Vapor line pressure control

Details Vapor line pressure control Vapor line pressure control

1997-12-22

2000-07-25

Wayner, William

Refrigeration

Automatic control

Of external fluid or means

62498, 62DIG17, F25D 1704, F25B 100

Patent

active

060923784

ABSTRACT:
In a heat pump system designed for use with a relatively low pressure refrigerant, provision is made, by use of a vapor pressure control system, to use a higher pressure refrigerant without replacement of the indoor coil and the line set. The vapor pressure is sensed during periods of heat pump operation, and when the pressure reaches a predetermined maximum threshold level, the outdoor fan speed is reduced to thereby cause the vapor pressure to be reduced. When the vapor pressure is reduced to a predetermined minimum threshold level, then the fan speed is resumed so as thereby allow the vapor pressure to again be increased.

REFERENCES:
patent: 2252300 (1941-08-01), McGrath
patent: 5782101 (1998-07-01), Dennis

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