34
Figure 24. Wiring Diagram for Two-Stage, Fixed Speed Upfl ow Furnaces
FLAME
R
O
LL-OUT
SUPPL
Y
AIR LIMIT
BLO
WER
LIMIT
BLO
WER
LIMIT
PRESSURE
SWITCH
PRESSURE
SWITCH
PRESSURE
SWITCH
PRESSURE
SWITCH
T
O
RQ
UE
M
OTO
R
R
C
GND
RX
TX
W
R
C
Y1
TWIN
COOL
FAN SPEED
HEAT
DEHUM
HP
SPEED
COMMON
PWM
MODE
NONE
NONE
R
C
GND
RX
TX
W
W
FLAME SENSOR
11
4
1
8
7
10
5
2
9
3
12
6
LINE- N
XMFR-N
LINE
LINE
XMFR
EAC
HUM
LINE- N
14
3
25
R
C
TX
RX
W
COM
IGNITOR
DOOR
SWITCH
R
C
Y/Y2
W2
GW
1
Y1
BLAC
K
WHITE
1
2
1
2
BLA
C
K
BLA
C
K
LO
W
HIGH
24 V
120 V
WHITE
BLA
CK
WHITE W/
BLK
STRIPES
BLK W/ WHITE
STRIPES
1234
1234
GAS
VA
LV
E
HI
LO
C
INDUCER
H
L
C
12
3
12
3
11
22
33
44
55
66
77
88
99
1
2
3
4
5
6
1
2
3
4
5
6
BL
WR OFF
DELA
Y
RED
RED
RED
PA
R
T
O
F
M
OTO
R
1
2
3
1
2
3
For 80+ and 90+ 2-Sta
g
e
Fix
ed Speed Upflo
w Furnaces
WIRING DIA
GRAM
7109160
FIELD WIRING
LEGEND:
LO
W V
O
LT
A
G
E
HIGH V
O
LT
A
G
E
BLUE
BLUE
BLUE
BLUE
BLUE
BLA
CK
WHITE
BLA
CK
BLAC
K
BLAC
K
BLACK
BLACK
WHITE
BLA
CK
WHITE
WHITE
RED
RED
GREEN
GREEN
BR
O
W
N
BR
O
W
N
YELLO
W
VIOLET
VIOLET
VIOLET
ORANGE
ORANGE
ORANGE
VENT LIMIT
(ON SELECT
MODELS)
BLA
CK 120V
WHITE (NEUTRAL)
GR
OUND
¢¤
CONDENSA
TE
(ON SELECT
MODELS)
Ref
er to the Installation Instructions
pr
o
vided with the kit f
or the pr
oper
heating and cooling speeds f
or y
our
application.
If an
y of the origInal wire as supplied with the
furnace m
u
st be replaced,
it m
ust be replaced
with wiring material ha
ving a temperature
rating of at least 105° C.
Use copper conductor
s onl
y
.
This wiring dia
gram sho
ws connections and
termination required f
or the b
lo
wer kit onl
y
.
Use in ad
dition to the wiring dia
gram f
or the
furnace
.
Gr
e
e
n LE
D
R
e
d
LE
D
Co
ntrol
Fau
lt (No P
o
wer)
Off
O
ff
L1 / Neutral Polarity
Fault
F
las
h
Fl
as
h
1 Hour Loc
k
o
ut
Nor
m
al O
p
er
ation
O
n
O
n
Pres
s
u
re Switc
h
Clos
ed Fault
O
n
F
las
h
Pres
s
u
re Switc
h
O
p
en Fault
F
las
h
O
n
O
pen Limit Switc
h
Fault
F
las
h
O
ff
Low Flame Sens
or Signal
Flame Pres
ent
Diagnostic Descr
iption
FAULT CONDITIO
NS
Diagnostic Descr
iption
Yello
w
L
E
D
Continuous
Flas
h
On
Alternating Flas
h
Motor Fault
On
O
ff
0409
MO
T
O
R CHOKE
(ON 3/4 AND 1HP
MO
T
O
RS ONL
Y
)
BLUE
BLUE
BLA
C
K
WHITE
BLA
C
K
WHITE
BR
O
W
N
RED
ORANGE
YELLO
W
GREEN
BLUE
BR
O
W
N
RED
ORANGE
YELLO
W
GREEN
BLUE
