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For Combined Models: RAS-NP4US+RAS-NP4CTS through RAS-NP8US+RAS-NP8CTS
For Combined Models: RAS-NP9US + RAS-NP9CTS through RAS-NP15US + RAS-NP15CTS
Do not charge the non-specified refrigerants or others in the refrigerant cycle of the unit as
follows when performing a leakage test or an airtight test:
● Hydrocarbon Refrigerants such as Propane or etc.
● Oxygen, Flammable Gases such as Acetylene or etc.
● Poisonous Gases.
This action may cause mechanical troubles, malfunction and failure, and in the worst case,
it endangers safety seriously and may cause a fire or an explosion.
Fig. 13. Evacuation and Refrigerant Charge
REFRIGERANT PIPING
Mark
Name
1
Compressor
2
Condenser
3
Liquid Outlet Stop Valve
4
Accumulator
5
Capillary Tube
6
Evaporator
7
Gas Inlet Stop Valve
8
Check Joint (High Side)
9
Check Joint (Low Side)
10
High Pressure Switch
11
Low Pressure Switch
12
Strainer
: Field Refrigerant Pipe
* : Field-Supplied
Mark
Name
1
Compressor
2
Condenser
3
Liquid Outlet Stop Valve
4
Accumulator
5
Capillary Tube
6
Evaporator
7
Gas Inlet Stop Valve
8
Check Joint (High Side)
9
Check Joint (Low Side)
10
High Pressure Switch
11
Low Pressure Switch
12
Strainer
: Field Refrigerant Pipe
* : Field-Supplied
26
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