Gree GUD50P/B-S

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DC Inverter U-match Series Duct Type Unit

Item

Model

Size of Fitting

Pipe(inch)

Maximum

pipe

length(m)

Biggest drop between

indoor and outdoor

units(m)

Liquid pipe

Gas pipe

GUD71PH/B-S

GUD71PHS/B-S

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50 25

GUD100PH/B-S

GUD100PHS/B-S

65 30

GUD125PH/B-S

GUD125PHS/B-S

75 30

GUD140PH/B-S

GUD140PHS/B-S

75 30

GUD160PH/B-S

GUD160PHS/B-S

75 30

Connection pipe should adopt water-proof insulating material. Its wall thickness

should be 0.5-1.0mm and the pipe wall should be able to withstand 6.0MPa. The

longer the connection pipe is the worse cooling and heating performance it has.

When the drop between indoor and outdoor units is larger than 10m, an oil

return bend should be added every 6m.

The requirement on the adding of oil return bend is as below:

(1) Outdoor unit is beneath the indoor unit.

There’s no need to add non-return bend at the lowest or highest position of the

vertical pipe, as shown below:

Gree GUD50P/B-S - Page 27