Outdoor unit construction for an electric heat pump
AssigneeWestinghouse Electric Corp.
InventorsRobert Draper, Robert S. Lackey
Life of this patent
Estimating the term…
Abstract
The outdoor unit for an electric heat pump is provided with an upper portion 10 containing propeller fan means 14 for drawing air through the lower portion 12 containing refrigerant coil means 16 in the form of four discrete coils connected together in a subassembly forming a W shape, the unit being provided with four adjustable legs 64 which are retracted in shipment, and are adjusted on site to elevate the unit to a particular height suitable for the particular location in which the unit is installed.
Claims7
An outdoor unit construction of an air-to-air electric heat pump comprising:
- a lower portion containing refrigerant coil means operable as an evaporator in the heating mode of said pump, and as a condenser in the cooling mode of said pump;
- an upper portion containing fan means overlying said coil means for drawing air through said coil means and discharging the air upwardly in both modes of operation;
- said refrigerant coil means comprising four fin and tube coils connected together in a subassembly to form an upright W as viewed in vertical cross-section, the fins of said coils being disposed generally vertically.
An outdoor unit for an air-to-air electric heat pump, comprising:
- a lower portion containing refrigerant coil means operable as an evaporator in the heating mode of said pump, and as a condenser in the cooling mode of said pump,
- said refrigerant coil means comprising fin and tube coil means, the fins of said coil means being disposed generally vertically;
- an upper portion containing an electric motor driving fan means overlying said coil means for normally drawing air through said coil means and discharging the air upwardly in both modes of operation;
- vertically adjustable leg means elevating said unit at least a certain distance above the ground;
- and
- said electric motor being operable in a reverse direction in a defrost cycle so that said fan means discharges air downwardly to aid in driving defrost melt off said fins and to disperse blowable snow from below said unit.
Dependencies are inferred from the claim text.