32
Electrical Information
Figure 34. Nordyne/UTEC Wiring Diagram
IGNI
TO
R
INDUCER
FLAME SENSOR
C
DOOR SWITCH
R
GAS VA
LV
E
FLAM
E
R
OLLOU
T
SUPP
LY
AIR LIMIT
PRESSUR
E
SWITC
H
4
24
V
120
V
WHIT
E
BLA
CK
WHITE
W/ BLK STRIPE
BLK
W/
WHITE STRIPE
1234
1234
1
2
1
2
1
2
1
2
12345678
9
123456789
VENT LIMIT
BLO
WE
R
LIMIT
BLO
WE
R
DEC
K
LIMIT
BLO
WE
R
LIMIT
MO
TO
R
12345N
LC
G
NO
TE:
FOR
BLO
WER
WIRING SEE
BLO
WER
TABLE
LITER
AT
UR
E
1
2
3
4
5
6
1
2
3
4
5
6
7
8
9
R C Y G W
LOW
ML
MH
HIGH
EAC
L1
XFMR
HUM
CO
M
GREEN
YELLO
W
RE
D
3 AMP FUSE
24
V
R
C
TX
RX
W
COM
L1A
NEUTRALS
12
34
24
V
24V
MO
TO
R
CHOKE
BL
AC
K
BLAC
K
FIELD
WIRIN
G
LEGEND
:
LO
W
VO
LT
AG
E
HIGH
VO
LT
AG
E
WIRING DIA
GRAM
For Single Stage Furnaces
Refer to the Installation Instructions
pr
ovided with the furnace f
or the
pr
oper heating and cooling speeds
for y
our application.
If an
y of the original wire as supplied with
the furnace m
ust be replaced
, it m
ust be
replaced with wiring material ha
ving
a
temperature of at least 105 C.
Use copper conductor
s on
ly
.
Diagnostic Descriptio
n
Green LE
DR
ed LE
D
Control Fault (No Power)
Of
fO
ff
L1 / Neutral Polarity Fault
Flas
hF
lash
1 Hour Lockout
n
O
n
O
noi
ta
re
p
O l
a
mr
o
N
Pressure Switch Closed Fault
On
Flas
h
Pressure Switch Open Faul
tF
lash
On
Open Limit Switch Fault
Flas
hO
ff
Diagnostic Descriptio
n
Low Flame Sensor Signal
Flame Present
FAULT CONDITIONS
Yellow LED
Continuous Flas
h
On
Alternating Flas
h
1028490
0
(Replaces 1027315A)
08/19
BLA
CK
BLA
CK
BLA
CK
BLA
CK
WHITE
BLA
CK
YELL
OW
YELL
OW
GREEN
BLUE
BLUE
BLUE
GREEN
BLUE
BLUE
BLUE
BLUE
BLUE
BLUE
GRA
Y
BLA
CK
WHITE
BL
AC
K
BLUE
ORANGE
RED
RED
WHITE
BLACK
BLACK
WHITE
BLACK
BLUE
ORANGE
RED
BLACK
BLUE
BLUE
ORANGE
ORANGE
RED
RED
GRA
Y
GRAY
GREEN
BK/WH STRIP
E
(ON SELECT
MODELS)
(ON SELECT
MODELS)
PRESSURE
SWITC
H
(ON SELECT
MODELS)
WHITE (NEUTRAL)
BLA
CK 120
VA
C
GR
OUND
(ON
SELECT
MODELS)
MO
TO
R
CHOKE
BLAC
K
BLAC
K
BLAC
K
(ON SELECT
MODELS)
