Pipe Installation And Insulation For The Condensate Water System And Insulation For The Ducts - Gree GMV-S120WL/A-S Service Manual

2）Wear the insulation sleeve before connecting refrigerant pipes. Users cannot cut the
insulation material apart and then wrap up with ties after connecting the pipes by welding.
3）Specifications of the insulation sleeve must match with that of the refrigerant pipes.
4）Reserve a distance of about 200mm near the welding point to protect the insulation sleeve
during welding. After performing the air-tightness test, perform insulation to the welding point
separately to ensure continuity of the insulation sleeve.
5）The insulation layer cannot crack during construction. Bond the insulation material joints
with special glue and then wrap them with electrical adhesive tape. The width of the adhesive tape
must be 50mm or more to ensure secure connection.
6）Use glue to bond the insulation material at the water outlet to the unit to prevent dewing.
7）Wrap joints of indoor/outdoor units with insulation materials. There must be no gap
between the joint and the wall of the indoor/outdoor unit, as shown in the following figure.
10.Pipe Installation and Insulation for the
Condensate Water System and Insulation
for the Ducts
10.1 Pipe Installation and Insulation for the Condensate Water
System
10.1.1 Pipes
Generally, U-PVC water supply pipes bonded with special glue are adopted as condensate
water pipes. PP-R, PP-C, and hot galvanized steel pipes can also be adopted. Aluminium plastic
compound pipes cannot be used.
10.1.2 Requirements on installation
1）Determine the direction and elevation of a condensate water pipe before installing it. Avoid
overlapping it with other pipes to ensure straight inclination. The clamp of the pipe hanger is fixed
outside the insulation layer. The height of the clamp can be adjusted.
2）Distance between hangers:
There are at least two hangers for each vertical pipe.
3）The inclination degree of the condensate water pipe must be above 1% and that of the
main pipe cannot be lower than 0.3%. Adverse slopes are not allowed.
GMV5 Home DC Inverter Multi VRF Units
External Diameter
of the Pipe (mm)
Distance between
Horizontal Pipes
(mm)
Distance between
Vertical Pipes (mm)
Φ≤25
32＞Φ≥25
800 1000
1500
160
Φ≥32
1500
2000