Trane TCONT803AS32DA, TCONT802AS32DA User Manual
TCONT802AS32DA Touch Screen and
TCONT803AS32DA Touch Screen with
Dehumidification Control Comfort Controls
18-HD25D19-3
INSTALLATION INSTRUCTIONS
APPLICATION
The TCONT802AS32DA and TCONT803AS32DA Touch Screen Comfort Controls provide electronic control of 24 Vac
heating and cooling systems. See Table 1 for a general description.
Table 1. TCONT802AS32DA and TCONT803AS32DA Comfort Control Description.
Power Method Changeover System Selection Fan Selection Comments
24 Vac common
wire
MERCURY NOTICE
If this control is replacing a control that contains
mercury in a sealed tube, do not place your old
control in the trash. Dispose of properly.
Contact your local waste management authority
for instructions regarding recycling and the
proper disposal of the old control.
Automatic or
manual selectable
Heat-Off-CoolAuto (Em. Heat
for heat pumps)
On-Auto-Circ System and Fan selection
vary based on system type
System and Fan selection
vary based on System type.
Humidity sensor to control
dehumidification.
Selecting Location
Install the comfort control about 5 ft. (1.5m) above the
floor in an area with good air circulation at average
temperature. See Fig. 1.
INSTALLATION
When Installing this Product...
1. Read these instructions carefully. Failure to follow
the instructions can damage the product or cause
a hazardous condition.
2. Installer must be a trained, experienced service
technician.
3. After completing installation, use these instructions
to check out the product operation.
U.S. Pat. No. 6595430, D509151, and Other Patents Pending
NO
YES
NO
NO
Fig. 1. Selecting comfort control location.
5 FEET
[1.5 METERS]
M19925
69-1790-3
TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
/COOL
SC
S
P
S1
S2
C
G
Do not install the comfort control where it can be affected
by:
— Drafts or dead spots behind doors and in corners.
— Hot or cold air from ducts.
— Radiant heat from sun or appliances.
— Concealed pipes and chimneys.
— Unheated (uncooled) areas such as an outside wall
behind the comfort control.
Installing Wallplate
CAUTION
Electrical Hazard.
Can cause electrical shock or equipment
damage.
Disconnect power before wiring.
The comfort control can be mounted horizontally on the
wall or on a 4 in. x 2 in. (101.6 mm x 50.8 mm) wiring box.
1. Position and level the wallplate (for appearance
only).
2. Use a pencil to mark the mounting holes.
WALL
WIRES THROUGH WALL
AND WIRE SLOT
WALL ANCHORS (2)
MOUNTING
HOLES
MOUNTING
SCREWS (2)
Fig. 2. Mounting wallplate.
3. Remove the wallplate from the wall and, if drywall,
drill two 3/16-in. holes in the wall, as marked. For
firmer material such as plaster, drill two 7/32-in.
holes. Gently tap anchors (provided) into the drilled
holes until flush with the wall.
4. Position the wallplate over the holes, pulling wires
through the wiring opening. See Fig. 2.
5. Insert mounting screws into the holes and tighten.
M19916
3. Securely tighten each screw.
4. Push excess wire back into the hole.
5. Plug the hole with nonflammable insulation to pre-
vent drafts from affecting the comfort control.
HEAT PUM
HEAT
Y2
F
X2
W1
S1
S2
Fig. 3. Selecting terminal identifications for
Table 2. Selecting Terminal Identifications for
W2
system type.
System Type.
System Type
R
W1
REW TERMINAL
Wallplate
Ter mi nal
Identifications
Standard Heat/Cool Heat/Cool Fig. 5,
Standard Multistage
up to 2 Heat/2 Cool
Heat Pump with
Electric Auxiliary
(Backup) Heat
Heat Pump with
Fossil Fuel Auxiliary
(Dual Fuel) Heat
NOTE: The factory default setting is configured for a
1 Heat/1 Cool System with a gas furnace.
Heat/Cool Fig. 7,
Heat Pump Fig. 9,
Heat Pump Fig. 12,
RC
R
O
Y
Y
G
B
M22636
Wiring
Diagram
Reference
Fig. 6
Fig. 8
Fig. 10,
Fig. 11
Fig. 13,
Fig. 14,
Fig. 15
WIRING (FIG. 5-15)
All wiring must comply with local electrical codes and
ordinances.
1. Select set of terminal identifications (Table 2) that
corresponds with system type (heat/cool or heat
pump in Fig. 3).
2. Loosen the screws for the appropriate system type
selected; see Table 2. Insert wires in the terminal
block under the loosened screw. See Fig. 4.
Pub. No. 18-HD25D19-3
69-1790—3 2
Fig. 4. Inserting wires in terminal block.
IMPORTANT
Use 18 gauge comfort control wire.
M19917
TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
HEAT/COOL
Y2
W2
S1
S2
T
2
GYR
W1
INDOOR
OUTDOOR
ODT
Y
TO POWER SUPPLY
PER LOCAL CODES
FACTORY INSTALLED JUMPER.
1
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE
2
ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE
FROM THE THERMOSTAT CABLE.
Fig. 5. Typical hookup of single-stage heat and cool
system with single transformer (1H/1C).
Y2
W2
S1
S2
T
1
GYR
T
OIL BURNER PRIMARY
INDOOR
OUTDOOR
Y
TO POWER SUPPLY
PER LOCAL CODES
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE
1
ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE
FROM THE THERMOSTAT CABLE.
Fig. 6. Typical hookup of single-stage heat and cool
system with two transformers (1H/1C).
1
W2
T
W3
B/C
B
(3 PH
ONLY)
HEAT/COOL
W
B/C
B
(3 PH
ONLY)
RC
R
W1
Y
G
B
RC
R
W1
Y
G
B
AIR
HANDLER
COOLING UNIT
O.D. SECTION
(SINGLE STAGE)
OIL
FURNACE
COOLING UNIT
O.D. SECTION
(SINGLE STAGE)
M22637
M22638
HEAT/COOL
Y2
W2
S1
S2
T
2
O
LO
BKR
Y
Y
Y2
Y1
TO POWER SUPPLY
PER LOCAL CODES
FACTORY INSTALLED JUMPER.
1
2
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE
ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE
FROM THE THERMOSTAT CABLE.
Fig. 7. Typical hookup of two-stage indoor and
two-stage cooling unit in a single transformer system
Y2
W2
S1
S2
1
2
3
Fig. 8. Typical hookup of two-stage indoor and
two-step scroll cooling unit in a single transformer
(2H/2C or 2H/1C or 1H/2C).
T
2
3
O
BK R
Y2
FACTORY INSTALLED JUMPER.
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE
ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE
FROM THE THERMOSTAT CABLE.
THE INSTALLER MUST JUMPER AT THE LVTB “R” TO “O”.
LO
Y
Y1
Y
TO POWER SUPPLY
PER LOCAL CODES
system (2H/2C or 2H/1C or 1H/2C).
1
G
W1
INDOOR
OUTDOOR
HEAT/COOL
1
W1
G
W2
RC
R
W1
Y
G
B
B/C
W2
B
(3 PH
ONLY)
RC
R
W1
Y
G
B
B/C
B
(3 PH
ONLY)
VARIABLE SPEED
TWO-STAGE
FURNACE/VARIABLE
SPEED AIR HANDLER
COOLING UNIT
O.D. SECTION
(TWO STAGE)
M22640
VARIABLE SPEED
TWO STAGE
FURNACE
INDOOR
OUTDOOR
16 SEER
COOLING UNIT
O.D. SECTION
(TWO STEP)
M24231
3 69-1790—3
Pub. No. 18-HD25D19-3
TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
HEAT PUMP
Y2
F
X2
W1
S1
S2
T
2
O
GYR
W1
ODT-1
ODT-2
INDOOR
OUTDOOR
O
Y
R
FACTORY INSTALLED JUMPER.
1
2
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE
ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE
FROM THE THERMOSTAT CABLE.
1
W2
RC
R
O
Y
G
B
I-PF
SUPPL. HTR.
CONTROL BOX
W3
TO POWER
SUPPLY PER
LOCAL
CODES AND
AS DEFINED
IN FIELD
WIRING TABLE
BR(T)X2/BK
TO POWER SUPPLY
PER LOCAL CODES
PM-A
REQ.
FOR
3 PH
AIR
B/C
T
HANDLER
HEAT PUMP
O.D. SECTION
B
(SINGLE STAGE)
(3 PH
ONLY)
M22641
Fig. 9. Typical hookup of single-stage heat pump with auxiliary/backup heat (2H/1C heat pump).
HEAT PUMP
Y2
F
X2
W1
S1
S2
T
2
BK
YLO
OYR
G
INDOOR
OUTDOOR
Y2
O
R
1
2
Y1
FACTORY INSTALLED JUMPER.
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS.
WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE.
1
W1
ODT-1
ODT-2
X2/BK
RC
R
O
Y
G
B
I-PF
PM-A
SUPPL. HTR.
CONTROL BOX
W3
W2
WIRING TABLE
BR(T)
REQ.
FOR
3 PH
TO POWER
SUPPLY PER
LOCAL
CODES AND
AS DEFINED
IN FIELD
TO POWER SUPPLY
PER LOCAL CODES
F
VARIABLE
B/C
T
SPEED AIR
HANDLER
HEAT PUMP
O.D. SECTION
B
(TWO STAGE)
(3 PH
ONLY)
M22642
Fig. 10. Typical hookup of multistage heat pump with auxiliary/backup heat (3H/2C heat pump).
Pub. No. 18-HD25D19-3
69-1790—3 4
TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
HEAT PUMP
Y2
F
X2
W1
S1
S2
T
2
3
O
BK R
G
LO
Y
Y2
Y1
O
R
FACTORY INSTALLED JUMPER.
1
2
OUTDOOR REMOTE SENSOR. WIRES MUST HAVE A CABLE
SEPARATE FROM THE THERMOSTAT CABLE.
THE INSTALLER MUST JUMPER AT THE LVTB “R” TO “O”.
3
X2/BK
TO POWER SUPPLY
PER LOCAL CODES
1
Y
BR(T)
W1
W2
RC
R
O
Y
G
B
VARIABLE SPEED
B/C
AIR HANDLER
INDOOR
OUTDOOR
B
(3 PH
ONLY)
16 SEER
HEAT PUMP
O.D. SECTION
(TWO STEP)
M24230
Fig. 11. Typical hookup of multistage two-step scroll heat pump with auxiliary/backup heat (3H/2C heat pump).
HEAT PUMP
Y2
F
X2
W1
S1
2
S2
T
1
RC
R
O
Y
G
B
NON-V.S.
ONE OR TWO
R
R O BR(T)X2/BK
1
FACTORY INSTALLED JUMPER.
OUTDOOR REMOTE SENSOR. WIRES MUST HAVE A
2
CABLE SEPARATE FROM THE THERMOSTAT CABLE.
G
Y
Y
W1
INDOOR
OUTDOOR
TO POWER SUPPLY
PER LOCAL CODES
W2
(3 PH
ONLY)
M24200
B/C
B
STAGE GAS
FURNACE
HEAT PUMP
O.D. SECTION
(SINGLE STAGE)
Fig. 12. Typical hookup of singe-stage heat pump with non-variable speed gas furnace.
5 69-1790—3
Pub. No. 18-HD25D19-3
TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
HEAT PUMP
(3 PH
ONLY)
M24201
RC
R
O
Y
G
B
B
VARIABLE
SPEED
TWO STAGE
FURNACE
HEAT PUMP
O.D. SECTION
(SINGLE STAGE)
Y2
F
X2
W1
S1
2
S2
T
1
O
R
BK
R O BR(T)BR/X2
1
FACTORY INSTALLED JUMPER.
OUTDOOR REMOTE SENSOR. WIRES MUST HAVE A
2
CABLE SEPARATE FROM THE THERMOSTAT CABLE.
Fig. 13. Typical hookup of single-stage heat pump with two stage variable speed gas furnace
G
Y
LO
Y
OR BK
(2H/1C heat pump).
1
W1 W2
YB/C
INDOOR
OUTDOOR
TO POWER SUPPLY
PER LOCAL CODES
Pub. No. 18-HD25D19-3
69-1790—3 6
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