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This 740 series valve is rated for a maximum temperature of 250°F (121°C)
Operating on a 120Vac supply
Field Serviceability: Designed with an external adjustment screw and internal terminal strip for rapid onsite wiring and setpoint modification
Common Technical Questions What causes this ignitor to fail prematurely
Tekmar Controls 563 Thermostat 321142-301 This 740 series valve isFor professional contractors managing multi stage conventional or heat pump systems, the Tekmar 563 Thermostat offers a robust, high performance interface for total climate control. This WiFi enabled thermostat serves as a central hub, supporting 2 stage heating and 2 stage cooling in conventional setups, and up to 4 stage heating and 2 stage cooling in heat pump applications. It integrates seamlessly with the Watts Home mobile app, allowing for
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