How does an energy-recovery wheel improve system efficiency?
A) By moving some of the system refrigerant with a turbulator
B) By reducing the condenser head pressure
C) By transferring heat between the ventilation air and the exhaust air
D) By keeping the evaporator clean
Question 2
________ is the measurement of the total heat content of the air expressed in BTU per pound of air.
A) Latent heat B) Enthalpy
C) Dry-bulb temperature D) Static pressure