The McDonnell & Miller 313900 is a high-performance valve bracket gasket engineered specifically for technical reliability in boiler water feeder systems

This module is designed to accept a nominal 24VAC input

ensuring it is ready for immediate installation and vacuum testing

8 bar) and is compatible with modern refrigerants

this multi-position F145-30F selector switch ensures seamless communication between the furnace control board and the blower assembly

Heil Quaker ICP 1110752 Fan Control Els PW 17895 The McDonnell & Miller 313900This Heil Quaker ICP 1110752 Fan Control is a critical electronic component engineered for HVAC fan motor regulation within International Comfort Products (ICP) systems. Designed as a direct replacement part, this fan control board manages airflow management by modulating fan speeds based on real time system demands. For service technicians, this board is essential for resolving furnace blower motor cycling issues or intermittent operational failures