Boiler ventilation system

Details Boiler ventilation system Boiler ventilation system

2005-04-12

2005-04-12

Boles, Derek S. (Department: 3749)

Heating systems

Combined with water heater

C237S046000, C237S007000

Reexamination Certificate

active

06877670

ABSTRACT:
A method of ventilating a boiler system (10) during boiler system outages includes shifting (64) to the ventilation system (11) by stopping (70) the boiler system induced draft fan (32), closing (71) an internal isolation damper (19) in the boiler system ductwork (14), opening (72) a ventilation isolation damper (18), and starting (73) a ventilation fan (12). At the completion of the outage, before resuming operation of the boiler, the ventilation system (11) is secured (64) by stopping (80) the ventilation fan (12), closing (81) the ventilation isolation damper (18), opening (82) the internal isolation damper (19), and starting (83) the induced draft fan (32).

REFERENCES:
patent: 1657771 (1928-01-01), Summers
patent: 3198190 (1965-08-01), Gordon
patent: 4134448 (1979-01-01), Luksus
patent: 4241874 (1980-12-01), Schossow
patent: 4311191 (1982-01-01), VanderVaart
patent: 4412652 (1983-11-01), Voss et al.
patent: 4798240 (1989-01-01), Gerstmann et al.
patent: 5112215 (1992-05-01), Frish et al.

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