Midea MAD020T1N1S1 Technical Manual page 49

Midea Precision AC Technical Manual
 Do not open the system pipeline more than 15 minutes, or it will lead to freeze the cooling oil and
influence the usage lifespan of the key parts in the system and the system operation stability.
 The horizontal part of the gas pipe should be sloped down part after led out from the compressor,
its gradient at least should be 1:200 (every 1m should drop 5mm). But if the air exhaust pipe is
located at the place of cooling equipments (including under the block up floor) then it should be
insulated.
 Considering the diameter will cause the system pressure drop loss, the copper pipes diameters
connecting between indoor and oudoor units.
Indoor unit model
MAD020T1N1S1
MAD025T1N1S1
MAD030T1N1S1
MAD035T1N1S1
MAD040T2N1S1
MAD045T1N1S1
MAD050T2N1S1
MAD060T2N1S1
MAD070T2N1S1
MAD080T2N1S1
MAD090T2N1S1
Notes:
If the pipe length is more than 60m, please consult the manufacturer.
 When the pipe equivalent length is more than 30m, then it needs to install the extended
components. During the extended components installation, to prevent pipelines open, it
suggested that install the extended the electromagnetic valve body components on the outside
of the liquid pipe ball valve, or int the outside or the bottom of the equiment.
 So in the electromagnetic valve installation operation process, it do not need to cut the indoor
pipeline, and after the whole system installation, then open the ball valve for pressurizing and
vacuum operation, to avoid moisture absorption of the compressor frozen oil, and ensure that
48
Length 10m
Gas pipe 22mm
Liquid pipe 13mm
Gas pipe 22mm
Liquid pipe 13mm
Gas pipe 22mm
Liquid pipe 13mm
Gas pipe 22mm
Liquid pipe 13mm
Gas pipe 22mm
Liquid pipe 13mm
Gas pipe 22mm
Liquid pipe 16mm
Gas pipe 22mm
Liquid pipe 13mm
Gas pipe 22mm
Liquid pipe 13mm
Gas pipe 22mm
Liquid pipe 13mm
Gas pipe 22mm
Liquid pipe 16mm
Gas pipe 22mm
Liquid pipe 16mm
20m 30m
22mm 22mm
13mm 13mm
22mm 22mm
13mm 16mm
22mm 22mm
16mm 16mm
22mm 22mm
16mm 16mm
22mm 22mm
13mm 13mm
22mm 25mm
16mm 16mm
22mm 22mm
13mm 16mm
22mm 22mm
16mm 16mm
22mm 22mm
16mm 16mm
22mm 25mm
16mm 16mm
22mm 25mm
16mm 16mm
MCAC-PDSM-2013-01
40m 50m
22mm 22mm
13mm 16mm
22mm 25mm
16mm 16mm
22mm 25mm
16mm 16mm
22mm 25mm
16mm 16mm
22mm 22mm
13mm 13mm
25mm 28mm
16mm 19mm
22mm 25mm
16mm 16mm
22mm 25mm
16mm 16mm
22mm 25mm
16mm 16mm
25mm 28mm
16mm 19mm
25mm 28mm
16mm 19mm
60m
22mm
16mm
25mm
16mm
25mm
16mm
25mm
16mm
22mm
16mm
28mm
19mm
25mm
16mm
25mm
16mm
25mm
16mm
28mm
19mm
28mm
19mm