|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||62/192 ; 62/472|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 19 인용 특허 : 0|
A crankcase heater control system for a refrigeration system includes a first temperature sensor for sensing the outdoor temperature, and, a second temperature sensor for sensing compressor discharge temperature. A controller is operatively connected to temperature sensors and the crankcase heater. When the ambient temperature falls below a first pre-determined temperature the controller compares the compressor discharge temperature to a second pre-determined temperature which is greater than the first pre-determined temperature and energizes the crankca...
In a refrigeration system serially including a hermetic compressor having a crankcase heater, an outdoor coil, an expansion device, and an indoor coil, crankcase heater control means comprising: first temperature sensing means for sensing a temperature indicative of outdoor temperature; second temperature sensing means for sensing a temperature indicative of compressor temperature; controller means operatively connected to said first and second temperature sensing means, and, said crankcase heater, for comparing said temperature sensed by said first sens...