Industry and Federal guidelines require that the vacuum level in an evacuated air conditioning system be measured in __________.
A) inches of mercury
B) cfm
C) microns
D) psig
Correct Answer:
Verified
Q13: In a vacuum of 29.92"Hg, the micron
Q14: For most residential systems, a _ cfm
Q15: How often should the vacuum pump oil
Q16: If moisture is not removed from the
Q17: Freezing moisture in the system can lead
Q19: _ will not change from a vapor
Q20: Noncondensable gases have a negative effect on
Q21: To speed the evacuation process, _ can
Q22: When evacuating a system, the technician should
Q23: A _ is made up of two
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