HOW CAN I CONNECT THE FIVE WIRES TO THE THERMOSTAT?
Need more info, Wire colors; to see if the installer used tstat wire, also what kind of system yo u have. I'm guessing you have Boiler/furnace and cooling. If so, and I don't get back to you in time, try this.
If you can open the acess cover on the heater and look at the transformer( it usally has a slight hum to it). Look at the color wire. Also if unsure, that cover you just removed, turn it around, it will have feild wiring or low voltage wiring makings on it. That is the t'stat wiring. Just match them up with the t'stat. The R/RC is the hot from the transformer( usally red in color) . The C is the common from the transformer(usally black in color).Note, this was used most of the time for t'stat power. may not be needed for new tstat if it's battery powered. The W is used to turn the firing on( what ever your flavor is) (Usally white in color). The G is the indoor fan (usally green, sometimes brown in color). The Y is used to turn the outdoor condensing unit on(cooling) (This wire is usally blue or orange, sometimes yellow). The "O" is usally used for a changeover valve usally only on heat pumps. Most of the time on t'stats you willl have O/W markings, but the way you listed it, you have a seperate connection for it, odd.
SO, before you start, turn power off to indoor and outdoor units. Indoor unit, most of the time, will have a light switch mounted on the side of unit or above. Some places call for the switch to be mounted at the enterance of the area where the heater is. The sould be marked with a red switch cover. If unsure, follow the wire (romex, or metal sheilded) powering the heater. Then go outside by the condenser, you should see a box mounted adjacent to the unit,open it up and pull the disconnect out.
Take your time and look at the wiring detail on the heater, and match the wires. THIS DESCRIPTION IS NOT FOR A HEAT PUMP SYSTEM. This is only for a conventional system. One heat, one cool.
After you've connected all the wires, Turn t'stat to off. power up all units.
Then
Turn to t'stats fan to on. You should hear the fan go on.
Then
set fan to auto, and set t'stat to heat and set it to higher temp that room temp. Listen for ignition,
Then
listen for fan. Fan may take a few mins to turn on due to heat exchanger comming up to temp.
Then,
As long as it's not below freezing ouside. switch to cool, then set t'stat below indoor temp. see if outdoor unit and indoor fan turns on. You will not harm compressor doing this for a short time.
Good Luck!.
SOURCE: Wiring a thermostat.
The green one is for the evaporator fan motor relay. The white one is for the heat sequencer. The one coming out of the transformer is usually red BUT it will be the power so attach it to the terminal labeled R on the thermostat. If there is a RH and a RC, put a jumper in between them. See if the purple and brown ones go to the fan motor, if so, then just cap them off with wire nuts, and that should have your heat working. Check to make sure the green and white wires go to their designated areas (the heat sequencer looks like a stacked set of thermal overload switches and the relay looks like, well, a relay) and neither ground out before flipping on power or you will pop your transformer.
SOURCE: replacing thermostat: tstatccshp01 with th8320u1008
Hook up o to o/b, then in the installation programming set the change over valve to energize in cool. Then hook up w to aux. Good luck.
SOURCE: Replacing a non-programable thermostat for
If you take thermostrat back off and connect the wires together will baseboard heater get hot. If not you may have bad heater. If it gets hot your new tstat may be bad. The way you have it wired is correct. Most line voltage tstats have a ground screw. Your 's may not but will work without one .
SOURCE: replacing old thermostat with new digital
Wire nut or tape the black off. The red is normally 24volt supply power to the t-stat. Blue may or may not be the common. Have a voltmeter?
SOURCE: Wiring instructions for Thermostat Honeywell with Carrier Package
Jumper R to Rc and hook hot wire from transformer to R usually red wire
O = Reversing valve probably white or orange If you get heat when calling for cool or Vice Versa then switch wire from O to the B terminal.
Y = Contactor usually yellow
G = Blower usally green
Jumper Aux to E need to go to unit and use the wire that goes to your Auxiliary or 2nd stage heat
L = Light if you have this terminal on your unit then hook it up.
C = Common from transformer usually black, if you have this terminal on your unit hook this wire up.
Make sure you go to your unit and only hook these wires up if they go to these locations.
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