Trane RLY1890 Relay 319825-402 Direct OEM Replacement: Drop-in compatibility

Direct OEM Replacement: Drop-in compatibility for S1-024-24110-001 reduces diagnostic and installation time

How do I verify if this valve is compatible with my furnace's BTU rating

the 031-01798-001 supports multiple programming cycles

supporting multiple signal paths including 115V neutrals and low-voltage control signals

this component ensures a smooth power-up sequence and prevents circuit overloads

Trane RLY1890 Relay 319825-402 Direct OEM Replacement: Drop-in compatibilityWhen 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)