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RTAC-SVX01F-EN 59
Installation - Mechanical
Remote Evaporator Option
ƽ WARNING
Hazard of Explosion!
Use only dry nitrogen with a pressure regulator for pressurizing unit. Do
not use acetylene, oxygen or compressed air or mixtures containing
them for pressure testing. Do not use mixtures of a hydrogen containing
refrigerant and air above atmospheric pressure for pressure testing as
they may become flammable and could result in an explosion.
Refrigerant, when used as a trace gas should only be mixed with dry
nitrogen for pressurizing units. Failure to follow these recommendations
could result in death or serious injury or equipment or property-only
damage.
For field evacuation, use a rotary-type vacuum pump capable of pulling a vacuum of
500 microns or less. Follow the pump manufacturer's instructions for proper use of
the pump. The line used to connect the pump to the system should be copper and be
the largest diameter that can be practically used. A larger line size with minimum flow
resistance can significantly reduce evacuation time.
Use the ports on the suction service valves and the liquid line shutoff valves for
access to the system for evacuation. Ensure that the suction service valve, the liquid
line shutoff valve, the oil line shutoff valve and any field installed valves are open in
the proper position before evacuating.
Insulate the entire suction line and the suction accumulator line. Where the line is
exposed to the weather, wrap it with weatherproof tape and seal with weatherproof
compound.
Figure 29 Remote Evaporator