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Installation
Connecting the Refrigerating Pipe other than at the back
of the Indoor Unit
Insert the pipe through the wall hole.
The upper part of the Indoor unit is hung on the hanger.
The projection at the lower part of the Indoor unit is
hooked onto the hanger.
After the refrigerating pipe is connected, cover the pipe
connection with the auxiliary insulation sheet, which has
been removed on earlier stage, with its split line on the top.
Wrap the tape without any space.
Mounting Plate
Refrigerating
Pipe
Mounting
Plate
Projection of
Protection
the indoor unit
Drain
Pipe
F connecting
hose
cord
Fresh air in
exhaust hose
Connecting the Refrigerating Pipe at the back of the
Indoor Unit
Projection of the
Remove the auxiliary insulation material
indoor unit
sheet which is attached to the pipe
insulation. (Keep the removed auxiliary
insulation material sheet because it will
be reused after pipe connection.)
Carry out refrigerating pipe forming.
Connect fresh air in exhaust hose.
Hang the indoor unit on the mounting plate.
Place the temporary stand under the right
Approx. 15mm
rear surface of the indoor unit to lift the lower
side of the unit by approximately 15cm.
C o n n e c t t h e r e f r i g e r a t i n g p i p e . ( R e f e r t o " P i p e
Connection" on Page 10)
Wrap the pipe connection with tape so that there is no
gap between heat insulation sheet.
Insert the drain hose and fresh air in exhaust hose into
the wall hole. Especially in case of horizontally backward
piping, insert the hose following the explanation below.
Connect the connecting cord. (Refer to "Connection of
Power Cord" on Page 12)
Form connecting cord and refrigerating pipe and put them
in the space on the lower side of the rear surface of the
indoor unit. Fix them with the pipe support.
Remove the temporary stand under the indoor unit and fit
the lower part of the indoor unit in the fixing tab on the
mounting plate.
Fresh air in
exhaust hose
Protection pipe
Drain hose
F connecting cord
Pull this to the front
Heat insulation pipe
during the connection
Connecting part
of refrigerating
F connecting cord
pipe to ease task.
Pipe support
Pipe support can be installed to whichever side
o f t h e i n s t a l l a t i o n p o i n t s . H o w e v e r , i t i s
recommended to attach it on the left side
viewing from the front of the indoor unit.
Do not over tighten vinyl tape on pipe heat
insulation sheet. Do not over tighten to avoid loss
of heat insulating effect and dew condensation.
Pull the lower part of the indoor unit towards
you and confirm that the tab of the indoor
CAUTION
unit is fit in the installation plate. If the tab is
not fitted in securely, vibration of the indoor
unit becomes larger.
1
Remove of Air from the Pipe and Gas Leakage Inspection
As shown in figure on the right, remove the cap
of valve head and valve core and then connect
1
them to the vacuum pump and manifold valve.
Fully tighten the "Hi" shuttle of the manifold valve
and completely unscrew the "Lo" shuttle. Run
2
the vacuum pump for about 10-15 minutes, then
completely tighten the "Lo" shuttle and switch off
the vacuum pump.
Completely unscrew the spindle of the service
valve (at 2 places) in anti-clockwise direction to
3
allow the flow of coolant (using Hexagonal
Wrench key).
Remove the Charge hose and tighten the cap of
4
valve head. The task is then completed.
Gas Leakage Inspection
Please use gas leakage detector to check if leakage
occurs at the connection of Flare nut as shown on the
right.
If gas leakage occurs, further tighten the connection to
stop leakage.
< IA236 : A >
How to Remove Indoor Unit
Remove the left and right lower cover. (Refer to page 7 on
how to remove the lower cover)
Push the [PUSH] sections at the bottom of the indoor unit
f r o m t h e o u t s i d e , t h e c l a w s a r e r e l e a s e d f r o m t h e
mounting plate. (2 places on the left and right)
If the bottom of the indoor unit cannot be pushed due to
the member such as horizontal rail above the head jamb,
remove the front cover and insert a screwdriver into the
hole for removal of indoor unit. Then,
upwards while holding down the upper part of the hole and
pull the indoor unit towards you. When horizontal piping
is used, be careful not to damage the pipe and F cable
with the tip of the screwdriver during this operation.
Please refer to page 16 on how to remove the front cover.
If the pipe support is installed on the left side viewing from
the front of the indoor unit, remove the lower side of the
pipe support.
Hole for removal
Hold with a hand
Claw
Hole for removal
Fixing
tab
Screwdriver
Temporary
stand
3
Drainage Check
After the indoor unit is installed, Please ensure the smooth
flow of condensed water of the Indoor unit during
installation. (Careless work may result in water leakage.)
•
During drainage work, install the drain
pipe to ensure smooth drainage. Make
sure to carry out drainage check.
( C a r e l e s s w o r k m a y r e s u l t i n w a t e r
leakage.)
•
Make sure that there is no problem as
shown below.
Such problems may cause clogged drain
and could result in water leakage.
CAUTION
•
Drain hose must be at a slope of at
Heat
least 1/25.
insulation
pipe
•
When inserting the drain hose into the
drain pipe for embedded piping, etc.,
Refrigerating
do not cut the drain hose in the middle.
pipe
This may lead to poorer heat insulating
Tape
performance of the drain hose and could
result in water leakage.
Ditch
Condensed
Bending
water pond
upwards
When the ventilating fan is used in
Be sure that the drain
an airtight house, a gurgling sound
hose is not loosely
m a y b e h e a r d f r o m a r o u n d t h e
connected.
drain pipe.
In such a case, use the drain tank
(service part RAS-2810KX 500).
When the meter reaches –101KPa (–76cmHg)
during pumping, fully tighten the shuttle.
Meter showing pressure
Lo
Hi
Manifold valve
Vacuum pump
Charge
hose
When pumping starts, slightly loosen
the flare nut to check of air sucked in.
Then tighten the flare nut.
The body of
service valve
Cap of
valve core
Hexagonal
Wrench Key
Cap of valve head
Cap of valve head
Please face this side (suction side)
of the unit to the wall.
push the claws
• Please mount the outdoor unit on stable ground to
prevent vibration and increase of noise level.
• Decide the location for piping after sorting out the
different types of pipe available.
• Open the side plate by unscrewing the screws as
shown on the right side.
1
Preparation of Pipe
Mounting plate
• Use a pipe cutter to cut the copper pipe.
Copper pipe
• Before flaring, please put on the flare nut.
• Please use exclusive tool.
Die
2
Pipe Connection
• 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. Prevent water from entering into the piping when working.
• Please be careful when bending the copper pipe.
• Screw in manually while adjusting the centre. After that, use a torque wrench to tighten the connection.
Flare nut
Condensed
water pond
Wrench
Torque
Procedures of Wiring
In case the power is supplied from indoor unit.
Indoor Unit
Line Cord
L
N
A
B
Connecting Cord
The naked part of the wire core should be 10mm and fix it to the
terminal tightly. Then try to pull the individual wire to check if the
contact is tight. Improper insertion may burn the terminal.
Be sure to use only power cables approved from the authorities
in your country.
Please refer to the installation manual for wire connection to the
terminals of the units. The cabling must meet the standards of
WARNING
electrical installation.
There is an AC voltage of 220-240V between the L and N
terminals. Therefore, before servicing, be sure to remove the
plug from the AC outlet or switch off the main switch.
Do not make any conection in the middle of the connecting
cable. It may cause the wire overheating, emit smoke and fire.
Wiring of the Indoor Unit
For wire connection of the indoor unit, you need to
remove front panel and electrical cover.
Screw
Wiring of the Outdoor Unit
• Please remove the side cover for wire connection.
• If you cannot attach the side cover due to the connecting
cord, press the conencting cord in direction to the front
panel to fix it.
• B e s u r e t h a t t h e h o o k s o f t h e s i d e c o v e r i s f i x e d
certainly. Otherwise water leakage may occur and this
WARNING
causes short circuit or faults.
• The connecting cord should not touch to service valve
and pipes. (It becomes high temperature in heating
operation.)
Checking for the electric source and the voltage range
• Before installation, the power source must be checked
and necessary wiring work must be completed. To
make the proper wiring capacity, use the wire
g a u g e s l i s t b e l o w f o r t h e l e a d - i n f r o m a p o l e
transformer and for the wiring from a switch board of
fuse box to the outlet in consideration of the locked
rotor current.
IMPORTANT
Cable length
up to 15m
up to 25m
Please remove side cover
when connecting the piping
and connecting cord.
Pull
downward
Please make sure to remove all spacers inside the
unit.
• Open the Top, Back and Side cover of the unit.
• Pull out the spacers inside.
(Spacers are only for transportation purpose.) If not
remove, vibration and noise will occur.
Trimming tool
•
Jagged edge will cause leakage.
•
Point the side to be trimmed downwards during
trimming to prevent copper chips from entering the
pipe.
Outer
Diameter (mm)
Imperial Flaring Tool
Die
A
6.35
0.8 - 1.5 mm
15.88
1.0 - 2.0 mm
Copper pipe
CAUTION
Outer diameter
of pipe
Small diameter side
6.35
Large diameter side
9.52
Small diameter side
6.35
Valve head
cap
Large diameter side
9.52
Valve core cap
WARNING
THIS APPLIANCE MUST BE EARTHED.
Indoor
Power line
Outdoor Unit
Unit
30mm
15mm
A
B
ø2.0
Method to remove the front panel
Refer to "Removing and Attaching the Front Panel"
on page 15.
Method to remove electrical cover
Method to remove electrical cover
R e m o v e t h e s c r e w a n d e l e c t r i c a l
cover.
Insert the connecting cord (A, B) from
the bottom of unit.
Fix the wire to terminal wires firmly as
shown in figure at right side.
Electrical cover
• Investigate the power supply capacity and other
electrical conditions at the installation location.
Depending on the model of room air conditioner to
b e i n s t a l l e d , r e q u e s t t h e c u s t o m e r t o m a k e
arrangements for the necessary electrical work
etc.The electrical work includes the wiring work up
the outlet. In localities where electrical condition sare
poor, use of a voltage regulation is recommended.
Wire cross-section
IMPORTANT
Fuse Capacity
2.5mm
2
4.0mm
2
20A time delay fuse
Top cover
Back cover
Side cover
CAUTION
CAUTION
A (mm)
Rigid Flaring Tool
0 - 0.5 mm
0 - 1.0 mm
Torque N • m
(kgf • cm)
13.7 – 18.6 (140 – 190)
49 – 58.5 (500 – 600)
19.0 – 21.0 (194 – 214)
29.0 – 31.0 (295 – 318)
9.0 (92)
Outdoor
Strip wires
Unit
25mm
10mm
10mm
35mm
GRN + YEL
Connecting cord for outdoor thermistor
need to fix with indoor power cord by
using binder.
Purpose is to avoid this connecting
cord from pulled out when pulling is
given.
Connect the
earth cord
After removing the
screw and band,
put the connecting
cord and fix the
band with screw.
B
A
Earth terminal
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