Optimized Airflow Maintenance: The 1550 RPM 1-speed configuration is factory-calibrated to meet the original equipment manufacturer's specifications for system cooling and heating cycles

Specifically designed for the Carrier 48DJD034-600 series and compatible with various 48JJ and 48HX models

This unit is specifically engineered with zero-crossing technology to handle the high inrush currents typical of LED lighting scheduled timers

it is a universal slotted crankarm compatible with most industrial 1/2" shaft linkages

Lochinvar & A.O. Smith 100284494 Filter Air Inlet 320788-704 Optimized Airflow Maintenance: The 1550The Lochinvar & A. O. Smith 100284494 Filter Air Inlet is a critical OEM component designed to maintain the integrity of the combustion process in high efficiency condensing boilers and water heaters. As a veteran grade air inlet filter replacement, this assembly utilizes a robust Sohlberg filter media to effectively strain out airborne particulates, dust, and debris before they reach the heat exchanger or blower housing. By ensuring a clean stream of