Restrictions On Refrigerant Pipe Size - Mitsubishi Electric PUHY-HP200YNW-A Service Handbook

[2-10 Restrictions on Refrigerant Pipes ]
2-10-2

Restrictions on Refrigerant Pipe Size

(1) Diameter of the refrigerant pipe between the outdoor unit and the first branch (outdoor unit pipe
size)
Outdoor unit set name
(total capacity)
200 model
250 model
400 model
500 model
*1. Use ø12.7 [1/2"] pipes if the piping length to the farthest indoor unit exceeds 90 m [295 ft].
(2) Size of the refrigerant pipe between the first branch and the indoor unit (indoor unit pipe size)
model
10 - 50 models
63 - 140 models
200 model
250 model
400 model
500 model
BS_02_M
Liquid pipe size (mm) [inch]
ø9.52 [3/8"]
*1
ø9.52 [3/8"]
ø12.7 [1/2"]
ø15.88 [5/8"]
Pipe diameter (mm) [inch]
Liquid pipe ø6.35 [1/4"]
Gas pipe ø12.7 [1/2"]
Liquid pipe ø9.52 [3/8"]
Gas pipe ø15.88 [5/8"]
Liquid pipe ø9.52 [3/8"]
Gas pipe ø19.05 [3/4"]
Liquid pipe ø9.52 [3/8"]
Gas pipe ø22.2 [7/8"]
Liquid pipe ø12.7 [1/2"]
Gas pipe ø28.58 [1-1/8"]
Liquid pipe ø15.88 [5/8"]
Gas pipe ø28.58 [1-1/8"]
Gas pipe size (mm) [inch]
ø22.2 [7/8"]
ø22.2 [7/8"]
ø28.58 [1-1/8"]
ø28.58 [1-1/8"]
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