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.
FINAL
ST
AGE OF INST
ALLA
TION
Insulation And Maintenance Of Pipe Connection
1
●
The connected terminals should be completely sealed with
heat insulator and then tied up with rubber strap.
●
Please tie the pipe and power line together with vinyl tape
as shown in the gure showing the installation of Indoor and
Outdoor units. Then x their position with holders.
●
To enchance the heat insulation and to prevent water
condensation, please cover the outdoor part of the drain hose
and pipe with insulation pipe.
●
Completely seal any gap with putty.
Installation Of Remote Controller
2
Power Source And Operation Test
3
●
The remote controller can be placed in its holder which is
xed on wall or 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 xed. The unit will beep
when signal is received from the remote controller. The signal
transmission is weaken by the uorescent light. Therefore,
during the installation of the remote control holder, please
switch on the light, even during day time, to determine the
mounting location of the holder.
Power Source
CAUTION
!
●
Please use a new socket. Accident may occur due to the use
of old socket because of poor contact.
●
Please plug in and then remove the plug for 2 – 3 times. This
is to ensure that the plug is completely plugged into the socket.
●
Keep additional length for the power cord and do not render
the plug under external force as this may cause poor contact.
●
Do not x the power cord with U-shape nail.
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.
<
IA753: B
>
Preparation of Pipe
1
●
Use a pipe cutter to cut
the copper pipe.
●
Jagged edge will cause leakage.
●
Point the side to be trimmed downwards during trimming to prevent copper
chips from entering the pipe.
●
Before aring, please put on the are nut.
Pipe Connection
2
INST
ALLA
TION OF REFRIGERA
TING PIPES
AND
AIR REMOV
AL
CAUTION
!
WARNING
●
If you cannot attach the side cover
due to the connecting cord, press the
connecting cord in direction to the front
panel to x it.
●
Be sure that the hooks of the side cover
is xed in certainly. Otherwise water
leakage may occur and this 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
wiring capacity proper, use the wire gauges list below for
the lead-in from a pole transformer and for the wiring from
a switch board of fuse box to the main switch and outdoor
unit in consideration of the locked rotor current.
●
THIS APPLIANCE MUST
BE EARTHED.
Procedures of Wiring
Wiring of The Outdoor Unit
●
Please remove the side cover for wire connection.
!
CONNECTION OF POWER CORD
●
Please be careful when bending the copper pipe.
●
Screw in manually while adjusting the center. After that, use of torque wrench to
tighten the connection.
!
In case that power is supplied from Indoor Unit
CAUTION
!
In case of removing are nut of an Indoor unit, rst remove a nut
of small diameter side, or a seal cap of big diameter side will y
out. Prevent water from entering into the piping when working.
Power line
Control line
GRN + YEL
How to Attach the Front Cover
1 After covering the front cover to the unit, certainly hook
at the upper portion (four places). Then, check that the
drain pan is certainly attached. Push the front cover in
the direction of arrow at the
portion of hooks.
2 Hook the front cover at lower portion to the drain pan and
then x them by screws and attach the caps.
3 Attach the front panel.
●
Certainly insert the left shaft of the front panel to the hole
of the front cover. Next insert the right shaft as same as
the left.
4 Attach the lters which are placed the surface written
“FRONT” up.
●
After attaching the lters, push the front panel at three
arrow portion as shown in gure and close it.
Hole
A
B
C
D
How to Remove The Front Cover
1 Open the front panel.
●
Please remove and attach
the front panel by both
hands.
●
After opening the front panel by both hands.
1 Undo the right arm while pushing it inside.
2 Slide the front panel to right as shown in gure. Then
remove while pulling it to front.
2 Remove the lters.
3 Remove the caps and screws
at the lower portion of the
front cover.
4 Pull the front cover upward as far
as the location where the lower
portion of the front cover is on
the de ector.
5 Remove while pulling the front
cover in direction to arrow as
shown in gure to hold the
both sides of front cover.
Lower portion of front cover
De ector
Removal Of Air From The Pipe And Gas Leakage Inspection
3
●
The naked part of the wire core should be 10 mm and
x 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. For example in Germany:
Cable type: NYM 3x1.5mm
2
, (fuse = 20A time delay)
●
Please refer to the installation manual for wire connection
to the terminals of the units. The cabling must meet the
standards of electrical installation.
●
There is a AC voltage of 220V between the L, N, A
and B terminals. Therefore, before servicing, be sure
to remove the plug from the AC outlet or switch off the
main switch.
WARNING
!
OUTDOOR UNIT
●
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 below.
Please remove side cover
when connecting the piping
and connecting cord.
CAUTION
!
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.
●
Investigate the power supply capacity and other
electrical conditions at the installation location.
Depending on the model of room air conditioner to be
installed, request the customer to make arrangements
for the necessary electrical work etc.
The electrical work includes the wiring work up the
outlet. In localities where electrical conditions are
poor, use of a voltage regulation is recommended.
IMPORTANT
Fuse Capacity
30A time delay fuse
A
B
Wiring Of The Indoor Unit
●
For wire connection of the Indoor unit, you need to remove front panel
and electrical cover.
Method to remove front panel
●
Refer to “FINAL STAGE OF INSTALLATION – How to Remove The
Front Cover”.
Method to remove electrical cover
●
Remove the screw and electrical cover.
●
Insert the connecting cord (A, B, C, D) from the bottom of unit.
●
Fixed the wire to terminal wires rmly as shown in gure at
right side.
Screw
Electrical cover
Screw
C
D
CAUTION
Outdoor supply cords shall not be lighter than
polychloroprene sheathed exible cord with code
designation 60245 IEC 57.
IMPORTANT
Cable length
up to
1
6m
up to 15m
up to 25m
Wire cross-section
1.5mm
2
2.5mm
2
4.0mm
2
[For all optional part, please refer catalog for part number]
As for connecting to H-Link, a separately purchased
RAC Adapter is required.
●
To install the wiring the electrical box cover must be opened.
●
Connect the connector of RAC adapter to CN1101.
●
Assemble back the cover of electrical box.
●
Please refer to the respective user manual of RAC Adapter
for further details.
●
Please be careful not to damage lead wires by edge of
plate when connecting the optional parts.
[For all optional part, please refer catalog for part number]
Connection to the electrical box:
●
Remove the cover of electrical box.
●
Connect the connector of Weekly Timer/wired remote
controller to CN1102.
●
Assemble back the cover of electrical box.
●
Please refer to the respective user manual of Weekly Timer/
wired remote controller for further details.
●
Please be careful not to damage lead wires by edge of
plate when connecting the optional parts.
WEEKLY TIMER / WIRED REMOTE CONTROLLER
H-LINK
How To Connect The Optional Parts
(RAC Adapter, Weekly Timer, Wired Remote Control)
Please face this side
(suction side) of the
unit to the wall.
Pull downward
Indoor
Unit
Outdoor
Unit
GRN + YEL
Strip wires
After remove the screw
and band, put the con-
necting cords and x the
band with screw.
Connect the
earth cord
L
N
Earth terminal
Screw
Cap
Shaft
Guide
●
Recommend to use
R410A aring tool.
Outer
Diameter (mm)
6.35 (1/4)
9.52 (3/8)
12.70 (1/2)
15.88 (5/8)
1.0 ~ 1.5
1.0 ~ 1.5
1.0 ~ 1.5
1.0 ~ 1.5
Clutch type
A (mm)
1.5 ~ 2.0
1.5 ~ 2.0
1.5 ~ 2.5
1.5 ~ 2.5
Wing nut type
Thickness
(mm)
0.8
0.8
0.8
1.0
0.0
~
0.5
0.0
~
0.5
0.0
~
0.5
0.0
~
0.5
Flare tool for R410A
Clutch type
Conventional are tool
Outer
dia.of pipe
6.35 (1/4")
15.88 (5/8")
6.35 (1/4")
15.88 (5/8")
Valve
head cap
Torque N·m
(kgf · cm)
13.7 ~ 18.6 (140 ~ 190)
49.0 ~ 58.8 (500 ~ 600)
19.0 ~ 21.0 (194 ~ 214)
29.0 ~ 31.0 (296 ~ 316)
9.0 (92)
Small dia. side
Large dia. side
Valve core cap
Small dia. side
Large dia. side
When the meter reaches - 101KPa (-76cmHg)
during pumping, fully tighten the shuttle.
Lo
Hi
Meter showing pressure
Closed
R410A
Manifold valve
Vacuum pump
Valve
Charge hose
Valve
Vacuum
pump
adapter
When pumping starts, slightly loosen the
are nut to check of air sucked in. Then
tighten the are nut.
Procedures of using Vacuum Pump for Air Removal
AIR REMOV
AL
As shown in right gure, remove the cap of
valve core. Then, connect the charge hose.
Remove the cap of valve head. Connect the
vacuum pump adapter to the vacuum pump
and connect the charge hose to the adapter.
Fully tighten the “Hi” knob of the manifold
valve and completely unscrew the “Lo” knob.
Run the vacuum pump for about 10~15
minutes, then completely tighten the “Lo” knob
and switch off the vacuum pump.
2
Completely unscrew the spindle of the
service valve (at 2 places) in anti-clockwise
direction to allow the ow of refrigerant (using
Hexagonal Wrench key).
Re-cap the service valve and tighten using
wrench. Check the cap’s periphery if there is
any gas leakage. The task is then completed.
Remove the charge hose and tighten the cap
of valve core. Check the cap’s periphery if
there is any gas leakage.
4
5
1
3
The controller should be
insert from top into bottom
side of the holder as shown
in gure below.
Top cover
Side cover
Back cover
●
How to check pipe bending.
– Compare bended pipe with the picture below.
– If bended pipe is not good enough, cut bended area
and bend it again.
a all areas are smooth, no notching area
b no scratch or mark inside
c all have the same length
d phase of bending is too long
e slanting
f there are scratches around bending area
g crack
h different
length
i sample of bending pipe cannot be used
WARNING
INS RAS-X24CAT (2).indd 1
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