background image

The remote controller 
must slide in the holder, 
in the direction as 
shown in the 

fi

 gure, 

until it hooks at the 
lower end of the remote 
controller holder.

Screw (2 pieces)

Remote 
Controller 
Holder

Remote 
Controller

Outer dia. 

of pipe

6.35 (1/4")

9.52 (3/8")

12.70 (1/2")
15.88 (5/8")

6.35 (1/4")

9.52 (3/8")
12.7 (1/2")

Valve 

head cap

Torque N·m

(kgf 

·

 cm)

14.0 – 18.0 (140 – 180)

33.0 – 42.0 (330 – 420)
50.0 – 62.0 (500 – 620)
63.0 – 77.0 (630 – 770)

19.6 – 24.5 (200 – 250)

19.6 – 24.5 (200 – 250)
29.4 – 34.3 (300 – 350)

12.3 – 15.7 (125 – 160)

Small dia. side

Large dia. side

Valve core cap

Small dia. side

Large dia. side

2.7 Pipe connection

 

Sealing the refrigerating pipe

Cover pipe connection section using flare insulation material and 
wrap a tape around it, leaving no gaps.

2.8 Connection of the connecting cord

(1)  Remove the cover of the electric box.
(2)  Connect the connecting cords.
(3)  Assemble the cover of electric box.

3.  Checking of drawing drain hose

(1)  Connect the separate drain hose to the drain hose that is attached to the indoor unit.
(2)  For a smooth flow of the condensed water, the drain hose should be inclined as shown in the figure below.

6.  Installation of wireless remote controller (Optional)

•  The remote controller can be placed in its holder which is 

fi

 xed 

on a wall or a beam.

•  To operate the remote controller at its holder, please ensure 

that the unit can receive signal transmitted from the controller 
at the place where the holder is to be 

fi

 xed. The unit will beep 

when signal is received from 
the remote controller. The signal 
transmission is weaken by the 

fl

 uorescent light. Therefore, 

during the installation of the 
remote controller holder, please 
switch on the light, even during 
day time, to determine the 
mounting location of the holder.

7.  Setting of switches High static-

pressure switch

(Full duct type and semi duct type)
•  For full duct type, set the static-pressure 

switch to HIGH STATIC-PRESSURE.

•  For semi dust type, set the static pressure 

switch to MED.

•  If not set to HIGH or MED, there will be 

reduction of cooling and heating capacities.
(At the time of delivery, the switch is set as 
"NORMAL".)

8.  When connecting the HA system / Dry Contact / H-Link (Optional)

•  A separately purchased HA Connection Cord is required to get connected to the HA-System.
•  To connect to H-link, a separately purchased RAC adapter is required.
•  To install the wiring, the electrical box cover must be opened. (As for HA system/Dry contact, connect to CN9 

whereas for the RAC adapter, connect to CN1101).

•  The connection cord and power cables are to be arranged and tied up as per the diagram as shown below.
•  Please refer to the respective user manuals of the HA-System and the RAC adapter, for further details.
•  Please refer to the user manual for instructions on the removal and installation of the electrical box.
•  For ordering all optional parts, please refer to the catalogue for part number.

9.  Protection of lead wire

Wrap aluminum tape around PVC tube 
between electric box and indoor unit 
(cord band).

10. Operation test

•  Please ensure that the air conditioner is in normal operating condition during the operation test.
•  Explain to your customer the proper operation procedures as described in the user's manual.
•  If the indoor unit does not operate, check to see that the connections are correct.

 

Installation of display panel (Optional)

•  Select an installation position on ceiling or wall 

where there is no obstacle to interrupt signal 
reception.

•  Loosen the screws of panel installation plate so 

that bracket can be slightly moved.

•  Match the display panel to panel installation plate 

so the 

fi

 xing claws on the panel are securely 

hooked.

•  Match brackets to the opening on ceiling or wall 

and tighten screws until bracket is 

fi

 rmly secured 

to ceiling material.

•  Install the panel cover so inside claws are 

securely hooked to the panel installation plate.

•  Conduct the indoor unit side housing of display 

panel cord to the electric box of the indoor unit 
and connect it with the housing at the side of the 
unit.

4.  Checking procedure after installation
4.1

 Con

fi

 rm the smooth 

fl

 ow of water from the drain hose by pouring some water into the evaporating pan.

4.2

  Use 'bushing' to arrange all the refrigerating pipes and sealer that belong to the pipe set, as shown in 

fi

 gures 4-1 and 4-2.

5.  Installation of wired remote controller (Optional)

(a)  Connection to the electrical box:

•  Remove the cover of electric box
•  Connect the connector of wired remote controller to CN1102
•  Assemble back the cover of electrical box

(b)  Wiring installation for wired remote controller (2 methods);

•  Wired remote controller casing can be opened by pressing the 

slots with minus screw driver (see below diagram)

• Decide the 

fi

 xing location of remote controller so that the length of wire shall be within 5 meters.

4.3

  Wind the inadhesive vinyl tape which is belonged from the pipe set around the refrigerating pipes and the connecting 

cord.

4.4

  Leakage checking of refrigerant at the coupling by gas leak detector or soapsuds, as shown in Fig. 4-3.

4.5

  Checking of evaporator coldness (cooling operation).

4.6

  Checking of warm wind from condenser (cooling operation).

•  Please be careful when bending the copper pipe.
•  Screw in the screws manually while adjusting the center. After that, use a torque wrench to tighten the 

connection.

Use gas leakage detector to check if leakage occurs when flare nut is connected 
as shown in the figure.

If gas leakage occurs, tighten the connection to stop the leakage. (Use the 
detector provided for R410A).

In case of removing flare nut of an indoor unit, first remove a nut of small diameter side, or a seal cap of 
big diameter side will fly out. Free from water into the piping when working.

CAUTION

!

Flare nut

Torque wrench



 Flare insulation

Margin of 2~4mm

GRN + YEL

After remove the band 
and put the connecting 
cords and fix with screw.

Connecting cable

Connect the earth cord 
(Green-and-yellow)

Insert and fix the 
connecting cords 
with screw

Refrigerating 
pipes

Drain 
hose

Drain 
hose

Air pocket

Ditch

WALL

Sleeve of 
protection 
pipe

Seal with 
putty

2~5mm

Protection 

pipe

Refrigerating pipes

Connecting cord

Protection pipe

Top casing

Bottom casing

Drain hose

Sealer

†

 

 Wired 
remote 
controller

Bushing for refrigerating pipes

Seal with 

putty

Indoor

Outdoor

Condensed 
water pond

Condensed 

water pond

Connecting cable

40mm

50mm

Strip wires

10mm

Detail of cutting the connecting cord

‚

 Binder (2) : Bind so there is no gap.

Wrench

Gas leakage inspection

•  This appliance must be earthed.
•  Do not make any connection in the middle 

of the connecting cable. It may cause 
overheating, smoke emission, or 

fi

 re.

Please ensure the smooth flow of condensed water of the 
indoor unit during installation. (Carelessness may result in water 
leakage.)

•  Do not cut the provided wire. Excess wire should be properly wound and 

fi

 tted at safe place.

•  Do not join the wire with additional wire.

WARNING

CAUTION

CAUTION

!

!

!

Wall penetration and installation of 
protection pipe

•  Drill a ø65mm hole on wall which is slightly 

tilted towards the outdoor side. Drill the wall at 
a small angle.

•  Cut the protection pipe according to the wall 

thickness.

•  Empty gap in the sleeve of protection pipe 

should be completely sealed with putty to avoid 
dripping of rain water into the room.

Be sure that the hose is not 
loosely connected or bent.

CAUTION

!

Be sure that the wire is not in 
contact with any metal in the 
wall. Please use the protection 
pipe as wire passing through 
the hollow part of the wall so 
as to prevent the possibility of 
damaged by mouse.

CAUTION

!

Good

Bad

Bad

Bad

Bad

Fig. 4-1

Fig. 4-2

Fig. 4-3

Trial run should be conducted on one unit at a time to check for incorrect wiring of connecting cord.

CAUTION

!

Lead wires (4 strands) 
are inserted through and 
fastened via a rib-clip

Location of wall 
mounting screw

Lead wires 
connector

Lead wires 
connector

Lead wires 
connector

Lead wires 
(4 strands)

Wires

Wires

Wires

W

all mounting screws (2 pieces 

to be used) (provided)

Wall 
mounting 
screws 
(2 pieces) 
(provided)

Opening on ceiling or wall

Panel installation plate

Panel cover

Display panel

Bracket

Bracket

Panel cover

Ceiling or wall 

(Thickness 7~18mm)

Above 

50mm

Bracket

Display panel 

Claw
Screw

CROSS SECTION

AAA size 
Battery

Plug

Static Pressure switch (SW504)

High         Medium         Normal

…

 Aluminum tape (large)

Electric box

RAC Adapter

Wired remote controller

Electrical box

Power cable

Binder

Connection cord

PVC tube

CN1102

Wall recessed wiring installation (Optional)

Wiring installation illustrations

Inside top wiring installation (Alternative)

2. When connecting wires from the inside top portion of 

the top casing:
•  Break off a perforated aperture located at the top 

portion of the bottom casing by using a nipper. 
Smoothen the aperture by using a nipper.

•  Fix the bottom casing to the wall by provided screw.
•  Connect the wires to the lead wires connector.
•  Mount the wires through the provided slot on top 

casing.

•  Assemble the top casing to the 

fi

 xed bottom casing. 

(Refer to the illustration below for installation details) 

1. When connecting the wires via the wall's recessed 

slot:
•  Fix the bottom casing to the wall by the screw 

provided.

•  Assemble the top casing to the 

fi

 xed bottom casing. 

(Refer to the illustration below for installation 
details.)

Wires

CN1101

CN9

INS RAD-18-25-35-50QPB (EN)   4

INS RAD-18-25-35-50QPB (EN)   4

12/19/14   9:42 AM

12/19/14   9:42 AM

Summary of Contents for RAD-18QPB

Page 1: ...rom customer before installation WARNING l The unit should be mounted at stable non vibratory location which can provide full support to the unit WARNING l No nearby heat source and no obstruction near the air outlet is allowed l The clearance distances from top right and left are specified in figure below l The location must be convenient for water drainage and pipe connection with the outdoor un...

Page 2: ...using 7 screws CAUTION Be sure to install the indoor unit level If the indoor unit is inclined water may leak If space between bottom surfaces of indoor unit and ceiling is not correct there may be a gap between grille and ceiling surface with consequent leakage of condensed water In case of wooden frame In case of steel frame INSTALLATION OF SEMI DUCT TYPE Opening on ceiling 96 Flexible duct Flex...

Page 3: ... between bottom surfaces of ceiling and indoor unit is 58mm Select the indoor unit position fixing direction of air outlet so that cool hot air reaches all the room Do not allow any obstacle to block air flow within 1m of suction grille Use M10 bolt for suspension Opening of ceiling and suspension bolt position are as shown on the left Before installing the indoor unit prepare opening 960mm x 520m...

Page 4: ...roller casing can be opened by pressing the slots with minus screw driver see below diagram Decide the fixing location of remote controller so that the length of wire shall be within 5 meters 4 3 Wind the inadhesive vinyl tape which is belonged from the pipe set around the refrigerating pipes and the connecting cord 4 4 Leakage checking of refrigerant at the coupling by gas leak detector or soapsu...

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