When installing the outdoor unit of a split system air source heat pump, it is important to locate the unit
A) Below the frost line to reduce defrost cycles
B) Under an overhang for protection against the weather
C) Above the snow line of the area
D) As close to the house as possible to help shelter the unit from inclement weather
Question 2
PTAC unit performance is certified by
A) Air-Conditioning, Heating and Refrigeration Institute, AHRI
B) American Society of Testing and Materials Engineers, ASTME
C) Environmental Protection Agency, EPA
D) Underwriters Laboratory, UL