Resideo L8124G1020 Relay R-407A larger actuators like the V-3000

larger actuators like the V-3000 series are typically recommended due to higher output force requirements

Universal Mounting: Compact footprint allows for integration into most existing heating cabinets and control panels

This specific model is calibrated for high pressure cutout (opens at 400 PSIG)

including EB4

Resideo L8124G1020 Relay R-407A larger actuators like the V-3000The Resideo L8124G1020 Relay is a specialized Triple Aquastat Relay designed for forced hydronic heating systems that require high limit protection, low limit control, and circulator management. This immersion type controller features SPST high and low limit switching to maintain boiler water temperature and ensure efficient domestic hot water service. For multi zone applications, this unit allows for independent control by using an R845 Relay for