While designed for Fenwal systems

While internally similar to horizontal models

a stuck contact in the time delay relay is a common culprit

Wide Compatibility: Commonly utilized with Honeywell MP920B actuators and other industrial motion control systems

the indicator will return to green as the relative saturation of the refrigerant decreases

Weil McLain 511-330-079 Ignition Module THPU32HP7Y While designed for Fenwal systemsUpgrade your system restoration with the Weil McLain 511 330 079 Ignition Module, a critical component for maintaining precise sequence control in CGA Series gas boilers. Engineered as a direct OEM replacement ignition control, this module (model UT 1107 2) operates on a 120V power supply to manage consistent spark to pilot ignition cycles. Designed for professional HVAC contractors, it replaces failing boards in residential hydronic systems to