Hoffman Controls 760-ECM Control 321042-401 As the direct replacement for

As the direct replacement for S1-024-25840-000

the RLY1634 is 100% compatible with a wide range of residential and commercial Trane and American Standard equipment

Its NEMA 1 rated enclosure ensures protection for internal components while the integrated Hand-Off-Auto (HOA) override switch allows for manual circuit testing or emergency bypass without additional wiring

Replacing a fouled or drifted probe restores system reliability and prevents nuisance trips or compressor overheating

reducing fuel waste during startup

Hoffman Controls 760-ECM Control 321042-401 As the direct replacement forThe Hoffman Controls 760 ECM is a high performance ECM motor speed controller engineered for precise, manual modulation of brushless DC motors. Operating on a class 2, 24V AC power source, this controller is line voltage independent, simplifying field installation for contractors. By utilizing a PWM output (Pulse Width Modulation), the 760 ECM allows technicians to dial in specific airflow requirements, optimizing HVAC efficiency and reducing overall