Veris Industries H-221 Transducer R-410A this dual-function switch ensures the

this dual-function switch ensures the blower engages only after the heat exchanger has reached the appropriate temperature and terminates operation if safety thresholds are exceeded

the lever allows technicians to manually open the valve for system filling

suitable for both direct motor control and control circuit sensing

The Weil McLain 386-700-355 is the correct service part for the WGO and WTGO "Gold" series oil boilers

or a pressure switch stuck in the "open" position due to insufficient draft

Veris Industries H-221 Transducer R-410A this dual-function switch ensures theThe Veris Industries H 221 is a high performance 4 20mA current transducer engineered for precision monitoring of solid core electrical loads. Designed for industrial HVACR applications, the H221 current sensor monitors 0 to 300A AC, providing a linear analog output proportional to the current flow. This loop powered device eliminates the need for an external power supply, simplifying integration into existing BAS and PLC systems. As a veterans choice