American Standard ACONT802AS32DA User manual

INSTALLATION INSTRUCTIONS
69-1788-03
This thermostat contains a Lithium battery which
may contain Perchlorate material. Due to State Law
in California, the following statement is required:
Perchlorate Material—special handling may apply,
See www.dtsc.ca.gov/hazardouswaste/perchlorate
ACONT802AS32DA Touch Screen and
ACONT803AS32DA Touch Screen with
Dehumidification Control Comfort Controls
11-HD02D9-3
APPLICATION
The ACONT802AS32DA and ACONT803AS32DA Touch Screen Comfort Controls provide electronic control of 24 Vac
heating and cooling systems. See Table 1 for a general description.
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.
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.
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.
Fig. 1. Selecting comfort control location.
Table 1. ACONT802AS32DA and ACONT803AS32DA Comfort Control Description.
Power Method Changeover System Selection Fan Selection Comments
24 Vac common
wire
Automatic or
manual selectable
Heat-Off-Cool-Auto
(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.
5 FEET
[1.5 METERS]
YES NO
NO
NO
M19925

ACONT802AS32DA TOUCH SCREEN AND ACONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
69-1788—03 2
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.
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.
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.
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.
Fig. 3. Selecting terminal identifications for
system type.
NOTE: The factory default setting is configured for a
1 Heat/1 Cool System with a gas furnace.
Fig. 4. Inserting wires in terminal block.
IMPORTANT
Use 18 gauge comfort control wire.
WALL
MOUNTING
HOLES
M19916
MOUNTING
SCREWS (2)
WALL ANCHORS (2)
WIRES THROUGH WALL
AND WIRE SLOT
Table 2. Selecting Terminal Identifications for
System Type.
System Type
Wallplate
Terminal
Identifications
Wiring
Diagram
Reference
Standard Heat/Cool Heat/Cool Fig. 5,
Fig. 6
Standard Multistage
up to 2 Heat/2 Cool
Heat/Cool Fig. 7,
Fig. 8
Heat Pump with
Electric Auxiliary
(Backup) Heat
Heat Pump Fig. 9,
Fig. 10,
Fig. 11
Heat Pump with
Fossil Fuel Auxiliary
(Dual Fuel) Heat
Heat Pump Fig. 12,
Fig. 13,
Fig. 14,
Fig. 15
HEAT
/COOL
SC
REW TERMINAL
S
HEAT P
U
M
P
M22636
Y2
F
X2
W1
S1
S2
Y2
W2
S1
S2
RC
R
O
Y
G
B
R
C
R
W1
Y
G
B
M19917

ACONT802AS32DA TOUCH SCREEN AND ACONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
3 69-1788—03
Fig. 5. Typical hookup of single-stage heat and cool
system with single transformer (1H/1C).
Fig. 6. Typical hookup of single-stage heat and cool
system with two transformers (1H/1C).
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. 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).
1
M22637
FACTORY INSTALLED JUMPER.
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE
ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE
FROM THE THERMOSTAT CABLE.
1
2
2
RC
S1
R
S2
W1
Y
G
B
HEAT/COOL
T
B/C
W3
W2
W1
GYR AIR
HANDLER
YB
COOLING UNIT
O.D. SECTION
(SINGLE STAGE)
TO POWER SUPPLY
PER LOCAL CODES
(3 PH
ONLY)
INDOOR
OUTDOOR
ODT
Y2
W2
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE
ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE
FROM THE THERMOSTAT CABLE.
1
1
RC
S1
R
S2
W1
Y
G
B
HEAT/COOL
T
B/C
W
T
T
GYR OIL
FURNACE
YB
COOLING UNIT
O.D. SECTION
(SINGLE STAGE)
TO POWER SUPPLY
PER LOCAL CODES
(3 PH
ONLY)
M22638
OIL BURNER PRIMARY
INDOOR
OUTDOOR
Y2
W2
1
M22640
FACTORY INSTALLED JUMPER.
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE
ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE
FROM THE THERMOSTAT CABLE.
1
2
2
RC
S1
R
S2
W1
Y
G
B
HEAT/COOL
T
B/C
G
Y
Y
LO BKRVARIABLE SPEED
TWO-STAGE
FURNACE/VARIABLE
SPEED AIR HANDLER
B
COOLING UNIT
O.D. SECTION
(TWO STAGE)
TO POWER SUPPLY
PER LOCAL CODES
(3 PH
ONLY)
INDOOR
OUTDOOR
W2
Y2
O
Y2
W1
Y1
W2
1
M24231
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”.
1
2
2
RC
S1
R
S2
W1
Y
G
B
HEAT/COOL
T
B/C
G
Y
YLO
BKR VARIABLE SPEED
TWO STAGE
FURNACE
B
16 SEER
COOLING UNIT
O.D. SECTION
(TWO STEP)
TO POWER SUPPLY
PER LOCAL CODES
(3 PH
ONLY)
INDOOR
OUTDOOR
W2
Y2
O
Y2
W1
Y1
W2
3
3

ACONT802AS32DA TOUCH SCREEN AND ACONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
69-1788—03 4
Fig. 9. Typical hookup of single-stage heat pump with auxiliary/backup heat (2H/1C heat pump).
Fig. 10. Typical hookup of multistage heat pump with auxiliary/backup heat (3H/2C heat pump).
PM-A
1
M22641
FACTORY INSTALLED JUMPER.
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE
ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE
FROM THE THERMOSTAT CABLE.
1
2
2
RC
S1
R
S2
O
Y
G
B
HEAT PUMP
T
T
B/C
W2
W1
GYR AIR
HANDLER
YB
HEAT PUMP
O.D. SECTION
(SINGLE STAGE)
TO POWER SUPPLY
PER LOCAL CODES
(3 PH
ONLY)
INDOOR
OUTDOOR
W1
Y2
F
X2
O
RO
W3
TO POWER
SUPPLY PER
LOCAL
CODES AND
AS DEFINED
IN FIELD
WIRING TABLE
SUPPL. HTR.
CONTROL BOX
I-PF
REQ.
FOR
3 PH
ODT-1
ODT-2
BR(T)X2/BK
PM-A
1
M22642
FACTORY INSTALLED JUMPER.
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS.
WIRES MUST HAVE A CABLE SEPARATE FROM THE THERMOSTAT CABLE.
1
2
2
RC
S1
R
S2
O
Y
G
B
HEAT PUMP
T
T
B/C
W1
G
OYR VARIABLE
SPEED AIR
HANDLER
B
TO POWER SUPPLY
PER LOCAL CODES
(3 PH
ONLY)
INDOOR
OUTDOOR
W1
Y2
F
X2
YLO
RX2/BK
ODT-1
ODT-2
F
BR(T)
W2
TO POWER
SUPPLY PER
LOCAL
CODES AND
AS DEFINED
IN FIELD
WIRING TABLE
SUPPL. HTR.
CONTROL BOX
I-PF
REQ.
FOR
3 PH
W3
Y2 O
HEAT PUMP
O.D. SECTION
(TWO STAGE)
BK
Y1

ACONT802AS32DA TOUCH SCREEN AND ACONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
5 69-1788—03
Fig. 11. Typical hookup of multistage two-step scroll heat pump with auxiliary/backup heat (3H/2C heat pump).
Fig. 12. Typical hookup of singe-stage heat pump with non-variable speed gas furnace.
1
M24230
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”.
1
2
2
RC
S1
R
S2
O
Y
G
B
HEAT
PUMP
T
B/C
G Y
Y
LO
BKR VARIABLE SPEED
AIR HANDLER
B
16 SEER
HEAT PUMP
O.D. SECTION
(TWO STEP)
TO POWER SUPPLY
PER LOCAL CODES
(3 PH
ONLY)
INDOOR
OUTDOOR
W1
Y2
F
X2
O
Y2
W1
Y1
W2
R O BR(T)
X2/BK
3
3
W1 W2
GYB/C
R
T
1
1
2
FACTORY INSTALLED JUMPER.
OUTDOOR REMOTE SENSOR. WIRES MUST HAVE A
CABLE SEPARATE FROM THE THERMOSTAT CABLE.
Y
R O BR(T)X2/BK BHEAT PUMP
O.D. SECTION
(SINGLE STAGE)
2
NON-V.S.
ONE OR TWO
STAGE GAS
FURNACE
INDOOR
OUTDOOR
HEAT PUMP
RC
R
O
Y
G
B
Y2
F
X2
W1
S1
S2
TO POWER SUPPLY
PER LOCAL CODES
(3 PH
ONLY)
M24200

ACONT802AS32DA TOUCH SCREEN AND ACONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
69-1788—03 6
Fig. 13. Typical hookup of single-stage heat pump with two-stage variable speed gas furnace
(2H/1C heat pump).
W1 W2
GY B/C R
T
1
1
2
FACTORY INSTALLED JUMPER.
OUTDOOR REMOTE SENSOR. WIRES MUST HAVE A
CABLE SEPARATE FROM THE THERMOSTAT CABLE.
Y
R O BR(T)BR/X2
OR BK
BHEAT PUMP
O.D. SECTION
(SINGLE STAGE)
2
VARIABLE
SPEED
TWO STAGE
FURNACE
INDOOR
OUTDOOR
HEAT PUMP
RC
R
O
Y
G
B
Y2
F
X2
W1
S1
S2
TO POWER SUPPLY
PER LOCAL CODES
(3 PH
ONLY)
M24201
1
BK OYLO

ACONT802AS32DA TOUCH SCREEN AND ACONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
7 69-1788—03
Fig. 14. Typical hookup of multistage heat pump with two-stage variable speed gas furnace (3H/2C heat pump).
W1 W2
GY/Y2B/C R
T
1
1
2
FACTORY INSTALLED JUMPER.
OUTDOOR REMOTE SENSOR. WIRES MUST HAVE A
CABLE SEPARATE FROM THE THERMOSTAT CABLE.
Y2
R O BR(T)X2/BK B
FHEAT PUMP
O.D. SECTION
(TWO STAGE)
Y1
2
VARIABLE
SPEED
TWO STAGE
FURNACE
INDOOR
OUTDOOR
HEAT PUMP
RC
R
O
Y
G
B
Y2
F
X2
W1
S1
S2
TO POWER SUPPLY
PER LOCAL CODES
(3 PH
ONLY)
M24202
1
BK OYLO
Y1/

ACONT802AS32DA TOUCH SCREEN AND ACONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
69-1788—03 8
Fig. 15. Typical hookup of multistage two-step scroll heat pump with two-stage variable speed gas furnace
(3H/2C heat pump).
Powering the Comfort Control
The comfort control can be powered with 24 Vac.
24 Vac Common Power (Recommended)
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.
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
shutting down due to lack of battery power, it is not
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.
Fig. 16. Installing batteries on comfort control back.
W1 W2
GYB/C R
T
1
1
2
3
FACTORY INSTALLED JUMPER.
OUTDOOR REMOTE SENSOR. WIRES MUST HAVE A
CABLE SEPARATE FROM THE THERMOSTAT CABLE.
Y2
R O BR(T)X2/BK B16 SEER
HEAT PUMP
O.D. SECTION
(TWO STEP)
Y1
2
VARIABLE
SPEED
TWO STAGE
FURNACE
INDOOR
OUTDOOR
HEAT PUMP
RC
R
O
Y
G
B
Y2
F
X2
W1
S1
S2
TO POWER SUPPLY
PER LOCAL CODES
(3 PH
ONLY)
M24203
1
3
BK OY
LO
REMOVE / CUT JUMPER FROM R TO BK.
M19918
BATTERIES (3)

ACONT802AS32DA TOUCH SCREEN AND ACONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
9 69-1788—03
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.
See Fig. 17.
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.
Fig. 18. Removing tab to activate real-time clock.
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
calendar date to be entered. See Fig. 19.
Fig. 19. Setting calendar and time after initial
powerup.
IMPORTANT
The tab on the back of the comfort control in the
lower left corner must be removed for this
feature to be active.
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.
1. Use the arrow keys to set the Year, Month and Day,
as shown in Fig. 19.
2. Press the Done key.
3. Use the arrow keys to set the current time. See
Fig. 19.
4. Press the Done key.
WALL
M22643
REMOVE DURING
INSTALLATION
REMOVE DURING
INSTALLATION
M22644
REMOVE TAB TO ACTIVATE REAL TIME CLOCK
REMOVE DURING
INSTALLATION
D
O
N
E
MON
T
UE
WED
THU
FRI
SA
T
A
A
T
SUN
D
O
N
E
MON
WED
THU
FRI
SA
T
A
A
T
SUN
CHANGE FILTER UV LAMP HUMIDIFIER PAD
OK TO PICK MULTIPLE DAYS SCREEN LOCKED
SET CURRENT DAY
SET MONTH
US
E ARR
O
W
S
T
O
S
ET YEAR AND TIM
E
M22645
D
RI
W
R
U

ACONT802AS32DA TOUCH SCREEN AND ACONT803AS32DA TOUCH SCREEN WITH DEHUMIDIFICATION
69-1788—03 10
OPERATION
System and Fan Settings
The System default setting is Heat and the Fan default
setting is Auto.
SYSTEM SETTINGS
Heat: controls heating system.
Off: heating and cooling are off.
Cool: controls cooling system.
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.)
FAN SETTINGS
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.
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:
• 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.)
Fig. 20. F terminal switch to R (power) side of system
transformer.
Preprogrammed Settings
Table 3 shows the default program settings. See Owners’
Guide for complete instructions on changing the program.
Table 3. Default Program Settings.
Schedule
Period Time
Setpoints Fan
SettingHeat Cool
Wake 6:00AM 70°F
(21°C)
78°F
(25.5°C)
Auto
Leave 8:00AM 62°F
(16.5°C)
85°F
(29.5°C)
Auto
Return 6:00PM 70°F
(21°C)
78°F
(25.5°C)
Auto
Sleep 10:00PM 62°F
(16.5°C)
82°F
(28°C)
Auto
M22646
EQUIPMENT
MONITOR
FTOR
TO C
C