fan blade
Motor
Before the fixed plate
Support plate
Finned heat exchanger
Motor bracket
Top
On the left side of the plate
Partition
Compressor
Electrical box
Cover plate
Fire damper
Titanium tube heat exchanger
Right side of the plate
Junction box body
Chassis
Get straight through
Check valve
Needle valve
Tee
Get straight through
Double capillary joint
Filter
Pressure switch
Pressure switch
Pressure switch
Four-way valve
Compressor capacitor
PC1001
Five position connector
Fan capacitor
Two position connector
Power transformer
Single-phase ac contactor
ABS
20000-430126+35005-310416
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
YDK45-6(YY060-1206P01-004) UL
Galvanized sheet
Galvanized sheet

Galvanized sheet
ABS
Galvanized sheet
Galvanized sheet
PA270X3CS-3MUU
Galvanized sheet
Galvanized sheet
Galvanized sheet

Galvanized sheet
ABS
Galvanized sheet

PKV-6X1
40mm 1/2"



（）T2Y2
0.30MPa/0.15MPa ±0.05 NO
3.2MPa/4.4MPa ±0.15 NC
3.2MPa/4.0MPa ±0.15 NC
SHF-7H-34U-P/C02C00S
!#$*
20000-430001+35005-310145
UTD-32/5P(L1、L2、PE、1、2)
!!#
RS9211(450V~ 4mm²)
41X26.5F+red(VH-3)、yellow(VH-2)
HCC-2XU04AA415
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
2
1
1
1
1
1
1
1
1
1
1
1
17