Aqua PH-02620 Service manual

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SWIMMING POOL HEAT PUMP UNIT
Installation & Instruction manual

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CONTENTS
1.Preface ……………………………………………………………………………...…….…………... 4
1.1Preface …………………………………………...…………………...……………...………...…… 4
1.2 Safe precautions …………………………………………………….…...………...….……...……..5
2.Specifications ……………………………………………………………………………….. ………...…5.
2.1 Performance and features. …………………………..…………………………………...… … 5
2.2 System diagram. ……………………………………………………………………...………... 6
2.3 Performance data for Swimming Pool Heat Pump Unit..…………...………….……. ……... 7
2.4 Dimensions for Swimming Pool Heat Pump Unit..…………...………….……..…… . ……... 8
3.Installation and Connection …………………………………………………………..….…..…. . ..….10.
3.1 Installation of System ………………………………………………………...……….…. ……... 10
3.2 Swimming Pool Heat Pumps Location …………………………………………….…... ……... 11
3.3 How Close to your Pool …………………………………………………………..……... ……... 12
3.4 Swimming Pool Heat Plumbing …………………………………………………..…..… ……... 12
3.5 Swimming Pool Heat Pumps Electrical Wiring ………………………………….…….. ……... 12
3.6 Initial Start-up of the Unit …………………………………………………………..…..… ……... 14
4.Usage and Operation …………………………………………………………………….. ………….. 15
4.1 Function of the controller ………………………………………………………..….………….. 15
4.2 How to start heat pump ……………………………………………………………..….. ……… 16
4.3 How to change mode ……………………………………………………………………. ……… 16
4.4 How to set your desired water temperature……..……………………………….……………… 17
4.5 How to change parameter setting ………………………………...…………………………… . 17
4.6 How to check parameter setting & measured values of current status……….…………… . 18
4.7 How to set clock …………………………………………………………………………………. .18
4.8 How to set timer on and timer off ………………………………………………………………. .18
4.9 How to cancel timer on and timer off …………………………………………………………. 19
4.10 Manual/forced defrosting ………………………………………………………………………. .19
4.11 Manufacturer default……………………………………………………………………. ……… 20
5.Protection systems ……………….………………………………………………………..………..…… 21
5.1 Water flow switch …………………………………………………………………………………… 21
5.2 Refrigerant gas high and low pressure protection …………….………………………………… 21
5.3 Overheating protection on the compressor …………..………………………………………… 21

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5.4 Automatic defrost control…………………………………………………………………. ……… 21
5.5 Temperature difference between inflowing and outflowing water……………………………… 21
5.6 Low temperature cut-out…………………………………………………………………………… 21
5.7 Anti-frost protection during winter………………………………………………………. ……… 21
5.8 First anti-frost protection…………………………………………………………………. ……… 21
5.9 Second anti-frost protection ……………………………………………………………. ……… 21
6. Direction …………………………………………………………………………………………… 22
6.1 Swimming pool water chemistry…………………………………………………………………. 22
6.2 Heat pump winterizing ………………………………………………………………………… .22
6.3 Restarting the pump after winter……………………………………………………………………22
6.4 Check-up…………………………………………………………………………………. ……… 22
7. Maintenance and inspection………………………………………………………………………… . 23
7.1 Maintenance……………………………………………………………………………. ………… 23
7.2 Trouble shooting guide ………………………………………………………………. …………. 23
7.3 Malfunction table………………………………………………………………………. …………. 24
8.Wiring diagram…………………………………………………………………………………………… 25
9. Explosive view …………………………………………………………………………………………… 31
10．Performance curve………………………………………………………………………………………40
11. Spare part list…………………………………………………………………………………………… 41

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1. PREFACE
To our customers:
Please read this manual carefully before you install the product, otherwise it may lead to damage to the
heat pump or may injure operators as well as cause financial loss.
1.1 Preface
•In order to provide our customers with quality, reliability and versatility, this product has been
manufactured to strict production standards. This manual includes all the necessary information
about installation, debugging, discharging and maintenance. Please read this manual carefully
before implementation or maintenance of the unit. The manufacturer 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
followed at all times. The unit must be installed by professional technicians.
•The unit can only be repaired by professional technicians, installers 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.
•A swimming pool heat pump unit heats the swimming pool water and keeps the temperature
constant.
Our heat pump has the following characteristics:
i. Durability
The heat exchanger is made of a PVC & Copper Nickle tube which can withstand prolonged
exposure to swimming pool water
ii. Installation on flexibility
The unit can be installed outdoors
iii. Quiet operation
The unit comprises of an efficient rotary / scroll compressor and a low-noise fan motor, which
guarantees its quiet operation.
1.2 Safety precautions
ELECTRICAL POWER MUST BE SWITCHED OFF
BEFORE STARTING ANY WORK ON JUNCTION
BOXES

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The aim of this manual is to provide instructions for installation, commissioning and operation.
WARNING!
The installation, commissioning and maintenance
of the product should be performed by qualified
technicians who have a good knowledge of
standards and local regulations, as well as
experience of this type of equipment.
Take Care!
It is forbidden to start any work on the electrical
components without switching off the electrical
supply to the unit.
WARNING!
The unit must be EARTHED to avoid any risks
caused by insulation defects.
Take Care!
It is forbidden to start any work on the electrical
components if water or high humidity is present at
the installation site.
WARNING!
No wiring must come in contact with the heat
source or the fan rotating parts.
Take Care!
To ensure the unit is running safely, the set water
temperature cannot exceed over 40℃, (105°F).
WARNING!
In preparation for shutting down the unit for a
prolonged period and if the installation does not
contain glycol, the evaporator and the chiller
water pipes need to be carefully and completely
drained of water.
Take Care!
When the unit is being connected, ensure that no
impurities are introduced into the pipe work and
the water circuits.
WARNING!
When shutting down the unit for a prolonged
period the condenser and the chilled water pipes
on the reversible unit need to be carefully flushed
with fresh water (for 15 minutes by the outlet) and
then completely drained of water.
Take Care!
An insulated pipe for protection must be used for
the 3-core signal wire outlet for outdoor
installation.
WARNING!
Any wiring produced on site must comply with
local electrical regulations.
Take Care!
Use Copper supply wires.
WARNING!
Ensure that the electrical supply corresponds to
the specification indicated on the manufacturer
unit plate before proceeding with the connection
and it is in accordance with the wiring diagram
supplied.
Take Care!
The unit should be handled using lifting end
handling equipment appropriate to the unit’s size
and weight.
The manufacturer's warranty will not apply if the installation recommendations listed in
this manual are not followed.
2. SPECIFICATIONS
2.1 Performance and Features
•High efficiency
With a COP value of up to 5.0 our heat pumps are very efficient when transferring heat from the air to
the swimming pool water. There is a cost saving of up to 80% compared to an electrical heater.
•Long lifespan
The heat exchanger is made of PVC and Titanium tube, which can withstand prolong exposure to
swimming pool water.
•Easy control and operation

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The unit is very easy to operate, simply switch it on and set the desired pool water temperature. The
system includes a micro-computer controller, allowing all operation parameters to be set. The
operation status can be displayed on the controller with LCD display.
2.1 System diagram
(Cooling) (Heating)
•Heat pumps utilize the suns free heat by collecting and absorbing energy from the outside air. This
energy is them compressed and transferred to the pool water. Your existing water pump circulates
the water through the heater, usually next to the pool equipment and the water warms up. The heat
pump timer could be set to operate during daylight hours, for example, usually 9 am to 5 pm.
•The unit contains a fan that draws in outside air and directs it over the surface of the EVAPORATOR
(energy collector). The liquid refrigerant within the EVAPORATOR coil absorbs the heat from the
outside air to becomes a gas.
•The warm gas in the coil passes through the COMPRESSOR concentrating and increasing the heat
to form a very hot gas which then passes to the CONDENSER (water heat exchanger). It is here that
the heat exchange occurs as the hot gas gives off heat to the cool swimming pool water circulating
through the coil.
•The pool water becomes warmer and the hot gas cooling as it flows through the CONDENSER coil
returning to its liquid form and after passing on through the CAPILLARY TUBE, the whole process
begins again.
•The state of the heat pump technology can efficiently collect heat from the outside air down to 7℃to
10℃range. For tropic and subtropical climates, this means that a pool can be maintained at 26℃to
32℃.

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2.3 Performance data for Swimming Pool Heat Pump Unit

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2.4 Dimensions for Swimming Pool Heat Pump Unit
PH-02620/PH-02625 (mm)
PH-02630/ PH-02640/ PH-02650/ PH-02660/ (mm)

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PH-02670 (mm)
PH-02700 (mm)

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PH-02710/ PH-02712 (mm)
PH-02713 (mm)

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PH-02714/PH-02715 (mm)
PH-02720 (mm)

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PH-02730/PH-02740 (mm)
PH-02750/PH-02760/PH-02765 (mm)

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PH-02770 (mm)
PH-02780 (mm)
Installation and Connection

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Model
Water
connection
Model
Water
connection
PH-02620
50
PH-02625
50
PH-02630
50
PH-02640
50
PH-02650
50
PH-02660
50
PH-02670
50
PH-02700
63
PH-02710
63
PH-02712
63
PH-02713
63
PH-02714
63
PH-02715
63
PH-02720
90
PH-02730
90
PH-02740
90
PH-02750
110
PH=02760
110
PH-02765
110
PH-02770
160
PH-02780
160

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Installation items:
The Manufacturer only provides the main unit and water unit; the other items in the illustration are
necessary spare parts for the water system, that is provided by the users or the installer.
Attention:
Please follow these steps when using for the first time:
•Open valve and charge water.
•Make sure that the pump and the water-in pipe have been filled with water.
•Close the valve and start the unit.
Attention:
It is necessary that the water-in pipe is higher than the pool surface.
•Single wall heat exchanger, not suitable for potable water connection.
•We do not provide the field wiring connection, please choose the wiring allowing for the Minimum
Circuit Ampacity.
Attention：
•When using automatic chlorine and pH dosage system, it is very important to protect the heat
pump from high concentrations of these chemicals as it could corrode the heat exchanger.
•Therefore, such systems should add the chemicals in the conduits located DOWNSTREAM of the
heat pump and it is recommended to install a check–valve in order to prevent backflow when there
is no water circulation. Damage to the heat pump caused by disregarding any of these
recommendations will invalidate the warranty.
3.2 Swimming Pool Heat Pumps Location
The unit will perform well in any outdoor location provided that the following three factors are present.
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 near to shrubs which can block air-inlet. These locations deny the unit of a
continuous source of fresh air which reduces the efficiency and may prevent adequate heat delivery.

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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 is buried .Therefore, the heat loss is minimal for runs of up to
15 metres (15 metres to and from the pump = 30 metres total) , unless the ground is wet or the water table
is high. A very rough estimate of heat loss per 30 metres is 0.6kW-hour, (2008BTU) for every 5℃
difference in temperature between the pool water and ground surrounding the pipe, which translates to
above 3% to 5% increase in run time.
3.4 Swimming Pool Heat 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 name plate).The water
pressure drop is less than 10kPa at maximum flow rate. Since there is no residual heat or flame
temperature, the unit does not need Copper heat sink piping. PVC pipe can be run straight into the unit
Location: Connect the unit to the pool pump discharger (return) line downstream of all filter and pool
pumps, and upstream of any chlorinators, ozonates or chemical pumps.
A standard model has slip glue fittings which accept 40mm NB PVC pipe for connection to the pool or spa
filtration piping. By using a 50NB to 40NB you can plumb 50NB PVC piping straight into the unit.
Give serious consideration to adding a quick coupler fitting at the unit inlet and outlet to allow easy draining
of the unit for winterizing 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 base pan and
this fitting is designed to accept 3/4’’ 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.
Note: 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 base pan, it is condensation. AN
EVEN QUICKER WAY IS to TEST THE DRAIN WATER FOR CHLORINE. If there is no
chlorine present, then it is condensation.
3.5 Swimming Pool Heat Pumps Electrical Wiring
Important: Although the heat pump is electrically isolated from the rest of the unit, this only prevents
the passage of electricity to or from the pool water. Grounding the unit is still required to
protect you from short circuits inside the unit. Ensure there is adequate ground
connection.
Note: Ensure that the available electrical power supply and the network frequency are matched
to the required operating current, taking account of the appliances specific location and
the current required to supply any other appliances connected to the same circuit.
Always shut down the main power supply before opening the electrical control box.
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For vertical models, remove the curve panel in the front side.
Connect the connection wire cable with the terminal block labeled “Power Supply”, there is a second
terminal block labeled “Water Pump”, to which the filter pump (max.5A/240V) can be connected. This
connection makes it possible to control the filter pump operation with the heat pump. For the mode of water
pump check parameters LA.
Remarks: For models with 3 phases, switching 2 phases may cause inversion in the rotational direction of
electrical motors, which could damage the unit. Therefore, a protection device has been built in,
which will interrupt the circuit if the connection has not been performed correctly.
Model
Voltage(volt)
Fuse(A)
Nominal current
(A)
Cable diameter(mm2)
(for max. length of 15
meters)
PH-02620
220-240
16
7.9
2*2.5+2.5
PH-02625
220-240
16
9.9
2*2.5+2.5
PH-02630
220-240
16
11.6
2*2.5+2.5
PH-02640
3x380
16
5.2
4*1.5+1.5
PH-02650
3x380
16
6.8
4*1.5+1.5
PH-02660
3*380
16
8.3
4*2.5+2.5
PH-02670
3*380
16
10.3
4*2.5+2.5
PH-02700
3*380
32
12
4*4+4
PH-02710
3*380
32
13
4*4+4
PH-02712
3*380
32
14.6
4*4+4
PH-02713
3*380
45
16.3
4*6+6
PH-02714
3*380
64
21.1
4*10+10
PH-02715
3*380
74
26
4*10+10
PH-02720
3*380
75
34.1
4*16+16
PH-02730
3*380
96
43.9
4*16+16
PH-02740
3*380
120
51.4
4*25+25
PH-02750
3*380
150
58.5
4*35+35
PH-02760
3*380
150
68.3
4*35+35
PH-02765
3*380
150
77
4*35+35
PH-02770
3*380
200
82
4*50+50
PH-02780
3*380
200
114
4*70+50

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3.6 Initial Start-up
Start- up Procedure: After installation is completed, you should follow these steps:
1) Switch on the filtering pump
2) Check that all the water valves are open and that water flows into the unit before making any
demand for heating or cooling
3) Ensure that the unit is connected correctly to the main power supply (refer to the wiring diagram)
4) Rotate the fan by hand to ensure that it turns freely, and that the turbine is properly tightened
with the motor shaft
5) Check that the condensate drainage hose is properly attached and free of any blockages
6) Switch on the power supply to the unit, then press the key On/Off on the wire controller
7) Ensure that no ALARM code is displayed when the unit indicates ON (see Trouble Shooting
guide chart)
8) Set the water flow as per requested respectively for each model (see the label of unit)
9) After running for a few minutes make sure the air leaving the unit is cooler (Between 5-10℃)
10) With the unit operating, turn the filter pump off. The unit should also turn off automatically
11) Allow the unit and pool pump to run 24 hours per day until desired pool water temperature is
reached. When the water-in temperature reaches the setting, the unit just shuts off. The unit will
now automatically restart (as long as your pool is running) when the pool temperature drops
more than 2℃below set temperature
Water Flow Switch:
The unit is equipped with a flow switch that turns it on when the pool pump is running and shuts it off when
the pump shuts off. This switch is the same type used in all gas pool heaters and is factory adjusted for
normal pool installations. If the pool water level is more than a few metres above or below the thermostat
knob of the unit, your Dealer may need to adjust it at initial start-up.
Time Delay:
The unit is equipped with 3 minutes 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 minutes restart delay and prevent the unit from restarting until
the unit 5 minutes countdown is completed. Power interruptions during the delay period will have no
effect on the 3 minutes countdown.

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4. USAGE AND OPERATION
4.1 Function of the controller
BUTTON
NAME
FUNCTION
power
ON/OFF
Unlock&Turn on/off the unit
up
Change Modeor increase parameter values
down
Manual defrostor increase parameter values
setting
Inquiries and setting
Query and set parameters
timer
Timing
Timing on/off unit
CAUTION: Only after unlocking can perform any operation
Press and hold ”power” 3 seconds
When no key operation for about 60
seconds, the keys will be locked
automatically
water
temperature
water
temperature
water
temperature