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Posted by Derek anthony on June 13, 2007 at 00:16:03:
In Reply to: Boiler cycling on and off posted by Bob on February 05, 2007 at 18:39:41:
: My Church has a new Beckett oil steam boiler. I have a question concerning it's operation.
: Is it normal for the boiler to remain in a 'hot' condition, that is cycle on when the steam pressure drops to 2.5 PSI and then cycle off when the steam pressure reaches 5.0 PSI. This continues constantly even if none of the 3 zones are calling for heat, The boiler stays on for 30 seconds or so until the steam pressure reaches 5.0 PSI.
: If any of the 3 zones is calling for heat then the boiler will remain on until it again reaches 5.0 PSI which naturally takes longer when heat is called for.
: Is that the normal way for a boiler to work or should it be shutting down and only coming on when heat is called for by a thermostat, like when a zone is being used or the temperature drops below the setting?
I work in the Portland Vetrans hospital, We have three firetube boilers that we leave on Idle (except for one that supplies steam to the sterilizers) they are set to come on at 98 Psi and shut off at 124 psi
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