Subscribe to this ThreadThread ToolsSearch this Thread#1 06-28-20, 01:48 PMJjm0971MemberThread StarterJoin Date: Jan 2005Location: United StatesPosts: 32 Upvotes: 0Received 0 Upvoteson0 PostsHoneywell damper normally close or openI need to replace one damper.Looking online, I have the choice SKU M847D-ZONE if normally open or SKU M847D-VENT if normally closed.How do i know which one i need to buy?Thank you very much,JmUp.oad picsLast edited by jm0971; 06-28-20 at 02:32 PM.Reason: Upload pics Upvote #2 06-28-20, 07:14 PM557TinkerManMemberJoin Date: Jun 2018Location: USAPosts: 110 Upvotes: 5Received 19 Upvoteson18 PostsTypically on a Honeywell zone panel terminals M1 and M6 are used to power close a normally open damper to the closed position. I suspect yours is the same. They use powered close so that if you have a problem the zone damper defaults to the open position. Do you need a complete damper or just the motor, you can get them separately. Upvote Bear4995 voted this post useful.#3...
