52
①
Mechanic expansion valve
②
Filter
③
Mechanic expansion valve
④
Observation glass
⑤
One-way control valve
⑥
Accumulator
⑦
Base
⑧
4-way valve
⑨
Pipe bracket
⑩
Safety valve
⑪
Compressor
⑫
Observation glass
⑬
Filter
⑭
Compressor
⑮
One-way control valve
⑯
Mechanic expansion valve
⑰
4-way valve
⑱
Pipe bracket
⑲
Safety valve
⑳
Base
21 Outer coil
22 Inner coil
23 Partition metal sheet
24 Outer coil
25 Bottom metal sheet
10.1.8.Status of Gas Charge in the Circuit
It is the first check to be made in a cooling circuit. If the amount of the gas charge within the system is not
proper, then the measurements for other parameters will remain meaningless. In order to check the gas