8 Pub. No. 18-HD29D3-4
Installer’s Guide
R
G
Y/
Y1
W1
B
24VAC HOT
24VAC
common
COMFORT CONTROL
TWO STAGE HEAT PUMP
VARIABLE SPEED AIR HANDLER
BK DISABLED
FAN
SOV
COOL/HEAT -
1st STAGE
HEATING -
3rd STAGE
HEATING -
4th STAGE
W2
O
R
G
W1
W2
Y1/
Y
LO
Y1
B
TWO STAGE
HEAT PUMP
VARIABLE SPEED
AIR HANDLER &
ELECTRIC HEAT
B
W3
HEATING -
5th STAGE
Y2
COOL/HEAT -
2nd STAGE
BK
Y/
Y2
Y2
BK
W3
O
O
R
F
X2
O D Temp
OT1
O D Temp
OT2
O D
Sensor
T
R
G
Y/
Y1
W1
B
24VAC HOT
24VAC
common
COMFORT CONTROL
TWO STEP HEAT PUMP
VARIABLE SPEED AIR HANDLER
BK DISABLED
FAN
SOV
COOL/HEAT -
1st STAGE
HEATING -
3rd STAGE
HEATING -
4th STAGE
W2
O
R
G
W1
W2
Y1/
Y
LO
Y2
B
TWO STEP
HEAT PUMP
VARIABLE SPEED
AIR HANDLER &
ELECTRIC HEAT
B
C
W3
HEATING -
5th STAGE
Y2
COOL/HEAT -
2nd STAGE
BK
Y/
Y2
Y1
BK
W3
O
O
R
O D Temp
OT1
O D Temp
OT2
O D
Sensor
T
X2
Note A - The installer must jumper "R" to "O" at the LVTB.
Note B - Cut/remove the factory installed "BK" jumper at the indoor unit.
R
G
Y/
Y1
W1
B
24VAC HOT
24VAC
common
COMFORT CONTROL
SINGLE STAGE HEAT PUMP
VARIABLE SPEED AIR HANDLER
BK DISABLED
FAN
SOV
COOL/HEAT -
1st STAGE
HEATING -
2nd STAGE
HEATING -
3rd STAGE
W2
O
R
G
W1
W2
Y1/
Y
LO
B
SINGLE STAGE
HEAT PUMP
VARIABLE SPEED
AIR HANDLER &
ELECTRIC HEAT
B
C
W3
HEATING -
4th STAGE
Y2
BK
Y/
Y2
Y
BK
W3
O
O
R
X2
O D Temp
OT1
O D Temp
OT2
O D
Sensor
T
R
G
Y/
Y1
W1
B
24VAC HOT
24VAC
common
COMFORT CONTROL
SINGLE STAGE HEAT PUMP
NON-VARIABLE SPEED AIR HANDLER
BK DISABLED
FAN
SOV
COOL/HEAT
1st STAGE
HEATING -
2nd STAGE
HEATING -
3rd STAGE
W2
O
W3
HEATING -
4th STAGE
Y2
BK
R
G
W1
W2
Y
Y
B
SINGLE STAGE
HEAT PUMP
O
R
AIR HANDLER &
ELECTRIC HEAT
B
X2
W3
T
O D Temp
OT1
O D Temp
OT2
O D
Sensor
Figure HP-4
Figure HP-6
Figure HP-5
Figure HP-7
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