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General| Temperature Range | 45°F to 90°F (7°C to 32°C) |
|---|---|
| Display | LCD |
| Compatibility | Single-Stage Heating and Cooling Systems |
| Product Type | Thermostat |
| Power Source | Battery |
| Programmable Schedule | 7-day |
Steps for positioning and mounting the thermostat wall plate, including marking holes and leveling.
Instructions for connecting wires to the thermostat terminals, including jumper wire usage and securing connections.
Guide to setting system switches (HE/HG, Auto Recovery, System Type) and attaching the thermostat unit.
How to change the thermostat's temperature display between Fahrenheit (F°) and Celsius (C°), including reset procedure.
Instructions for setting the current day and time, including 12-hour and 24-hour format options.
Guide to temporarily or permanently overriding programmed settings to adjust temperature manually.
Steps to permanently override all settings, adjust temperature, and return to normal display using Hold/Return.
Explanation of how pre-programmed settings optimize energy usage and save money without further action.
Steps for programming custom temperature settings, including time increments and saving settings.
Description of the backlight feature for display viewing in the dark and how to activate it.
Explanation of the filter change indicator, how it appears, and how to reset the filter timer.
How to adjust the system ON/OFF cycle rate (span) to optimize performance and prevent rapid cycling.
Explanation of low battery warnings, their stages, and what happens when battery power is insufficient.
How Auto Recovery gradually adjusts temperature to comfort levels and how to disable it.
Indicates an unexpected battery problem; requires reset and reprogramming after battery replacement.
Automatically turns the system off if temperatures exceed limits (95°F) or drop below limits (40°F).
Defines the program range and display range for temperature settings, including out-of-range indicators.
Explains the 3.5-minute delay after cooling stops to prevent compressor damage from rapid cycling.
How to restore factory settings by pressing the reset button with a paperclip, which erases user programs.
Troubleshooting steps for a blank thermostat display, including checking batteries and resetting.
Steps to resolve issues with the auto fan feature, potentially involving the HG/HE switch.
Solution for an erratic display, involving resetting the thermostat and reprogramming settings.
Checks for correct time (AM/PM), permanent override mode, and day setting for program changes.
Steps to troubleshoot heating/cooling system control issues, including delays, power, batteries, and wiring.
Solution for the display turning off immediately, primarily involving replacing batteries.
If the system operates when off, the unit likely needs replacement.
If the display shows permanent HI, LO, or ERR, the unit likely needs replacement.
Reference to pages 28-31 for instructions on how to operate the thermostat manually.
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