MCAC-VTSM-2015-10      R410A All DC Inverter V5 X Series 50Hz 
Installation                                                                                                                                                         107 
 
To avoid oil accumulation in the outdoor unit, please install the branching pipes properly. 
5.  Drainage pipe engineering 
5.1 Installation essentials 
5.1.1  Installation principles 
1) Slope; 2) reasonable pipe diameter; 3) nearby discharge 
5.1.2  Installation requirements 
1. Before installing condensation piping, determine its route and elevation to avoid interference with other 
pipes and ensure a smooth slope. 
2. Make sure two horizontal condensation pipes not encounter to avoid back flow or other complications. 
a. Correct connection: 
10°
10°
A
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U-shaped branching pipe
Horizontal surface
A direction view