18
Figure 10. Single-Phase Wiring Diagram.
WD# 7105850
S
N
NO
TE
S
:
1.
Disconnect all po
wer bef
ore
servicing.
2.
For suppl
y
connections use
copper conductors only.
3.
Not suitable on systems that
e
x
ceed 150
V to gr
ound.
4.
If an
y of the original wire as
supplied with the furnace must be
replaced,
it m
ust be replaced with
wiring material ha
ving a temperature
rating of at least 105°C.
5.
For suppl
y
wire ampacities and
o
v
er
current pr
otection,
see unit
rating plate
.
1.
Couper le courant a
v
ant de faire
letretien.
2.
Emplo
yez uniquement des
conducteurs en cuivre.
3.
Ne con
vient pas aux installations
de plus de 150
V a la terre
.
FAULT CONDITION
S
TATU
S
LIGHT (RED
Power On
On
Limit Circuit Open
1
Fla
s
h
Pre
ss
ure
S
witch
S
tuck Open
with Inducer On
2 Fla
s
h
Pre
ss
ure
S
witch
S
tuck Clo
s
ed
with Inducer Off
3
Fla
s
h
Ignition Failure (Check Ground)
4
Fla
s
h
2
3
0 VAC & Neutral Rever
s
ed
or No Ground
5 Fla
s
h
Fal
s
e Flame or Ga
s
Relay
S
horted
Continuou
s
Fla
s
h
Power Off
O
ff
FAULT CONDITION
S
TATU
S
LIGHT (YELLOW)
Low Flame
S
en
s
or
S
ignal
C
ontinuou
s
Fla
s
h
Flame Pre
s
ent
O
n
1
1
2
2
FLAME
R
O
LL-OUT
S
WICH
LIMIT
S
WITCH
T
O
THERMO
S
AT
Y2
Y
C
W1
G
R
PRE
SS
URE
S
WITCH
GR
OUND
RC
YG
W
NEUTRAL
S
EAC
HUM
XFMR
L1
EA
C
COOL
HEA
T
M3
M2
M1
HUM
COM
24V
GA
S
VA
L
V
E
FLAME
S
EN
S
OR
INDUCER
IGNIT
O
R
C
R
9
8
7
6
3
2
1
5
4
6
3
2
1
5
4
RELA
Y
RELA
Y
T
O
208/230
V
A
C
PO
WER
S
UPPL
Y
TO
D
I
S
CHARGE
AIR
S
EN
S
OR
L2
T2
T1
L1
2
3
4
5
6
7
8
9
1
CRANKCA
S
E
HEA
T
ER
(IF EQ
UIPPED)
GR
OUND ON
LOCA
TION
PR
O
VIDED
IN
S
IDE
COMPRE
SS
OR
TERMINAL BO
X
C
R
PRE
SS
URE
S
WITCH (44)
IF EQ
UIPPED
COMPRE
SS
OR
CONT
A
C
T
O
R
COMPRE
SS
OR
OUTDOOR
FA
N
M
O
T
O
R
DU
AL CAP
A
CIT
O
R
ECONOMIZER JUMPER
HARNE
SS
A
SS
Y
8-WIRE
ECONOMIZER
PLUG
BLO
WER
MO
T
O
R
C
C
HF
ECONOMIZER
PLUG
24V
COM
208V
240V
T1
G
N
L
T5
T3
T4
T2
C
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
1
1
2
2
BLA
C
K
BLA
C
K
BLA
C
K
BLA
C
K
BLA
C
K
BLA
C
K
BLA
C
K
BLA
CK
BLA
C
K
BLUE
BLUE
BLUE
BLUE
BLUE
BLUE
BR
O
W
N
BR
O
W
N
BR
O
W
N
WHITE
WHITE
WHITE
WHITE
WHITE
RED
RED
RED
RED
RED
RED
RED
RED
RED
RED
RED
ORANGE
GREEN-YELLO
W
ORANGE
ORANGE
ORANGE
YELLO
W
YELLO
W
YELLO
W
YELLO
W
GREEN
ORANGE
RED
RED
BLUE
YELLO
W
BLA
C
K
GREY
GREEN
ORANGE
BLUE
YELLO
W
BLA
C
K
GREY
GREEN
S
R
Field Wiring
Factory Wiring
Low Voltage
High Voltage
7105850