Timer relay control board

Details Timer relay control board Timer relay control board

2006-08-01

2009-06-30

Basichas, Alfred (Department: 3743)

Combustion

Timer, programmer, retarder or condition responsive control

Of diverse feed or feed rate in starting, e.g., enriching...

C431S036000, C431S037000, C431S041000, C126S11600A

Reexamination Certificate

active

07553151

ABSTRACT:
A heater (12) includes a burner (16), a valve (20), and an inducer (18). A thermostat (24) is electrically coupled to the heater (12) and a control board (44) is disposed in the heater (12) and electrically connected to the thermostat (24). The control board (44) includes an inducer relay (50), a valve relay (52), and a control timer (54) for switching the valve (20) between a high flow stage and a low flow stage and the inducer (18) between a high speed stage and a low speed stage, respectively, wherein the inducer relay (50), the valve relay (52), and the control timer (54) are mounted to the control board (44) to define a singular and compact controller (30).

REFERENCES:
patent: 3912162 (1975-10-01), Bauer et al.
patent: 4752726 (1988-06-01), Aoyama
patent: 4976459 (1990-12-01), Lynch
patent: 5027789 (1991-07-01), Lynch
patent: 5326025 (1994-07-01), Dempsey et al.
patent: 6161535 (2000-12-01), Dempsey et al.
patent: 6170480 (2001-01-01), Melink et al.
patent: 2004/0104276 (2004-06-01), Weimer et al.

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