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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
1100 mm
radius to form an arc
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
Drain hose
Cable
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
10mm
Green + Yellow (ground)
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 fire.
HOW TO REMOVE OR ATTACH THE FRONT COVER
How to Remove the Front Cover
Remove the front panel
Arm
Move
Push
Push the end of the right-side arm outward to release the tab.
Move the left-side arm outward to release the left tab, and then pull the
panel towards you.
2
Remove the filters.
3
After removing 3 screws, remove the cover of electric box, 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 figure and remove the cover.
Claw
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INSTALLATION AFTER CONNECTION OF REFRIGERATING PIPES
● The refrigerating pipe should be adjusted to fit 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, fit 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
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 flaring, please put on the flare 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
Pipe Connection
● In case of removing flare nut of a indoor unit, first remove a nut of small diameter
side, or a seal cap of big diameter side will fly out. Free from water into the piping
when working.
● Be sure to tighten the flare nut to the specified torque with a torque wrench.If the
flare 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 fix the
terminal cover with screw.
How to Attach the Front Cover
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.
2
Assemble the cover of electric box.
Tighten the 3 screws.
3
4
Install the filter.
5
Attaching the Front Panel
● 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.
Binding band
Binding band can be
installed to whichever side
Insulation
of the installation points.
pipe (must be
However, it is recommended
wrapped with
to attach it on the right side
vinyl tape at
viewing from the rear.
every 120mm)
Trimming tool
● The connected terminals should be completed sealed with heat insulator
and then tied up with rubber strap.
● Do not tie the terminals with the tape too tight.
Copper pipe
If any clearance or over-tightening may cause condensation.
● Please tie the pipe and power line together with vinyl tape as shown in
! CAUTION
the figure 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 tool
A
for refrigerant R32
Copper pipe
A (mm)
Conventional flare tool
Clutch type
Clutch type
Wing nut type
0.0 ~ 0.5
1.0 ~ 1.5
1.5 ~ 2.0
0.0 ~ 0.5
1.0 ~ 1.5
1.5 ~ 2.0
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
improper conditions like above figures.
Flare nut
You are free to choose the side (left or right) for the installation of drain hose.
Please ensure the smooth flow of condensed water of the Indoor unit during
installation. (Carelessness may result in water leakage.)
Wrench
Torque wrench
● Pull at the
and
shown by arrows to remove the cover.
How to connect the optional parts
(H-LINK RAC Adapter, Dry contact, Wired Remote Controller, Run status and
● 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
H-LINK RAC Adapter: CN7B
Wired Remote Controller : CN20
Relay kit for run status and alarm output:
Earth
CN25
Connecting cord
● Please check and confirm manuals attached to
each optional parts for more connection details.
● Please check service manual about how to set
Cord band
from remote controller.
● 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
Claw
Screw
Screw
Outer dia.of
pipe
Small dia. side
6.35 (1/4")
14.0 – 18.0 (140 ~ 180)
9.52 (3/8")
33.0 – 42.0 (330 ~ 420)
Large dia. side
12.70 (1/2")
50.0 – 62.0 (500 ~ 620)
Small dia. side
6.35 (1/4")
19.6 – 24.5 (200 ~ 250)
Valve head
9.52 (3/8")
19.6 – 24.5 (200 ~ 250)
cap
Large dia. side
12.7 (1/2")
29.4 – 34.3 (300 ~ 350)
Valve core cap
12.3 – 15.7 (125 ~ 160)
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 as
2
alarm output)
CN20
CN7B
CN6
CN25
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
figure)
[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.
Torque N·m
(kgf · cm)
Putty
1
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