Pipe Installations For The Condensate Water System; Pipes; Requirements On Installation - Gree Ultra Heat GMV Multi VRF Heat Pump Series Service Manual

Ultra Heat GMV VRF Technical Service Manual

2 PIPE INSTALLATIONS FOR THE CONDENSATE WATER SYSTEM

2.1 Pipes

All of the selected condensate pipes must be consistent with local laws and regulations.

2.2 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
External Diameter of the Pipe
Distance between Horizontal
Pipes
Distance between Vertical Pipes
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.
(4) When connecting three-way pipes, the two-way straight pipes must be laid on the same slope,
as shown in the following figures.
(5) The condensate water pipe cannot be tied with the refrigerant pipe.
(6) A ventilation hole must be provided on the top of the drain pipe to ensure smoother discharge of
condensate water.
Φ≤25.4
mm
Φ≤1
inch
mm 800
inch 31-1/2
mm
inch
50
31.8＞Φ＞25.4
1-1/4＞Φ＞1
1000
39-3/8
1500
59
INSTALLATION
Φ≥31.8
Φ≥1-1/4
1500
59
2000
78-3/4