Zero #366, Automatic Door Bottom, Heavy Duty Semi-Mortised, Neoprene Seal, 1" Drop

Zero #366, Automatic Door Bottom, Heavy Duty Semi-Mortised, Neoprene Seal, 1" Drop
Zero International

This Zero International #366, semi-mortised, heavy duty automatic door bottom creates a reliable seal at the bottom of doors and prevents infiltration of sound, smoke and fire. It is fitted with a solid neoprene bulb seal and high quality mechanism which has been successfully tested through 5 million cycles. Rated for fire and smoke rated. Available in various anodized finishes, and length is custom cut to size.

For a similar stock item see our Quick Ship TMH Surface Mounted, Heavy Duty, Automatic Door Bottom. 

How to Order: Selecting Finish and Exact Size will determine your total price. Note, product is priced per range with 18.25" - 36" being the lowest priced range. Not sure what size you need? See How to Measure for an Automatic Door Bottom.

See tabs below for additional information
    • SKU
      ZR366AA|36
    • Market price:$122.69
      • save 5%
    • Starting price: Price: $116.56 per item
     

    This Zero International #366, semi-mortised, heavy duty automatic door bottom creates a reliable seal at the bottom of doors and prevents infiltration of sound, smoke and fire. It is fitted with a solid neoprene bulb seal and high quality mechanism which has been successfully tested through 5 million cycles. Rated for fire and smoke rated. Available in various anodized finishes, and length is custom cut to size.

    Installation: Model is designed to be semi-mortised into the face of the door. Installation instructions and screws provided. Screws are colored to coordinate with casing.

    About Light Spring Strength: Light Spring Strength requires less operating force to activate than standard Strength. Light Spring is compatible with ADA Compliant Doors and can be easily used by those with limited mobility. Casing dimensions remain the same. To purchase, select from options above.

    Sizing: To determine sizing, see How To Measure For An Automatic Door Bottom.

    Please note, images are for illustrative purposes only. They are not actual photos. Therefore, actual colors may vary slightly and size many be enlarged to show detail. See product specs for exact measurements.

    This product has a 1 year guarantee against defects in material and workmanship.
    Click to view our Full Warranty Policy.

    For even higher sound control, see our Zero #368 Automatic Door Bottom, High Sound Semi-Mortised

      • SKU
        ZR366AA|36
    • QuickShip
      No
    • Manufacturer
      Zero International
    • MPN
      366
    • Product Design
      • Mounting Type
        Semi-Mortised
      • Door Type
        Wooden Door
    • Dimensions
      • Casing Dimensions
        Casing measures 1.901" H x .916" W. Made of .083" thick aluminum.
      • Length
        Custom Cut to Size
      • Drop Size
        Up to 1" Drop
    • Installation
      • Handing
        Non-Handed
      • Installation Screws
        Installation Screws Provided
      • Sizing
        To determine sizing required see 'How to Size an Automatic Door Bottom'
    • Finishes
      • Finish
        Clear Anodized Aluminum (US28), Dark Bronze Anodized Aluminum (313), Gold Anodized Aluminum, Flat Black (US19)
    • Compliance Details
      • Compliance Details
        Fire Rated, BHMA Certified
      • ANSI Designation
        R3B3441
      • Warranty
        1 Year Limited Warranty

    Automatic Door Bottoms utilize a concealed flat spring mechanism and plunger. When the door is closed, a brass plunger is compressed to automatically lower the seal, starting from the hinge side first. This motion ensures a smooth usage even on an uneven surface and prevents drag. The seal is automatically raised upon opening. These automatic door bottoms have been successfully tested through 5 million cycles!

    See also About Automatic Door Bottoms.

    Click here for a Printable Copy of How to Install an Automatic Door Bottom.

    Automatic Door Bottoms are available with three mounting options: Surface Mounted, Semi-Mortised and Fully Mortised. A surface mounted application can be applied without removing the door from its hinges. For a semi-mortised, if the rabbet in the door is cut-out already, the door does not need to be removed. For a fully mortised application the door should be removed before starting. 

    STEP 1: SIZING YOUR DOOR BOTTOM

    Once your door is ready for installation you need to determine the size required for your door bottom:

    • For a Surface Mounted Application: Measure the distance between the two stop moldings, or if a perimeter door gasket is applied, measure the distance between the two installed gaskets, then minus 1/8-1/4"” (.125”) from the total distance. That is the size needed for your door bottom.

    • For a Semi-Mortised and Fully Mortised Application: Measure your door from side to side; that is the measurement needed for your automatic door bottom.

    For visual presentation see How to Measure for an Automatic Door Bottom.

    How to Install an Automatic Door Bottom- Figure 1

    Once you have determined the size needed, if necessary, trim your door bottom. Use a chop saw or table saw to create a perfectly straight cut.

    Note, Only trim opposite the actuating plunger, brass nut. (Trimming from the brass nut side will ruin your ADB).

     

    How to Install an Automatic Door Bottom- Figure 1You can trim from the edge up to one inch of the screw in the side wall of the ADB.
     

    STEP 2: PREP FOR ATTACHING AUTOMATIC DOOR BOTTOM

    How to Install an Automatic Door Bottom- Figure 3Surface Mounted and Semi-Mortised models need to be applied to the push side of the door only (the side with the door stops). The actuating plunger needs to be applied to the hinge side of the door for all applications.

    Place the automatic door bottom against the door

    Once you have the automatic door bottom leveled and positioned correctly, with a pencil or marker mark where the attachment screws need to be drilled.

    STEP 3: ATTACHING THE AUTOMATIC DOOR BOTTOM

    How to Install an Automatic Door Bottom- Figure 4

    To make installation easier you can drill a pilot hole which will ensure you attach the door bottom to the correctly marked spot. With the screws provided, screw in the automatic door bottom.

    In some models, a plate is provided for the hinge side of the frame. This will protect the door frame from getting worn down by the actuating plunger. If provided, attach to corresponding point on the frame.
     

    STEP 4: TESTING YOUR AUTOMATIC DOOR BOTTOM

    How to Install an Automatic Door Bottom- Figure 5Now that the door bottom is attached, test the door bottom by opening and closing the door to ensure there is a full seal. If the seal does not come down far enough twist the brass nut out, if it seals too tight twist the brass nut in.

    Once you have followed through with all the instructions your Automatic Door Bottom is good to go! Enjoy years of quality sound, draft and light infiltration control with your new door bottom.

     

    compliance details for z366


    SHIPPING / PROCESSING TIME:

    This product ships directly from the manufacturer. 
    Zero is experiencing Significant Delays. If you are in a rush please call us for alternative options.



    • Domestic Shipping Fees- (Hawaii and Alaska not Included):
      • FREE SHIPPING on orders over $300.00 (excludes oversized and freight orders). 
      • There will be a flat $19.99 shipping and handling fee on orders under $300.00.
      • Oversize: Orders containing items sized 50" - 95" have an oversize surcharge of $49.99.
      • Freight Items: Orders containing items sized 96" - 108" have an oversize surcharge of $199.99.
      • Oversize Freight Items: Orders containing items sized 109" and above have an oversize surcharge of $299.99.
      • Orders totals above $2,000.00 will ship free, regardless of size.
         
    • Alaska and Hawaii, Canada, and International Shipping:
    • Returns:
      • This product is custom made and is not returnable.
      • We are committed to your satisfaction, as a courtesy, we may, at our discretion accept returns with a minimum 30% restock fee.
      • CLAIMS FOR SHORTAGE OR DAMAGE IN TRANSIT: All claims must be made within Seven (7) days of receipt of goods.
      • Weatherstripping products will not be considered for returns.
      • Item must be in new, re-saleable condition.
      • Please call or email us to receive an RMA number before returning. No returns will be processed without an RMA number.
      • Return shipping is customer's responsibility. A return address will be provided with RMA#.
      • If you are shipping via USPS (not recommended) do NOT require signature as we will not be able to pick up your package from local post office facility.
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