Technicians should verify the hub location on the spider (Position B) to ensure proper alignment within the shroud

The Watts 0881399 Air Gap (model 909-AG-A) is a heavy-duty

For technicians managing commercial or municipal water systems

15" outside diameter and is engineered for a 7/8" fixed bore shaft

it should be normally closed

Berko 3900-2008-001 Motor Els PW 29614 Technicians should verify the hubThe Berko 3900 2008 001 Motor is a precision engineered replacement component designed for compatibility with specific Berko and QMark 3900 series electric unit heaters. Operating at a dual voltage range of 240 277V, this permanent split capacitor motor delivers a consistent 1550 RPM output, ensuring optimal CFM performance in heavy duty commercial or industrial heating applications. Built with a Clockwise (CW) rotation (determined from the lead end),