Air-conditioning system

Details Air-conditioning system Air-conditioning system

1977-05-09

1978-10-24

Myhre, Charles J.

Heat exchange

Movable heating or cooling surface

Rotary drum

236 1C, 236 91F, F25B 2900

Patent

active

041216555

ABSTRACT:
A package terminal air conditioning system as disclosed having a room air-circulating blower, an air-cooling device, an air-heating device, and a thermostatic control which governs operation of the air-cooling and air-heating devices in response to the temperature of room air which is circulated by the blower.
The control unit senses the temperature of the air which is returned to the unit from the room and the air which is discharged from the unit to the room and operates an appropriate electrical switch to enable and disable the respective air-heating and cooling devices. The operation of the unit is such that when the temperature of the discharged air differs substantially from the temperature of the return air, the differential in the sensed room air temperature between the cut-in and cut-out of the heating or cooling device is reduced which results in minimizing the possibility of overheating or undercooling the room.

REFERENCES:
patent: 2290985 (1942-07-01), McElgin
patent: 2594477 (1952-04-01), Miner et al.

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