Restrictions On Refrigerant Pipe Size - Mitsubishi Electric PUHY-P250YNW-A Service Handbook

[2-8 Restrictions on Refrigerant Pipes ]
2-8-2

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)
250 model
*1 Use ø12.7 [1/2"] pipes if the piping length exceeds 90 m [295 ft].
(2) Size of the refrigerant pipe between the first branch and the indoor unit (indoor unit pipe size)
model
250 model
500 model
20
- chapter 2
Liquid pipe size (mm) [inch]
ø9.52 [3/8"] *1
Pipe diameter (mm) [inch]
Liquid pipe ø9.52 [3/8"]
Gas pipe ø22.2 [7/8"]
Liquid pipe ø15.88 [5/8"]
Gas pipe ø28.58 [1-1/8"]
Gas pipe size (mm) [inch]
ø22.2 [7/8"]
BS_02_C