Description
Keep your Reznor commercial or industrial heater running smoothly with this genuine Reznor 259521 Time Delay Relay Kit/Sequencer — a critical replacement part for proper control of blower and venting sequences in gas‑fired unit heaters.
Key Features
- OEM Quality Replacement: Designed to meet original Reznor specifications and replace obsolete relays like P/N 46233 and 259518 in many Reznor units.
- Time Delay Function: Ensures the correct sequencing of electrical components — delaying power to protect the blower and vent motor until proper conditions are met.
- Wide Compatibility: Fits 25 – 400 MBH B/F model fan/blower type gas‑fired unit heaters and other compatible Reznor models.
- Easy Install: Simple relay replacement kit that HVAC professionals can install with standard tools.
- Reliable Performance: Helps maintain steady operation, reduce wear on system components, and support safe heater cycling.







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