Common Questions Which boiler models use the 383-500-619 kit

Environmentally Rated: Often equipped with a NEMA 4/IP65 rated enclosure to protect the coil from moisture and environmental factors

designed to maintain a reliable conductive path even in applications with high sediment or scale build-up

By integrating this thermostatic radiator valve (TRV)

This unit features a 25 square inch effective diaphragm area

Carrier EF17BG281 Reversing Valve 320819-301 Common Questions Which boiler modelsThe Carrier EF17BG281 Reversing Valve is a critical 4 way components designed for heat pump systems, facilitating the change in refrigerant flow to toggle between heating and cooling modes. This industrial grade reversing valve features a 5 8" x 7 8" ODF (Outside Diameter Female) connection, ensuring a secure solder joint for high pressure applications. Engineered for 24V control circuits, this valve is a direct OEM replacement for various Carrier,