Trane WHL2168 Blower Wheel 30067439-890 they should be normally closed

they should be normally closed (NC)

this diaphragm provides the mechanical reliability needed to meet strict building automation requirements and optimize energy efficiency throughout the facility

In the Lochinvar and A

This combination unit is primarily used with Danfoss and Secop SC-series compressors

Trane WHL2168 Blower Wheel 30067439-890 they should be normally closedThe Trane WHL2168 Blower Wheel is a precision engineered OEM replacement blower wheel designed for high static residential and light commercial air handling units. Featuring a 12x12 diameter and width, this centrifugal wheel is balanced to minimize vibration and reduce mechanical stress on the blower motor. The counter clockwise (CCW) rotation and 1 2 inch bore ensure a direct fit for compatible Trane and American Standard furnaces and fan coil