Owner's Manual

Installing your ther , mostat
Wiring (Heat Pump System
continued)
c In the image on the right, check the
box next to each connection.
You will
use this checklist
in Step 9.
d Verify wire is firmly secured by gently
pulling
on wire.
e Repeat steps
a-d for all other wires.
Note: If old thermostat has separate
wires
on AUX and E, use a wire nut to
attach both wires to a separate wire.
Slide this third wire into the
W2-Aux/E
terminal.
f Push any excess wire back into the
wall opening after all wires are
installed.
g Continue to page
8.
Alternate wiring (Conventional System)
Use this if your wire labels
don't match the terminal labels.
Note: You must have a C wire
or equivalent. See page 5.
Important!
I
Check the box for each wire
you connect.
You will need
this information
in Step 9.
c O
KD
Rc D
RD
D W-0/8
DY
O G
D W2-Aux/E
0 Y2
D L
@ Labels don't match?
See alternate wiring keys
on pages 7-8.
~ .. 0
or W1 or H
D •o
or Y1 or M
~ .. 0
or F
~ .. 0
~ .. 0
L
MCR36751
Alternate wiring key (Conventional System)
G) •
If you have both an Rand Rc wire, unplug the jumper loop by pulling on the wire
loop.
• If your old thermostat had both
R and RH wires, connect the R wire to the Rc
terminal, the RH wire to the R terminal, and unplug the jumper loop.
7