Part 3 
System Design and 
Installation 
 
1 Preface to Part 3 ...................................................................................... 78 
2 Unit Placement and Installation ............................................................... 79 
3 Refrigerant Piping Design ......................................................................... 82 
4 Refrigerant Piping Installation .................................................................. 88 
5 Drain Piping ............................................................................................. 99 
6 Insulation ............................................................................................... 102 
7 Charging Refrigerant .............................................................................. 104 
8 Electrical Wiring ..................................................................................... 106 
9 Installation in Areas of High Salinity ....................................................... 109 
10 Commissioning .................................................................................... 110 
11 Appendix to Part 3 – System Commissioning Report ............................ 112