Roof Top Hvac Plenum
Supply and or return plenums with field cut openings in roof curb floor.
Roof top hvac plenum. R410a roof top air conditioners high pressure switch lockout circuit air conditioners and heat pumps using r410a refrigerant utilize a factory installed high pressure switch safety circuit. Pre fabricated plenum roof curbs are available in the following. Commercial rooftop mounted combined air conditioning or heat pump units. At above right is a complex of roof mounted ac heat pump systems on a christchurch new zealand high.
Plenum curb will convert a dedicated down discharge roof top unit into a plenum curb. Rooftop mounted central air conditioning systems may include both the cooling unit evaporator coil blower fan filters and the compressor condenser unit in one package. And is designed for use with all heating and cooling applications. In the event of an abnormal condition failure of fan motor dirty condenser coil dirty filters the high pressure switch.
The trim to fit plenum fully assembled measures 20 in. Commercial ac units are designed for high volume high performance and daily use applications. D x 47 in. Constructed of 26 gauge sheet metal the knock down design of the plenum takes up very little space and simplifies transporting to the job site.
W x 20 in.