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18.1

 

To Remove Front Plate ............................. 203

 

18.2

 

To Remove Pressure Gauge ..................... 203

 

18.3

 

To Open Control Board Cover ................... 204

 

18.4

 

To Remove Control Panel ......................... 204

 

18.5

 

To Remove RCCB ..................................... 205

 

18.6

 

To Remove Transformer and Electronic 
Controller Board ......................................... 205

 

18.7

 

To Open Control Board ............................. 206

 

18.8

 

To Remove Pressure Relief Valve, Air Purge 
Valve and Flow Sensor .............................. 206

 

18.9

 

To Remove Water Pump and Bottle Complete
 .................................................................. 207

 

18.10

 

To Remove Filter ....................................... 208

 

 

 

19.1

 

Operation Characteristics .......................... 209

 

19.2

 

Heating Capacity Table ............................. 233

 

19.3

 

Cooling Capacity Table ............................. 234

 

 

 

20.1

 

Indoor Unit ................................................. 235

 

20.2

 

Outdoor Unit .............................................. 240

 

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  Read the following “SAFETY PRECAUTIONS” carefully before installation. 

  Electrical work must be installed by a licensed electrician. Be sure to use the correct rating and main circuit for 

the model to be installed. 

  The caution items stated here must be followed because these important contents are related to safety. The 

meaning of each indication used is as below. Incorrect installation due to ignoring of the instruction will cause 
harm or damage, and the seriousness is classified by the following indications. 

  Please leave this installation manual with the unit after installation. 
 

This indication shows the possibility of causing death or serious injury. 

CAUTION 

This indication shows the possibility of causing injury or damage to properties only. 

 

The items to be followed are classified by the symbols: 

 

Symbol with white background denotes item that is PROHIBITED from doing. 

Symbol with dark background denotes item that must be carried out. 

 

 

Carry out test run to confirm that no abnormality occurs after the installation. Then, explain to user the operation, care and 
maintenance as stated in instructions. Please remind the customer to keep the operating instructions for future reference. 

 

1. 

Do not use unspecified cord, modified cord, joint cord or extension cord for for power supply cord. Do not share the single outlet with 
other electrical appliances. Poor contact, poor insulation or over current will cause electrical shock or fire. 

2.  Do not tie up the power supply cord into a bundle by band. Abnormal temperature rise on power supply cord may happen. 

3.  Keep plastic bag (packaging material) away from small children, it may cause suffocation. 

4.  Do not use pipe wrench to install refrigerant piping. It might deform the piping and cause the unit to malfunction. 

5.  Do not purchase unauthorized electrical parts for installation, service, maintenance and etc.. They might cause electrical shock or fire.

6. 

Do not modify the wiring of Indoor Unit for installation of other components (i.e. heater, etc.). Overloaded wiring or wire connection 
points may cause electrical shock or fire. 

 

7.  Do not add or replace refrigerant other than specified type. It may cause product damage, burst and injury etc. 

 

8. 

Do not use joint cable for Indoor / Outdoor Unit connection cable. Use specified Indoor / Outdoor Unit connection cable, refer to 
instruction CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for Indoor / Outdoor Unit connection. Clamp the cable 
so that no external force will be acted on the terminal. If connection or fixing is not perfect, it will cause heat up or fire at the 
connection. 

9. 

For electrical work, follow local wiring standard, regulation and this installation instruction. An independent circuit and single outlet 
must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock or fire. 

10. 

For water circuit installation work, follow to relevant European and national regulations (including EN61770) and local plumbing and 
building regulation codes. 

11. 

Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water leakage, electrical shock or 
fire. 

 

12. 

 

This is a R410A model, when connecting the piping, do not use any existing (R22) pipes and flare nuts. Using such same may 
cause abnormally high pressure in the refrigeration cycle (piping), and possibly result in explosion and injury. Use only R410A 
refrigerant. 

 

Thickness or copper pipes used with R410A must be 0.8 mm or more. Never use copper pipes thinner than 0.8 mm. 

 

It is desirable that the amount of residual oil is less than 40mg/10m.

 

13. 

When install or relocate Indoor Unit, do not let any substance other than the specified refrigerant, e.g. air etc. mix into refrigerant cycle 
(piping). 
Mixing of air etc. will cause abnormal high pressure in refrigeration cycle and result in explosion, injury etc. 

 

14.  Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical shock or fire. 

 

15. 

Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or installation is not 
properly done, the set will drop and cause injury. 

 

16. 

This equipment is strongly recommended to be installed with Residual Current Device (RCD) on-site according to the respective 
national wiring rules or country-specific safety measures in terms of residual current. 

 

5 

17. 

During installation, install the refrigerant piping properly before run the compressor. Operation of compressor without fixing 
refrigeration piping and valves at opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in 
explosion, injury etc. 

 

18. 

During pump down operation, stop the compressor before remove the refrigeration piping. Removal of refrigerant piping while 
compressor is operating and valves are opened will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in 
explosion, injury etc. 

 

19. 

Tighten the flare nut with torque wrench according to specified method. If the flare nut is over tightened, after a long period, the flare 
may break and cause refrigerant gas leakage. 

 

20. 

After completion of installation, confirm there is no leakage of refrigerant gas. It may generate toxic gas when the refrigerant contacts 
with fire. 

 

21. 

Ventilate the room if there is refrigerant gas leakage during operation. Extinguish all fire sources if present. It may cause toxic gas 
when the refrigerant contacts with fire. 

 

22.  Only use the supplied or specified installation parts, else, it may cause unit vibrate loose, water leakage, electrical shock or fire. 

 

23. 

The unit is only for use in closed water system. Utilization in an open water circuit may lead to excessive corrosion of water piping and 
risk of incubating bacteria colonies, particularly Legionella, in water. 

 

24.  If there is any doubt about the installation procedure or operation, always contact the authorized dealer for advice and information. 

 

25.  Select a location where in case of water leakage, the leakage will not cause damage to other properties. 

 

26. 

When installing electrical equipment at wooden building of metal lath or wire lath, in accordance with electrical facility standard, no 
electrical contact between equipment and building is allowed. Insulator must be installed in between. 

 

27. 

Any work carried out on the Indoor Unit after removing any panels which is secured by screws, must be carried out under the 
supervision of authorized dealer and licensed installation contractor. 

 

28. 

This unit must be properly earthed. The electrical earth must not be connected to a gas pipe, water pipe, the earth of lightening rod or 
a telephone. Otherwise there is a danger of electrical shock in the event of an insulation breakdown or electrical earth fault in the 
outdoor unit. 

 

 

1. 

Do not install the Indoor Unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding 
of the unit, it may cause fire. 

2. 

Do not release refrigerant during piping work for installation, re-installation and during repairing a refrigeration parts. Take care of the 
liquid refrigerant, it may cause frostbite. 

3.  Do not install this appliance in a laundry room or other high humidity location. This condition will cause rust and damage to the unit. 

4.  Make sure the insulation of power supply cord does not contact hot part (i.e. refrigerant piping) to prevent from insulation failure (melt).

5. 

Do not apply excessive force to water pipes that may damage the pipes. If water leakage occurs, it will cause flooding and damage to 
other properties. 

6.  Select an installation location which is easy for maintenance. 

 

7. 

Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage 
the furniture. 

 

8. 

Power supply connection to Indoor Unit. 
 

Power supply point should be in easily accessible place for power disconnection in case of emergency. 

 

Must follow local national wiring standard, regulation and this installation instruction. 

 

Strongly recommended to make permanent connection to a circuit breaker. 
- 

Power supply 1: Use approved 30A 2-poles circuit breaker with a minimum contact gap of 3.0 mm. 

- 

Power supply 2: Use approved 30A 2-poles circuit breaker with a minimum contact gap of 3.0 mm. 

 

9.  Ensure the correct polarity is maintained throughout all wiring. Otherwise, it will cause electrical shock or fire. 

 

10. 

After installation, check the water leakage condition in connection area during test run. If leakage occurs, it will cause damage to other 
properties. 

 

11. 

Installation work. 
It may need two or more people to carry out the installation work. The weight of Indoor Unit might cause injury if carried by one 
person. 

 

 
 
 
 
 

6 

 

Item 

Unit 

Outdoor Unit 

Performance Test Condition 

EN 14511 

Cooling Capacity 

Condition 

(Ambient/Water)

A35W7 

kW 3.20 

BTU/h 10900 

kcal/h 2750 

Cooling EER 

W/W 3.08 

kcal/hW 2.64 

Heating Capacity 

Condition 

(Ambient/Water)

A7W35 A2W35 

kW 3.20 

3.20 

BTU/h 10900 

10900 

kcal/h 2750 

2750 

Heating COP 

W/W 5.00 

3.56 

kcal/hW 4.30 

3.06 

Heating ErP 

 
 
 
 
 
 

Low Temperature Application (W35) 

Warmer Average  Colder 

Application Climate 

Pdesign kW 

3.0 

4.0 

3.0 

Tbivalent / TOL 

°C 

2 / 2 

-10 / -10 

-20 / -22 

SCOP / ns 

(W/W) / % 

6.18 / 244 

4.96 / 195 

3.82 / 150 

Annual Consumption 

kWh 

649 

1667 

1938 

Class  

A++ 

A++ 

A++ 

Medium Temperature Application (W55) 

Warmer Average  Colder 

Application Climate 

Pdesign kW 

3.0 

3.0 

2.0 

Tbivalent / TOL 

°C 

2 / 2 

-10 / -10 

-20 / -22 

SCOP / ns 

(W/W) / % 

4.15 / 163 

3.32 / 130 

2.65 / 103 

Annual Consumption 

kWh 

965 

1865 

1862 

Class  

A++ 

A++ 

A+ 

Noise Level 

Condition 

(Ambient/Water)

A35W7 A7W35 A2W35 

dB (A) 

Cooling: 47 

Heating: 47 

- 

Power Level dB 

Cooling: 65 

Heating: 64 

- 

Air Flow 

m

3

/min (ft

3

/min) 

Cooling: 33.9 (1200) 
Heating: 28.9 (1020) 

Refrigeration Control Device 

 

Expansion Valve 

Refrigeration Oil 

cm

3

 FV50S 

(450) 

Refrigerant (R410A) 

kg (oz) 

1.20 (42.4) 

F-GAS 

GWP 2088 

CO2eq (ton) (Precharged / Maximum) 

2.506 / 2.714 

Dimension 

Height 

mm (inch) 

622 (24-1/2) 

Width 

mm (inch) 

824 (32-15/32) 

Depth 

mm (inch) 

298 (11-24/32) 

Net Weight 

kg (lbs) 

39 (86) 

Pipe Diameter 

Liquid 

mm (inch) 

6.35 (1/4) 

Gas 

mm (inch) 

12.70 (1/2) 

Standard Length 

m (ft) 

7 (23.0) 

Pipe Length Range 

m (ft) 

3 (9.8) ~ 15 (49.2) 

I/D & O/D Height Difference 

m (ft) 

5.0 (16.4) 

Additional Gas Amount 

g/m (oz/ft) 

20 (0.2)