Removal Of Air From The Pipe And Gas Leakage Inspection
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.
Power Source And Operation Test
3
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.
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” 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.
Remove the charge hose and tighten the cap of valve core. Check the cap’s periphery
if there is any gas leakage.
Completely unscrew the spindle of the service valve (at 2 places) in anti-clockwise
direction to allow the
fl
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.
Preparation of Pipe
1
●
Use a pipe cutter to cut
the copper pipe.
Pipe Connection
2
INST
ALLA
TION OF REFRIGERA
TING PIPES
AND
AIR REMOV
AL
AIR REMOV
AL
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
In case that power is supplied from Indoor Unit
CONNECTION OF POWER CORD
!
●
Recommend to use
R410A
fl
aring tool.
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.
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”.
Power supply shall be connected at the rated voltage, otherwise the
unit will be broken or could not reach the speci
fi
ed capacity.
●
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.
CAUTION
!
1
2
3
4
5
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).
GRN + YEL
Strip wires
●
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 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.
WARNING
!
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
Indoor Unit
Connect the
earth cord
Method to remove the low cover
●
Pull the cover at and in the directions as
shown by arrows to remove the cover.
After remove the screw
and cover, and put the
connecting cords and
fi
x
the cover with screw.
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.
Undo the right arm while pushing it inside.
Slide the front panel to right as shown in
fi
gure. Then remove while
pulling it to front.
Open the electrical cover. Disconnect the wire connector.
2 Remove the
fi
lters.
3 After removing two screws, pull the center of the front cover towards
you and release the claws.
4 Pull the side faces (lower sections) of the front cover towards you
as shown in the
fi
gure and remove the cover.
How to Attach the Front Cover
1
Check that the drain pan is securely attached.
2 After installing the front cover onto the unit, hook three
claws at upper side of the cover securely. Then, push
the center of the front cover to lock the claws.
3
Tighten the two screws.
4
Connect the wire connector. Close the electrical cover.
5 Install
the
fi
lter.
6
Slide the shafts of the right and left arms on the washable
panel along the steps to insert the shafts into the holes
till they stop. After checking that the shafts are securely
inserted, close the panel.
/R
+L
[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 CN7.
●
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 wired remote controller to CN9.
●
Assemble back the cover of electrical box.
●
Please refer to the respective user manual of wired remote
controller for further details.
●
Please be careful not to damage lead wires by edge of
plate when connecting the optional parts.
WIRED REMOTE CONTROLLER
H-LINK
How To Connect The Optional Parts
(RAC Adapter, Wired Remote Control)
RAC Adapter cord
Fix the wired remote controller cord and RAC
adapter cord by band.
Wired remote
controller cord
Locking mechanism
●
To remove the front panel,
slide the front panel locking
mechanisms (left and right)
toward the directions as
indicated by arrows in the
illustration, until you hear a
clicking sound.
●
Remove the front
panel by pulling it
towards you.
Arm
Step
Slot
●
Firmly insert the front
panel arms by sliding
along the steps located
at the main body
●
Slide the front panel
locking mechanisms
(left and right) into the
slots located at the
main body, until you
hear a clicking sound.
Slot
Disconnect the wire connector
Terminal cover
Push to lock the claws
Installation Of Remote Controller
2
●
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.
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.
Front Panel
Trimming tool
Copper pipe
Die
Die
Copper pipe
30mm
10mm
10mm
70mm
Insulation material for pipe connection
Flare nut
Torque
wrench
Wrench
RAC Adapter
Wired remote controller
Putty
Putty
Sleeve of
protection pipe
Cap of valve head
Cap of valve head
The body of
service valve
Hexagonal
Wrench Key
Cap of valve
core
When pumping starts,
slightly loosen the
fl
are
nut to check of air
sucked in. Then tighten
the
fl
are nut.
Vacuum pump adapter
Vacuum pump
Stop
valve
Stop
valve
R410A Manifold
valve
Charge hose
Closed
Meter showing pressure
When the meter reaches -101KPa
(-76cmHg) during pumping, fully tighten
the shuttle.
<
IA1008: A
>
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
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
fl
are tool
The remote
controller must be
slide in
the remote
controller 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
WARNING
INS RAK-25-35-50QXA (EN).indd 2
1/17/13 4:33 PM
