View Full Version : Need replacement for Hoffman Panelmatic
studebk1953
11-14-2005, 09:15 PM
40yr old mechanical outside air comparator ,which adjusts boiler bypass with zone valve.Has outside bulb and inside water temp bulb .Uses input from master thermostat to control circulator (one )through boiler control .
karsthuntr
11-14-2005, 09:29 PM
are you talking about an outdoor reset?
studebk1953
11-14-2005, 09:37 PM
Yes ,but when this thing was built ,they called it an "econostat ".
ps ; does that cave smell like fish ?
karsthuntr
11-14-2005, 09:43 PM
Outdoor resets are still available.
Note: They smell like mud. :D
studebk1953
11-14-2005, 09:45 PM
will they perform the same functions ie control boiler bypass and circulator contol ?
karsthuntr
11-14-2005, 09:54 PM
Check out the Honeywell (http://honeywell.com) website and find one to meet your needs.
You need to be a contractor for this site though.
[Edited by karsthuntr on 11-14-2005 at 10:14 PM]
karsthuntr
11-14-2005, 09:56 PM
AQ675A1002
This one may work.
studebk1953
11-14-2005, 10:00 PM
Thanks ,I'll use my "contractor " ID .
PS ; got plenty of karst up here ,but most of it busy causing sinkholes uder highways .
studebk1953
11-14-2005, 10:02 PM
Thanks again ,Honeywagon makes good controls ,but bad computers .
rich pickering
11-14-2005, 10:15 PM
Also try tekmar. tekmarcontrols.com
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