Lennox 12U98 24VAC 30-Minute Delay on Break Time Relay

Description

Overview

The Lennox 12U98 is a 24VAC delay on break (DOB) time relay engineered for dependable timing control in HVAC systems. With a 30-minute delay on break timing function, this relay ensures that system components continue to operate for a set period after the control signal is removed — protecting equipment, improving efficiency, and supporting proper sequenced shutdowns.

Key Features

• Delay on break (DOB) timing operation
• 30-minute timed delay after signal removal
• 24VAC operating voltage for compatibility with standard HVAC control circuits
• Genuine Lennox OEM replacement part (SKU: 12U98)
• Designed for reliable, repeatable timing performance in heating and cooling applications

Application

The Lennox 12U98 DOB time relay is ideal for use in furnaces, air handlers, and other HVAC equipment where a controlled delay is required after a call for heating or cooling ends. The delay on break function keeps fans or auxiliary components running after the primary control signal drops, helping to dissipate residual heat and protect heat exchangers and other components from thermal stress.

Specifications

• SKU: 12U98
• Brand: Lennox
• Operating Voltage: 24VAC
• Timing Mode: Delay on Break (DOB)
• Delay Duration: 30 Minutes