American Standard Thermostat ACONT802AS32DA Manual

The American Standard ACONT802AS32DA is a programmable thermostat designed for precise temperature control of HVAC systems. It features a backlit digital display, 7-day programming capability, multiple system modes (Heat, Cool, Auto, Off), fan control, filter change reminder, and compatibility with conventional and heat pump systems. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting to HVAC System 7. Programming Schedule 8. Energy Saving Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Digital display with backlight, Control buttons, System mode selector, Fan control, Program schedule buttons, Battery compartment.

FeatureDescription
Digital DisplayBacklit LCD showing temperature, time, and system status
7-Day ProgrammingAllows different schedules for each day of the week
System ModesHeat, Cool, Auto, Off
Fan ControlAuto or On settings for continuous fan operation
Filter Change ReminderAlerts when filter maintenance is due
Hold/Temporary OverrideManually override programmed temperature temporarily
Battery BackupMaintains settings during power outages
Temperature Range40°F to 99°F (Heat), 50°F to 99°F (Cool)
CompatibilityConventional and heat pump systems (1H/1C)
Power Source24VAC from HVAC system or 2 AA batteries

Installation

Turn off power to HVAC system before installation. Remove old thermostat carefully.

  1. Label wires: Before disconnecting, label each wire with terminal designation.
  2. Mount base plate: Level and secure to wall using provided screws.
  3. Connect wires: Insert labeled wires into corresponding terminals on base plate.
  4. Attach thermostat: Align and snap onto base plate.
  5. Restore power: Turn HVAC system power back on.

WARNING! Electrical shock hazard. Always turn off power at circuit breaker before installation. If unsure, consult a qualified HVAC technician.

First-Time Setup

After installation and power restoration, configure initial settings.

  1. Set time and day: Press SET CLOCK button, use arrows to adjust.
  2. Select system type: In SETUP menu, choose Conventional or Heat Pump.
  3. Configure temperature limits: Set minimum and maximum temperature ranges.
  4. Program schedule: Set up 4 periods per day (Wake, Leave, Return, Sleep).
  5. Install batteries: Insert 2 AA batteries for backup (if not using 24VAC).

CAUTION! Ensure correct wire connections to prevent system damage.

Specifications

Controls and Settings

Front panel buttons: MODE, FAN, HOLD, SET CLOCK, VIEW SCHEDULE, PROGRAM, ARROW buttons.

Display Icons: Heat/Cool indicator, Fan status, Hold icon, Battery low, Filter reminder.

Mode Settings: HEAT (heating only), COOL (cooling only), AUTO (automatic changeover), OFF (system off). Fan Settings: AUTO (fan runs with HVAC), ON (continuous fan). Programming: Access via PROGRAM button, set temperatures for Wake, Leave, Return, Sleep periods. Setup Menu: System type, temperature limits, filter reminder interval, display brightness.

Connecting to HVAC System

Match thermostat terminals to HVAC system wiring.

  1. R (Red): 24VAC power
  2. C (Blue/Black): Common (24VAC return)
  3. W (White): Heat stage 1
  4. Y (Yellow): Cool stage 1
  5. G (Green): Fan control
  6. O/B (Orange): Heat pump reversing valve

Tip: Refer to HVAC system manual for correct terminal designations. Take photo of old thermostat wiring before removal.

Programming Schedule

Create custom temperature schedules for energy savings.

  1. Press PROGRAM button to enter programming mode.
  2. Select day: Use arrows to choose day or copy to other days.
  3. Set periods: Adjust Wake, Leave, Return, Sleep times and temperatures.
  4. Review: Press VIEW SCHEDULE to check programmed settings.
  5. Override temporarily: Press HOLD to maintain current temperature until next period.
  6. Cancel hold: Press HOLD again or wait for next scheduled period.

WARNING! Do not set temperatures too extreme; allow system to maintain comfort efficiently.

Energy Saving Features

Programmable schedules reduce energy use when away. Adaptive Recovery: Gradually adjusts temperature to reach setpoint at scheduled time. Filter Reminder: Prompts for filter changes to maintain system efficiency. Temperature Limits: Prevents extreme settings that waste energy.

Care & Maintenance

Clean with soft, dry cloth only. Do not use liquids or cleaners. Replace batteries annually or when low battery icon appears. Change HVAC filter when reminder appears or per manufacturer recommendations.

CAUTION! Never spray cleaning agents directly on thermostat. Ensure power is off before cleaning.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. UL Listed. Copyright © American Standard. For support, visit www.americanstandard.com or contact 1-800-628-4516.

Troubleshooting

SymptomPossible CauseCorrective Action
Blank displayNo powerCheck circuit breaker; verify 24VAC at R & C; replace batteries.
System not respondingIncorrect wiring/modeVerify wire connections; ensure correct MODE selected (Heat/Cool).
Temperature inaccurateLocation/calibrationRelocate away from heat sources; check calibration in setup.
Fan runs continuouslyFan settingChange FAN setting from ON to AUTO.
Schedule not followingHold active/program errorCancel HOLD; review programmed schedule times.
Low battery iconWeak batteriesReplace both AA batteries.
Filter reminder won't resetReset procedurePress and hold FILTER button for 3 seconds.

Reset: Remove batteries, turn off power for 1 minute, restore to factory defaults.

Service: 1-800-628-4516; www.americanstandard.com

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