Modine 5H0717900000 Relay

The Modine 5H0717900000 Relay is a mission-critical time delay relay engineered specifically for Modine unit heaters. This component serves as the direct replacement for 5H71790, ensuring seamless integration into existing control circuits without requiring field modifications. Designed for precision HVAC blower control, this relay manages the sequence of operation by delaying the fan start-up and shutdown cycles. This prevents the heat exchanger from thermal stress and ensures optimal latent heat recovery. As an OEM Modine heater replacement part, it maintains the precise electrical characteristics required for high-efficiency burner profiles. For contractors performing a gas heater repair, this relay offers superior contact reliability and resistance to vibration compared to generic alternatives. Integrating this Modine furnace control relay into your service routine ensures the system operates within its original factory parameters, preventing short-cycling and optimizing airflow delivery across the heat exchanger assembly.

• OEM Compatibility: Specifically calibrated as the primary 5H71790 replacement for a drop-in fit.
• Circuit Protection: Effectively manages inductive loads to prevent contact welding in the heater control circuit.
• Thermal Management: Precise timing allows the heat exchanger to reach temperature before blower activation, preventing cold drafts.
• Durable Construction: Built to withstand the high-ambient conditions found inside unit heater cabinets.

Is the 5H0717900000 interchangeable with older 5H71790 units?
Yes, the 5H0717900000 is the manufacturer-designated superseding part number for the 5H71790, utilizing the same mounting footprint and terminal configuration.

What are the symptoms of a failing Modine time delay relay?
Common indicators include the blower motor failing to engage after the burner ignites or the fan running continuously even after the thermostat call has ended.

Can this relay be used on other unit heater brands?
While functionally similar to other delays, this specific HVAC relay is engineered and rated for the specific power requirements and timing sequences of Modine equipment.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.