Heat exchange – With alarm – indicator – signal – register – recorder – test or... – Remotely controlled inspection means
Patent
1979-10-18
1981-04-21
Davis, Albert W.
Heat exchange
With alarm, indicator, signal, register, recorder, test or...
Remotely controlled inspection means
165 29, 236 94, F28F 2700
Patent
active
042627362
ABSTRACT:
A malfunction detection apparatus is provided for a heat pump system incorporating auxiliary resistance heaters, for detecting when the heat pump has lost efficiency, due to less than a catastrophic failure, and is therefore energizing the resistance heaters when they would not normally be energized, whereby a signal may be provided, such as a warning light, for announcing when the resistance heater has been energized while the outside temperature is above the system balance point.
REFERENCES:
patent: 3707851 (1973-01-01), McAshan
patent: 3743009 (1973-07-01), Dagerford
patent: 4217761 (1980-08-01), Cornaire et al.
Gilkeson Robert F.
Wiedersum George C.
Davis Albert W.
Focarino Margaret A.
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