Standard Alco D-48 cores are typically packaged with the necessary replacement gaskets for the filter drier shell flange to ensure a leak-proof seal during reassembly

For long-term field reliability

Designed with non-directional flow capabilities

the 919943 provides stable multi-speed blower functionality and diagnostic LED flash codes to isolate system faults rapidly

it prevents voltage leaks and signal loss that often lead to nuisance lockouts

Reznor 98481 Shutter Assembly R-410A Standard Alco D-48 cores areThe Reznor 98481 Air Shutter Assembly is a critical OEM component engineered for precise airflow regulation within Reznor unit heaters. Designed to integrate seamlessly with the combustion air intake system, this shutter assembly ensures optimal oxygen mixture, which is essential for maintaining high thermal efficiency and preventing soot accumulation on the heat exchanger. As a veteran technician knows, a sticking or misaligned air shutter can lead