GMV5 Home DC Inverter Multi VRF Units 
162 
 
Install drain trap connectors as shown in the following figure; 
Install a drain trap connector for each unit; 
The drain trap connector shall be installed in a way that facilitates trap cleaning. 
 
13)During condensate water pipe installation, ensure a distance above 500 mm between the 
pipe and the electric box of the unit for maintenance. In a case when the space is not enough, the 
final piping way must be determined by the technical personnel. 
 
10.1.3 Requirements on installation of drain pipes for different types of 
IDUs 
10.1.3.1 Drain pipe installation for hidden duct type IDU 
1)Ensure an inclination degree of greater than 1% when connecting the drain pipe to the IDU. 
2)When connecting the drain pipe to that of the IDU, fix the pipes with the bands instead of 
using the glue to facilitate further maintenance. 
3)There is a condensate water outlet on both sides of the IDU. After one condensate water 
outlet is determined, use the rubber stopper to block the other outlet. Tie it with threads and strap 
with insulation materials to prevent leakage. 
4)The connection between the drain pipe and that of the IDU is shown in the following figure: 
 
5)Apply insulation materials to the condensate water pipe joints to prevent dewing. Insulation 
for connection between the drain pipe and that of the IDU is shown in the following figure: