Burr
Copper pipe
Spare reamer
Pipe cutter
3-2. FLARING WORK
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• Put the end of the copper pipe to downward direction
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3-3. PIPE CONNECTION
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Indoor unit connection
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Pipe diameter
(mm)
Nut
(mm)
A (mm)
Tightening torque
Clutch
type tool
for R32,
R410A
Clutch type
tool for
R22
Wing nut
type tool for
R22
N•m
kgf•cm
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350 to 420
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500 to 575
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Copper
pipe
Good
Tilted Uneven Burred
No good
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Clutch type
Flaring tool
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Smooth all
around
Even length
all around
Inside is shin-
ing without any
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Flare nut
Die
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3. OUTDOOR UNIT INSTALLATION
Copper pipe
Wing nut type
WARNING
When installing the unit, securely connect the refrigerant
pipes before starting the compressor.
3-1. CONNECTING WIRES FOR OUTDOOR UNIT
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2) Loosen terminal screw, and connect indoor/outdoor unit connecting wire (A) from the
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• Be sure to attach each screw to its correspondent terminal when securing the cord
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35 mm
15 mm
Lead wire
Power supply cord (K)
Outdoor unit connection
Connect pipes to stop valve pipe joint of the outdoor unit in the
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• For tightening, use a torque wrench or spanner and use the
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3-4. INSULATION AND TAPING
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ture and humidity are high, wind additional commercially sold insulation to prevent
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Cord clamp
Cord clamp
Power supply
cord (K)
Power supply cord (K)
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Indoor/outdoor
unit connect-
ing wire (A)
Indoor/outdoor
unit connecting
wire (A)
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WARNING
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