Cleaning system for refrigerator condenser
AssigneeTrue Manufacturing Co., Inc.
InventorSteven L. Trulaske, Sr.
Life of this patent
Estimating the term…
Abstract
This cleaning system includes a compressor driven by a motor, a condenser; a cooling fan for directing an air stream at the condenser during normal operation, a motor drive system for driving the fan, and a timing device for reversing the rotational direction of the fan motor to direct the stream of cooling air away from the condenser to remove debris collected on the condenser and clean the condenser during a cleaning cycle. The fan is driven by drive system having a solid state commutated motor or a drive system having a reversible permanent split capacitor motor. The timing device includes a timer for controlling the time periods during the normal operation (cooling) cycle and during the cleaning cycle.
Claims13
A method of retrofitting a refrigerator unit, of the type comprising a compressor, a condenser, a condenser fan having an existing motor and a blade, with a condenser cleaning system including a reversible condenser fan motor and a timer, the method comprising the steps of:
- disconnecting a power supply to the refrigerator unit;
- disconnecting existing condenser fan motor leads from the compressor;
- removing the existing condenser fan motor,
- removing the condenser fan blade;
- installing the condenser fan blade in the same direction on the reversible condenser fan motor,
- installing the reversible condenser fan motor on the refrigerator unit;
- mounting the timer on the refrigerator unit;
- connecting the reversible condenser fan motor and timer power leads to the same compressor terminals from which the existing condenser fan motor leads were removed;
- and
- reconnecting the power supply to the refrigerator unit.
Dependencies are inferred from the claim text.