HVAC control systems maintain minimum _______ air during periods of extreme high and low ambient temperature.
a. Return
b. Supply
c. Ventilation
d. Exhaust
e. Recycled
Answer: c
HVAC control systems maintain minimum _______ air during periods of extreme high and low ambient temperature.
a. Return
b. Supply
c. Ventilation
d. Exhaust
e. Recycled
Answer: c