Integrated End Switch: Simplifies wiring for burner or circulator pump activation upon valve opening

Reliable Performance: 2-way normally closed logic ensures immediate shutoff during power loss or system triggers

Do I need to drill new holes for installation

Durable Construction: Built to withstand industrial-grade thermal cycling in natural gas applications

Multi-Pole Switching: 3-pole design ensures simultaneous control and isolation for three-phase power circuits

Tekmar Controls 402 Control 328140-751 Integrated End Switch: Simplifies wiringThe Tekmar 402 House Control provides precise management for hydronic heating systems, operating on a 24Vac power supply. This versatile tN2 communication hub is engineered to coordinate a single boiler, domestic hot water (DHW) generation, and a setpoint load. It is capable of managing mixing valve control or up to four zone valves directly. The unit supports outdoor reset technology to optimize fuel efficiency by adjusting boiler water temperatures