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THE CONNECTION OF REFRIGERATING PIPE DURING THE
INSTALLATION OF INDOOR UNIT
Preparation To Install Refrigerating Pipes
The refrigerating pipes and connecting cord arrangement are attached.
●
Please bend at a small
radius to form an arc
1100 mm
Installation
Hang the Indoor unit onto the hanger. Use the temporary stand at
the back of the Indoor unit to push its lower part 15cm forwards.
Place the drain hose through the hole on the wall.
●
Wrap the refrigerating pipes with insulation pipe after connecting
●
refrigerating pipe.
Connect the connecting cord after removing low cover. (Refer
●
to "Connection of Power Cord")
After adjustment, the connecting cord and refrigerating pipes
●
are placed into the space available under the Indoor unit.
The projection of Indoor unit must hook to the mounting plate.
●
Wall hole
Pipe
Cable
Drain hose
Drain layout of backward
piping from left
Protection
Pull this to the
pipe
front during the
connection of
Drain hose
Refrigerating pipe
refrigerating pipes
to ease task.
Heat insulation pipe
Connecting cord
Connecting cord
Bottom Cover Removal and Installation
When connecting the refrigerant pipe, the bottom cover can be removed for
easy installation.
Bottom cover installation
●
Put the 4 claws at front of the bottom cover into the indoor unit notch.
●
Push the left and right claw of bottom cover into the unit.
Bottom cover
Indoor unit notch
Claw
WARNING
THIS APPLIANCE MUST BE EARTHED.
!
Detail of Cutting the Connecting Cord
Indoor Unit
70mm
Green + Yellow (ground)
10mm
1
Strip wires
2
3
10mm
Connecting cord
45mm
WARNING
!
Leave some space in the connecting cord for
●
maintenance purpose and be sure to secure it
with the cord band.
Secure the connecting cord along the coated
●
part of the wire using the cord band. Do not
exert pressure on the wire as this may cause
overheating or fi re.
1
HOW TO REMOVE OR ATTACH THE FRONT COVER
How to Remove the Front Cover
Remove the front panel
1
1
2
Arm
Move
Push the end of the right-side arm outward to release the tab.
1
Move the left-side arm outward to release the left tab, and then pull
2
the panel towards you.
Remove the fi lters.
2
3
After removing 3 screws, remove the cover of electric box, pull the center
of the front cover towards you and release the claws.
Pull the side faces (lower sections) of the front cover towards you as
4
shown in the fi gure and remove the cover.
Claw
>
< IA2273: A
INSTALLATION AFTER CONNECTION OF REFRIGERATING PIPES
The refrigerating pipe should be adjusted to fi t into the hole on the wall and
●
then ready for further connection.
The terminals of 2 connected pipes must be covered with insulator used for
●
terminal connection. Then the pipes are wrapped with insulatin pipe.
Connect the connecting cord after removing low cover. (Refer to "CONNECTION
●
OF POWER CORD")
After adjustment, fi t the connecting cord and pipes into the space available
●
under the unit. Use holder to hold them tight.
Be sure to cut the extra binding band. (Otherwise, it may result in abnormal
●
noise or dewfall.)
below
5mm
Drain hose
Projection
Pipe
Connecting cord
Hook
Preparation of Pipe
1
about 15cm
Use a pipe cutter to cut the
●
copper pipe.
Remove burr and 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.
●
Die
Die
Connected
section
Outer Diameter
Thickness
Flare tool for R32
mm (inch)
(mm)
6.35 (1/4")
0.8
9.52 (3/8")
0.8
12.70 (1/2")
0.8
1.0
15.88 (5/8")
Pipe Connection
2
●
In case of removing fl are 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. Free from water into the piping
when working.
●
Be sure to tighten the fl are nut to the specifi ed torque with a torque wrench.
If the fl are nut is overtightened, the nut may be split after a long period has
passed, and may cause a refrigerant leak.
Please be careful when bending the copper pipe.
●
Screw in manually while adjusting the center. After
●
that, use a torque wrench to tighten the connection.
Wiring of The Indoor Unit
●
For wire connection of the Indoor unit, you need to remove
the front cover, the low cover under the body of the unit and
terminal cover.
●
Remove the cover from the terminal base and screw the
cable.
After remove the screw and
the terminal cover, put the
connecting cords and fi x the
terminal cover with screw.
How to Attach the Front Cover
After installing the front cover onto the unit, hook three claws at upper
1
side of the cover securely. Then, push the center of the front cover to
lock the claws.
Assemble the cover of electric box.
2
3
Tighten the 3 screws.
4
Install the fi lter.
Attaching the Front Panel
5
Insert the shaft of the left arm along the step on the unit into the
●
hole.
Securely insert the shaft of the right arm along the step on the unit
●
into the hole.
Make sure that the front panel is securely attached, and then close
●
the front panel.
Claw
7
Binding band
Binding band can be
Insulation
installed to whichever
side of the installation
pipe (must be
points. However, it is
wrapped with
recommended to attach it
vinyl tape at
every 120mm)
on the right side viewing
from the rear.
3
Trimming tool
The connected terminals should be completed sealed with heat insulator
●
and then tied up with rubber strap.
Copper pipe
Do not tie the terminals with the tape too tight.
●
If any clearance or over-tightening may cause condensation.
!
CAUTION
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.
To enhance 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.
●
Please use exclusive
●
A
tool for refrigerant R32
Copper pipe
A (mm)
Conventional fl are tool
Clutch type
Clutch type
Wing nut type
0.0 ~ 0.5
1.0 ~ 1.5
1.5 ~ 2.0
4
0.0 ~ 0.5
1.0 ~ 1.5
1.5 ~ 2.0
0.0 ~ 0.5
1.0 ~ 1.5
1.5 ~ 2.5
0.0 ~ 0.5
1.0 ~ 1.5
1.5 ~ 2.5
!
CAUTION
Be sure that the drain hose is not loosely connected or bend or proper
condition like left fi gure.
Flare nut
You are free to choose the side (left or right) for the installation of drain hose.
Please ensure the smooth fl ow of condensed water of the Indoor unit during
Wrench
installation. (Carelessness may result in water leakage.)
Torque wrench
Pull at the
and
●
1
as shown by arrows to remove the cover.
(H-LINK RAC Adapter. Dry contact, Wired Remote Controller)
For cable connection to control P.W.B., you
●
need to remove front cover and electrical box
cover.
Each connecting location is as below.
Dry contact: CN6
1
H-LINK RAC Adapter: CN7B
2
Wired Remote Controller: CN20
3
Earth
●
Please check and confi rm manuals attached to
each optional parts for more connection details.
Connecting cord
●
Please check service manual about how to set
from remote controller.
Cord band
●
You can refer to this installation manual how
to remove and re-attach the front cover.
●
Please be careful not to damage lead wires
by edge of plate when connecting the optional
parts.
●
Please do the operation test after the
connection.
Cover
Claw
Claw
Screw
Screw
Outer
Torque N·m
dia.of pipe
Small dia. side
6.35 (1/4")
14.0 – 18.0 (140 ~ 180)
Large dia. side
9.52 (3/8")
33.0 – 42.0 (330 ~ 420)
12.70 (1/2")
50.0 – 62.0 (500 ~ 620)
15.88 (5/8")
63.0 – 77.0 (630 ~ 770)
6.35 (1/4")
Small dia. side
19.6 – 24.5 (200 ~ 250)
Valve
9.52 (3/8")
19.6 – 24.5 (200 ~ 250)
head cap
Large dia. side
12.7 (1/2")
29.4 – 34.3 (300 ~ 350)
15.88 (5/8")
29.0 – 31.0 (296 ~ 316)
12.3 – 15.7 (125 ~ 160)
Valve core cap
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.
Heat Insulation and Finish of the Piping
Sleeve of
Insulation material for pipe connection
protection pipe
Putty
Installation of Drain Hose
Ditch
Condensed
water pond
Condensed water pond
Bending upwards
CAUTION
!
!
CAUTION
Method to remove the low cover
in the directions
2
2
How to connect the optional parts
CN20
CN7B
CN6
2
HOW TO REMOVE INDOOR UNIT
Push up the (PUSH) sections at the bottom of the indoor unit and
●
pull the bottom plate towards you. Then the claws are released
from the stationary plate.
(The (PUSH) sections are indicated by 2 arrows as below fi gure)
[PUSH] mark positions
CAUTION
!
Please remove this spacer as it is
for transportation purposes only.
Vibration and noise might occur if it
is not removed.
(kgf
·
cm)
Putty
1
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