W/W1
Y/Y1
Rc
RC RH
Carefully disconnect and label the wires
from your old thermostat one at a time,
using the labels provided.
STEP 5
TIP 1 If you have a jumper between Rc, Rh, or R, leave it alone. Only
label the wires that run from your wall into a terminal block.
TIP 2 To install accessories (humidifier, dehumidifier or ventilator)
please refer to the wiring diagrams in the ‘Extras’ section.
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