A
B
C
D
A
<
IA820: A
>
If you cannot attach the side cover due to
the connecting cord, press the connecting
cord in direction to the front panel to
fi
x
it.
Be sure that the hooks of the side cover is
fi
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
proper wiring capacity, 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 outlet in consideration of the
locked rotor current.
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
Wiring Of The Outdoor Unit
Please remove the side cover for wire connection.
!
CONNECTION OF POWER CORD
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 “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
fi
rmly as shown in
fi
gure at right side.
AUTO
RESTART
SWITCH
Fuse Capacity
20A time delay fuse
WARNING
Connect the
earth cord
After remove the screw
and band, put the
connecting cords and
fi
x
the band with screw.
THIS APPLIANCE MUST
BE EARTHED.
Procedures of Wiring
WARNING
!
Power is supplied from Outdoor Unit
GRN + YEL
Indoor
Unit
GRN + YEL
Outdoor
Unit
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 3x1.5mm
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 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.
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.
When removing side cover, please pull the handle after undoing the
hook by pulling it downward.
Please face this side (suction
side) of the unit to the wall.
Please remove side cover
when connecting the piping
and connecting cord.
Pull downward
BASE
DRAIN PIPE
CONDENSED WATER DISPOSAL OF OUTDOOR UNIT
There are holes on the base of Outdoor unit for condensed
water to exhaust.
In order to
fl
ow condensed water to the drain, the unit is installed on a
stand or a block so that the unit is 100mm above the ground as shown
fi
gure. Join the drain pipe to one hole.
At
fi
rst insert one portion of the hook to the base (Portion A), then pull the
drain pipe in the direction shown by the arrow while inserting the hook
into the base. After installation, check whether the drain pipe cling to the
base
fi
rmly.
When Using and Installing In Cold Areas
When the air conditioner is used in low temperature and in snowy
conditions, water from the heat exchanger may freeze on the base
surface to cause poor drainage. When using the air conditioner in such
areas, do not install the bushings. Keep a minimum of 250mm between
the drain hole and the ground. When using the drain pipe, consult your
sales agent.
For more details, refer to the installation Manual for Cold Areas.
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.
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 beside.
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.
Screw
How to Attach the Front Cover
Hole
De
fl
ector
Lower portion of front cover
Cap
Guide
Shaft
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.
CAUTION
Outdoor supply cords shall not be lighter
than polychloroprene sheathed
fl
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]
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
How To Connect The Optional Parts
(RAC Adapter, Weekly Timer, Wired Remote Control)
CN1
101
CN1
102
N
C
D
B
A
L
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. (Be sure to use R410A detector)
3
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.
Pipe Connection
2
INST
ALLA
TION OF REFRIGERA
TING PIPES
AND
AIR REMOV
AL
CAUTION
!
AIR REMOV
AL
●
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.
When the meter reaches - 101KPa
(-76cmHg) during pumping, fully
tighten the shuttle.
Closed
R410A
Valve
Charge hose
Vacuum pump
adapter
When pumping starts, slightly loosen the
fl
are nut to check of air sucked in. Then
tighten the
fl
are nut.
Lo
Hi
Vacuum
pump
Manifold valve
Meter showing pressure
Valve
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.
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
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
Power line
Control line
Screw
Electrical
cover
CN1101
RAC
Adaptor
cord
CN1102
Weekly timer / Wired
remote controller
Earth terminal
