Author Question: Systems with fixed restriction metering devices are critical to charge because: A) They can only ... (Read 73 times)

jilianpiloj · **on:** Jul 26, 2018

Systems with fixed restriction metering devices are critical to charge because:

A) They can only be charged one time.
B) The expansion device cannot adjust to changing conditions.
C) The large liquid receivers hold so much refrigerant.
D) You must weigh both the system and the refrigerant.

Question 2

Will a chart that only specifies the outdoor ambient temperature still read accurately if the indoor relative humidity is very far off of 50?

A) Yes, because the chart is based on 400 CFM per ton airflow.
B) No, because the intersection would always fall below the red line in this instance.
C) No, because a central assumption of the chart would be inaccurate.
D) Yes, because the chart uses both outdoor and indoor dry-bulb temperature.