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 completed 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.
●
If room humidity is high, cover the connecting pipe with
additional 5mm thickness insulator. This insulator shall be
purchased from
fi
eld.
●
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
orescent 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 make sure, that the power voltage is 220V-240V
within the operation voltage of the unit.
●
Please take under consideration, that the power capacity
from your house distribution box is high enough for operating
your room air conditioner.
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.
3
Procedures of using Vacuum Pump for Air Removal
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 insert the
fl
are nut into the pipe.
Pipe Connection
2
INST
ALLA
TION OF REFRIGERA
TING PIPES
AND
AIR REMOV
AL
CAUTION
!
AIR REMOV
AL
●
THIS APPLIANCE MUST BE EARTHED.
Wiring Of The Indoor Unit
(1) Remove the cover of the electric box.
(2) Connect the connecting cords.
(3) Assemble the cover of electric box.
Procedures of Wiring
CONNECTION OF POWER CORD
CAUTION
!
In case of removing Flare nut of a indoor unit,
fi
rst remove a nut of small diameter side, or a
seal cap of big diameter side will
fl
y out.
●
Please be careful when bending the copper pipe.
●
Applied frozen grease to the connection points and then screw in
manually. After that, use a torque wrench to tighten the connection.
WARNING
!
Power supply shall be connected at the rated voltage, otherwise the unit will be
broken or could not reach the speci
fi
ed capacity.
Installation Of Optional Panel
4
●
Carefully read through the procedures of proper installation
before starting installation work.
<
IA1171: A
>
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 gauge list below
for the wiring from a switch board of fuse box to the
outdoor unit in consideration of the locked rotor current.
IMPORTANT
Cable length
up to
1
25m
Wire cross-section
1.5mm
2
●
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 4 x 1.5mm
2
.
●
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 1 and 2 terminals. Therefore,
before servicing, be sure to remove the plug from the AC outlet or switch
off the main switch.
WARNING
!
When the meter reaches - 101KPa
(-76cmHg) during pumping, fully
tighten the shuttle.
Meter showing pressure
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.
●
A separately purchased HA Connection Cord is required to get connected to
the HA System.
●
To connect to H-LINK, a separately purchased RAC Adapter is required.
●
To connect to Dry Contact, a separately purchased Dry Contact Connection
Cord is required.
●
To connect Wired Remote Control, a separately purchased Wired Remote
Control is required.
How To Connect The Optional Parts
(RAC Adapter, Wired Remote Controller, Dry Contact)
RAC Adaptor cord
Outer
Diameter
mm (inch)
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
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
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.
2
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.
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 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
Wired remote
controller cord
HA cord / Dry Contact cord
Power cable
●
To install the wiring, remove the metal cover of electrical box.
R
As for HA system and Dry Contact, connect the connection cord to CN9.
R
As for RAC Adapter, connect the connection cord to CN1101.
R
As for Wired Remote Control, connect the connection cord to CN1102.
●
The connection cords and power cable are to be arranged and tied up as per
the diagram as shown above.
●
Please refer to the respective user manuals of the HA System, Dry Contact, RAC
Adapter, and Wired Remote Controller for further details.
●
Please refer to user manual for instructions on removal and installation of the
electrical box.
●
Please be careful not to damage lead wires by edge of metal plate when connecting
the optional parts.
●
For ordering all optional parts, please refer to the catalogue for part number.
INS RAI-25-35-50QPB-EN2 1
INS RAI-25-35-50QPB-EN2 1
12/24/14 2:06 PM
12/24/14 2:06 PM
