HVAC Notes:

1 : 12.7/6.4

12.7 --- Denotes the diameter of the Gas/Suction Pipe.

6.4 --- Denotes the diameter of the Liquid/Refrigerant Pipe.

2 : Semi Hard Pipes --- From ODU to the refnets

Soft Pipes ----- From Unit to refnets

3 : Control Cabiling

It is the electrical cable from ODU and connecting all the units indoor (The wire length is

taken continuous i.e a loop of wire)