Field Expandable: Supports the addition of snap-on auxiliary contact blocks (9999D series) for secondary control circuit logic

and Coleman furnaces and boilers

Can the AIM1 convert a 0-10V signal to a 4-20mA signal

making it the preferred choice for tenant-controlled environments or basic residential climate oversight where ease of operation is priority

long-term service in the airflow stream

Watts 0121547 Relief Valve R-410A Field Expandable: Supports the additionFor high capacity commercial and residential hydronic heating systems, the Watts 0121547 (Series LF174A 125) serves as a critical safety component to manage thermal expansion. This 1. 5 inch lead free relief valve is specifically engineered for hot water heating boilers and domestic supply systems, featuring a bronze body construction that meets stringent lead free requirements. With a preset relief threshold of 125 PSI, this valve provides an