Posted by George Larose on October 30, 2001 at 16:09:26:
In Reply to: Re: Instant Highfire! posted by tarzan on October 27, 2001 at 22:53:45:
: Your boiler is working exactly as designed..."Auto" mode allows it to fire as necessary to return boiler to the steam pressure setting....Manual mode cuts to wherever you have it set...leave it alone...don't "fix" it...learn to operate it.
: : I have a Cleaver Brooks 125 hp firetube boiler generating 100psi steam. This morning I discovered that after blowing down boiler and after prepurge boiler came on line as normal but went to 100% fire even though it was set to only go to 50%. In automatic mode it is bypassing the preset setting (ignoring it) and continuing to 100% fire. When I switch to manual mode it will stop at the preset mode of 50% fire. Where should I start looking for the problem? Modulator motor?
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