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42HQE009/012/018/022-38YE009/012/018/022
Outdoor unit installation
Refrigerant piping connection
Flaring
90°C
Oblique
Roughness
• Cut a pipe with a pipe cutter.
• Insert a flare nut into a pipe and flare the pipe.
Outer diam.
(mm)
Ø 6.35
Ø 9.53
A
Ø 12.7
Ø 15.88
Tightening Connection
• Align pipes to be connected.
• Sufficiently tighten the flare nut with fingers, and then tighten it
with a spanner and torque wrench as shown.
CAUTION
• Excessive torque can break nut depending on installation
conditions.
Outer diam.
Tightening torque
Ø 6.35
(160kgf.cm)
Ø 9.53
(300kgf.cm)
Ø 12.7
(300kgf.cm)
Ø 15.88
(750kgf.cm)
Terminal block of outdoor unit
38YE009/012/018
Wire-holding Board
Connective cable
(1, 2, 3, 4, 5)
CDU signal wire
(7, 8)
GB - 8
Burr
A (mm)
Max.
Min.
1.3
0.7
1.6
1.0
1.8
1.0
2.4
2.2
Additional tightening
(N.cm)
torque (N.cm)
1570
1960
(200kgf.cm)
2940
3430
(350kgf.cm)
2940
4410
(450kgf.cm)
7360
7850
(800kgf.cm)
(Cooling & heating type)
10 cm
Wiring connection
1. Remove the electric parts cover from the outdoor unit.
2. Connect the connective cables to the terminals as identified
with their respective matched numbers on the terminal block of
indoor and outdoor units.
3. To prevent the ingress of water, from a loop of the connective
cable as illustrated in the installation diagram of indoor and
outdoor units.
4. Insulate unused cords (conductors) with PVC-tape. Process
them so they do not touch any electrical or metal parts.
CAUTION:
Wrong wiring connections may cause some electrical parts to
malfunction. A disconnection device having an air gap contact
separation in all active conductors should be incorporated in the
fixed wiring according to the National Wiring Regulation. All wiring
must comply with local and national electrical codes and be
installed by qualified and skilled electrician.
Cover
Screw
Terminal block of outdoor unit
Connective cable
40 cm
38YE022
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