Removal Of Air From The Pipe And Gas Leakage Inspection
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)
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
fi
gure showing the installation of Indoor and
Outdoor units. Then
fi
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
fi
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
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 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
fi
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.
<
IA100: A
>
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
fi
gure below.
3
Procedures of using Vacuum Pump for Air Removal
As shown in right
fi
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” shuttle of the
manifold valve and completely unscrew
the “Lo” shuttle. Run the vacuum pump
for about 10–15 minutes, then completely
tighten the “Lo” shuttle 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
fl
ow of
coolant (using Hexagonal Wrench key).
3
Remove the charge hose and tighten
the cap of valve head. Check the cap’s
periphery if there is any gas leakage.
The task is then completed.
4
1
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
fl
aring, please put on the
fl
are nut.
INST
ALLA
TION OF REFRIGERA
TING PIPES
AND
AIR REMOV
AL
CAUTION
!
AIR REMOV
AL
●
The naked part of the wire core should be 10 mm and
fi
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 3x1.5mm2.
●
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 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.
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
WARNING
!
CONNECTION OF POWER CORD
WARNING
!
●
Recommend to use
R410A
fl
aring tool.
When the meter reaches - 101KPa
(-76cmHg) during pumping, fully
tighten the shuttle.
Meter showing pressure
Closed
R410A
Manifold valve
Vacuum
pump
Valve
Charge hose
Valve
Vacuum pump
adapter
When pumping starts, slightly loosen the
fl
are nut to check of air sucked in. Then
tighten the
fl
are nut.
Copper pipe
Trimming tool
A
Die
Die
Copper pipe
Lo
Hi
The body of
service valve
Cap of
valve core
Hexagonal
Wrench Key
Cap of valve head
Cap of valve head
Sleeve of
protection pipe
Putty
Putty
Insulation material for pipe connection
Remote
Controller
Holder for
Remote Controller
Screw (2 pieces)
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 (C, D) from the bottom of unit.
●
Fixed the wire to terminal wires
fi
rmly as shown in
fi
gure at right side.
AUTO
RESTART
SWITCH
Electrical cover
Screw
Power supply shall be connected at the rated voltage, otherwise the unit will be
broken or could not reach the speci
fi
ed capacity.
How to Remove The Front Cover
1 Remove the front panel.
●
Please remove and attach the front panel by both hands.
●
After opening the front panel by both hands.
➀
Undo the right arm while pushing it inside.
➁
Slide the front panel to right as shown in
fi
gure. Then
remove while pulling it to front.
2 Remove the
fi
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
fl
ector.
5 Remove while pulling the front cover in direction to arrow
as shown in
fi
gure to hold the both sides of front cover.
Cap
Screw
Lower portion of front cover
De
fl
ector
How to Attach the Front Cover
➀
After covering the front cover to the unit, certainly hook
at the upper portion (three places). Then, check that the
drain pan is certainly attached. Push the center of front
cover in the direction of arrow.
➁
Fix the front cover at lower portion by screws and attach
the caps.
➂
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.
➃
Attach the
fi
lters which are placed the surface written
“FRONT” up.
●
After attaching the
fi
lters, push the front panel at three
arrow portion as shown in
fi
gure and close it.
Hole
Guide
Shaft
1
2
Pipe Connection
2
CAUTION
!
In case of removing
fl
are nut of an Indoor unit,
fi
rst remove a nut
of small diameter side, or a seal cap of big diameter side will
fl
y
out. Prevent water from entering into the piping when working.
Wrench
Tor ue
wrench
Flare nut
Cable length
up to
1
6m
up to 15m
up to 25m
Wire cross-section
1.5mm
2
2.5mm
2
4.0mm
2
IMPORTANT
Outer
Diameter (ø)
6.35 (1/4")
15.88 (5/8")
Imperial
fl
aring tool
0.8 – 1.5
1.0 – 2.0
Rigid
fl
aring tool
0 – 0.5
0 – 1.0
A (mm)
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 – 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
Power is supplied from Outdoor Unit
L
N
D
C
B
A
D
C
B
A
Indoor Unit
Line Cord
Outdoor Unit
Connecting Cord
1.6 or 2.0
AC 220-240V
2.5
2.5
Power line
Control line
GRN + YEL
25mm
35mm
10mm
30mm
10mm
30mm
10mm
10mm
70mm
10mm
10mm
45mm
Indoor
Unit
GRN + YEL
Outdoor
Unit
Strip wires
A
B
C
D
After remove the screw
and band, put the con-
necting cords and
fi
x the
band with screw.
Connect the
earth cord
