31
ELECTRICAL INFORMATION
Figure 13. Two Stage Cool, Two Stage Heat (Heat Pump)
High Fire Only - Gas Heating (2 & 5 Ton Only)
BLA
CK
BLUE
BLA
CK
02-YB-43 (28)
RED
BLA
CK/WHITE
GREEN
WHITE
BLA
CK
RED
WHIT
E
RED
BLA
CK
BL
AC
K
RED
RED
RED
YELLO
W
BR
OW
N
BR
OW
N
BLA
CK
BL
AC
K
GREEN
ORANGE
ORANGE
ORANGE
RED
YELLO
W
YELLO
W
BR
OW
N
BR
OW
N
BLUE
GREEN
BLUE
RED
BLA
CK
BLUE
BLUE
RED
WHITE
YELLO
W
WHITE
ORANGE
YELLOW
BLACK
RED
BROW
N
WHITE
BLA
CK
BLA
CK
YELLO
W/BL
AC
K
YELLOW
WHITE
BLA
CK
208/230
Volt
.z
H
06
/
es
a
h
P
el
g
ni
S
me
ts
y
S
de
ga
kc
a
P
g
nil
o
o
C
d
na
g
nit
ae
H l
e
u
F l
a
u
D
FIELD
WIRIN
G
LEGEND
:
LO
W
VO
LT
AG
E
HIGH
VO
LT
AG
E
NO
TES:
1.
Couper le courant
av
ant de faire letretien.
2.
Emplo
yez uniquement des conducteu
rs
en cuivr
e.
3.
Ne con
vient pas aux installations de plus de 150
V
a la terr
e.
DEFR
OST BO
ARD OPERA
TION:
Heat Pump operates in heating mode until the combination of outdoor ambient
and outdoor coil temperatures initiate a defrost cycle. The outdoor coil
temperature must be at or below 32˚F before the defrost cycle begins.
There must be a minimum of 20 minutes between defrost cycle
s.
After this
time, temperature conditions must call for defrost continuously for 4 1/2
minutes before a defrost cycle is initiated.
The defrost cycle ends when the outdoor temperature reaches 32˚F or the
defrost terminate time of 13 minutes 39 seconds is reached.
1
2
3
)
D
E
R(
T
H
GI
L
S
U
T
A
T
S
N
OI
TI
D
N
O
C
T
L
U
A
F
n
O
n
O r
e
wo
P
hs
al
F
1
ne
p
O ti
uc
ri
C ti
mi
L
Pressure Switch Stuck Open with Inducer On
2 Flashes
Pressure Switch Stuck Open with Inducer Of
f3
Flashe
s
Ignition Failure (Check Ground)
4 Flashes
230 VAC & Neutral Reversed or No Ground
5 Flashes
False Flame or Gas Relay Shorted
Continuous Flas
h
ff
O
ff
O r
e
wo
P
)
W
O
L
L
E
Y(
T
H
GI
L
S
U
T
A
T
S
N
OI
TI
D
N
O
C
T
L
U
A
F
Low Flame Sensor Signal
Continuous Flash
n
O
tn
es
er
P
e
mal
F
NO
TES:
1.
Disconnect po
wer bef
ore servicing.
2.
For suppl
y connections use copper conducto
rs
onl
y.
3.
Not suitable on systems that e
xceed 150V to gr
ound.
4.
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 temp.
rating of at least 105˚C.
5.
For supp
ly
wire ampacities and o
ver
current pr
otection
, see unit rating plat
e.
6.
Ensure that wires fr
om the bl
ow
er remain connected to the boa
rd
thermostat terminals after making the field thermostat connections.
7.
Wiring sho
wn f
or single stage operation.
For tw
o stage operation
, mo
ve br
o
wn wire fr
om
lo
w side of the gas v
alve to
W2 on the terminal bloc
k and remo
ve jumper fr
om
W1 to
W2.
See installation instructions f
or an alternate means of contr
olling second stag
e.
8.
A heat pump thermostat with f
ossil fuel bac
k-up heat capability is REQUIRED f
or this system.
BR
OW
N
WIRING DIA
GRAM
711072
0
0310
(Replaces 7108140)
¢711072w¤
R
S
C
L1
L2
T1
T2
TO
208/230
VA
C
PO
WER SUPPL
Y
DU
AL CAP
A
CIT
OR
C
HF
OUTDOO
R
FAN MO
TO
R
54
321
54
321
VA
RIABLE
SPEED
BLO
WER
MO
TO
R
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
YELL
OW
YELL
OW
BLA
CK
GRA
Y
BLUE
BLUE
BR
OW
N
ORANGE
ORANGE
RED
WHITE
GREEN
13
R
12
HUM
HUM
10
5
7
11
2
W
4
12
34
56
78
9
D1
D2
D3
D4
D5
D6
D7
D8
VA
RIABLE SPEED BO
ARD
FLAME
TWIN
S
TA
TUS
L1
XFMR
EA
C
COOL
HEA
T
M3
M2
M1
HU
M
NEUTRALS
EAC
COM
3 AMP FUSE
BLOWER OFF
24V
HUM
1
2
3
4
5
6
7
8
9
4
5
6
1
2
3
RC
YG
W
HI
LO
PRIMAR
Y
GAS
VA
LV
E
C
PRESSURE
SWITCH
GR
OUND
LIMIT
SWITCH
FLAME R
OLL-OUT
SWITCH
FLAME SENSOR
11
22
R
C
INDUCER MO
TO
R
IGNIT
OR
BR
OW
N
BR
OW
N
AMBIENT
SENSOR
TEST
LR
CY
O
W2
IN
W2
OUT
COND
FA
N
AMBIENT
AMBG
COILG
COIL
DEMAN
D
DEFR
OST CONTR
OL
BO
AR
D
M
PRESS
SW
REV
VA
LV
E
TERM
.
STRIP
G
C
L
W1
R
Y2
E
O
Y1
W2
REV . VA
LVE SOL.
BLA
CK
LO
W
PRESSUR
E
SWITC
H
HIGH
PRESSURE
SWITC
H
YELLO
W/
BLA
CK
COIL
SENSOR
TRANSFORMER
240V
208V
24V
COM
COMPRESSOR
CONT
AC
TO
R
R
S
C
CC
H
IF
EQUIPPED
YELLO
W/
BLA
CK
YELLO
W
BL
AC
K
BLUE
BLA
CK
02-YB-43 (28)
RED
BLA
CK/WHITE
GREEN
WHITE
BLA
CK
RED
WHITE
RED
BL
AC
K
BLA
CK
RED
RED
RED
YELL
OW
BR
OW
N
BR
OW
N
BLA
CK
BL
AC
K
GREEN
ORANGE
ORANGE
ORANGE
RED
YELL
OW
YELL
OW
BR
OW
N
BR
OW
N
BLUE
GREEN
BLUE
RED
BLA
CK
BLUE
BLUE
RED
WHITE
YELLO
W
WHITE
ORANGE
YELLOW
BLACK
RED
BROW
N
WHITE
BLA
CK
BLA
CK
YELLO
W/BL
AC
K
YELLOW
WHIT
E
BLA
CK
YELLO
W
