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
Automatic or
System Selection
Fan Selection
Comments
24 Vac common
wire
Heat-Off-Cool-
Auto (Em. Heat
for heat pumps)
On-Auto-Circ
System and Fan selection
vary based on system type
manual selectable
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.
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.
NO
YES
INSTALLATION
NO
When Installing this Product...
5 FEET
[1.5 METERS]
NO
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.
M19925
Fig. 1. Selecting comfort control location.
U.S. Pat. No. 6595430, D509151, and Other Patents Pending
69-1790-3
TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
HEAT/COOL
HEAT/COOL
Y2
RC
R
1
RC
R
Y2
1
W1
Y
G
B
W1
Y
W2
S1
S2
W2
S1
G
S2
B
T
T
2
2
VARIABLE SPEED
TWO-STAGE
AIR
HANDLER
R
BK
O
YLO
G
W1 W2 B/C
Y
R
Y
G
W2 W3 B/C
W1
FURNACE/VARIABLE
SPEED AIR HANDLER
INDOOR
OUTDOOR
INDOOR
OUTDOOR
COOLING UNIT
O.D. SECTION
(SINGLE STAGE)
COOLING UNIT
O.D. SECTION
(TWO STAGE)
ODT
Y
B
B
Y1 Y2
(3 PH
ONLY)
(3 PH
TO POWER SUPPLY
PER LOCAL CODES
TO POWER SUPPLY
PER LOCAL CODES
ONLY)
1
2
FACTORY INSTALLED JUMPER.
1
2
FACTORY INSTALLED JUMPER.
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE
ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE
FROM THE THERMOSTAT CABLE.
M22637
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE
ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE
FROM THE THERMOSTAT CABLE.
M22640
Fig. 7. Typical hookup of two-stage indoor and
two-stage cooling unit in a single transformer system
(2H/2C or 2H/1C or 1H/2C).
Fig. 5. Typical hookup of single-stage heat and cool
system with single transformer (1H/1C).
HEAT/COOL
HEAT/COOL
RC
R
Y2
Y2
RC
R
W1
Y
G
1
W1
Y
W2
S1
S2
W2
S1
S2
G
B
B
T
T
1
2
3
OIL
FURNACE
R
Y
G
W
B/C
T
T
VARIABLE SPEED
TWO STAGE
FURNACE
R
BK
O
W1 W2 B/C
YLO
Y
G
OIL BURNER PRIMARY
INDOOR
OUTDOOR
INDOOR
OUTDOOR
16 SEER
COOLING UNIT
O.D. SECTION
(SINGLE STAGE)
COOLING UNIT
O.D. SECTION
(TWO STEP)
Y
B
Y2 Y1
B
(3 PH
ONLY)
TO POWER SUPPLY
PER LOCAL CODES
(3 PH
TO POWER SUPPLY
PER LOCAL CODES
ONLY)
1
2
FACTORY INSTALLED JUMPER.
1
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE
ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE
FROM THE THERMOSTAT CABLE.
M22638
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE
ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE
FROM THE THERMOSTAT CABLE.
3
THE INSTALLER MUST JUMPER AT THE LVTB “R” TO “O”.
M24231
Fig. 6. Typical hookup of single-stage heat and cool
system with two transformers (1H/1C).
Fig. 8. Typical hookup of two-stage indoor and
two-step scroll cooling unit in a single transformer
system (2H/2C or 2H/1C or 1H/2C).
Pub. No. 18-HD25D19-3
3
69-1790—3
TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
HEAT PUMP
Y2
F
X2
RC
R
O
1
W1
S1
S2
Y
G
B
T
2
I-PF
PM-A
SUPPL. HTR.
CONTROL BOX
AIR
R
Y
O
G
W2 W3
B/C
T
W1
HANDLER
REQ.
FOR
3 PH
ODT-1
ODT-2
TO POWER
SUPPLY PER
LOCAL
CODES AND
AS DEFINED
IN FIELD
WIRING TABLE
INDOOR
OUTDOOR
HEAT PUMP
O.D. SECTION
O
R
Y
B
X2/BK
BR(T)
(SINGLE STAGE)
(3 PH
ONLY)
TO POWER SUPPLY
PER LOCAL CODES
1
2
FACTORY INSTALLED JUMPER.
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE
ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE
FROM THE THERMOSTAT CABLE.
M22641
Fig. 9. Typical hookup of single-stage heat pump with auxiliary/backup heat (2H/1C heat pump).
HEAT PUMP
Y2
F
X2
RC
R
O
1
W1
S1
S2
Y
G
B
T
2
I-PF
PM-A
SUPPL. HTR.
CONTROL BOX
VARIABLE
SPEED AIR
HANDLER
R
BK
Y
YLO
O
W1
W2 W3
B/C
T
G
REQ.
FOR
3 PH
ODT-1
ODT-2
TO POWER
SUPPLY PER
LOCAL
CODES AND
AS DEFINED
IN FIELD
WIRING TABLE
INDOOR
OUTDOOR
HEAT PUMP
O.D. SECTION
(TWO STAGE)
BR(T)
X2/BK
F
B
Y2
O
Y1
R
(3 PH
ONLY)
TO POWER SUPPLY
PER LOCAL CODES
1
FACTORY INSTALLED JUMPER.
2
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS.
WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE.
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
RC
R
1
X2
W1
S1
S2
O
Y
G
B
T
2
3
VARIABLE SPEED
AIR HANDLER
R
R
BK
O
G
W1 W2 B/C
Y
YLO
INDOOR
OUTDOOR
16 SEER
HEAT PUMP
O.D. SECTION
(TWO STEP)
Y2 Y1 O
B
X2/BK BR(T)
(3 PH
TO POWER SUPPLY
PER LOCAL CODES
ONLY)
1
2
FACTORY INSTALLED JUMPER.
OUTDOOR REMOTE SENSOR. WIRES MUST HAVE A CABLE
SEPARATE FROM THE THERMOSTAT CABLE.
THE INSTALLER MUST JUMPER AT THE LVTB “R” TO “O”.
3
M24230
Fig. 11. Typical hookup of multistage two-step scroll heat pump with auxiliary/backup heat (3H/2C heat pump).
HEAT PUMP
RC
Y2
1
R
O
F
X2
Y
W1
G
B
S1
S2
2
T
NON-V.S.
ONE OR TWO
STAGE GAS
FURNACE
B/C
Y
W1
W2
R
G
INDOOR
OUTDOOR
HEAT PUMP
O.D. SECTION
(SINGLE STAGE)
R
Y
O
X2/BK
BR(T)
B
(3 PH
TO POWER SUPPLY
PER LOCAL CODES
ONLY)
1
2
FACTORY INSTALLED JUMPER.
OUTDOOR REMOTE SENSOR. WIRES MUST HAVE A
CABLE SEPARATE FROM THE THERMOSTAT CABLE.
M24200
Fig. 12. Typical hookup of singe-stage heat pump with non-variable speed gas furnace.
Pub. No. 18-HD25D19-3
69-1790—3
5
TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
HEAT PUMP
RC
Y2
1
R
O
F
X2
Y
W1
G
B
S1
S2
2
T
1
VARIABLE
SPEED
TWO STAGE
FURNACE
R
BK
O
G
Y
W1
W2
B/C
YLO
INDOOR
OUTDOOR
HEAT PUMP
O.D. SECTION
(SINGLE STAGE)
R
Y
O
BR/X2
OR BK
BR(T)
B
(3 PH
TO POWER SUPPLY
PER LOCAL CODES
ONLY)
1
2
FACTORY INSTALLED JUMPER.
OUTDOOR REMOTE SENSOR. WIRES MUST HAVE A
CABLE SEPARATE FROM THE THERMOSTAT CABLE.
M24201
Fig. 13. Typical hookup of single-stage heat pump with two stage variable speed gas furnace
(2H/1C heat pump).
Pub. No. 18-HD25D19-3
69-1790—3
6
TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
HEAT PUMP
RC
Y2
1
R
O
F
X2
Y
W1
G
B
S1
S2
2
T
1
VARIABLE
SPEED
TWO STAGE
FURNACE
Y1/
R
BK
O
G
Y/Y2
W1
W2
B/C
YLO
INDOOR
OUTDOOR
HEAT PUMP
O.D. SECTION
(TWO STAGE)
R
Y2
O
X2/BK
BR(T)
Y1
F
B
(3 PH
TO POWER SUPPLY
PER LOCAL CODES
ONLY)
1
2
FACTORY INSTALLED JUMPER.
OUTDOOR REMOTE SENSOR. WIRES MUST HAVE A
CABLE SEPARATE FROM THE THERMOSTAT CABLE.
M24202
Fig. 14. Typical hookup of multistage heat pump with two stage variable speed gas furnace (3H/2C heat pump).
Pub. No. 18-HD25D19-3
7
69-1790—3
TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
HEAT PUMP
RC
Y2
1
R
O
F
X2
Y
W1
G
B
S1
S2
2
T
1
VARIABLE
SPEED
TWO STAGE
FURNACE
R
BK
O
G
YLO
Y
W1
W2
B/C
3
INDOOR
OUTDOOR
16 SEER
R
Y2
O
X2/BK
BR(T)
Y1
B
HEAT PUMP
O.D. SECTION
(TWO STEP)
(3 PH
TO POWER SUPPLY
PER LOCAL CODES
ONLY)
1
FACTORY INSTALLED JUMPER.
OUTDOOR REMOTE SENSOR. WIRES MUST HAVE A
CABLE SEPARATE FROM THE THERMOSTAT CABLE.
2
3
M24203
REMOVE / CUT JUMPER FROM R TO BK.
Fig. 15. Typical hookup of multistage two-step scroll heat pump with two stage variable speed gas furnace
(3H/2C heat pump).
Three AAA alkaline batteries can be used to power the
comfort control for armchair programming only. To prevent
the comfort control and heating/cooling system from
Powering the Comfort Control
The Comfort Control can be powered with 24 Vac.
shutting down due to lack of battery power, it is not
24 Vac Common Power (Recommended)
recommended that the comfort control be solely powered
with the three AAA batteries during normal system
operation. When using batteries, make sure positive and
negative terminals are oriented correctly, as marked on
the device. See Fig. 16.
Wire the common side of the transformer to the B screw
of the comfort control wallplate. When installing in a single
transformer system, keep the jumper wire between the R
and Rc screws. When installing in a two-transformer
system, use the common from the cooling transformer to
connect to the B screw and remove the jumper wire
between the R and Rc screws.
Battery Power (Optional)
CAUTION
Equipment or Property Damage Hazard.
Using battery power only may not provide
adequate power to comfort control and can
cause damage during freezing conditions.
Connect the 24 Vac Common (B) wire from the
system transformer to the comfort control for
proper operation when the battery power is
drained.
BATTERIES (3)
M19918
Fig. 16. Installing batteries on comfort control back.
Pub. No. 18-HD25D19-3
69-1790—3
8
TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
This comfort control is designed to automatically keep the
current time and day in memory for up to ten years under
normal use once the calendar is set. When the comfort
control is first powered, the display is ready for the
Mounting the Comfort Control
1. Align the terminal screw blocks with the pins on the
back of the comfort control.
2. Push the comfort control straight onto the wallplate.
calendar date to be entered. See Fig. 19.
See Fig. 17.
SET CURRENT DAY
SET MONTH
WALL
MON
TUE
WED
THU
FRI
SAT
SUN
DONE
USE ARROWS TO SET YEAR AND TIME
SLATION
MOVEDURING
M22643
MON
WED
THU
FRI
SAT
SUN
OK TO PICK MULTIPLE DAYS SCREEN LOCKED
CHANGE FILTER UV LAMP HUMIDIFIER PAD
Fig. 17. Mounting comfort control on wallplate.
Adjusting Real-Time Clock
Setting Calendar and Time
Locate and remove the tab labeled Remove in the lower
left corner on the comfort control back. The tab must be
removed to activate the real-time clock. See Fig. 18.
DONE
M22645
Fig. 19. Setting calendar and time after initial
powerup.
REMOVE TAB TO ACTIVATE REAL TIME CLOCK
IMPORTANT
The tab on the back of the comfort control in the
lower left corner must be removed for this
feature to be active.
INSTALLATON
REMOVEDUING
Using the Comfort Control
The comfort control has a touch screen interface. Words
or symbols appear, highlighting the keys, as necessary, to
complete tasks. Always press the keys with your
fingertips. Sharp instruments like a pen or pencil point can
damage the comfort control.
INSTALLATON
REMOVEDUING
1. Use the arrow keys to set the Year, Month and Day,
as shown in Fig. 19.
2. Press the Done key.
M22644
Fig. 18. Removing tab to activate real-time clock.
3. Use the arrow keys to set the current time. See
Fig. 19.
4. Press the Done key.
Pub. No. 18-HD25D19-3
9
69-1790—3
TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
OPERATION
C
F
TO C
System and Fan Settings
The System default setting is Heat and the Fan default
setting is Auto.
EQUIPMENT
MONITOR
TO R
SYSTEM SETTINGS
M22646
Heat: controls heating system.
Off: heating and cooling are off.
Cool: controls cooling system.
Fig. 20. F terminal switch to R (power) side of system
transformer.
Auto: automatically changes between heating and cooling
systems, depending on indoor temperature. (See Installer
Setup section.)
Em Heat: emergency heat cycles to maintain
temperature. Compressor is locked out. (Used only for
heat pump systems with backup heat.)
Preprogrammed Settings
Table 3 shows the default program settings. See Owners’
Guide for complete instructions on changing the program.
FAN SETTINGS
Table 3. Default Program Settings.
Setpoints
The Fan setting can be programmed into the comfort
control schedule for each period (Wake, Leave, Return,
Sleep). See the Owners’ Guide for additional information.
Schedule
Period
Fan
Setting
Time
6:00AM 70°F
(21°C)
8:00AM 62°F
Heat
Cool
Wake
Leave
Return
Sleep
78°F
(25.5°C)
85°F
Auto
LED Indication (Requires 24 Vac Common
Connection)
An LED indicator is located in the upper right corner of the
comfort control. It is only visible when lighted:
Auto
Auto
Auto
(16.5°C) (29.5°C)
6:00PM 70°F
(21°C)
78°F
(25.5°C)
•
It indicates when the comfort control is in the
Emergency Heat mode. When in Em. Ht. mode, the F
terminal is continuously energized and the LED is on.
When the F terminal is wired to an equipment monitor,
the LED signals when a check or fail signal is sent to
the comfort control from the system. See Fig. 20. (This
can occur only when the comfort control is not in Em.
Ht. mode.)
10:00PM 62°F
82°F
(16.5°C) (28°C)
•
Pub. No. 18-HD25D19-3
69-1790—3
10
TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
INSTALLER SETUP
The comfort control works with many different system
types. To operate correctly, the comfort control must be
set up to operate the installed heating and/or cooling
system.
4. Release the two blank keys when the screen on the
comfort control matches the screen below.
Follow these steps to enter the Installer Setup:
1. Be sure the comfort control is powered.
2. Press and release the System Key.
THU
FAN
ON
DONE
Inside
Set To
AUTO
Following
Schedule
SYSTEM
ET
M22649
A
M
SCHED HOLD CLOCK SCREE
M22647
5. See screen below to review how the comfort control
keys are used during Installer Setup. See Table 4
for the Installer Setup Numbers and Settings.
3. Press and hold the two blank keys on either side of
the center blank key for approximately five seconds
until screen changes.
ADVANCE TO NEXT
INSTALLER SETUP
INSTALLER
SETUP
NUMBER
CURRENT
SETTING
MO
TU
WE
TH
FR
SA
SU
Inside
Set To
MON
WED
THU
FRI
SAT
SUN
Following
Schedule
SYSTE
M
EM
HEAT
OFF
DONE
CANC
DONE
CHANGE THE
CURRENT
SETTING
PRESS TO EXIT
INSTALLER SETUP
M22648
M22650
6. Press the Done key to exit the Installer Setup
screen.
Pub. No. 18-HD25D19-3
69-1790—3
11
TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
IMPORTANT
The Installer Setup Menu (Table 4) shows all the available options. These options customize themselves as
you make selections to the Installer Setup. Therefore, not all Installer Setup Selections are shown or are avail-
able to change.
Table 4. Installer Setup Menu.
Factory Setting
Other Choices
Installer
Setup
Number Option
Select
Description
Options
Description
Comments
Not used.
1 thru
0099
—
—
—
—
—
Date (Year
Upper)
0120
20
05
6
Set first two digits of 21
current calendar year
(20 for year 2005, etc)
21 —first two digits of current 2000 - 2178 available
calendar year (21xx)
Date (Year
Lower)
0130
Represents last two 00 -99 Select last two digits of current 2000 - 2178 available
digits of current
calendar year (2005).
calendar year.
Date (Month) 0140
Digit(s) represents
current calendar
month.
1-12
Select number that represents
current calendar month.
—
Date
(Day)
0150
0160
15
4
Digit(s) represents
current calendar date.
1-31
0
Select number that represents
current calendar date.
—
Schedule
Options
7-day programming
0—nonprogrammable
—
System Type 0170
Selection
1
1 Heat/1Cool
1-12
1—1heat/1cool
2—single-stage heat pump (no defaults vary by
aux. heat)
3—heat only (no fan)
4—heat only (with fan)
Available options and
comfort control.
System selection
automatically
5—hot water Series 20 (3-wire modifies some
or normally open zone valves) default settings and/
6—cool only
7—2 heat/1cool heat pump
8—2 heat/2 cool
or hides other
Installer Setup
options.
9—2 heat/1cool
10—1 heat/2 cool oil furnace
or 0H/2C
11—2 heat/2 cool heat pump
(with no auxiliary heat)
12—3 heat/2 cool heat pump
(with auxiliary heat)
Fan Operation 0180
0
Heat/Cool
1
Heat pump or electric heat
applications where comfort
control controls fan operation selected. If heat
Only shown if heat/
cool system is
applications where
equipment controls
fan operation in heat
mode.
in heat mode.
pump is chosen, fan
defaults to electric.
Backup Heat 0200
Source
(Auxiliary
0
1
Heat pump backup
heat source is electric.
1
0
Heat pump backup heat
source is fossil fuel.
Only shown if 2 heat/
1 cool or 3 heat/2
cool heat pump is
chosen.
Heat)
External
0210
External fossil fuel kit
is controlling heat
pump backup heat
(recommended)
No external fossil fuel kit is
controlling heat pump backup fuel is chosen as
heat. This comfort control
controls the backup fossil fuel
heat with outdoor sensor.
Only shown if fossil
Fossil Fuel Kit
backup heat source.
Cycles per
hour (cph) for
1st Stage
0220
0230
3
3
Compressor Stage 1 1-6
cycles per hour (cph)
1-6 available;
3 is recommended.
—
Compressor
Cycles per
hour (cph) for
2nd Stage
Compressor Stage 2 1-6
cycles per hour (cph)
1-6 available;
3 is recommended.
Only shown if two
stages of cool are
selected.
Compressor
Pub. No. 18-HD25D19-3
69-1790—3
12
TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
Table 4. Installer Setup Menu. (Continued)
Factory Setting
Other Choices
Installer
Setup
Number Option
Select
Description
Options
Description
Comments
Cycles per
hour (cph) for
1st Stage
Heat
0240
0250
0260
5
5
9
9
Heat Stage 1 cycles 1-12
per hour (cph)
1-12 available; typical settings: Not shown if system
1—1 cph used for steam or
gravity system.
3—3 cph used for 2-stage
selection is heat
pump. Selection in
this stage changes
fossil fuel forced air systems or default cph for 2nd
hot water systems.
stage heat.
5—5 cph used for single-stage
fossil fuel forced air systems.
9—9 cph used for electric
forced air heat systems
(electric auxiliary heat for heat
pump systems).
Cycles per
hour (cph) for
2nd Stage
Heat
Cycles per hour (cph) 1-12
for 2nd Stage Heat or
Auxiliary Heat for
2 H/1C Heat Pump
Systems
1-12 available; typical settings: Only shown if two
1—1 cph used for steam or
gravity system.
stages of heat are
selected.
3—3 cph used for 2-stage
fossil fuel forced air systems or
hot water systems.
5—5 cph used for single-stage
fossil fuel forced air systems.
9—9 cph used for electric
forced air heat systems
(electric auxiliary heat for heat
pump systems).
Cycles per
hour (cph) for
3rd Stage
Heat
Cycles per hour (cph) 1-12
for Auxiliary Heat in
3H/2C Heat Pump
Systems
1-12 available; typical settings: Only shown if 3H/2C
1—1cph used for steam or
gravity system.
heat pump system is
selected.
3—3 cph used for 2-stage
fossil fuel forced air systems or
hot water systems.
5—5 cph used for single-stage
fossil fuel forced air systems.
9—9 cph used for electric
forced air heat systems
(electric auxiliary heat for heat
pump systems).
Cycles per
hour (cph) for
Em Heat
0270
Cycles per hour (cph) 1-12
for Emergency Heat
1-12 is available; typical
settings:
3—3 cph used for 2-stage
Only shown if 2 heat/
1 cool or 3 heat/2
cool heat pump is
fossil fuel forced air systems or selected.
hot water systems.
5—5 cph used for single-stage
fossil fuel forced air systems.
9—9 cph used for electric
forced air heat systems
(electric auxiliary heat for heat
pump systems).
Continuous
Backlight
0280
0
0
Backlight not on
continuously. Comfort
control backlight
comes on with each
key press.
1
1
Backlight is on continuously
(comfort control must have a shown; however,
common wire attached for this continuously on
Option is always
function).
backlight works only if
comfort control is
wired with 24 Vac
Common.
Changeover 0300
Manual changeover
1—auto changeover
—
Pub. No. 18-HD25D19-3
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TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
Table 4. Installer Setup Menu. (Continued)
Factory Setting
Other Choices
Installer
Setup
Number Option
Select
Description
Options
Description
Comments
Deadband
0310
2 thru 9 Heating and cooling
setpoints can be set
no closer than chosen
value:
3
Heating and cooling setpoints Shown only if
can be set no closer than 3°F automatic
(1.5°C).
changeover is
selected.
2—2°F (1°C)
3—3°F (2°C)
4—4°F (2.5°C)
5—5°F (3°C)
The deadband is
restricted to the range
of 5 to 9 if ISU 0380 is
set to
6—6°F (3.5°C)
7—7°F (4°C)
dehumidification
droop control.
8—8°F (4.5°C)
9—9°F (5°C)
Temperature 0320
Indication
Scale
0
1
Temperature is
displayed in °F.
1
Temperature is displayed in °C.
—
Daylight
Savings
0330
Daylight savings
enabled (use through
2006 and for areas
that do not use the
new 2007 DST
0, 2
0—daylight savings is
disabled.
2—daylight savings is enabled savings.
(start using in 2007, for areas
that use the new 2007 DST
calendar).
Set to 0 in areas that
do not follow daylight
calendar).
Remote
Temperature
Sensor
(Outdoor or
Indoor)
0340
0
No remote
temperature sensor
1-3
1—outdoor temperature
sensor for display only.
2—outdoor temperature
sensor for system control,
used for select heat pump
systems. (See Special Heat
Pump Features section for
more details.)
Defaults and Options
depend on System
Type selection.
Indoor Temperature
Sensor uses an
averaging network
and does not include
on-board sensor.
3—indoor temperature sensor
Heat Pump
Compressor
Lockout
0350
0
0
No compressor
lockout.
15, 20, 15°F (-9.5°C)
25, 30, 20°F (-6.5°C)
35, 40, 25°F (-4°C)
Default depends on
other selections.
Shown if Outdoor
Temperature for
45
30°F (-1°C)
35°F (1.5°C)
40°F (4.5°C)
45°F (7°C)
control is selected.
Heat Pump
Auxiliary
Lockout
0360
0380
No heat pump
auxiliary lockout.
40, 45, 40°F (4.5°C)
50, 55, 45°F (7°C)
Shown if electric is
chosen for backup
heat source and
outdoor temperature
sensor for control is
selected.
60
50°F (10°C)
55°F (13°C)
60°F (15.5°C
Indoor
Dehumidifica-
tion Control
0
0
No indoor
dehumidification
control.
1
1—dehumidification droop
control.
Available on models
with humidity sensor.
Furnace Filter 0500
Change
Reminder
Furnace filter change 1-6
reminder off.
1—10 run time days
2—30 run time days
3—60 run time days
4—90 run time days
5—120 run time days
6—365 run time days
Run time based on
call for fan.
Humidifier
Pad
Replacement
Reminder
0510
0
Humidifier pad
replacement reminder
off.
1-3
1—90 calendar days
2—180 calendar days
3—365 calendar days
—
Pub. No. 18-HD25D19-3
69-1790—3
14
TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
Table 4. Installer Setup Menu. (Continued)
Factory Setting
Other Choices
Installer
Setup
Number Option
Select
Adaptive
Intelligent
Description
Options
Description
Comments
0530
1
Adaptive Intelligent
Recovery™ control is
activated (system
0
0—conventional recovery
(system starts recovery at
programmed time)
—
Recovery™
starts early so setpoint
is reached by start of
program period).
Number of
Periods
0540
4
Four periods available 2
(Wake, Leave, Return,
Sleep)
Two periods available (Wake Not shown if
and Sleep) non-programmable is
selected. 2 or 4
applies to all days of
the week.
Minimum
Compressor
Off Time
0580
0600
0610
5
Five minute minimum 0, 2, 3, Minimum number of minutes Five minutes
off time for
compressor.
4
compressor is off between
calls for compressor.
recommended
Heat
Temperature
Range Stop
90
50
Highest heating
setpoint.
40 to 89 Temperature range (1°F
increments) of heating
setpoint.
Shown in 1/2 °C.
Cool
Temperature
Range Stop
Lowest cooling
setpoint.
51 to 99 Temperature range (1°F
increments) of cooling
setpoint.
Shown in 1/2 °C.
—
Clock Format 0640
12
0
12-hour clock format 24
24-hour clock format
Extended Fan 0650
on time Heat
No extended fan
operation after call for
heat ends.
90
Fan operation is extended 90 Not shown if fan
seconds after call for heat
ends.
operation is set to
fossil fuel or in Cool
Only Systems
Extended Fan 0660
on time Cool
0
0
No extended fan
operation after call for
cool ends.
90
Fan operation is extended 90 Not shown in Heat
seconds after call for cool
ends.
Only Systems.
Keypad
Lockout
0670
Unlocked keypad
1, 2
1—partially locked keypad
2—fully locked keypad
Unlocked—all
functions are
available.
Partially locked—only
temperature up and
down keys and ability
to enter and modify
Installer Setup mode
are available. Fully
locked—only ability to
enter and modify
Installer Setup mode
are available.
Pub. No. 18-HD25D19-3
69-1790—3
15
TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
Table 4. Installer Setup Menu. (Continued)
Factory Setting
Other Choices
Installer
Setup
Number Option
Select
Description
Options
Description
Comments
Temperature 0680
Control in
Heat
2
Standard temperature 1, 3
control in heating.
1—less aggressive
temperature control (could
cause temperature
undershoot)
Applies to recovery
ramp and use of
auxiliary heat during
recovery.
3—more aggressive
temperature control (could
Choose 1 if getting
temperature
cause temperature overshoot) overshoot.
Choose 3 if getting
temperature
undershoot.
Temperature 0690
Control in
Cool
2
Standard temperature 1, 3
control in cooling.
1—less aggressive
temperature control (could
cause temperature
undershoot)
Applies to recovery
ramp.
Choose 1 if getting
temperature
3—more aggressive
temperature control (could
overshoot.
Choose 3 if getting
cause temperature overshoot) temperature
undershoot.
Temperature 0700
Display Offset
0
0
No difference in
displayed temperature -1, 0, 1, -2°F (-1°C)
and actual room
temperature.
-3, -2, -3°F (-1.5°C)
—
2, 3
-1°F (-0.5°C)
0°F (0°C)
1°F (0.5°C)
2°F (1°C)
3°F (1.5°C)
ResetComfort 0710
Control
No comfort control
reset.
1
Resets all Installer Setup
Options to default values and settings and time are
Only calendar
resets schedule to default
setting.
retained.
Pub. No. 18-HD25D19-3
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16
TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
SYSTEM CHECKOUT
Installer System Test
CAUTION
Minimum compressor off-time is bypassed
during Installer System Test.
The Installer System Test mode is used to test the HVAC
system(s). See Table 5. While in System Test mode,
minimum off-time for compressors is bypassed.
Equipment Damage Hazard.
The Installer Test is part of the Installer Setup options.
Enter Installer Setup screen and press the Down arrow
key to bring up test selection(s) quickly.
Avoid cycling compressor quickly.
Table 5. System Test(s).
Factory Setting Other Choices
Description
Installer
Setup
Number Options
Select
Description
Options
Comments
Installer
Test Cool
Test 1
0
Cool is off
1,2
0—cool off
1—cool stage 1 turns on
System selection
determines which
2—cool stages 1 and 2 on tests are available
and the number of
stages shown.
Installer
Test Fan
Test 2
Test 3
0
0
Fan is off
Heat is off
1
0—fan off
1—fan turns on
—
—
Installer
1-3
0—heat off
Test Heat
1—stage 1 heat on
2—stages 1 and 2 heat on
3—stages 1, 2 and 3 (Aux
Ht) on
Installer
Test Em
Ht
Test 4
0
Emergency
heat is off
1
0—emergency heat off
1—emergency heat on
2—emergency heat and
auxiliary heat turn on
Available only if
heat pump with
auxiliary heat is
selected.
Pub. No. 18-HD25D19-3
69-1790—3
17
TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
ADVANCED FEATURES
3. Choose Outdoor Temperature Sensor for
Control Option in Installer Setup Number 0340.
4. Choose Compressor Lockout Temperature in
Installer Setup Number 0350.
5. Choose Auxiliary Lockout Temperature in
Outdoor or Indoor Temperature Sensor
For accuracy, the initial reading of the indoor and outdoor
temperature sensors require five minutes to stabilize. See
the Sensor instructions for installation information.
Installer Setup Number 0360.
Special Heat Pump Features
NOTE: There is a 5°F deadband between the Compres-
sor and Auxiliary Heat Lockout Temperatures
Heat Pump with Fossil Fuel Auxiliary Heat (Dual
Fuel) and Outdoor Temperature Sensor
In this operation there is no external fossil fuel kit (dual
OPERATION IN HEAT MODE
When the outdoor temperature is below the Compressor
Lockout Temperature, only the Auxiliary Heat operates.
fuel kit) installed; the comfort control controls this function.
When the outdoor temperature is above the Auxiliary
1. Choose correct heat pump application in Installer
Lockout Temperature, only the Compressor operates.
Setup Number 0170.
See Fig. 21.
2. Choose Fossil Fuel Option as the backup heat
source in Installer Setup Number 0200.
3. Choose No External Fossil Fuel Kit Option as
controlling backup heat in installer Setup Number
0210.
COMPRESSOR ONLY
AUXILIARY
4. Outdoor Temperature Sensor for Control Option
is automatically chosen in Installer Setup Number
0340.
5. Choose appropriate Balance Point Temperature
in Installer Setup Number 0350.
50
35
LOCKOUT
TEMPERATURE
BOTH COMPRESSOR AND
AUXILIARY HEAT
COMPRESSOR
LOCKOUT
TEMPERATURE
AUXILIARY ONLY
OPERATION IN HEAT MODE ABOVE BALANCE POINT
(OUTDOOR TEMPERATURE)
M19950
When the outdoor temperature is above the selected
Balance Point Temperature (ISU 0350), only the
compressor operates and the fan (G terminal) energizes
when the comfort control calls for heat.
Fig. 21. Heat Pump Operation with Lockout
Temperatures Set.
When the outdoor temperature is between the two
temperatures, both the Compressor and Auxiliary Heat
operate.
OPERATION IN HEAT MODE BELOW BALANCE POINT
(OUTDOOR TEMPERATURE)
When the outdoor temperature is below the selected
Balance Point Temperature (ISU 0350), only the Fossil
Fuel (auxiliary heat) operates and the fan (G terminal)
does not energize when the comfort control calls for heat.
OPERATION IN THE EMERGENCY HEAT MODE
Once the comfort control is placed into the Emergency
Heat mode, the compressor and auxiliary lockout features
are turned off. In the Emergency heat mode, the
compressor is locked out. The first stage of heat is
whatever is connected to the X2 terminal. The second
stage of heat is connected to the W1 terminal. Usually the
emergency and auxiliary heat sources are electric strip
heat in these cases.
OPERATION IN EMERGENCY HEAT MODE
The balance point (outside) temperature is not used in the
Emergency heat mode. When the comfort control is
moved to the Emergency Heat position, the compressor is
locked out. The first stage of heat is whatever is
connected to the X2 terminal. The second stage of heat is
what is connected to the W1 terminal. Often there is only
one source of non-compressor heat and the X2 terminal is
jumpered to the W1 terminal.
Dehumidification Droop Control
The dehumidification control attempts to control to the
user's humidity setpoint by turning on the air conditioner.
In extremely high humidity conditions, the comfort control
°
keeps the air conditioner running for up to 3 F below the
Heat Pump with Electric Auxiliary (Backup) Heat
and Outdoor Temperature Sensor
1. Choose correct heat pump application in Installer
Setup Number 0170.
temperature setpoint. It does this while trying to achieve
the desired humidity setpoint and balancing that with the
temperature setpoint.
2. Choose Electric as Auxiliary (Backup) Heat
Source in Installer Setup Number 0200.
Pub. No. 18-HD25D19-3
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18
TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
TROUBLESHOOTING (SEE TABLE 6)
Table 6. Troubleshooting.
Symptom
Possible Cause
Action
Display does not come on.
Comfort control is not being
powered.
Check for 24 Vac between B and Rc.
Temperature settings do not
change.
The upper or lower temperature
limits were reached.
Check temperature setpoints.
Check Installer Setup Numbers 0600 and
0610; modify as needed.
The keypad is fully locked.
Check Installer Setup Number 0670 to
change keypad locked options.
Heating or cooling does not come
on.
Comfort control minimum off-
time is activated.
Wait up to five minutes for the system to
respond.
System selection is not set to
Heat or Cool.
Set system Selection to correct position.
System type Selection is
incorrect.
Check Installer Setup Number 0170 and
make sure correct System type is
chosen.
Comfort control is calling for Heat
(Heat on) or Cool (Cool on) but no
heating or cooling is running.
Heating or cooling equipment is
not operating.
Check wiring.
Check Installer Setup Number 0170 and
make sure correct system type is chosen.
Verify operation of equipment in System
Test mode.
Comfort control does not respond
when touch areas are pressed.
The keypad is locked.
Check Installer Setup Number 0670 to
change keypad locked options.
Pub. No. 18-HD25D19-3
69-1790—3
19
TCONT802AS32DA TOUCH SCREEN AND TCONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
® U.S. Registered Trademark
© 2006 American Standard Inc.
All Rights Reserved
American Standard Inc.
Troup Highway
Tyler, TX 75711-9010
Pub. No. 18-HD25D19-3
69-1790—3 M.S. Rev. 01-06
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