824 Programmable Wi-Fi Comfort Control
18-HD72D1-6
23
4.7 Dual Fuel Applications
Diagram 31 - 1 Stage Heat Pump w/Non-Variable Speed Gas Furnace
Diagram 30 - 1 or 2 Stage Heat Pump w/Variable Speed Gas Furnace
AUX 1
AUX 2
24VAC HOT
COMMON
SOV
COOLING
FAN
HEATING
ODT
RS
AUX1
AUX1
AUX2
AUX2
RC
RH
B/C
O
Y1
Y2
G
BK
W1
W2
G
BK
W1
W2
W3
ODT
ODT
RS1
RS1
O
Y2
O
R
B
R
X2
B
Y/Y1
Y1/Ylo
Y/Y2
824 COMFORT CONTROL
30 - 1 OR 2 STAGE HEAT PUMP W/VARIABLE SPEED GAS FURNACE
INDOOR UNIT
OUTDOOR UNIT
NOTES:
1. Cut and remove the factory installed BK jumper at
the indoor unit (some units may require DIP switch
settings)
2. For restricted mode operation, a wired ODT sensor
must be connected to the 824
3. Connection to X2 is not required for this
configuration
Optional
Outdoor
Sensor*
Optional
Remote
Sensor*
2
1
3
*Caution: Do not run Outdoor/Remote
sensor wires in the same bundle with
HVAC wires. Also, keep away from high
voltage wiring to avoid interference.
X2
AUX 1
AUX 2
24VAC HOT
COMMON
SOV
COOLING
FAN
HEATING
ODT
RS
AUX1
AUX1
AUX2
AUX2
RC
RH
B/C
O
Y1
Y2
G
BK
W1
W2
G
W1
W2
W3
ODT
ODT
RS1
RS1
O
R
B
Y
R
B
Y
1
31 - 1 STAGE HEAT PUMP W/NON-VARIABLE SPEED GAS FURNACE
824 COMFORT CONTROL
INDOOR UNIT
OUTDOOR UNIT
NOTES:
1. For restricted mode operation, a wired ODT sensor
must be connected to the 82
2. Connection to X2 is not required for this
configuration
Optional
Outdoor
Sensor*
Optional
Remote
Sensor*
2
*Caution: Do not run Outdoor/Remote sensor
wires in the same bundle with HVAC wires.
Also, keep away from high voltage wiring to
avoid interference.
