Ruud heater model (-)HQA(-) five wires coming out of the unit. Two black labels G and W. One yellow wire coming from the 24v transformer. And one purple and one brown. Need to know how to wire just the heater without the air unit.
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Re: 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.
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Usually the Red wire provides 24v and connects to the R termenal-
Next the Green wire is to the indoor blower motor and connects to G terminal-
Next the Yellow wire is to the outdoor unit to call for cooling and will engage power to the contactor solenoid to pass 240v power to compressor and power to Start/Run capacitor and fan! It will connect to the Y terminal-
Next is the White wire an it calls for Hea and is connected to the W terminal-
If you have an Orange wire it is for the reversing valve of a heat pump system.
Remember the red feeds 24v to each of these colored wires to complete a connection and pass power to the device being called into action.
BLue or Black wire will be ground if the thermostat needs power instead of batteries.
Red wire is the only hot 24v wire going to the thermostat period! And it comes from the Transformer!
outside unit L1 and L2 are load (input 240vac) then you have control voltage, usually yellow and blue (24vac) this connects to some 18/2 thermostat wire which goes inside as white and red.
note: this unit may only need 24v control which is 2 wires from the inside unit and also 3 wires 2 hot 1 ground for line voltage.
STANDARD WIRING on the inside unit you have green, white, blue and red control wires.
on your thermostat you have white, red, yellow and green
you run the wire from the outside unit to the inside unit. then run a 18/4 wire to the thermostat if wired and join the following wires.
inside unit thermostat outside unit green------------------------green white-------------------------white red----------------------------red blue-------------------------------------------------------blue yellow--------------------yellow
If the transformer wires are shorted together, this will burn up the transformer. Normally transformers on the LV side (24 volt) are not grounded, but the solenoids that they control could be grounded, and a t-stat wire that is unintentionally grounded could burn up the transformer, but its not likely.
Brown wire connect to com C on terminal block in your furnance (0VAC from 24VAC transformer)
Yellow turn on compresor (hot wire from 24VAC Transfrormer)
Blue switch Valve from AC to Heat (hot wire from 24VAC Transfrormer)
Purple prevent starting compressor in Heat pump and furnace in same time
Turn the power off to the air handler. Open the control cover. Write down what color wires go together at the wiring terminal. All 8 wires are probably not used.
Post the findings here.
In most cases,
E= brown-emergency heat
AUX=white-auxillary heat to supplement HP
Y= yellow-to compressor for heat or cool(hp)
O-orange-reversing valve on HP when energized in COOL
L=t-stat light(probably not used)
R=red-24v incoming power
B=black-reversing valve on HP when energized in HEAT
C=blue-common wire for 24v
Only one of the "O" or "B" will be used. Not both.
Typically you normally will have five wires controlling your furnace and airconditioning. R Y W G C. If you get some thermostat wire. Connect them like this---- red wire will go to R(this is your 24V to thermostat)----yellow wire will go Y(Y is your cooling)----white wire will go W(W is for heating)---green wire to G(green is your fan)---black can go to C(this is your common to supply 24Vto thermostat)
Hopefully there are markings on the old t-stat as to what terminal is what.
on the honeywell 8000 use the heat pump labeling and then the standard wiring would be
There should not be a bare wire, it probably just has the insulation stripped back way too far.
You should probably open the furnace and compare the terminal label in the furnace to the wire color. normally yellow and blue pass through the furnace and are wire nutted to wires going to the outdoor unit. In the furnace the white wire will connect to the w or w1 terminal. also, you will need to set the Honeywell stat to have the following parameters.
other parameters that I did not specify, you may read the manual and make your own decision but I recommend factory settings for the other parameters
we are trying to install a goodman heat pump with a rheem air handler, the orange wire is hook up and the unit is still staying in the heat mood. does anyone have a wiring diagram for the air handler, their is some white wires in the air handler one with a purple strip and one with a black strip we need help