How to Field Change the HAC Damper from PO to PC

Change Power Close (PC) Dampers to Power Open (PO) or vice versa

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NOTE: Round Spring Plates (shown) and Adjustable Spring Plates are interchangeable.

If Adjustment feature is required after Plate change, please phone the factory for more detail.

Damper #1 is a Power Closed Damper: Note Position of the Motor mounted as shown in Figure 1.

Figure 2: shows other side of the Damper with Spring Plate and Spring Holding the Damper Open.

Hoyme-po-pc-field-change

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