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1
Preparation of Pipe
Use a pipe cutter to cut the copper pipe.
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Trimming tool
Copper pipe
CAUTION
!
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Jagged edge will cause leakage.
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Point the side to be trimmed downwards during trimming to
prevent copper chips from entering the pipe.
Before flaring, please put on the flare nut.
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Die
Die
A
Copper pipe
Recommend to use
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R410A flaring tool.
Outer
A (mm)
Diameter (mm)
For R410A tool
For R22 tool
0.0
~
0.5mm
1.0mm
6.35
0.0
~
0.5mm
9.52
1.0mm
12.7
0.0
~
0.5mm
1.0mm
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THIS APPLIANCE MUST BE EARTHED.
!
WARNING
Power supply shall be connected at the rated voltage, otherwise the unit will be broken or could not reach the
specified capacity.
Procedures of Wiring
In case that power is supplied from Indoor Unit
Indoor Unit
30mm
10mm
10mm
70mm
!
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The naked part of the wire core should be 10 mm 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.
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Be sure to use only power cables approved from the authorities in your country. For example in Germany:
Cable type: NYM 3x1.5mm
2
.
Please refer to the installation manual for wire connection to the terminals of the units. The cabling must
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meet the standards of electrical installation.
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There is a AC voltage of 230V 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.
1
Insulation And Maintenance Of Pipe Connection
The connected terminals should be completely sealed with
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heat insulator and then tied up with rubber strap.
Please tie the pipe and power line together with vinyl tape as
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shown in the figure showing the installation of Indoor and
Outdoor units. Then fix their position with holders.
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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.
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Insulation material for pipe connection
Sleeve of
protection pipe
Putty
Putty
3
Power Source And Operation Test
Power Source
CAUTION
!
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Please use a new socket. Accident may occur due to the use of old
socket because of poor contact.
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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.
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Keep additional length for the power cord and do not render the
plug under external force as this may cause poor contact.
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Do not fix the power cord with U-shape nail.
<
>
I590: A
(EN2) INS RAS-10NHZ4-indoor
1
Black
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
!
CAUTION
diameter side will fly out. Prevent
water from entering into the piping
when working.
Flare nut
Wrench
Torque
wrench
Outer
dia.of pipe
Small dia. side
6.35 (1/4")
13.7 – 18.6 (140 – 190)
Large dia. side
9.52 (3/8")
34.3 – 44.1 (350 – 450)
12.7 (1/2")
44.1 – 53.9 (450 – 550)
6.35 (1/4")
19.6 – 24.5 (200 ~ 250)
Valve
Small dia. side
head cap
Large dia. side
9.52 (3/8")
19.6 – 24.5 (200 ~ 250)
12.7 (1/2")
29.4 – 34.3 (300 – 350)
12.3 – 15.7 (125 ~ 160)
Valve core cap
GRN + YEL
Strip wires
WARNING
2
Installation Of Remote Controller
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The remote controller can be placed in its holder which is
fixed on wall or beam.
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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 fixed. The unit will beep
when signal is received from the remote controller. The signal
transmission is weaken by the fluorescent 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.
The controller must
be hooked onto the
hook at the lower
part of the holder.
Push in the remote
controller in the
direction as shown
in figure below.
Remote
Controller
Operation Test
Please ensure that the air conditioner is in normal
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operating condition during the operation test.
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Explain to your customer the proper operation
procedures as described in the user's manual.
3
Removal Of Air From The Pipe And Gas Leakage Inspection
Procedures of using Vacuum Pump for Air Removal
As shown in right figure, remove the cap of valve core. Then, connect the charge
1
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" shuttle of the manifold valve and completely unscrew the
2
"Lo" shuttle. Run 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
3
direction to allow the flow of coolant (using Hexagonal Wrench key).
Torque N·m
(kgf · cm)
Remove the charge hose and tighten the cap of valve head. Check the cap's
4
periphery if there is any gas leakage. 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. (Use the detector provided for
R410A).
Wiring Of The Indoor Unit
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For wire connection of the Indoor unit, you need to remove front panel and electrical cover.
Method to remove front panel
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Refer to "FINAL STAGE OF INSTALLATION – How to Remove The Front Cover".
Method to remove electrical cover
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Remove the screw and electrical cover.
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Insert the connecting cord (C, D) from the bottom of
unit.
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Fixed the wire to terminal wires firmly as shown in
figure at right side.
Screw
Checking for the electric source and the voltage range
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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.
IMPORTANT
How to Remove The Front Cover
1 Remove the front panel.
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Please remove and attach the front panel by both hands.
2
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After opening the front panel by both hands.
Undo the right arm while pushing it inside.
1
Slide the front panel to right as shown in figure. Then
2
remove while pulling it to front.
2 Remove the filters.
Screw (2 pieces)
3 Remove the caps and screws at the lower portion of the
front cover.
Cap
Holder for
Remote Controller
4 Pull the front cover upward as far as the location where
the lower portion of the front cover is on the deflector.
Lower portion of front cover
5 Remove while pulling the front cover in direction to arrow
as shown in figure to hold the both sides of front cover.
8/4/04, 6:55 PM
Connect the
earth cord
Electrical cover
After remove the screw
AUTO
and band, put the
RESTART
SWITCH
connecting cords and fix
the band with screw.
Cable length
Wire cross-section
up to 16m
1.5mm
2
up to 15m
2.5mm
2
up to 25m
4.0mm
2
How to Attach the Front Cover
After covering the front cover to the unit, certainly hook at
1
the upper portion (three places). Then, check that the drain
pan is certainly attached. Push the center of front cover in
1
the direction of arrow.
Fix the front cover at lower portion by screws and attach
2
the caps.
Attach the front panel.
3
Screw
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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.
Attach the filters which are placed the surface written
4
"FRONT" up.
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After attaching the filters, push the front panel at three
arrow portion as shown in figure and close it.
Deflector
When the meter reaches - 101KPa
(-76cmHg) during pumping, fully
tighten the shuttle.
Meter showing pressure
Closed
Lo
Hi
R410A
Manifold valve
Charge hose
Valve
Vacuum
Valve
pump
Vacuum pump
adapter
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
C
D
Hole
Shaft
Guide
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