For full capacity

this 3P 24V coil contactor is the professional-grade solution to restore reliable switching sequences in demanding environments

It comes factory-equipped with a 3-6" w

this HVAC high-limit switch is essential for resolving lockout conditions caused by overheating

Weil McLain 383-500-665 Control Module Els PW 29614 For full capacityThe Weil McLain 383 500 665 Control Module is the professional grade U Control Upgrade Kit engineered specifically for Ultra Series 1 and Series 2 gas boilers. This OEM boiler control board is a comprehensive field integration solution, serving as the official 383 500 191 replacement. It is critical for technicians to note that this is an upgrade kit, not a standard drop in component. The 383 500 665 provides advanced diagnostics and enhanced ignition