Pipe Size Selection - Mitsubishi Electric MXZ-18NV Service Manual

8.3 PIPE SIZE SELECTION

MXZ-18NV - MXZ-18NV -
E1
Refrigerant pipe diameter is different according to indoor unit to be connected. When using extension pipes, refer to the
table below.
When diameter of refrigerant pipe is different from that of outdoor unit union, use optional L-joint. For further information on
L-joint, see page 62.
Indoor unit
class Pipe diameter
Liquid 6.35(1/4)
07/09
Gas 9.52(3/8)
Liquid 6.35(1/4)
12
Gas 12.7(1/2)
MXZ-32NV - MXZ-32NV -
E1
Refrigerant pipe diameter is different according to indoor unit to be connected. When using extention pipes,refer to the tables
below.
When diameter of refrigerant pipe is different from that of outdoor unit union, use optional Different-diameter pipe. For further
information on Different-diameter pipe,see page 62.
Indoor unit
class Pipe diameter
Liquid 6.35(1/4)
07/09
Gas 9.52(3/8)
Liquid 6.35(1/4)
12(13)
Gas 12.7(1/2)
Liquid 6.35(1/4)
18
Gas 15.88(5/8)
E2
Extention pipe diameter
Liquid 6.35(1/4)
Gas 9.52(3/8)
Liquid 6.35(1/4)
Gas 12.7(1/2)
E2
Extention pipe diameter
Liquid 6.35(1/4)
Gas 9.52(3/8)
Liquid 6.35(1/4)
Gas 12.7(1/2)
Liquid 6.35(1/4)
Gas 15.88(5/8)
Outdoor unit union diameter
For
Liquid
Indoor unit A
Gas
Liquid
Indoor unit B
Gas
Outdoor unit union diameter
For
Liquid
Indoor unit A
Gas
Liquid
Indoor unit B
Gas
Liquid
Indoor unit C
Gas
Liquid
Indoor unit D
Gas
Unit : mm (inch)
6.35(1/4)
9.52(3/8)
6.35(1/4)
9.52(3/8)
Unit : mm (inch)
6.35(1/4)
12.7(1/2)
6.35(1/4)
12.7(1/2)
6.35(1/4)
9.52(3/8)
6.35(1/4)
9.52(3/8)
17