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53 

 

 CN-HT1

 CN-HT2

 CN-HOT

 CN-HPS

 CN-TH3

 CN-DIS

 CN-RY1

 CN-PSW1

 CN-V1

CN-EV2

CN-TH2

CN-FM1
CN-FM2

CN-TH1 CN-EV

 

 
 
 

54 

 

CN-BLK

CN-WHT

AC-BLK

FG1

FG2

CN-ACL

CN-ACN

 

 

DCP-IN

DCN-OUT

DCN-IN

FG201

AC-C

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 

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  There should not be any heat source or steam 

near the unit. 

  A place where air circulation in the room is good. 

  A place where drainage can be easily done. 

  A place where noise prevention is taken into 

consideration. 

  Do not install the unit near the door way. 

  Ensure the spaces indicated by arrows from the 

wall, ceiling, fence or other obstacles. 

  Recommended installation height for indoor unit 

shall be at least 800 mm. 

  Must install on a vertical wall. 

  When install electrical equipment at wooden 

building of metal lath or wire lath, according to 
electrical facility technical standard, no electrical 
contact between equipment and building is 
allowed. Insulator must be installed in between. 

  Do not install the unit at outdoor. This is designed 

for indoor installation only. 

 

100 mm

or more

100 mm

or more

100 mm

or more

Required space for installation

 

The mounting wall is strong and solid enough to 
prevent it from vibration. 

 

(Unit in mm)

5

5

200

756

160

70

Indoor Unit
body

≥1556 from
ground

Installation
plate 1

Installation
plate 4

Bolt -
size M8

Wall

Wall

More than 375 More than 375

 

The centre of installation plate should be at more than 
375 mm at right and left of the wall. 
The distance from installation plate edge to ground 
should more than 1556 mm. 

  Always mount the installation plate horizontally 

plate by aligning the marking thread and using a 
level gauge. 

  Mount the installation plate on the wall with 6 sets 

of plug, bolt and washer (all non-supply) with size 
M8. 

1.  Insert the piping sleeve to the hole. 
2.  Fix the bushing to the sleeve. 
3.  Cut the sleeve until it extrudes about 15 mm 

from the wall. 

 

 

When the wall is hollow, please be sure to use the sleeve 
for tube assembly to prevent dangers caused by mice 
biting the connection cable. 

 

4.  Finish by sealing the sleeve with putty or 

caulking compound at the final stage. 

 

15 mm

Putty or caulking compound

ø70 mm through hole

Indoor

Outdoor

Sleeve for tube

assembly

Approx. 5 - 7 mm

Bushing for tube assembly

Wall

 

 

This section is for authorized and licensed electrician/water 
system installer only. Work behind the front plate secured by 
screws must only be carried out under supervision of qualified 
contractor, installation engineer or service person. 

 
Please follow the steps below for take out front plate. 
Before removing the front plate of indoor unit, always 
switch off all power supply (i.e. indoor unit power 
supply, heater power supply and Tank Unit power 
supply). 
1.  Remove the 2 mounting screws which located at 

bottom of the front plate. 

56 

2.  Gently pull the lower section of the front plate 

towards you to remove the front plate from left and 
right hooks. 

3.  Hold the left edge and right edge of front plate to 

lift up front plate from hooks. 

 

Hook

Lift up

Screws

 

1.  Engage the slots on the indoor unit to the hooks of 

installation plate 

1

. Ensure the hooks are properly 

seated on the installation plate by moving it left 
and right. 

2.  Fix the screws 

5

 to the holes on the hooks of 

installation plate 

4

, as illustrated below. 

 

Installation plate

Indoor unit back

Slots

Wall

Hooks

Installation plate

Screws

Note: Do not lift the

Indoor Unit by holding the

refrigerant and water pipes

to prevent damage of the

pipes.

1

4

5

 

  The minimum requirement of water in the system 

is 50 litres. If this value could not be achieved, 
please install additional buffer tank (field supply). 

  Water inlet and water outlet in indoor unit are used 

for connection to water circuit. Please request a 
licensed technician to install this water circuit. 

  This water circuit must comply with all relevant 

European and national regulations, i.e. IEC/EN 
61770. 

  Be careful not to deform the piping to excessive 

force when doing piping connection job. 

  Use Rp 1 ¼" nut for both water inlet and outlet 

connection and clean all pipings with tap water 
before connecting to the indoor unit. 

  Cover the pipe end to prevent dirt and dust when 

inserting it through a wall. 

  Choose proper sealer which can withstand the 

pressures and temperatures of the system. 

  If an existing tank is to be connected to this indoor 

unit, ensure the pipes are clean before water pipe 
installation is carried out. 

  Be sure to use two spanners to tighten the 

connection. Tighten the nuts with torque wrench: 
117.6N•m. 

 

Torque wrench

Indoor unit

Spanner

 

  If non-brass metallic piping is used for installation, 

make sure to insulate the pipes to prevent 
galvanic corrosion. 

  Make sure to insulate the water circuit pipes to 

prevent reduction of heating capacity. 

  After installation, check the water leakage 

condition in connection area during test run. 

 

Water Inlet

Water Outlet

 

 

Do not over tighten, over tightening cause water leakage. 

1  Please make flare after inserting flare nut (located 

at joint portion of tube assembly) onto the copper 
pipe. (In case of using long piping) 

2  Do not use pipe wrench to open refrigerant piping. 

Flare nut may be broken and cause leakage. Use 
proper spanner or ring wrench. 

3  Connect the piping: 

  Align the center of piping and sufficiently 

tighten the flare nut with fingers. 

  Be sure to use two spanners to tighten the 

connection. 
Further tighten the flare nut with torque 
wrench in specified torque as stated in the 
table.