Hi Everyone. I'm just starting out with the whole home automation stuff but I'm off to good start. I've got 3 door sensors, several light switches and a couple lamp plugs so far. All Z wave and all running great. I just purchased HomeSeer a few days ago after running the trial for about 20 days. So Its been a bit under a month since my first device went in.
Next on the agenda is some more lights, some motion detectors but my concern that I can't figure out is the Thermostat wiring stuff.
I need some help. I've written the following email as suggested in the pdf manual to Wayne-Dalton a week ago without any sort of response.
Perhaps this is the wrong Thermostat for me but I thought I'd post my email here and see if anyone can fill me in with a couple answers.
---- email sent is below ----
I wish to purchase the WDTC-20 - Z-Wave Thermostat (Wayne-Dalton).
I've taken my existing Thermostat apart and I have 3 wires. (the old thermostat has an old mercury switch and a fan control that's either auto or off.) The 3 wires are not labeled but connect to a circuit board with the labels R W G. Its a natural gas furnace. No cooling in the house.
R is a Red wire
W is a White wire.
G is a Black wire.
With the 3 wires completely separated from the circuit board, my multimeter shows that the R seems to be always Hot. It is 24V (actually 26.5 fairly constantly) if I go to either other wire. W and G together via the multimeter show nothing. I also tried via the ground in a nearby light box, with the same results, R seems to be the Hot one.
The instructions say I must have a C wire. But do I have that? I'm thinking my R is the C but then none of the wiring diagrams match.
Touching...
R to G turns the fan on.
R to W turns the furnace on.
G to W does nothing as I expected.
The furnace internal fan cleared fumes out after I stopped touching R to W so it must be completely separate, that makes sense.
Will I be able to use the WDTC-20 - Z-Wave Thermostat?
and if so, how do I wire it up?
If you have any questions to clear anything I've said up please let me know and I can check. I think I covered the basics but I've never redone a thermostat before so I just tested everything I could think of.
The only diagram that has only 3 wires is on page 12 and has wires
C, W, RH.
Would
my R be the C
my G be the RH
my W be the W.
if I wired it as per the top of page 14? But then that does not show G for Fan. Perhaps the bottom of page 14 as it has Fan but then I'm missing a wire.
Considering the warnings on page 10 I thought it best to contact you before trying anything regarding my R and your C.
---- end email ----
So that is it. I'm hoping someone can shed some light on this and tell me if this Thermostat will do for me.
I've read elsewhere on these forums that someone used a 24v wall wart to power the thing. I can do that if needed. I've got a nearby unused plug.
This home automation stuff is fascinating.
Bonus. I see Homeseer has no longer requires UPS. I can actually shop at a place that has a whole range of zwave stuff. Finding a good Canadian source for this stuff has been impossible. But thats the topic of for another post. Answers regarding the Themostat is all I'm after today.
Next on the agenda is some more lights, some motion detectors but my concern that I can't figure out is the Thermostat wiring stuff.
I need some help. I've written the following email as suggested in the pdf manual to Wayne-Dalton a week ago without any sort of response.
Perhaps this is the wrong Thermostat for me but I thought I'd post my email here and see if anyone can fill me in with a couple answers.
---- email sent is below ----
I wish to purchase the WDTC-20 - Z-Wave Thermostat (Wayne-Dalton).
I've taken my existing Thermostat apart and I have 3 wires. (the old thermostat has an old mercury switch and a fan control that's either auto or off.) The 3 wires are not labeled but connect to a circuit board with the labels R W G. Its a natural gas furnace. No cooling in the house.
R is a Red wire
W is a White wire.
G is a Black wire.
With the 3 wires completely separated from the circuit board, my multimeter shows that the R seems to be always Hot. It is 24V (actually 26.5 fairly constantly) if I go to either other wire. W and G together via the multimeter show nothing. I also tried via the ground in a nearby light box, with the same results, R seems to be the Hot one.
The instructions say I must have a C wire. But do I have that? I'm thinking my R is the C but then none of the wiring diagrams match.
Touching...
R to G turns the fan on.
R to W turns the furnace on.
G to W does nothing as I expected.
The furnace internal fan cleared fumes out after I stopped touching R to W so it must be completely separate, that makes sense.
Will I be able to use the WDTC-20 - Z-Wave Thermostat?
and if so, how do I wire it up?
If you have any questions to clear anything I've said up please let me know and I can check. I think I covered the basics but I've never redone a thermostat before so I just tested everything I could think of.
The only diagram that has only 3 wires is on page 12 and has wires
C, W, RH.
Would
my R be the C
my G be the RH
my W be the W.
if I wired it as per the top of page 14? But then that does not show G for Fan. Perhaps the bottom of page 14 as it has Fan but then I'm missing a wire.
Considering the warnings on page 10 I thought it best to contact you before trying anything regarding my R and your C.
---- end email ----
So that is it. I'm hoping someone can shed some light on this and tell me if this Thermostat will do for me.
I've read elsewhere on these forums that someone used a 24v wall wart to power the thing. I can do that if needed. I've got a nearby unused plug.
This home automation stuff is fascinating.
Bonus. I see Homeseer has no longer requires UPS. I can actually shop at a place that has a whole range of zwave stuff. Finding a good Canadian source for this stuff has been impossible. But thats the topic of for another post. Answers regarding the Themostat is all I'm after today.
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