Hoping someone here remembers way back then or has an old installation manual around.
I've asked some of the locals and they scratch their foreheads but don't recall the specifics.
I'm here in mid Michigan, the economy is lousy, and our religious group is desperately trying to save money.
The building used to be occupied pretty steadily. Way back. But now it's just one day/week of services.
The first floor is the sanctuary. The basement has some tables, as well as the utility room with the furnace, a kitchen, and bathroom. The only water is in those three areas, which are in a corner near the walls.
Forced air, high efficiency furnace. Ductwork feeds both floors. (a/c, too).
Anyway... I've dropped the thermostat to its lowest setting of 45 degrees, and we raise it to 70 or so on the days we have services.
I'd like to lower it even further... say to 30 or so. Since the pipes are downstairs and close to the furnace, freezing shouldn't be a problem. Could probably go even lower, but 30 would be a good number.
However... the lowest number the Chronotherm will go to is 45 degrees. So we're still using lots of natural gas we'd rather not waste.
The local guys, who've been very helpful in other stuff for us and for individual jobs, are pretty sure there was an option to reset the limits, but don't remember how and where for this unit.
Anyone with pointers? Thanks.
It's a mid 1990s Chronotherm III, model T8621A7002 - 9310.
Seven days by four periods. Heating and A/C.
Thanks again.
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