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Results tagged with thermostat
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user 33
Mechanical or electrical device used to control a heating, ventilation, and air conditioning (HVAC) system, or other temperature reliant system.
1
vote
Wall mounted dial thermostat
There should be a notch, slot, groove, or other marking on the shaft. Which should align with a similar marking on the knob.
If not... Simply turn the shaft to one of the extremes (all the way up or …
- 132k
3
votes
Do I need a 24V or 120-240V thermostat?
How thick are the wires connected to the thermostat?
24V wiring will be small gauge, usually 22-18 AWG. …
- 132k
1
vote
How can I disable cooling with a White Rodgers thermostat?
This is the terminal that's energized when the thermostat calls for cool, so disconnecting the wire will prevent the thermostat from calling for cool. …
- 132k
2
votes
When running AC, Heat turns on once thermostat reaches desired temperature
Check your set points. You'll want to have a degree or two between the heating and cooling set points. For example, if your cooling set point is 76°F, you'll want to keep the heating set point at or …
- 132k
1
vote
1
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Controlling separate heat and AC units from a single thermostat
Yes.
Remove the jumper between the R and Rc terminals.
Connect the R wire from the heating system to the R terminal.
Connect the R wire from the cooling system to the Rc terminal.
Then you should …
- 132k
2
votes
Question on Honeywell Thermostat
That would mean that you need to:
Remove the jumper between R and Rc
Connect Rh from boiler to R on the thermostat
W from boiler to W on thermostat
R from A/C to Rc on thermostat
Y from A/C to Y on thermostat … G from A/C to G on thermostat …
- 132k
1
vote
Upgrading 2-wire to Ecebee3
Simply run a (new or additional) thermostat cable from the furnace up to the thermostat. Then wire it as follows:
Remove any jumpers between R and Rc on the Ecobee. …
- 132k
1
vote
Honeywell home ventilation system with no c wire for thermostat. How can I substitute the g ...
Or don't use a fancy thermostat.
If you follow the G wire through the system, you can get a better picture of what's going on. … When the thermostat energizes the G terminal, the Gt terminal on the ventilation control receives the signal. The ventilation control does whatever it does, and eventually energizes the Gf terminal. …
- 132k
1
vote
can I install a new thermostat by just turning off the power instead of turining off the cir...
Yes. In fact, that's what it's there for. If I remember correctly, code calls for the disconnect for a furnace to be within view of the furnace in some situations.
National Electrical Code 2011
Arti …
- 132k
0
votes
Replacing old for New Honeywell thermostat
However, since the jumper is currently in place, you'll almost certainly want to leave have it on the new thermostat. … If your system only has a single control transformer (typical in forced air systems), you'll only have one R wire coming to the thermostat. …
- 132k
2
votes
What could be damaged if I shorted the R wire to the C wire at my thermostat?
If we assume it's a 24V transformer, and that there's 50' of 18 AWG wire between the transformer and the thermostat. So voltage is 24 volts. … If the breaker is not tripped, it's possible that the coil wires in the transformer or the thermostat wires are damaged. …
- 132k
0
votes
HoneyWell Wifi Thermostat and C wire
You have to connect the other end of one of the extra wires, to the C terminal in the heating/cooling unit. See this answer for more information. Without knowing exactly what type of equipment you h …
- 132k
0
votes
Accepted
Which wire is the C wire?
PK takes 24v to the thermostat.
If you're looking for the C wire, because you want to install a fancy new WiFi thermostat. … Make sure the transformer can support the additional load, before you connect the thermostat. It doesn't look like there's a fuse on the transformer, and you wouldn't want to burn up the transformer. …
- 132k
1
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Is my thermostat transformer voltage too low?
Is there a C wire at the thermostat? You should measure between R and C for a proper voltage reading. …
- 132k