How to reverse a Honeywell zone damper from normally open to normally closed. This is required sometimes when you are using it for a fresh air application instead of zoning. Haven IAQ allows you to control this damper out of the box as a n.o. but I still prefer them to be n.c. Yes you can get fresh air dampers from Honeywell that are n.c. but this is an alternative and I like the zone actuator better because you can limit how far it opens.
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