Air conditioner having a refrigerant heater

Details Air conditioner having a refrigerant heater Air conditioner having a refrigerant heater

1990-07-31

1991-09-03

Ford, John

Heat exchange

Movable heating or cooling surface

Rotary drum

622387, 62160, 62181, 237 2B, F25B 2900, F25B 2700, F25B 1300

Patent

active

050444255

ABSTRACT:
An air conditioner comprising a heat-pump refrigeration circuit including a compressor, a four-way valve, an outdoor heat exchanger, a pressure reducer, an indoor heat exchanger, connected in this order, a refrigerant heater arranged in the refrigeration circuit, the heating capacity thereof being variable, release control for reducing the heating capacity of the refrigerant heater when a detected temperature Tc exceeds a first set temperature Tsl, mode switch for setting the air conditioner in a hot air blow-off mode in which the indoor fan rotates at a low rate during a heating operation. When the mode switch sets the hot air blow-off mode, the rotation rate of the indoor fan is controlled so that the detected temperature Tc is kept lower than the first set temperature Tsl, thereby preventing release control in the hot air blow-off mode.

REFERENCES:
patent: 4441901 (1984-04-01), Endoh

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