Control for forced air heating or cooling system

Details Control for forced air heating or cooling system Control for forced air heating or cooling system

1976-02-11

1977-03-01

Wayner, William E.

Automatic temperature and humidity regulation

Miscellaneous

Burner controls with automatic cutoff

165 22, 318305, 318348, 318349, 323 39, 323 80, F24F 302

Patent

active

040098257

ABSTRACT:
An SCR motor speed controller in a forced air heating and/or cooling system has a relay-operated potentiometer with a variable voltage tap which controls the speed of the fan motor in accordance with the total demand from individual room thermostats. Each room thermostat controls the operation of a corresponding control relay to short-circuit a corresponding part of the potentiometer on one side of its variable-voltage tap and to add in a corresponding part of the potentiometer on the opposite side of its variable voltage tap in response to a demand from the thermostat.

REFERENCES:
patent: 1282017 (1918-10-01), Stack
patent: 3273143 (1966-09-01), Wasserman
patent: 3693047 (1972-08-01), Hamstra
patent: 3814173 (1974-06-01), Coon
patent: 3815001 (1974-06-01), Jamieson
patent: 3962615 (1976-06-01), Spangler

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