18-BC85D1-2
13
11.2 Low Voltage Hook-up Diagrams
Notes:
1. See User Interface 24
V Mode setup menu
for control mode and
cooling CFM options.
2. W3 terminal may not
be present on unit.
3. (Air Handlers only) If
electric heat does not
have 3rd contac-
tor (CH), connect
a jumper wire from
W3 to W2. If electric
heat does not have
2nd contactor (BH),
connect a jumper wire
from W2 to W1.
4. W1 - X2 is a field
installed jumper.
Communicating Indoor Unit
with 24 V Control Hook-up
Diagram
Notes:
1. Comfort control must
be dual fuel capable
or use accessory
TAYPLUS103A.
2. Ylo and BK may not be
present on unit.
3. W1 - X2 is a field
installed jumper.
Variable Speed Furnace
Hook-up Diagram
Red
Yellow
Green
White
Blue
Orange
W1
O
B
X2
G
Y1
Yellow
Yellow
Blue
Orange
Blue
Black
(X2)
Red
Red
Orange
R
Comfort Control
Variable Speed
Furnace
Heat Pump
Black
W1
W2
G
Y
B
O
BK
Y
LO
R
Neatly bundle all low voltage
wires as shown.
Red
Yellow
Green
White
Blue
Orange
W1
O
B
X2
G
Y1
Yellow
Yellow
Blue
Orange
Blue
Black
(X2)
Red
Red
Orange
R
Comfort Control
Comm. Variable Speed
Furnace or Air Handler
Heat Pump
Black
W1
W2
W3
G
Y2
B
O
BK
D
Y1
R
Neatly bundle all low voltage
wires as shown.
