The Lennox 98P39 ICM203B is an adjustable delay-on-break time delay relay designed for precise control in HVAC and general electrical applications. This relay interrupts power for a preset time after the control signal is removed, helping protect compressors, motors, and other critical components from short cycling and electrical stress. With a wide adjustable delay range from 6 seconds up to 10 minutes, the ICM203B offers flexible timing control for both residential and commercial systems.

Manufactured by ICM Controls, this relay is built for reliability, easy installation, and long service life. It is commonly used in air conditioning systems, heat pumps, refrigeration equipment, and other control circuits where controlled shutdown timing is required.

 

Key Features:

• Delay on break operation for equipment protection
• Adjustable time delay range from 6 seconds to 10 minutes
• Compact design suitable for tight control panels
• Solid-state reliability with consistent timing accuracy
• Designed for HVAC, refrigeration, and general control applications

 

Applications:

• Preventing short cycling of compressors
• Motor and fan delay control
• Sequencing HVAC components
• General-purpose electrical timing control

 

Specifications:

• Model: ICM203B
• Lennox part number: 98P39
• Function: Delay on break
• Time delay range: 6 seconds to 10 minutes
• Application: HVAC and electrical control systems