Midea MTB1T-96CWN1 Technical & Service Manual page 62

Midea R410A T3 50Hz Top-discharge Series

Use high-pressure nitrogen to clean the pipelines. Do not use the refrigerant of the outdoor unit
for cleaning.

Pipes size of the units:
MTB1T-96CWN1
MTB1T-96HWN1
MHB1T-96CWN1
MHB1T-96HWN1
MFA3T-96CRN1
MFA3T-96HRN1
Notes: The pipe joint for connecting pipes of different diameters is needed. If the pipe length is
not more than 30m, please use the straight pipe as the accessories in the indoor and outdoor
unit. If the pipe length is more than 30m, you should prepare it yourself.

Allowed length of refrigerant pipe and height difference.
Max. actual length of pipe (L)
Max. height difference between indoor
and outdoor unit

Do not increase or decrease piping sizes.
61
Model
(pipe length L≤30m)
Liquid pipe
Φ9.52mm
Φ12.7mm
(pipe length
30<L≤50m)
Outdoor unit (upper)
Outdoor unit (lower)
MCAC-UTSM-201707
Gas pipe
Φ25.4mm
(pipe length L≤30m)
Φ28.6mm
(pipe length
30<L≤50m)
Allowed value
50m
25m
30m