Mitsubishi Electric MXZ-8A140VA1 Technical & Service Manual page 26

■ Pipe size (Branch box-Indoor unit) *Case of M series or S series Indoor unit
Indoor unit
(kW)
type
Liquid
Pipe size
(mm)
Gas
When using 60 type indoor unit of MEXZ series, use the flare nut in the indoor unit accessory for the gas side con-
necting of indoor unit.
Do not use the flare nut (gas side) attached to the indoor unit. If it is used, a gas leakage or even a pipe extraction
may occur.
■ Pipe size (Branch box-Indoor unit) *Case of P series Indoor unit
Indoor unit
(kW)
type
Pipe size Liquid
(mm)
Gas
When using 35, 50 type indoor unit of P series, use the flare nut (for R410A) attached to the indoor unit.
Do not use the flare nut (for R407C) in the indoor unit accessory. If it is used, a gas leakage or even a pipe
extraction may occur.
(1) Valve size for outdoor unit
For liquid
For gas
(2) Valve size for branch unit
Liquid pipe
UNIT
Gas pipe
Liquid pipe
UNIT
Gas pipe
Liquid pipe
UNIT
Gas pipe
Liquid pipe
UNIT
Gas pipe
Liquid pipe
UNIT
Gas pipe
3- branch type is only for
Different-diameter joint (optional parts) (Fig.7-1)
Connected pipes diameter
Model name
9.52
MAC-A454JP
12.7
MAC-A455JP
12.7
MAC-A456JP
6.35
PAC-493PI
PAC-SG76RJ-E 9.52
15 20 22
6.35 6.35 6.35
9.52 9.52 9.52
35 50
6.35 6.35
12.7 12.7
, , and unit.
Diameter A
mm mm
12.7 9.52
9.52 12.7
15.88 12.7
9.52 6.35
15.88 9.52
25 35 42
6.35 6.35 6.35
9.52 9.52 9.52
60 71
9.52 9.52
15.88 15.88
9.52 mm
15.88 mm
6.35 mm
9.52 mm
6.35 mm
9.52 mm
6.35 mm
9.52 mm
6.35 mm
9.52 mm
6.35 mm
12.7 mm
Diameter B
mm
12.7
9.52
A
15.88
Fig.7-1
9.52
15.88
26
50 60 71
6.35 6.35 9.52
12.7 15.88 15.88
Conversion formula
1/4 inch
6.35mm
3/8 inch
9.52mm
1/2 inch 12.7mm
B
5/8 inch
15.88mm
3/4 inch
19.05mm
80
9.52
15.88