Installation Guide
14
18-HD68D1-10
Diagram 14 - 1 or 2 Stage Cooling w/Variable Speed S9V2 (4-pin VSPD Motor)
Diagram 13 - 1 or 2 Stage Cooling w/Variable Speed Gas Furnace (16-pin VSPD Motor)
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 and remove the factory installed BK jumper at
the indoor unit IFC Board (some units may require
DIP switch settings)
2. R connection at outdoor unit is required only for two
compressor / two stage units
12- 1 OR 2 STAGE COOLING W/VARIABLE SPEED GAS FURNACE (16-PIN VSPD MOTOR)
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
O
R
B/C
Y1/Ylo
BK
Y/Y2
W1
W2
G
INDOOR UNIT
R
B
Y/Y1
Y2
OUTDOOR UNIT
COMMUNICATING
CONTROL
D
R
B
D
R
B
1
3
2
13- 1 OR TWO STAGE COOLING w/S9V2 FURNACE (4-PIN VSPD MOTOR)
*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 factory installed BK jumper at the indoor unit
IFC Board
2. R connection at outdoor unit is required only for two
compressor / two stage units
3. Y1 and Y2 wiring from the Relay Panel must connect
to Y1 and Y2 of the indoor unit IFC for proper air flow
and LED read out
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
O
R
B/C
Y1/Ylo
BK
Y/Y2
W1
W2
G
INDOOR UNIT
R
B
Y/Y1
Y2
OUTDOOR UNIT
COMMUNICATING
CONTROL
D
R
B
D
R
B
