CONTROLLER OF AIR CONDITIONER EQUIPPED WITH REFRIGERANT HEATING DEVICE HAVING VAPORIZING HEATER

Japanese Patent JP3267208

B2

PROBLEM TO BE SOLVED: To prevent a stop of an operation caused by an operation of an overcurrent protector in advance by stopping a supply of electricity to a vaporizing heater for a given time when an operating current exceeds a predetermined value which is set lower than a predetermined current value of the overcurrent protector in an air conditioner having a refrigerant heater.
SOLUTION: When a heating operation is started, electricity is supplied to a vaporizing heater 8c to heat a carburetor 8b. Simultaneously, a four-way valve 2 is changed over to the heating side, a two way valve 7 is opened and a compressor 1 is operated. When the temperature of the carburetor 8b reaches a given value, the operation of a blower 8d is started. When a given time passes, an ignitor 11 and a fuel pump 10 are operated to start a combustion. Then, supply of electricity to the vaporizing heater 8c is stopped and the combustion is continued. In the case of starting the heating operation again after stopping the heating operation, when the operating current exceeds a predetermined value which is set lower than a predetermined current value of an overcurrent protector, the supply of electricity to the vaporizing heater 8c is stopped for a given time so that the stop of operation caused by the operation of the overcurrent protector can be avoided.

Toshihiko Nishimoto
Masahiro Fujikawa

JP23208197A

March 18, 2002

August 28, 1997

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Matsushita Electric Industrial Co., Ltd

F24F11/02; F25B49/02; (IPC1-7): F24F11/02; F25B49/02

JP5960142A
JP2157559A
JP5215387A
JP9152168A
JP2143050A
JP7294054A

Fumio Iwahashi (2 others)

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