American Standard ACONT102 User manual
Pub No. 11-HD23D1-1B-EN
Part No. 37-7771002
September 2020
American Standard
Non-Programmable Thermostat
ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
IMPORTANT — This Document is customer property and is to remain with this unit.
These instructions do not cover all variations in systems or provide for every possible contingency to be met in connection
with the installation. Should further information be desired or should particular problems arise which are not covered
ACONT102
Installation and User Guide
Pub. No. 11HD23D1-1B-EN 09/2020 Part No. 37-7771002
2
Installation and User Guide
WARNING
!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS
CAREFULLY BEFORE INSTALLING OR OPERATING THIS
CONTROL COULD CAUSE PERSONAL INJURY AND/OR
PROPERTY DAMAGE.
This information is intended for use by individuals possessing
adequate backgrounds of electrical, mechanical, HVAC and
experience. Any attempt to repair a HVAC system may result
in personal injury and/or property damage. The manufacturer
or seller cannot be responsible for the interpretation of this
information, nor can it assume any liability in connection with its
use.
LIVE ELECTRICAL COMPONENTS!
During installation, testing, servicing, and troubleshooting of
this product, it may be necessary to work with live electrical
components. Failure to follow all electrical safety precautions
when exposed to live electrical components could result in
death or serious injury.
hazard.
Do not short out terminals on gas valve or primary control
to test. Short or incorrect wiring will burn out thermostat
and could cause personal injury and/or property damage.
▲CAUTION
!
To prevent electrical shock and/or equipment damage, disconnect
electric power to system at main fuse or circuit breaker box until
installation is complete.
To prevent compressor and/or property damage, if the outdoor
temperature is below 55°F, DO NOT operate the cooling system. Do
not allow the compressor to run unless the compressor oil heaters
have been operational for six hours and the system has not been
ATTENTION: MERCURY NOTICE
This product does not contain mercury. However, this product may
replace a product that contains mercury.
Mercury and products containing mercury must not be discarded in
household trash. Do not touch any spilled mercury. Wearing non-
absorbent gloves, clean up any spilled mercury and place in a sealed
container. For proper disposal of a product containing mercury or a
sealed container of spilled mercury, place it in a suitable shipping
container. Refer to www.thermostat-recycle.org for location to send
the product containing mercury.
Contents
1. Safety
1. Safety................................................................................ 2
2. ProductSpecications ................................................... 3
3. GeneralInformation ........................................................ 3
3.1 Overview .............................................................. 3
3.2 Contents............................................................... 3
4. Installation ....................................................................... 3
4.1 Location ............................................................... 3
Figure1:Placement
4.2 Mounting/Installation .......................................... 4
4.3 BatteryReplacement........................................... 4
4.4 WiringDiagrams.................................................. 5
CoolingwithTAM7/TAM9(24VMode) 5
CoolingwithGAF2-S 5
CoolingwithS9V2Furnace 6
Heat/CoolPackagewithVariableSpeedBlower 6
Heat/CoolPackage 7
CoolingwithTEM6VSGasFurnace 7
CoolingwithGAT2,GAM2&TEM3,4 8
5. ThermostatOverview
5.1 ThermostatOperation......................................... 9
Thethermostatbuttonsandswitches 9
Thedisplay 9
5.2 OperatingFeatures ........................................... 10
6. Troubleshooting .............................................................11
Pub. No. 11HD23D1-1B-EN 09/2020 Part No. 37-7771002 3
American Standard 102 Non-Programmable Thermostat
3. General Information
3.1 Overview
Contents
4. Installation
4.1 Location
The 102 is designed for installation in climate controlled living
spaces. Place the unit in a central location with good circulation.
For proper temperature sensing, avoid exposing the 102 to heat
source.
Avoid locations close to windows, behind doors or alcoves with
poor air circulation, adjoining outside walls, or doors that lead to
the outside.
Select a location that prevents the 102 from being directly exposed
to air currents from supply registers or ceiling fans.
Mount the Control on a section of interior wall that does not
contain hot or cold water pipes or duct work.
SPECIFICATION DESCRIPTION
Product Models ACONT102
Product 102
Size 3-7/8” x 5-1/2” x 1-3/16” (HxWxD)
Heat / Cool
Maximum Number of Stages 1H, 1C
Operating Temperature
Shipping Temperature Range
Input Power (DC) Two 1.5V AAA Alkaline
Input Power (AC) 20 - 30 VAC, NEC Class ll, 50/60 HZ
Wire Usage 18 AWG
System Modes Heating, Cooling, Off
Fan Modes Auto, On
Cooling Setpoint Temperature Range
Heating Setpoint Temperature Range
Temperature Display Range
Minimum Cycle Off Time Delay Compressor: 5 minutes, Indoor Heat; none
Terminal Load 1.0A per terminal, 1.5A maximum all terminals combined
Operating Ambient
Shipping Temperature Range
THERMOSTAT APPLICATION GUIDE
ThermostatApplications MaximumStagesHeat/Cool
1/1
2. Product Specications
3.1 Overview
The 102 is a non-programmable 1H/1C thermostat with a 2”
digital display.
3.2 Contents
— 1-Thermostat
— 2-Phillips slotted head mounting screws
— 2-Nylon Drywall Anchors
— 1-Installation Guide / User Guide
Pub. No. 11HD23D1-1B-EN 09/2020 Part No. 37-7771002
Installation and User Guide
FIGURE 1. PLACEMENT OF THE 102
Incorrect
Placement
Ceiling Fan
Natural heat
dissipation
from the
thermostat
Onboard
Thermistor
5 FEET
Optimum
Zone
2 FEET
Correct
Placement
Heat from the screen may be trapped
within the body of the Control by an
external top-down airflow source, such
as a ceiling fan.
The onboard thermistor may be biased
by this heat causing the displayed
indoor temperature to be elevated.
4.2 Mounting / Installation
Follow these steps to mount the 102 Control to the wall.
1. Turn OFF all power to heating and cooling equipment.
2. If an existing thermostat is being replaced:
a. Record color and terminal marking of each wire.
b. Disconnect the wires from the existing thermostat
being careful not to allow them to fall back into the wall.
c. Remove the existing thermostat from the wall.
3. Pull the cover off the thermostat body. Forcing or prying on
the thermostat will cause damage to the unit.
4. Move thermostat body over hole in wall and mark mounting
hole locations on wall using base as template. (See Fig. 1)
5. Move base out of the way. Drill mounting holes. If you are
using existing mounting holes pull thermostat wire bundle
through the hole in the thermostat base. Mount sub-base
to wall. Leveling is for appearance only and will not affect
thermostat operation.
6. Connect wires to terminal block on base using appropriate
wiring diagram.
7.
from affecting thermostat operation.
8. Two “AAA” alkaline batteries are included in the thermostat
at the factory with a battery tag to prevent power drainage.
9. Remove the battery tag to engage the batteries
To replace batteries, set system to OFF, remove thermostat cover from wall and install
the batteries in the bottom of the thermostat. For best results, use a premium brand
“AAA” alkaline battery. If the home is going to be unoccupied for an extended period
(over 3 months) and “ ” is displayed the batteries should be replaced before
leaving.
IMPORTANT:
•
• All wiring must conform to local and national electrical codes and ordinances.
• This control is a precision instrument, and should be handled carefully. Rough handling or distorting components could cause the
control to malfunction
4.3 Battery Replacement
Mounting Hole
Mounting Hole
Battery Location
CAUTION
!
To prevent compressor and/or property damage, if the outdoor temperature is below 55°F,
DO NOT operate the cooling system.
Do not allow the compressor to run unless the compressor oil heaters have been operational
for 6 hours and the system has not been operational for at least 5 minutes.
Electric/Gas Switch
THERMOSTAT FURNACE/AIR HANDLER
TYPICAL TERMINAL DESIGNATIONS
RH
RC
W
G
Y
O
B
R-RH
4-M-R5
R-RC-V
W-H-4
G-F
Y-Y6
O
B
REMOVE JUMPER
FOR 2
TRANSFORMER
RC/RH SYSTEMS
ADD JUMPER
FOR HEAT PUMP
APPLICATIONS
24V POWER (HEATING)
24V POWER (COOLING)
HEATING RELAY
FAN RELAY
REVERSING VALVE
REVERSING VALVE
COOLING RELAY
ONLY REQUIRED FOR HEAT PUMP APPLICAITO
N
REVERSING VALVE ENERGIZED IN COOL MODE
ONLY REQUIRED FOR HEAT PUMP APPLICAITO
N
REVERSING VALVE ENERGIZED IN HEAT MODE
CAUTION
!
• Replace batteries when “Change ” is displayed.
• “Change ” indicates batteries have limited
remaining life.
• System will not operate with dead batteries.
NOTICE! FREEZE HAZARD
1 Does not support auxiliary heat 2
heating cycle which is normally for hot
water or steam (hydronic systems)
1
1
2
Pub. No. 11HD23D1-1B-EN 09/2020 Part No. 37-7771002 5
American Standard 102 Non-Programmable Thermostat
4.3 Wiring Diagrams
NOTES:
1) Wire third party condensate overow
switches between Y of the thermostat
and Y1 of the airow control board
2) X2 is required to energize aux heat
during defrost
Cooling with TAM7/TAM9 (24V Mode)
Indoor Unit Outdoor UnitThermostat
Rc
Rh
O
Y
G
W
R
G
W1
BB
Y0 Y
Y1
O
B
NOTES:
1) Wire third party condensate overow
switches between Y of the thermostat
and Y1 of the airow control board
2) X2 is required to energize aux heat
during defrost
Cooling with GAF2-S
Indoor Unit Outdoor UnitThermostat
Rc
Rh
Y
G
W
R
G
W1
BB
Y
O
B
4.4 Wiring Diagrams
Pub. No. 11HD23D1-1B-EN 09/2020 Part No. 37-7771002
6
Installation and User Guide
NOTES:
1) Wire third party condensate overow
switches between Y of the thermostat
and Y1 of the airow control board
2) X2 is required to energize aux heat
during defrost
Heat Cool Package with Variable Speed Blower
Thermostat
Rc
Rh
Y
G
W
R
G
W1
B
Y1
O
B
NOTES:
1) Wire third party condensate overow
switches between Y of the thermostat
and Y1 of the airow control board
2) X2 is required to energize aux heat
during defrost
Cooling with S9V2 Furnace
Indoor Unit Outdoor UnitThermostat
Rc
Rh
Y
G
W
R
G
W1
BB
Y
Y1
O
B
Pub. No. 11HD23D1-1B-EN 09/2020 Part No. 37-7771002 7
American Standard 102 Non-Programmable Thermostat
NOTES:
1) Wire third party condensate overow
switches between Y of the thermostat
and Y1 of the airow control board
2) X2 is required to energize aux heat
during defrost
Heat/Cool Package
Thermostat
Rc
Rh
Y
G
W
R
G
W1
B
Y1
O
B
NOTES:
1) Wire third party condensate overow
switches between Y of the thermostat
and Y1 of the airow control board
2) X2 is required to energize aux heat
during defrost
Cooling with TEM6 or Variable Speed Gas Furnace
Indoor Unit Outdoor UnitThermostat
Rc
Rh
Y
G
W
R
G
W1
BB
Y
Y
O
B
Pub. No. 11HD23D1-1B-EN 09/2020 Part No. 37-7771002
8
Installation and User Guide
NOTES:
1) Wire third party condensate overow
switches between Y of the thermostat
and Y1 of the airow control board
2) X2 is required to energize aux heat
during defrost
Cooling with GAT2, GAM2 & TEM3, 4
Indoor Unit Outdoor UnitThermostat
Rc
Rh
Y
G
W
R
G
W1
BB
Y/Y1
O
B
Pub. No. 11HD23D1-1B-EN 09/2020 Part No. 37-7771002
American Standard 102 Non-Programmable Thermostat
5.
Before you begin using your thermostat, you should be familiar with its features, display and the location/operation of the thermostat
buttons and switches.
5. THERMOSTAT OVERVIEW
5.1 THERMOSTAT OPERATION
THE THERMOSTAT BUTTONS AND SWITCHES
1
2
34
Fan
On Auto Cool OffHeat
System
(Up arrow) Raises temperature setting.
(Down arrow) Lowers temperature setting.
FAN switch (ON, AUTO).
SYSTEM switch (COOL, OFF, HEAT).
Whenever appears in the display, new premium brand AAA alkaline batteries should be installed. If the house will be
unoccupied for an extended period and “ is displayed, install new batteries before leaving
THE DISPLAY
is displayed when the SYSTEM switch
is in the HEAT position.
SYSTEM switch is in the COOL position.
compressor is in lockout mode (5 minute
minimum off time).
Displays current temperature.
is displayed when the 2
“AAA” batteries are low and should be
replaced. Nothing else will be displayed.
Displays currently set temperature (this
is blank when SYSTEM switch is in the
OFF position).
Pub. No. 11HD23D1-1B-EN 09/2020 Part No. 37-7771002
10
Installation and User Guide
5.2 OPERATING FEATURES
Now that you are familiar with the thermostat buttons and display, read the following information to learn about the many features of the
thermostat.
• SIMULTANEOUS HEATING/COOLING SETPOINT STORAGE — You can enter both your heating and cooling setpoints at the
same time. There is no need to re-enter the thermostat at the beginning of each season.
• TEMPERATURE SETTING — Press or until the display shows the temperature you want. The thermostat will keep the
room temperature at the selected temperature.
• °F/°C CONVERTIBILITY
feature to Celsius temperature setting. See diagram on page 11.
• LOW BATTERY INDICATOR — If the 2 “AAA” alkaline batteries are low and should be replaced, the display will be blank except
for . When the batteries are low, pressing any button will cause the display to operate for ten seconds. After ten
seconds, the display will be blank except for . After
raise the temperature 10° above your setpoint in COOL mode and drop the temperature 10° below your setpoint in HEAT mode.
• TEMPERATURE DISPLAY ADJUSTMENT — Your new thermostat has been accurately set in our factory. However, if you wish,
you may adjust your new thermostat temperature display to match your old thermostat. This can be accomplished (within a ±3°
range) as follows:
1. Press or at the same time for two seconds with the SYSTEM switch in OFF position.
2. Press or to adjust the displayed temperature to your desired setting
3. Move SYSTEM switch from OFF to exit the feature
• DISPLAY BACKLIGHT — The display backlight improves display contrast in low lighting conditions. Selecting backlight ON will
turn the light on for a short period of time after any button is pressed. Selecting backlight OFF (default) will keep the light off. Turn
the display backlight feature ON as follows:
1. Press and at the same time for two seconds with the SYSTEM switch in HEAT position. The display will alternately show
“-L” AND “FF” (off).
2. Press or to change “FF” to “ON.”
3. Move SYSTEM switch to OFF to exit the feature.
Pub. No. 11HD23D1-1B-EN 09/2020 Part No. 37-7771002 11
American Standard 102 Non-Programmable Thermostat
6. Troubleshooting
6. TROUBLESHOOTING
ResetOperation
If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation you can reset the thermostat by
pressing and at the same tie while moving the SYSTEM switch from OFF to HEAT. This also resets the factory defaults.
If the thermostat has power, has been reset and still does not function correctly contact your heating/cooling service person or place of
purchase.
Batteries
For best results, replace batteries once a year with new premium brand alkaline battery.
SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION
No Heat/
No Cool/
No Fan
(common problem)
1.) Blown fuse or tripped circuit breaker
2.) Furnace power switch to OFF
3.) Furnace blower compartment door panel
loose or not properly installed
1.) Replace fuse or reset breaker
2.) Turn switch to ON
3.) Replace door panel in proper position to engage safety interlock or door switch
No Cool
1.) System Switch not set to Cool
2.) Loose connection to thermostat or system
3.) Cooling System requires service or
thermostat requires replacement
1.) Set System Switch to Cool and lower setpoint below room temperature.
2.) Verify thermostat and system wires are securely attached.
3.) Same procedures as diagnostic for “No Heat” condition except set the thermostat to Cool
before the thermostat clicks in Cooling.
No Heat
1.) Pilot light not lit
2.) System Switch not set to Heat
3.) Loose connection to thermostat or system
also be intermittent.
5.) Heating System requires service or
thermostat requires replacement
1.) Re-light pilot.
2.) Set System Switch to Heat and raise the setpoint above room temperature.
3:) Verify thermostat and system wires are securely attached.
the heat works intermittently contact the furnace manufacturer or local service person for
assistance.
5:) Diagnostic: Set SYSTEM Switch to HEAT and raise the setpoint above room temperature.
Within a few seconds the thermostat should make a soft click sound. This sound usually
indicates the thermostat is operating properly. If the thermostat does not click, try the reset
operation listed below. If the thermostat does not click after being reset contact your heating and
cooling service person or place of purchase for a replacement. If the thermostat clicks, contact
the furnace manufacturer or a service person to verify the heating is operating correctly.
Heat, Cool or Fan
Runs Constantly
1.) Possible short in wiring.
2.) Possible short in thermostat.
3.) Possible short in heat/cool/fan system.
Check each wire connection to verify they are not shorted or touching together. No bare wire
should stick out from under terminal screws. Try resetting the thermostat as described above.
If the condition persists the manufacturer of your system or service person can instruct you on
how to test the Heat/Cool system for correct operation. If the system operates correctly, replace
the thermostat.
Furnace Cycles Too
Fast or Too Slow
(narrow or wide
temperature swing)
1.) The location of the thermostat and/or the
the cycle rate.
Digital thermostats normally provide precise temperature control and may cycle faster than
some older mechanical models. A faster cycle rate means the unit turns on and off more
frequently but runs for a shorter time so there is no increase in energy use. If you would like to
to shorten the cycle time. If an acceptable cycle rate is not achieved as received or by clipping
Thermostat Display &
Thermometer Disagree
Cooling Cycles Too
Fast or Too Slow
(narrow or wide
temperature swing)
1. The location of the thermostat and the size
cycle rate.
suggestions.
Thermostat Setting and
Thermostat
Thermometer Disagree
1. Thermostat thermometer setting requires
adjustment.
Operation section.
Blank Display and/
Responding
1. Voltage spike or static discharge.
2. Battery change required.
Replace batteries and check heat/cool system for proper operation. If a voltage spike occurs
use the Reset Operation listed above.
Installation and User Guide
About American Standard Heating and Air Conditioning
American Standard has been creating comfortable and affordable living environments for more than a century. For more
information, please visit www.americanstandardair.com.
The manufacturer has a policy of continuous
data improvement and it reserves the right to change design and specifications without notice. We are
committed to using environmentally conscious print practices.
© 2020 American Standard Heating and Air Conditioning
11-HD23D1-1B-EN (
09 Sep 2020)
Supersedes 11-HD23D1-1A-EN (11 Mar 2019)
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