Flame safeguard sequencer having switch test functions

Details Flame safeguard sequencer having switch test functions Flame safeguard sequencer having switch test functions

1983-01-03

1984-05-29

Scott, Samuel

Combustion

Timer, programmer, retarder or condition responsive control

431 29, F23N 500

Patent

active

044512279

ABSTRACT:
The high fire and low fire switches normally operated by a damper in a fuel burner installation are verified by a switch test function. In the event that the switches are malfunctioning, the fuel burner sequence is extended to compensate, or the sequence is terminated and annunciated. The extension of the sequence is accomplished by a time sequencer alteration means that is part of a flame safeguard sequencer.

REFERENCES:
patent: 3814569 (1974-06-01), Jacobsz
patent: 4101258 (1978-07-01), Jacobsz
patent: 4145179 (1979-03-01), Tanaka et al.
patent: 4196356 (1980-04-01), Kabat
patent: 4299556 (1981-11-01), Todo et al.
patent: 4395224 (1983-07-01), Cade
patent: 4399537 (1983-08-01), Jones

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