Diagnostic Test Switch: Allows technicians to verify internal relay functionality and safety circuit interruption instantly

Enhanced Relay Stability: Integrated delay-on-make prevents nuisance tripping and extends the operational life of connected valves and pumps

The Schneider Electric (Erie) VT3253G13A020 Valve Assembly is a heavy-duty three-way zone valve engineered for precise fluid control in hydronic heating and cooling systems

Using this on natural gas systems without a conversion kit (if applicable) will cause improper combustion

120V Line Voltage: Direct power compatibility for standard terminal unit circuits

Danfoss 023U1391 Solid Core 322838-752 Diagnostic Test Switch: Allows techniciansFor mid to large scale commercial refrigeration and air conditioning systems, the Danfoss 023U1391 48 DM Solid Core is the standard for high capacity moisture mitigation. Engineered with a 100% molecular sieve formulation, this 48 cubic inch replacement core is optimized specifically for HFC and HCFC systems utilizing POE or PAG lubricants. While standard cores often focus on acid neutralizing, the 48 DM is a dedicated high moisture capacity solution,