American Standard Thermostat T010.740 Manual

The American Standard Thermostat T010.740 is a programmable digital thermostat designed for precise temperature control of residential heating and cooling systems. It features a user-friendly interface, 7-day programming capability, large backlit display, system status indicators, and compatibility with most 24VAC HVAC 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 Schedules 8. Energy Saving Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Digital LCD display, Mode buttons, Fan control, Program/Schedule buttons, Temperature adjustment buttons, System status LEDs.

Feature	Description
Digital LCD Display	Large backlit screen showing temperature, time, and system status
7-Day Programming	Allows different schedules for each day of the week
System Mode Selection	Heat, Cool, Auto, and Off modes
Fan Control	Auto and On settings for system fan
Hold/Temporary Override	Manually override programmed temperature temporarily
Filter Change Reminder	Programmable reminder to change HVAC filter
Battery Backup	Maintains settings during power outages (requires 2 AA batteries)
System Status Indicators	LEDs for Heat, Cool, and Fan operation
Keypad Lock	Prevents unauthorized changes to settings
Temperature Display	Shows current room temperature and set point

Installation

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

Remove old thermostat: Turn off power, remove cover, label wires, disconnect from terminals.
Mount new baseplate: Level and secure to wall using provided screws.
Connect wires: Match labeled wires to corresponding terminals (R, W, Y, G, C, etc.).
Attach thermostat: Align and snap onto baseplate.
Restore power: Turn circuit breaker 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, follow initial setup procedure.

Set time and day: Press SET CLOCK button, use arrows to adjust.
Select temperature format: Choose between Fahrenheit (°F) or Celsius (°C).
Configure system type: Set for conventional or heat pump system in installer settings.
Program schedule: Use PROGRAM button to set up daily temperature schedules.
Install batteries: Insert 2 AA batteries for memory backup.

CAUTION! Ensure correct wire connections to prevent system damage. Verify system type settings match your HVAC equipment.

Specifications

Power Requirements: 24VAC from HVAC system; Battery backup: 2 AA batteries.
Temperature Range: 40°F to 99°F (4°C to 37°C).
Temperature Control: ±1°F (0.5°C) accuracy.
Display: Backlit LCD with large digits.
Programming: 4 periods per day, 7-day programmable.
Compatibility: Most 24VAC heating and cooling systems (1H/1C).
Wire Terminals: R, Rc, Rh, W, Y, G, C, O/B.
Operating Environment: 32°F to 122°F (0°C to 50°C); 0-90% RH non-condensing.
Dimensions: 5.5" H x 3.5" W x 1" D (140mm x 89mm x 25mm).

Controls and Settings

Access menus via front panel buttons. Display shows current temperature, set point, time, and system mode.

Buttons: MODE (Heat/Cool/Auto/Off), FAN (Auto/On), PROGRAM, SET CLOCK, HOLD, UP/DOWN arrows, MENU.

Basic Settings: Adjust temperature with UP/DOWN arrows. Press HOLD for temporary override (display shows HOLD). Press MODE to cycle through system modes. Press FAN to select Auto or Continuous fan operation. Advanced Settings: Press MENU to access installer settings (system type, cycle rate, temperature offset, filter reminder). Programming: Press PROGRAM to set 4 time/temperature periods for each day.

Connecting to HVAC System

Compatible with most 24VAC systems including gas, oil, electric heat, and central air conditioning.

Identify wires: Label each wire from old thermostat before removal.
Match terminals: Connect R (24V power), W (heat), Y (cool), G (fan), C (common).
Heat pump systems: Additional O/B wire for reversing valve.
Verify connections: Ensure wires are secure in terminals and no stray strands.

Tip: Take a photo of old thermostat wiring before disconnecting for reference. If no C wire is present, consult installer options.

Programming Schedules

Create energy-saving schedules for weekdays and weekends.

Enter programming: Press PROGRAM button.
Select day: Use arrows to choose day or day group (Mon-Fri, Sat, Sun).
Set periods: Program up to 4 time/temperature periods per day (Wake, Leave, Return, Sleep).
Adjust times: Press TIME button, use arrows to set period start time.
Set temperatures: Use UP/DOWN arrows to set desired temperature for each period.
Save: Press PROGRAM again to exit and save schedule.
Copy schedule: Option to copy one day's schedule to other days.

WARNING! Do not set extreme temperature differentials (more than 5°F) between periods as this may cause system strain.

Energy Saving Features

Adaptive Recovery: Learns how long your system takes to reach temperature and starts in advance. Temperature Limits: Set minimum and maximum temperature limits to prevent extreme settings. Filter Change Reminder: Program interval (30-365 days) to maintain system efficiency.

Care & Cleaning

Turn off power before cleaning. Use soft, dry cloth to clean display and casing. Do not use liquids or abrasive cleaners.

CAUTION! Never spray cleaning solutions directly on thermostat. Moisture can damage electronic components.

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	No power	Check circuit breaker; verify 24VAC at R and C terminals; replace batteries.
System not responding	Incorrect wiring/mode	Verify wire connections; ensure correct system mode selected (Heat/Cool).
Incorrect temperature reading	Location/calibration	Relocate away from heat sources; check temperature offset in settings.
Short cycling	Cycle rate setting	Adjust cycle rate in installer settings (usually 3-6 cycles per hour).
Schedule not following program	Hold active/batteries	Cancel HOLD function; replace weak batteries causing memory loss.

Reset: Remove batteries, turn off power for 30 seconds, restore power and batteries to factory reset.

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