FIELD WIRING
LEGEND:
LOW VOLTAGE
HIGH VOLTAGE
1. Couper le courant avant de faire letretien.
2. Employez uniquement des conducteurs en cuivre.
3. Ne convient pas aux installations de plus de 150 V a la terre.
208/230 VoltDual Fuel Heating and Cooling Packaged System Single Phase / 60 Hz.
NOTES:
1. Disconnect power before servicing.
2. For supply connections use copper conductors only.
3. Not suitable on systems that exceed 150V to ground.
4. If any of the original wire as supplied with the furnace must be replaced, it must
be replaced with wiring material having a temperature rating of at least 105°C.
5. For supply wire ampacities and overcurrent protection, see unit rating plate.
6. Ensure that wires from the blower remain connected to the board thermostat terminals after
making the field thermostat connections.
7. A heat pump thermostat with fossil fuel back-up heat capability is REQUIRED for this system.
WIRING DIAGRAM
SYSTEM STATUS - IGNITION
Power On (Normal Operation)
High Limit Circuit Open
Pressure Switch Open with Inducer On
Pressure Switch Closed with Inducer Off
Failed Ignition (5 attemps) - Control in 1 Hour Lockout
208-230 Volt Polarity Issue
Excess High limit trips (5) within one call for heat
Excess pressure switch cycles (5) within one call for heat
Excess flame dropouts (5) within one call for heat
Not Used
Flame present with gas valve Off
LED STATUS (RED)
ON
1 Flash
2 Flashes
3 Flashes
4 Flashes
5 Flashes
6 Flashes
7 Flashes
8 Flashes
9 Flashes
10 Flashes
SYSTEM STATUS - 2nd STAGE HEAT DEMAND
No demand for 2nd stage heat
2nd stage heat demand (Normal operation)
2nd stage heat demand, high pressure switch not closed
LED STATUS (GREEN)
OFF
ON
Flashing
SYSTEM STATUS - CFM
NOT USED
LED STATUS (YELLOW)
OFF
SYSTEM STATUS - HI/LO DEHUMIDIFY (Cooling Mode only)
Factory jumper wire “R” to “DEHUM” in place or
“Close on Fall” humidistat (Low humidity) - Closed
Humidistat open (High Humidity) Low Speed Blower call
LED STATUS (GREEN)
ON
OFF
DEFROST BOARD OPERATION:
-- 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 cycles. 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 either the outdoor coil temperature sensor reaches
the defrost terminate set point, or 13 minutes, 39 seconds of compressor run time
has elasped with the control in the defrost mode. (See installation instructions for
available terminate temperatures and their specific jumper location)
7111840
(Replaces 711137A)
11/11
GAS VALVE
624787
GAS VALVE
624652
HILO
GAS VALVE
C
BROWN
YELLOWYELLOW
BROWN
TEST
LRCYO
W2
IN
W2
OUT
COND FAN
AMBIENT
AMBG
COILG
COIL
DEMAND
DEFROST CONTROL
BOARD
M
PRESS
SW
REV
VALVE
2
1
3
6
5
4
78
9
12
11
10
W1
W2
C
R
G
Y
Y2
0
DEHUM
P2
1
5
(CFM)
YEL
GREEN
HI/LO
DEHUMIDIFY
(HIGH HEAT
DEMAND)
GREEN
(STATUS)
RED
1
2
3
1
2
3
INDUCER
MOTOR
FLAME ROLL-OUT
SWITCH
HIGH TEMP LIMIT
SWITCH
FLAME SENSOR
LPS
DUAL CAPACITOR
TERM.
STRIP
REV. VALVE
SOLENOID
54321
54321
VARIABLE
SPEED
BLOWER
MOTOR
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
R
S
C
CHF
TO 208/230 VAC
POWER SUPPLY
IGNITOR
CONTACTOR
COMPRESSOR
L1L2
T1
T2
COIL
SENSOR
AMBIENT
SENSOR
G
C
L
W1
R
Y2
E
O
Y1
W2
TRANSFORMER
240V
208V
24V
COM
BROWN
BROWN
BLACK
BLACK
CCH
IF
EQUIPPED
HPS
YELLOW
YELLOW
NEUTRALS
HUM
LINE
XMFR
CONT
EAC
COOL
PARK1
PARK2
HI-HEAT
LO-HEAT
P6
16-
PIN
OUTDOOR
FAN MOTOR
BLACK
YELLOW
YELLOW
5A FUSE
R
S
C
BLUE
ORANGE
BLUE
BLUE
AUTO
HEAT STAGE
10 5 NONE
IGNITION / BLOWER
CONTROL BOARD
COOL
A B C D
HEAT
A B C D
ADJUST
NORM
(+)
(-)
TEST
LOW
PRESSURE
SWITCH
HIGH
PRESSURE
SWITCH
HILO
GAS VALVE
C
21 3
BLUE
BLUE
BLACK
RED
BROWN
BROWN
BLACK
RED
GREEN
BLACK
VIOLET
ORANGE
WHITE
YELLOW/BLACK
BLACK/WHITE
BLACK
BLACK
BLACK
GREEN
YELLOW
YELLOW
YELLOW
YELLOW
BROWN
BROWN
GREEN
YELLOW
ORANGE
BLUE
RED
BLACK
WHITE
WHITE
BROWN
YELLOW
ORANGE
RED
BLACK
BLACK
WHITE
BROWN
GREEN
YELLOW
ORANGE
BLUE
RED
BLACK
RED
RED
WHITE
RED
WHITE
WHITE
WHITE
RED
BLACK
YELLOW
YELLOW
RED
BLACK
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