R410A All DC Inverter V5 X Series 50Hz      MCAC-VTSM-2015-10 
82 Installation 
Part 4 Installation 
1.  Units installation .......................................................................................... 83 
2.  Air ventilation assembly installation .......................................................... 87 
3.  Refrigerant piping selection ........................................................................ 91 
4.  Refrigerant pipe installation ........................................................................ 98 
5.  Drainage pipe engineering ........................................................................ 107 
6.  Duct engineering ........................................................................................ 111 
7.  Heat Insulation Engineering ...................................................................... 113 
8.  Caution for brazing .................................................................................... 115 
9.  Remove dirt or water in the piping ........................................................... 115 
10.  Gas tightness test .................................................................................... 115 
11.  Vacuum Drying ......................................................................................... 117 
12.  Additional refrigerant charge .................................................................. 118 
13.  Electric wiring installation ....................................................................... 119 
14.  Running test ............................................................................................. 123