The 163400 controller switches are wired in series with the burner's safety circuit

High-Pressure Integrity: Effectively seals water boxes and pipe ends to prevent leaks and maintain optimal fluid containment

the body includes two 1/8" NPT gauge ports (front and back) for flexible installation of any standard 1

Global Standards Compliance: Rated for use in hazardous areas (ATEX/IEC Ex) and carries UL

Resideo VCZZ1500 Replacement Cartridge 323269-701 The 163400 controller switches areThe Resideo VCZZ1500 Replacement Cartridge is a critical component for maintaining hydraulic balance in hydronic heating and cooling systems. Specifically engineered for use with two way VC series valves, this cartridge features a silver spring and is calibrated for equal percentage extra low flow (0. 7 Cv). This provides the granular control required for high performance fan coil units and terminal reheat coils where precise temperature regulation is