HVAC Questions? Ask an HVAC Expert for Answers ASAP
List the terminal labels on the thermostat.
C, L, W2, ER, G, O/, BY
there are four terminal labels in two rows, first four labels are in top row
Red - r
white - W2
green - G
orange - O
yellow - Y
gray - C
Make sure the wires do not touch or you will blow a fuse. Turn power off before connecting to avoid this.
power to HVAC shut off at fuse box. beneath the second row of terminals there is a small black switch that can be toggled left or right - which way should it go?
Leave it where it is.
it's toggled to the left.
If that is where it has always been, it should remain there.
not sure where it was - the person who removed the thermostat did not say
Try to hook the thermostat with it there and if it does not work, we will toggle it to the right.
okay, thank you very much. I can take it from here.
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