Chapter 35 Heating, Ventilation and Air Conditioning Systems
So the amount of heat required to raise the temperature of 1 pound of water by 10F is 10 Btus
Heat flows from a colder object to a warmer one
The evaporator is responsible for removing heat from the circulating refrigerant
The TXV is used to separate the high pressure and low pressure sides of an air conditioning system. Liquid refrigerant enters the valve under high pressure via the system’s liquid line, but its pressure is reduced when the TXV limits the amount of this liquid refrigerant entering the evaporator.
When evacuating an R-134a system, how long should the vacuum pump be run after the low-pressure manifold gauge pulls 29.9 inches (760 mm) Hg vacuum?
what is a typical input of electronically managed A/C system
A low charge will result in inadequate cooling under high heat loads, because of a lack of reserve refrigerant, and can cause the clutch cycling switch to cycle faster than normal.
Which component provides the HVAC control module with temperature data.
the expansion valve in an A/C circuit sticks in the open position