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38GL_M...G / 38YY(S)_M...G
Connections
Model
38GL
Indoor
unit
mm
A1
6.35
2M12G
A2
6.35
A
6.35
2M18G
B
6.35
A
6.35
2M24G
B
6.35
A1
6.35
3M21G
A2
6.35
B
6.35
A1
6.35
3M30G
A2
6.35
B
6.35
A1
6.35
A2
6.35
4M24G
B1
6.35
B2
6.35
A
6.35
2M36G
B
6.35
A
6.35
2M48G
B
6.35
Notes
1) When the indoor unit is as large as 009, use Ø 9,52 mm (3/8") pipes supplied with the flare tap adapter.
Important: do not connect the indoor unit size 012 to circuit B.
2) When the indoor unit is provided with a 15.87 mm (5/8") refrigerant connection, use Ø 12.70 mm pipes supplied with flare tap adapter.
3) All fittings are flare type.
4) Use only refrigeration grade pipes, (Cu DHP type according to ISO 1337), seamless, degreased, deoxidized and suitable for operating pressures of at
least 4200 kPa.
Under no circumstances must sanitary type annealed copper pipe be used.
L 1
GB - 4
Pipe diameter
Liquid
Gas
(Liquid)
(Suction)
(inches)
mm
(inches)
(1/4")
9.52
(1/4")
12.70
(1/2")
(1/4")
9.52
(1/4")
9.52
(1/4")
12.70
(1/4")
12.70
(1/4")
9.52
(1/4")
12.70
(1/2")
(1/4")
9.52
(1/4")
9.52
(1/4")
12.70
(1/2")
(1/4")
12.70
(1/4")
9.52
(1/4")
12.70
(1/2")
(1/4")
9.52
(1/4")
12.70
(1/2")
(1/4")
12.70
(1/4")
12.70
(1/4")
12.70
(1/2")
(1/4")
12.70
(1/2")
A 2
A 2
L2
H
H
H
Model
38YY(S)
Indoor
(3/8")
2M18G
(note 1)
(3/8")
2M21G
(3/8")
(1/2")
2M24G
(1/2")
(3/8")
2M36G
(note 1)
(3/8")
2M48G
(3/8")
(note 1)
(1/2")
(3/8")
(note 1)
(3/8")
(note 1)
(1/2")
(1/2")
(note 2)
(note 2)
B 2
B / B 1
L4
L3
H
H
H
L 1
Pipe diameter
Liquid
(Liquid)
unit
mm
(inches)
A
6.35
(1/4")
B
6.35
(1/4")
A
6.35
(1/4")
B
6.35
(1/4")
A
6.35
(1/4")
B
6.35
(1/4")
A
6.35
(1/4")
B
6.35
(1/4")
A
6.35
(1/4")
B
6.35
(1/4")
H
H
A 2
Outdoor unit
Indoor unit circuit A
Indoor unit circuit A
Indoor unit circuit B
Indoor unit circuit B
Gas
(Suction)
mm
(inches)
9.52
(3/8")
9.52
(3/8")
9.52
(3/8")
12.70
(1/2")
12.70
(1/2")
12.70
(1/2")
12.70
(1/2")
12.70
(1/2")
(note 2)
12.70
(1/2")
12.70
(1/2")
(note 2)
L4
H
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