Control system for a recreational vehicle's air-conditioning/hea

Details Control system for a recreational vehicle's air-conditioning/hea Control system for a recreational vehicle's air-conditioning/hea

1987-02-13

1988-11-15

Wayner, William E.

Heat exchange

Movable heating or cooling surface

Rotary drum

236 51, F25B 2900

Patent

active

047842148

ABSTRACT:
A secondary control system (10) for a RV's air-conditioning/heating system. Conventional roof-mounted RV heating and cooling units have a primary control for selectively energizing the heating/cooling unit (11). This unit is normally wired through a circuit breaker which supplies power provided by a conventional power line. The present control system (10) includes a switch (20) which selectively energizes the heating/cooling unit. This switch (20) is controlled by a low voltage control device (30). The control device operates in an override mode such that the primary control associated with the heating/cooling unit (11) serves to energize and de-energize such unit. The control device (10) also includes a thermostatically controlled mode for selectively opening and closing the control switch (20) in response to ambient temperature.

REFERENCES:
patent: 3486081 (1969-12-01), Kanbar
patent: 4190848 (1980-04-01), Falkenstein

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