RELAY PANEL
18-HD68D1-10 25
Diagram 3 - 1 Communicating VS Heat Pump w/Non-Communicating S9V2 Furnace
3 - 1 STAGE HEAT PUMP W/NON-VARIABLE SPEED GAS FURNACE
SOV
STG2
STG1
STG1
STG3
STG2
FAN
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONL
Y
24V
ONL
Y
24V
ONL
Y
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
R
R
X2
B
G
INDOOR
UNIT
B
Y
O
Y
W1
W2
OUTDOOR UNIT
COMMUNICATING
CONTROL
D
R
B
D
R
B
*See note on page 7 regarding HUM and AUX
terminals.
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.
1
2
*See note on page 7 regarding HUM and AUX
terminals.
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.
NOTES:
1. Cut the BK jumper at the indoor unit - After cutting the
jumper, power must be off or cycled on-off-on for the
IFC to work properly
2. Requires either:
a.) 1050 control
b.) 850 control with 3.0 or later software
Note:
Not a valid combination with 950 control
CFM/Ton must be set to 400
Furnace LED’s will read “
CoF”
continous fan during
cooling operation
SOV
STG2
STG1
STG1
STG3
STG2
FAN
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONL
Y
24V
ONL
Y
24V
ONL
Y
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
R
O
B/C
Y1/Ylo
BK
Y/Y2
W1
W2
G
INDOOR UNIT
D
R
B
OUTDOOR UNIT
COMMUNICATING
CONTROL
D
R
B
D
R
B
14-Communicating VS Heatpump w/Non-Communicating S9V2 Furnace (4 pin VSPD Motor)
Diagram 4 - 1 Stage Heat Pump w/Non-Variable Speed Gas Furnace
