Gree GMV-ND45T/A-T Owner's Manual page 18

(10) During the installation, distance from soft drain pipe to the gasket is C when the bolt is tightened.
It is not allowed to apply PVC or other related glue in the joints of two ends of drain pipe.
GMV-ND28~50T/A-T
GMV-ND56~160T/A-T
4.3.3 Test of Drainage System
(1) Please test drainage system after electric work is finished.
Inject approximately 1L purified water to drain pan from air vent, ensure that not to splash the water
over the electrical components (e.g. water pump etc.).
1) In case of commissioning finished, please energize the IDUs and switch to cooling or dry
mode, meanwhile, the water pump operates, you can check the draining through the
transparent part of drain socket.
2) If communication wire is not connected, communication malfunction "C0" will occur after 60s
of energizing. In this case, the water pump operates automatically. Check if the water pump
drains normally drains normally through drainage port. The water pump will stop automatically
after running for 10min.
(2) During the test, please carefully check the drainage joint, make sure no any leakage occur.
(3) It's strongly recommend to do the drain test before ceiling decoration.
Multi Variable Air Conditioners Cassette Type Indoor Unit
Model
Fig.4.3.5
Fig.4.3.6
14
Unit:mm
C
10±3
15±3