OKU OKUFULL07 User manual

EN / DE / FR / ESP
Inverter Swimming Pool Heat Pump

1
Content
I. Application .............................................................................................. 4
II. Features .................................................................................................. 4
III. General information ............................................................................... 5
IV. Technical Parameter .............................................................................. 6
V. Dimension ............................................................................................... 7
VI. Installation instruction .......................................................................... 8
VII. Operation instruction ........................................................................... 12
VIII. Testing ................................................................................................... 14
I . Precautions ........................................................................................... 15
. Maintenance ......................................................................................... 17
I. Trouble shooting for common faults ................................................. 18
II. Appendix 1: Heating priority (Optional) ........................................... 20
III. Appendix 2: Heating priority (Optional) ........................................... 21
I. Wifi setting ........................................................................................... 23

2
Warning
a. Please read the following tips before installation, use and maintenance.
b. Installation, removal and maintenance must be carried by professional
personnel in accordance with the instructions.
c. Gas leakage test must be done before and after installation.
1. Use
a. It must be installed or removed by professionals, and it is forbidden to dismantle
and refit without permission.
b. Don’t put obstacles before the air inlet and outlet of the heat pump.
2. Installation
a. This product must be kept away from any source of fire.
b. The installation can’t be in a closed environment or indoors, and must be kept
well ventilated.
c. Vacuum completely before welding, field welding is not allowed, welding can
only be performed by professional personnel in professional maintenance
center.

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d. Installation must be stopped if any gas leakage, and the unit must be returned
to professional maintenance center.
. Transportation & Storage
a. Sealing is not allowed during transportation
b. Transporting goods at a constant speed is needed to avoid sudden acceleration
or sudden braking, so as to reduce the collision of goods.
c. The unit must be far away from any source of fire.
d. Storage place must be bright, wide, open and good ventilation, ventilation
equipment is required.
4. Maintenance Notice
a. If maintenance or scrap is required,contact an authorized service center nearby.
b. Qualification requirement
All operators who dispose gas must be qualified by valid certification which
issued by professional agency.
c. Please strictly comply with the requirement from manufacturer when
maintenance or filling gas. please refer to the technical service manual.

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Thank your choosing our product and your trust in our company. To help
you get maximum pleasure from using this product, please read this
instruction manual carefully and operate strictly according to the user
manual before starting the machine, otherwise the machine may be
damaged or cause you unnecessary harm.
I. Application
1- Set swimming pool water temp efficiently and economically to provide
you comfort and pleasure.
2- User may choose the model technical parameter according to
professional guide, this series of swimming pool heater has been
optimized in factory (refer to technical parameter table).
II. Features
1- High efficient titanium heat exchanger.
2- Sensitive and accurate temp control and water temp display.
3- High pressure and low pressure protection.
4- Exceeding low temp auto stop protection.
5- Temp control compulsory defrosting.
6- International brand compressor.
7- Easy installation and operation.

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III. General information
1.1. Contents:
After unpacking, please check if you have all the following components.
1.2. Operating conditions and range:
ITEMS RANGE
Operating range Air temp
-5℃43℃
Temp. setting heating
1840
The heat pump will have ideal performance in the operation
range Air 1525 .

1. . Advantages of different modes:
The heat pump has two modes: Smart and Silence. They have different advantages
under different conditions.
MODE RECOMMENDATION ADVANTAGES
Smart mode
As standard
Heating capacity: 20% to 100% capacity
Intelligent optimization
Fast heating
Silence mode
Use at night
Heating capacity: 20% to 80% capacity
Sound level: 3dB (A) lower than Smart mode.

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IV. Technical Parameter
Modell
OKUFULL07 OKUFULL09 OKUFULL1 OKUFULL17
OKUFULL21 OKUFULL24
Advised pool volume (m3) 15~30 20~40 30~50 35~65 45~80 55~90
Operating air temperature
()
-5~43
Performance Condition: Air 26°C, Water 26°C, Humidity 80%
Heating capacity (kW) 7.0 9.0 12.5 16.0 20.0 24.0
Performance Condition: Air 15°C, Water 26°C, Humidity 70%
Heating capacity (kW)
5.0 6.3 8.5 11.0 14.0 16.0
Rated input power
at air 15°C (kW)
0.21~1.04 0.28~1.28 0.38~1.73 0.52~2.34 0.61~3.04 0.68~3.47
Rated input current
at air 15°C (A)
0.91~4.52 1.22~5.56 1.65~7.52 2.26~10.2 2.65~13.21 2.96~15.08
Power supply 230V/1 Ph/50Hz
Advised water flux
(m³/h)
2~4 3~4 4~6 6.5~8.5 8~10 10~12
Water pipe in-out Spec
(mm)
50
Net Dimension LxWxH
(mm)
744×359×
648
864×359×
648
864×359×
648
954×359×
648
954×359×
748
954×429×
755
Heating capacity (kW)
42 46 49 60 68 68
Notice:
1. This product can work well under air temp 0+43, efficiency will not be
guaranteed out of this range. Please take into consideration that the pool heater
performance and parameters are different under various conditions.
2. Related parameters are subject to adjustment periodically for technical
improvement without further notice. For details please refer to nameplate.

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V. Dimension
 Above data is subject to modification without notice.
Note:
The picture above is the specification diagram of the pool heater, for technician’s
installation and layout reference only. The product is subject to adjustment
periodically for improvement without further notice.
UNIT=MM A B C D E F G H
MODEL
OKUFULL07
4 490 18 59 744 10 74 648
OKUFULL09
4 560 18 59 864 250 74 648
OKUFULL1
4 560 18 59 864 20 74 648
OKUFULL17
4 590 18 59 954 50 74 648
OKUFULL21
4 590 18 59 954 90 74 748
OKUFULL24
404 590 88 429 954 460 74 755

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VI. Installation instruction
1. Drawing for water pipes connection
NoticeThe drawing is just for demonstration, and layout of the pipes is only for reference.
2. Connecting your power wire
Note: please open the back panel for power connection. The operation is the same as above.
① Please use cross screwdriver to take off the 2 screws
at the bottom of the right side panel. Take off the lower
half of the panel.
② Unscrew the 3 screws on the cover of the electrical box.
③ Connect the terminals according to the electrical diagram.

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Note
Must be hard wired, no plug allowed.
The swimming pool heater must be earthed well.
. Electric Wiring Diagram
Options for protecting devices and cable specification
 Above data is subject to modification without notice.
Note: The above data is adapted to power cord ≤ 10m. If power cord is10m, wire
diameter must be increased. The signal cable can be extended to 50m at
most.
4. Installation instruction and requirement
The heat pump must be installed by a professional team. The users are not qualified
to install by themselves, otherwise the heat pump might be damaged and risky for
users’ safety.
MODEL
OKUFULL
07
OKUFULL
09
OKUFULL
1
OKUFULL
17
OKUFULL
21
OKUFULL
24
Breaker
Rated Current A 8.0 9.5 15.0 20.5 23.5 25.0
Rated Residual
Action Current mA
30 30 30 30 30 30
Fuse A 8.0 9.5 15.0 20.5 23.5 25.0
Power Cord  (mm
2
) 3×1.5 3×1.5 3×2.5 3×4 3×6 3×6
Signal cable (mm
2
) 3×0.5 3×0.5 3×0.5 3×0.5 3×0.5 3×0.5
For power suppl : 230V 50Hz
Distribution Box
(Customer prepare)
Power Cord
Swimming Pool Heat Pump Wiring Board
Power Suppl
230V 50Hz
Breaker
Fuse
Earthing

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A. Installation
1) The inlet and outlet water unions can’t bear the weight of soft pipes. The heat
pump must be connected with hard pipes!
2) In order to guarantee the heating efficiency, the water pipe length should be
≤10m between the pool and the heat pump.
B. Installation instruction
1) Location and size
The heat pump should be installed in a place with good ventilation
* MINIMUM DISTANCE
Filter
Water processor
Water switch

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2) The frame must be fixed by bolts (M10) to concrete foundation or brackets. The
concrete foundation must be solid and fastened; the bracket must be strong enough
antirust treated;
3) Please don’t stack substances that will block air flow near inlet or outlet area, and
there is no barrier within 50cm behind the main machine, or the efficiency of the
heater will be reduced or even stopped;
4) The machine needs an appended pump (Supplied by the user). The recommended
pump specification-flux: refer to Technical Parameter, Max. lift ≥10m;
5) When the machine is running, there will be condensation water discharged from
the bottom, please pay attention to it. Please hold the drainage nozzle (accessory)
into the hole and clip it well, and then connect a pipe to drain the condensation water
out.
CWiring
1 ) Connect to appropriate power supply, the voltage should comply with the rated
voltage of the products.
2) Earth the machine well.
3) Wiring must be handled by a professional technician according to the circuit
diagram.
4) Set leakage protector according to the local code for wiring (leakage operating
current ≤ 30mA).
5) The layout of power cable and signal cable should be orderly and not affecting
each other.
DSwitch on after finishing all wiring construction and
re-checking.

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VII. Operation instruction
Picture for keys
Symbol Designation Function
ON/OFF Power On/Off
Unlock Press it for 3 seconds to unlock/lock screen
Speed Select Smart/Silence mode
Up / Down Adjust set temperature
Note:
 Screen lock:
a. If no operation in 30 seconds, screen will be locked.
b. When HP is off, screen will be dark and “0%” will be displayed.
c. Press for 3 seconds to lock screen and it will be dark

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 Screen unlock:
a. Press for 3 seconds to unlock screen and it will be lit up.
b. Only after screen is unlocked, any other buttons can be functioned.
Heating
Heating capacit percentage
Wifi connection
Water inlet
Water outlet
1.Power On: Press for 3 seconds to light up screen, then press to power
on heat pump.
2.Adjust Set Temperature: When screen is unlocked, press or to display
or adjust the set temperature.
3.Smart/Silence mode selection:
Smart/Silenc
e
mode
Water inlet
temperature
Water outlet
temperature

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 Smart mode as default will be activated when heat pump is on, and screen shows
.
 Press to enter Silence mode, and screen shows .
(Suggestion: select Smart mode for initial heating.)
4.Defrosting
a. Auto Defrosting: When heat pump is defrosting, will be flashing. After
defrosting, will stop flashing.
b. Compulsory Defrosting: When heat pump is heating, press and
together for 5 seconds to start compulsory defrosting, and will be flashing.
After defrosting, will stop flashing.
(Note: Compulsory defrosting intervals should be more than 30 minutes and the
compressor should run for more than 10 minutes.)
5.Wifi setting
Please kindly check the last page.
VIII. Testing
1. Inspection before use
A. Check installation of the whole machine and the pipe connections according to
the pipe connecting drawing;
B. Check the electric wiring according to the electric wiring diagram and earthing
connection;

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C. Make sure that the main machine power switch is off;
D. Check the temperature setting;
E. Check the air inlet and outlet.
2. Trial
A. The user must “Start the Pump before the Machine, and Turn off the Machine
before the Pump”, or the machine will be damaged;
B. The user should start the pump, check for any leakage of water; and then set
suitable temperature in the thermostat, and then switch on power supply;
C. In order to protect the swimming pool heater, the machine is equipped with a
time lag starting function, when starting the machine, the blower will run 1
minutes earlier than the compressor;
D. After the swimming pool heater starts up, check for any abnormal noise from
the machine.
IX. Precautions
1. Attention
A. Set proper temperature in order to get comfortable water temperature to avoid
overheating or overcooling;
B. Please don’t stack substances that can block air flow near inlet or outlet area, or
the efficiency of the heater will be reduced or even stopped;
C. Please don’t put hands into outlet of the swimming pool heater, and don’t
remove the screen of the fan at any time;

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D. If there are abnormal conditions such as noise, smell, smoke and electrical
leakage, please switch off the machine immediately and contact the local dealer.
Don’t try to repair it yourself;
E. Don’t use or stock combustible gas or liquid such as thinners, paint and fuel to
avoid fire;
F. In order to optimize the heating effect, please install heat preservation
insulation on pipes between swimming pool and the heater. During running
period of the swimming pool heater, please use a recommended cover on the
swimming pool;
G. Connecting pipes of the swimming pool and the heater should be ≤10m, or the
heating effect of the heater cannot be ensured;
H. This series of machines can achieve high efficiency under air temperature of
+15℃+25℃.
2. Safety
A. Please keep the main power supply switch far away from the children;
B. When a power cut happens during running, and later the power is restored, the
heater will start up automatically. So please switch off the power supply when
there is a power cut, and reset temp when power is restored;
C. Please switch off the main power supply in lightning and storm weather to
prevent from machine damage that caused by lightning;
D. If the machine is stopped for a long time, please cut off the power supply and
drain water clear of the machine by opening the tap of inlet pipe.

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X. Maintenance
A In winter season when you don’t swim:
1. Cut off power supply to prevent any machine damage
2. Drain water clear of the machine.
3. Cover the machine body when not in use.
B Please clean this machine with household detergents or clean water,
NEVER use gasoline, thinners or any similar fuel.
C Check bolts, cables and connections regularly.
“Cut off” power suppl of the heater before
cleaning, examination and repairing
Caution: Danger
of electric shock
!!Important:
Unscrew the water nozzle of inlet pipe
to let the water flow out.
When the water in machine freezes in winter
season, the titanium heat exchanger may be
damaged.

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XI. Trouble shooting for common faults
FAILURE REASON SOLUTION
Heat pump
doesn’t run
No power Wait until the power recovers
Power switch is off Switch on the power
Fuse burned Check and change the fuse
The breaker is off Check and turn on the breaker
Fan running but
with insufficient
heating
evaporator blocked Remove the obstacles
Air outlet blocked Remove the obstacles
3 minutes start delay Wait patiently
Display normal,
but no heating
Set temp. too low Set proper heating temp.
3 minutes start delay Wait patiently
If above solutions don’t work, please contact your installer with detailed information
and your model number. Don’t try to repair it yourself.
Note: If the following conditions happen, please stop the machine
immediately, and cut off the power supply immediately, then
contact your dealer:
aInaccurate switch action;
bThe fuse is frequently broken or leakage circuit breaker jumped.