Question about Heating & Cooling
I'm sorry to hear! On mine, another model of Burnham , there's a grey box (approx 4" high by 5" wide) on the front of the boiler. This cover slides off and the control settings are underneath. My manual says low limit must be 20 degrees below high limit else they will lock out each other. I find this to be the case when a maintenance man's "tuned" the settings. My manual also says to set the differential knob to 25 degrees. There are some manuals on the burnham.com site along with their phone number.
Posted on Jan 15, 2009
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Posted on Jan 02, 2017
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