Trane TMR00112 Electric Heat Sequencer Timer

Product Description

The TRANE TMR00112 is an electric heat sequencer timer designed for staged electric resistance heating systems. It controls the sequenced energizing of electric heating elements to prevent simultaneous inrush current, protecting the electrical system and extending element life. This unit features one switch and one timing circuit, with an on-delay range of 30 to 90 seconds and an off-delay range of 1 to 30 seconds. Licensed HVAC technicians and electricians install this component during electric furnace service or replacement of failed sequencer timers.

This sequencer timer is used in residential and light commercial electric forced-air heating systems where staged element activation is required. The adjustable on and off timing ranges allow it to serve a variety of system configurations. It is typically mounted inside the electric furnace cabinet on the control panel or element assembly. Applications include electric air handlers and electric furnaces where load sequencing is critical to system performance and circuit protection.

Key Features

• Single-switch, single-timing-circuit design for straightforward staged heating control
• On-delay range of 30 to 90 seconds prevents simultaneous heating element inrush
• Off-delay range of 1 to 30 seconds for controlled de-energizing of heating elements
• Compact form factor suitable for installation inside standard electric furnace cabinets
• OEM-style replacement for maintaining original system sequencing behavior

Compatibility

Designed as an OEM-style replacement sequencer timer for TRANE electric furnaces and air handlers requiring a single-switch, single-timing sequencer with on-delay range of 30 to 90 seconds and off-delay range of 1 to 30 seconds. The legacy cross-reference identifier 24A34 002 may assist in locating equivalent applications.

Installation Notes

Installation should be performed by a licensed HVAC technician or electrician. Disconnect and lock out all electrical power to the unit before removing the existing sequencer or handling any wiring. Verify the replacement timing ranges match the original equipment specifications before installation. Work should comply with applicable NEC requirements and local electrical codes.

Technical Specifications

• Switch Count: 1
• Timing Circuit Count: 1
• On-Delay Range: 30 to 90 seconds
• Off-Delay Range: 1 to 30 seconds
• Shipping Length: 5.6 inches
• Shipping Width: 3.6 inches
• Shipping Height: 2.6 inches
• Shipping Weight: 0.19 pounds

Standard Information

• Brand: TRANE
• Manufacturer Part Number: TMR00112