What differentiates "system-dependent" and "self-contained" recovery devices in refrigeration systems?
A
the system compressor must be working to use system-dependent devices, the system compressor may or may not be operational when self-contained devices are used
B
self-contained recovery devices usually contain a compressor, system-dependent recovery devices do not
C
self-contained recovery devices can only be used on large CFC and HCFC units
D
there is no difference between the devices
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Question 1 / 205eccef9dbacbc34ba4d46119
Question 1 of 205eccef9dbacbc34ba4d46119
What differentiates "system-dependent" and "self-contained" recovery devices in refrigeration systems?