Patent ID: 7024878
Filing Date: 2006-04-11
Classification: F24F,F25B,F25D,F28G,Y02B

Abstract:
1. 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.