Ademco Inc CT31A1003/E1 Manual Heat Cool Thermostat

Product Description

The ADEMCO INC CT31A1003/E1 is a manual heat and cool thermostat designed for simple, straightforward temperature control in residential HVAC applications. It uses a bi-metal temperature sensor and a snap-action switch to provide reliable on/off control without the need for programming or digital interfaces. The mercury-free design meets current environmental standards, and a decorative back plate is included to cover wall cutouts during installation. HVAC technicians and knowledgeable homeowners install this unit as an economical replacement for basic forced-air heating and cooling systems.

This thermostat is suited for standard residential forced-air systems where a no-frills manual control is preferred or required. It is not compatible with heat pump systems. The included decorative back plate makes it a clean drop-in replacement in typical wall installations where the original thermostat footprint may vary. Its economy-grade positioning makes it a practical choice for rental properties, vacation units, or secondary zones where simplicity and low cost of ownership are the priority.

Key Features

• Manual heat and cool operation with no programming required
• Bi-metal temperature sensor for mechanical temperature detection
• Snap-action switch for reliable, consistent switching
• Mercury-free construction meeting current environmental standards
• Decorative back plate included to cover wall imperfections during swap-outs
• Not compatible with heat pump systems

Compatibility

Designed as an OEM-style replacement for standard residential forced-air heating and cooling systems. Not intended for use with heat pump configurations.

Installation Notes

Installation is typically performed by a licensed HVAC technician or qualified service professional. Always shut off power to the air handler or furnace at the disconnect or breaker before removing the existing thermostat and making wiring connections. Low-voltage thermostat wiring should be handled carefully to avoid shorting terminals during installation. Verify system type before installation, as this thermostat is not suitable for heat pump applications.

Technical Specifications

• Weight: 2.25 pounds
• Unit of Measure: EA
• Package Quantity: 3

Standard Information

• Brand: ADEMCO INC
• Manufacturer Part Number: CT31A1003/E1