The temperature measurement of the air leaving the air diffusers is called:
A) Supply-air temperature. B) Return-air temperature.
C) Ambient temperature. D) Approach temperature.
Question 2
Why is it dangerous to use gauges only designed for R-22 on a R-410A system?
A) Because R-410a and brass form an explosive new chemical compound on contact
B) Because R-410a pressures are backwards from other types of refrigerant
C) Because R-410a can dissolve the lining of the hoses used on R-22 systems
D) Because the system pressures can exceed the design limit of the R-22 gauges