American Standard Thermostat ACONT600AF11MA Manual

The American Standard ACONT600AF11MA is a programmable thermostat designed for residential HVAC systems, offering precise temperature control, energy-saving scheduling, and compatibility with various heating and cooling systems. It features a backlit digital display, intuitive menu navigation, programmable schedules for weekdays and weekends, system mode selection (Heat/Cool/Auto/Off), fan control, filter change reminder, and system diagnostics. 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 Schedules 8. Energy-Saving Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

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

Feature	Description
Digital Display	Backlit LCD showing temperature, time, and system status
Programmable Schedules	4 time periods per day for weekdays and weekends
System Modes	Heat, Cool, Auto, Off
Fan Control	Auto or On continuous operation
Filter Change Reminder	Alerts when filter needs replacement
Hold/Temporary Override	Manual temperature override without affecting schedule
Battery Backup	Maintains settings during power outages
System Diagnostics	Displays error codes for HVAC system issues
Temperature Range	40°F to 99°F (4°C to 37°C)
Compatibility	Works with most 24VAC heating and cooling systems

Installation

Unpack and inspect contents. Ensure power to HVAC system is turned off at circuit breaker.

Remove old thermostat: Turn off power, label wires, remove mounting plate.
Mount new baseplate: Level and secure to wall using provided screws.
Connect wires: Match labeled terminals (R, C, W, Y, G, etc.) to corresponding wires.
Attach thermostat: Align and snap onto baseplate.
Install batteries: Insert 2 AA alkaline batteries for backup power.
Restore power: Turn circuit breaker back on.

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

First-Time Setup

Power on thermostat; follow initial setup prompts.

Set time and day: Use MENU and arrow buttons to set current time and day of week.
Select temperature format: Choose Fahrenheit or Celsius.
Configure system type: Select conventional or heat pump system.
Set program schedule: Use default energy-saving schedule or customize later.
Test system: Run test cycle to ensure proper operation of heating and cooling.

CAUTION! Ensure correct wire connections to prevent system damage.

Specifications

Power Requirements: 24VAC from HVAC system; 2 AA battery backup.
Display: Backlit digital LCD.
Temperature Control: 1°F (0.5°C) increments.
Program Capacity: 4 periods per day, separate weekday/weekend schedules.
Compatibility: Single-stage and multi-stage conventional systems; heat pumps with auxiliary heat.
Operating Temperature: 32°F to 122°F (0°C to 50°C).
Humidity Range: 0% to 90% RH non-condensing.
Warranty: 5-year limited warranty.

Controls and Settings

Access menu by pressing MENU button. Navigation: UP/DOWN arrows, SELECT button.

Front Panel: MENU, UP/DOWN, SELECT, SYSTEM (Heat/Cool/Auto/Off), FAN (Auto/On), HOLD.

Settings Menu: Time/Day, Temperature Format, System Type, Program Schedule, Filter Timer, System Test, Factory Reset. Program Schedule: Set temperatures for Wake, Leave, Return, Sleep periods. Filter Reminder: Set interval (30-365 days) for filter change alerts. System Test: Runs heating and cooling cycles to verify operation.

Connecting to HVAC System

Terminals: R (24VAC power), C (Common), W/W1 (Heat), Y/Y1 (Cool), G (Fan), O/B (Heat pump reversing valve), Aux/E (Auxiliary heat).

Turn off HVAC system power at circuit breaker.
Label existing thermostat wires before disconnecting.
Match wires to corresponding terminals on thermostat baseplate.
For heat pump systems, configure O/B reversing valve setting in menu.
Secure unused wires to prevent short circuits.

Tip: Take photo of old thermostat wiring before removal for reference.

Programming Schedules

Create custom temperature schedules for energy savings.

Press MENU, select PROGRAM SCHEDULE.
Choose WEEKDAY or WEEKEND schedule.
Set temperatures for 4 periods: Wake (6:00 AM), Leave (8:00 AM), Return (6:00 PM), Sleep (10:00 PM).
Adjust times and temperatures using arrow buttons.
Press SELECT to save each period.
Repeat for other days as needed.
Press HOLD for temporary override; resumes schedule next period.

WARNING! Do not set extreme temperatures that could damage HVAC system or cause discomfort.

Energy-Saving Features

Adaptive Recovery: Learns system cycle time to reach set temperature by scheduled time. Temperature Limits: Set minimum and maximum temperature boundaries. Filter Reminder: Reduces energy consumption by ensuring clean filters. Vacation Hold: Set extended away periods with energy-saving temperatures.

Care & Maintenance

Clean display with soft, dry cloth only. Replace batteries annually or when low battery icon appears. Reset filter timer after filter replacement.

CAUTION! Do not use liquid cleaners or abrasives. Keep away from direct sunlight and moisture sources.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. UL Listed: Meets safety standards. Copyright © American Standard; trademarks of American Standard Companies, Inc. For support, visit www.americanstandard.com or contact 1-800-843-0304.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Blank display	Power loss or dead batteries	Check circuit breaker; replace batteries; verify 24VAC at R and C terminals.
System not responding	Incorrect wiring or settings	Verify wire connections; check system mode setting; run system test.
Inaccurate temperature	Location or calibration	Relocate away from heat sources; access calibration offset in menu.
Short cycling	Settings or system issue	Adjust temperature differential; check for dirty filters or blocked vents.
Error codes displayed	System fault	Note code and consult HVAC technician; common codes: E1 (sensor), E2 (communication).

Reset: Menu > Settings > Factory Reset to restore defaults.

Service: 1-800-843-0304; www.americanstandard.com