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Why are time-delay fuses or HVACR-rated circuit breakers used?

khalasar99

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6 years ago

Why are time-delay fuses or HVACR-rated circuit breakers used?

Why are time-delay fuses or HVACR-rated circuit breakers used?

A) They are required to meet current electrical codes.
B) They are cheaper than standard fuses and circuit breakers.
C) They are easier to install than standard fuses and circuit breakers.
D) They are used to prevent nuisance tripping when the compressor starts.

Q. 2

The disconnect for a piece of air conditioning equipment should be equal to:

A) 115 of the maximum overcurrent rating listed on the equipment dataplate.
B) Sum of the compressor RLA and the FLA of all fan motors.
C) The minimum circuit ampacity listed on the equipment dataplate.
D) 115 of the minimum circuit ampacity listed on the equipment dataplate.

Q. 3

When a purge-recovery unit runs to purge the air from the condenser of a low pressure chiller, most of the refrigerant that is purged with the air is

A) released with the water. B) released into the air.
C) reused as chiller fuel. D) recovered and returned to the system.

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newstudent

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khalasar99 Author

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6 years ago

Just got PERFECT on my quiz

Harvinder

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Brilliant ツ

DAGINC

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Thanks

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