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I think the problem is that you can't answer a simple question, which
is, should I connect R and C to the block, or the terminal strip? Both
have screws to accept wire connections.
There's a level of confidence one gets after they've done something once
or twice (successfully). It's a bit unnerving not having the display
light up, and I can see that there's no return to the common side of the
transformer, so perhaps if I hook up the black wire to C I'll be in
business - at which point I'll probably have a question re: how to adapt
the multi-stage operation to a single-stage furnace.
Thinking about it, though, I guess W-R has tapped off C and R to the
block to power off-board devices.
I work with electronic technicians all day long (alarm systems), but
when I asked one of the senior guys if he knew anything about
heating/cooling systems his answer was "my furnace has a red wire and a
Questions from someone not "in the biz", may seem dumb, but you've
probably heard that there's no such thing as a dumb question, only...
<div><font face="Verdana">I have White-Rogers</font>
1F95-371 multi-stage thermostat that I'd like to try and use with my
plain vanilla residential furnace (Lennox).<br>
<font color="#ff0000" face="Arial" size="2">its a Lummox
with a WR stat</font><br>
- I only need it to control heat (W), fan (G) and AC (Y)<br>
- The R and C terminals on the unit have red and black wires
(respectively) soldered to a block which has 3 terminals on it (see <font
- If I connect W/G/Y plus the R wire, the display does not light up -
presumably because it needs a full-time connection to T (transformer
Has anyone wired up one of these successfully and can I adapt it to my
<div><font face="Verdana"><font color="#ff0000" face="Arial"
size="2">Yup, lots of times</font></font></div>
Please don't top post. It's annoying. And that 'stat looks like it is
for multi-stage specific application. Installer option does not show
anything for single stage operation. I could be wrong.
Tony, EE class of '66
Retired from Honeywell in '96
I don't have a problem with troubleshooting boards at the componant level. I
am still operating some of the HAM radio equipment that I designed and built
from scratch over the last 30 years. A thermostat is still nothing more than
a switch. A multi stage stat works just fine with single stage equipment.
All I carry on my truck are multi stage stats so I can configure them for
*ANY* application. Like I said before, you just have to be smarter than a
temperature controlled, ON/OFF SWITCH
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