[an error occurred while processing this directive]
Posted by Purging combustible gases on July 06, 2002 at 12:52:30:
In Reply to: Re: Furnaceroom.com posted by JC on July 06, 2002 at 10:00:59:
Two possible ways: Open the cleanout doors to the furnace and let the air gradually circulate to dilute and expel the gases. Care would need be taken not to ignite the gases from sparks. We would be supposing that there was no electricity to help fan purge and the electricity was manually disconnected to prevent unexpected energizing.
As the Fireye cam-trips contacts to bring on the sequential relays, disabling the Fireye sequencing motor and making the fan relay contacts only could begin a purge after power is reapplied.