Trane TCONT402AN32DA - Troubleshooting; Common System Issues

Pub. No. 18-HD29D3-4 5
Installer’s Guide
Figure DF-1
Figure DF-3
Figure DF-2
Figure DF-4
R
G
Y/
Y1
W1
B
24VAC HOT
24VAC
common
COMFORT CONTROL
DUAL FUEL TWO STEP HEAT PUMP
TWO STAGE VS GAS FURNACE
USE ONLY WITH 16 SEER CONDENSER
BK DISABLED
FAN
SOV
COOL/HEAT -
1st STAGE
HEATING -
3rd STAGE
HEATING -
4th STAGE
W2
O
R
G
W2
Y1/
Y
LO
Y1
B
TWO STEP
HEAT PUMP
W1
TWO STAGE
VARIABLE SPEED
GAS FURNACE
B
C
W3
Y2
COOL/HEAT -
2nd STAGE
BK
Y/
Y2
Y2
BK
O
O
R
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.
Note C - Cut the JP1 jumper on the Comfort Control, for Dual Fuel.
O D Temp
OT1
O D Temp
OT2
O D
Sensor
T
NOTE: See Fig. OIL-1 for external relay connections for oil furnaces.
R
G
Y/
Y1
W1
B
24VAC HOT
24VAC
common
COMFORT CONTROL
DUAL FUEL SINGLE STAGE HEAT PUMP
TWO STAGE VS GAS FURNACE
BK DISABLED
FAN
SOV
COOL/HEAT -
1st STAGE
HEATING -
2nd STAGE
HEATING -
3rd STAGE
W2
O
W3
Y2
BK
Y
B
SINGLE STAGE
HEAT PUMP
O
R
T
TWO STAGE VARIABLE
SPEED GAS FURNACE
X2
R
G
W2
Y1/
Y
LO
W1
B
C
BK
Y/
Y2
O
O D Temp
OT1
O D Temp
OT2
O D
Sensor
Note C - For Dual Fuel, cut the JP1 jumper on the Comfort Control.
NOTE: See Fig. OIL-1 for external relay connections for oil furnaces.
R
G
Y/
Y1
W1
B
24VAC HOT
24VAC
common
COMFORT CONTROL
DUAL FUEL ONE OR TWO STAGE OR TWO STEP HEAT PUMP
TWO STAGE VS GAS FURNACE
BK ENABLED
FAN
SOV
COOL/HEAT -
1st STAGE
HEATING -
3rd STAGE
HEATING -
4th STAGE
W2
O
R
G
W2
Y1/
Y
LO
Y1
B
ONE OR TWO STAGE
OR TWO STEP
HEAT PUMP
W1
TWO STAGE
VARIABLE SPEED
GAS FURNACE
B
C
W3
Y2
COOL/HEAT
-2nd STAGE
BK
VS MODE -fan
Y/
Y2
Y2
BK
O
O
R
X2
F
Note B - Cut/remove the factory installed "BK" jumper at the indoor unit.
Note C - For Dual Fuel, cut the JP1 jumper on the Comfort Control.
O D Temp
OT1
O D Temp
OT2
O D
Sensor
T
NOTE: See Fig. OIL-1 for
external relay connections
for oil furnaces.
R
G
Y/
Y1
W1
B
24VAC HOT
24VAC
common
COMFORT CONTROL
DUAL FUEL TWO STAGE HEAT PUMP
TWO STAGE VS GAS FURNACE
BK DISABLED
FAN
SOV
COOL/HEAT -
1st STAGE
HEATING -
3rd STAGE
HEATING -
4th STAGE
W2
O
R
G
W2
Y1/
Y
LO
Y1
B
TWO STAGE
HEAT PUMP
W1
TWO STAGE
VARIABLE SPEED
GAS FURNACE
B
C
W3
Y2
COOL/HEAT -
2nd STAGE
BK
Y/
Y2
Y2
BK
O
O
R
X2
F
O D Temp
OT1
O D Temp
OT2
O D
Sensor
T
Note C - For Dual Fuel, cut the JP1 jumper on the Comfort Control.
NOTE: See Fig. OIL-1 for external relay connections for oil furnaces.