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