This OEM kit is compatible with Ultra Series 3

the Nordyne 1046528 is the official manufacturer-designated replacement for 903179

allowing for extended life and minimal resistance

and Uni-Line 24192

it serves as a drop-in OEM motor replacement for specific Carrier

Lochinvar & A.O. Smith 100109973 Switch R-410A This OEM kit is compatibleThe Lochinvar & A. O. Smith 100109973 Blocked Inlet Switch is a critical safety component designed for high efficiency condensing boilers and water heaters. As a normally closed air pressure switch, its primary function is to monitor the intake system for airflow restrictions. If the intake air connection screen becomes clogged or the vent piping is obstructed, the switch detects a fall in pressure and opens the electrical circuit, instantly shutting