Sunlover Oasis X Series Service manual

Head Office
62 Parkhurst Drive
Knoxfield VIC 3180
T: 03 9887 2131
New South Wales
Unit 1, 20-22 Foundry Road
Seven Hills NSW 2147
T: 02 9838 0000
Queensland
Unit 1, 8 Reichert Drive
Molendinar QLD 4214
T: 07 5679 6821
[e-mail]
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SWIMMING POOL HEAT PUMP UNIT
Installation & Instruction Manual
X 19 | X 24

CONTENTS
1. PREFACE .........................................................................................................................................................3
2. SPECIFICATION.............................................................................................................................................4
2.1 Performance data of Swimming Pool Heat Pump Unit.................................................................................4
2.2 The dimensions for Swimming Pool Heat Pump Unit...................................................................................4
3. INSTALLATION AND CONNECTION.........................................................................................................5
3.1 Installation illustration..................................................................................................................................5
3.2 Swimming Pool Heat Pumps Location ..........................................................................................................6
3.3 How Close to Your Pool?...............................................................................................................................6
3.4 Swimming Pool Heat Pumps Plumbing.........................................................................................................7
3.5 Swimming Pool Heat Pumps Electrical Wiring..............................................................................................8
3.6 Initial start-up of the Unit .............................................................................................................................8
4. USAGE AND OPERATION ...........................................................................................................................9
4.1 Function of controller ...................................................................................................................................9
4.2 The controller usage ...................................................................................................................................11
4.2.A - Starting up and shutting down..........................................................................................................11
4.2.B - Modes switching ................................................................................................................................11
4.2.C - Temperature setting ..........................................................................................................................12
4.2.D - Clock setting ......................................................................................................................................13
4.2.E - Timer setting ......................................................................................................................................14
4.2.F - Cancel the timer setting .....................................................................................................................16
4.2.G - Keyboard lock ....................................................................................................................................17
4.2.H - Malfunction display ...........................................................................................................................17
4.3 Parameter table ..........................................................................................................................................18
4.4 Wiring diagram............................................................................................................................................18
5. MAINTENANCE AND INSPECTION.........................................................................................................19
5.1 Maintenance...............................................................................................................................................19
5.2 Trouble Shooting Guide ..............................................................................................................................20
6.1 Caution & Warning......................................................................................................................................21
6.2 Cable specification......................................................................................................................................22
6.4 Explosive view of the X19 unit....................................................................................................................23
6.5 Explosive view of the X 24 unit ...................................................................................................................24

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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 installation, 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 & Copper Nickle 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.

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2. SPECIFICATION
2.1 Performance data of Swimming Pool Heat Pump Unit
*** REFRIGERANT: R410A
Model
Oasis
X 19
Oasis
X 24
Performance Condition: Air 27°C / Water 26°C
Heating Capacity
kW
19.3
26.1
Running Current
A
13.0
17.5
Performance Condition: Air 19°C / Water 26°C
Heating Capacity
kW
16
21
Heating Power Input
kW
2.9
3.8
Cooling Capacity
kW
7.4
13
Cooling Power Input
kW
3.1
4.8
Running Current
A
13.0
17.5
Power Supply
V/Ph/Hz
240/1/50
240/1/50
Compressor Quantity
1
1
Compressor
Rotary
Scroll
Fan Quantity
1
1
Fan Power Input
W
150
150
Fan Rotate Speed
RPM
850
850
Fan Direction
Horizontal
Horizontal
Noise dB(A)
56
56
Water Connection
Mm
40
40
Water Flow Volume
l/m
100
116
Water Pressure Drop (max)
kPa
4.2
12
Unit Shipping Dimensions
(L/W/H)
Mm
1115 x 455 x 868
1115 x 455 x 868
Net / Shipping Weight
kg
83/98
108 / 123
Cooling capacity is based on 19 °C ambient air temperature and 26°C water temperature
2.2 The dimensions for Swimming Pool Heat Pump Unit

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3. INSTALLATION AND CONNECTION
3.1 Installation illustration
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.

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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.
3. INSTALLATION AND CONNECTION

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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 Temperatures, 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
3. INSTALLATION AND CONNECTION

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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 hook-up, 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 a D Curve 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 start-up 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 °C)
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 temperature is reached.
When the water-in temperature reach setting, the unit just shuts off. The unit will now automatically restart (if
your pool pump is running) when the pool temperature drops more than 2°C 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.

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4. USAGE AND OPERATION
4.1 Function of controller

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4.USAGE AND OPERATION
Symbol
Meaning
Function
Cooling
It is showed when the unit in cooling mode.
Heating
It is showed when the unit in heating mode and flashed
in defrosting.
Automatic
It is showed when the unit in automatic mode.
Electric –
heating
It is showed when the unit in electric-heating mode.
(Swimming pool unit without this display）
ON
Timer on
It is showed when the unit sets the timer on
OFF
Timer off
It is showed when the unit sets the timer off
IN
Inlet water
It is showed when the main display area gives the inlet
water temperature.(measured value)
OUT
Outlet water
It is showed when the AUX display area gives the outlet
water temperature.(measured value)
TEMP
Temperature
It is showed when the main/ AUX display area gives
temperature
VOL
Flow
It is showed when the main display area gives the water
flow value
Min
Minute
It is showed when the main display area gives minute value
°F
Fahrenheit
It is showed when the main/AUX display area
gives Fahrenheit value
°C
Centigrade
It is showed when the main/AUX display area
gives centigrade value
SET
Parameter
setting
It is showed when the parameter can be setted
Lock
It is showed when the keyboard is locked.

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4. USAGE AND OPERATION
4.2 The controller usage
4.2.A - Starting up and shutting down
In the off interface, press" " for 0.5s can start up the unit, and aux. display-area shows
water outlet temperature; In the running interface, press" " for 0.5s can shut down the unit
and aux. display-area shows “OFF”.
Attention: the operation of Starting up and shutting down can only be done in the main interface.
For example:
4.2.B - Modes switching
If it is cold/ heat unit, in the main interface, you can switch different modes of cooling,
heating, auto mode by pressing“”.
Attention：The modes switching is useless if the unit you buy is single-cold/ single-heat unit.
For example:

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4. USAGE AND OPERATION
4.2.C - Temperature setting
In the main interface，press “”or“”and the current mode target-temperature
flashes, then press “”to increase the temp.value, or press “”to decrease it.
Press “”can save setting parameter and back to the main interface；
Press“”cannot 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.
For example:

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4. USAGE AND OPERATION
4.2.D - Clock setting
In the main interface，press “”twice，Hours start to flashing ，and press “ ”
to increase value or press “”to decrease value，and press “”to save setting；
At the same time, minute start to flashing ，press “”to increase value or press “”to decrease
value，and press “”to save setting.
Press “”cannot save setting parameter and back to main interface.
Attention：If there is no operation for 5s system will remember parameter setting and back
to the main interface.
For example：

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4. USAGE AND OPERATION
4.2.E - Timer setting
In the main interface，press “”hold on 2 seconds and "on" is flashing, at this time,
you can set the timer on（means the unit timer is on），then press“”again and hold on
2 seconds and "off" is flashes you can set the timer off（means the unit timer is off）.
If you want to cancel the timer off, In the "off" flashing interface，press “”to cancel
Attention：
1) If there is no operation for 5s，system will remember clock setting and back to
the main interface.
2) By pressing " " till the "off" flashing, you can set the timer off without timer on.

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4. USAGE AND OPERATION

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4. USAGE AND OPERATION
4.2.F - Cancel the timer setting
Press“”for 2s and "ON" is flashing，at this time, press “”to cancel the setting
of timer on; It is the same way to cancel the setting of timer off.
For example：

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4. USAGE AND OPERATION
4.2.G - Keyboard lock
To avoid mis-operation, please lock the controller after parameter setting.
At the main interface, press “”for 5 seconds, the keyboard will be locked.
When the keyboard is locked, press“”for 5 seconds, the keyboard will be
unlocked.
NOTES: When the unit is in alarming state, the key lock can be removed automatically.
4.2.H - Malfunction display
There will be malfunction code showing on the controller screen when relative
malfunction occurs.
You can refer to the malfunction table to find out the failure cause and solution.
For example：

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4. USAGE AND OPERATION
4.3 Parameter table
Meaning
Default
Remark
Heating inlet target temp.
28°C
Adjustable
Cooling inlet target temp.
28°C
Adjustable
Auto inlet target temp.
27°C
Adjustable
The wire controller can display the temperature unit as "℉" or "℃" according to the unit
Model you bought.
4.4 Wiring diagram
Connection of PCB illustration
Connections explanation：
No.
Symbol
Meaning
No.
Symbol
Meaning
1
OUT1
Compressor of system1（220-230VAC）
13
DI06 GND
No use
2
OUT2
Water pump（220-230VAC
14
AI01 GND
Suction temp.(input)
3
OUT3
4way valve （220-230VAC）
15
AI02 GND
Water in temp.(input)
4
OUT4
High speed of fan motor（220-230VAC）
16
AI03 GND
Water out temp.(input)
5
OUT5
Low speed of fan motor（220-230VAC）
17
AI04 GND
Temp. Of coil ( input)
6
AC-N
Neutral wire
18
AI05 GND
Ambient temp.(input)
7
NET GND 12V
Wire controller
19
AI06 GND
Adjustable fan speed/Exhuast temp.
8
DI01 GND
On/Off Switch(input)(no use)
20
CN1
Primary transformer
9
DI02 GND
Flow switch (input)( normal close)
21
CN2
Secondary transformer
10
DI03 GND
Low pressure protect
22
CN6
Without use
11
DI04 GND
High pressure protect
23
CN19
Electronic expansion valve
12
DI05 GND
No use
24
5V CN16
GND
Flow meter

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5. MAINTENANCE AND INSPECTION
5.1 Maintenance
•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. You should check the unit thoroughly and fill the system with
water fully before using it for the first time.

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5. MAINTENANCE AND INSPECTION
5.2 Trouble Shooting Guide
Malfunction
Display
Cause
Solution
Water inlet temp. Sensor failure
P01
The water inlet temp. Sensor
is open or short circuit
Check or change the
water inlet temp. Sensor
Water outlet temp. Sensor failure
P02
The water outlet temp.
sensor is open or short circuit
Check or change the
water outlet temp.
Sensor
Ambient temp. Sensor failure
P04
The ambient temp. sensor is
open or short circuit
Check or change the
ambient temp. Sensor
Pipe temp. Sensor failure
P05
The pipe temp. sensor is
open or short circuit
Check or change the
pipe temp. Sensor
Evaporator temp.Sensor failure
P07
The evaporator temp. Sensor
is open or short circuit
Check or change the
evaporator temp. Sensor
High pressure protect
E01
The exhaust pressure is high,
high pressure switch action
Check high pressure
switch and cooling
return circuit
Low pressure protect
E02
The suction pressure is low,
Low pressure switch action
Check low pressure
switch and cooling
return circuit
Flow switch failure
E03
No water or litter water
in water system
Check the flow volume,
water pump is failure or
not
Temp. is too much different
between water-inlet and outlet
E06
Water flow volume not
enough, Water
system pressure difference is
small
Check the flow volume,
water
system is jammed or not
Antifreezing under cooling mode
E07
Water flow volume not
enough
Check the flow volume,
water
system is jammed or not
The primary anti-freezing protection
start.
E19
Ambient temperature is too
low
The second anti-freezing
protection start
E29
Ambient temperature is too
low
Communication failure
E08
Communication failure
between
remote wire controller and
main board
Check the wire
connection between
remote wire controller
and main board