Trane RLY1890 Relay 320788-703 The S1-031-01251-000 is designed primarily

The S1-031-01251-000 is designed primarily for single and select multi-stage vertical refrigeration and heat pump units

Using it with natural gas without a certified conversion kit and adjustment can result in improper manifold pressure and hazardous operation

High Environmental Resilience: The NEMA 4 rated painted metal enclosure protects internals from moisture and airborne contaminants

Is the SP20075 kit compatible with propane (LP) units

Can I clean this sensor rather than replacing it

Trane RLY1890 Relay 320788-703 The S1-031-01251-000 is designed primarilyWhen you're out in the field and dealing with a faulty 24V SPDT control relay, you need a component that integrates seamlessly into existing low voltage circuits. The Trane RLY1890 is a high performance HVAC relay designed to handle signal switching for air handlers, condensing units, and integrated control boards. As an OEM Trane replacement part, this Single Pole Double Throw (SPDT) relay provides both normally open (NO) and normally closed (NC)