C250 ROLL -UP DOOR INSTALLATION GUIDE
SAFETY CONSIDERATIONS Please watch the DVD that has been provided prior to installation. DO NOT CUT BANDS OR WRAPPING UNTIL INSTRUCTED. WARNING A rolling door is a large heavy object that moves with the help of springs under extreme tension and electric motors. Moving objects and springs under tension and electric motors can cause serious injuries or death. For your safety and the safety of others, follow these instructions.
OPERATION / MEASUREMENTS OPERATION C250 A B C D E Push-up 2 1/2” 6 1/4” 6 1/4” 10 1/4” 9 7/8” Reduced Hand Chain 2 1/2” 6 1/4” 8 1/4” 10 1/4” 9 7/8” c c C250 MODELS Opening Vertical Horizontal Height Headroom Headroom Thru 8’ 18” 20” Over 8’ Thru 10’ 19” 21 1/2” Over 10’ Thru 12’ 20” 22 1/2” Over 12’ Thru 14’ 21” 23 1/2” Over 14’ Thru 18’ 22 1/2” 24 1/2” Over 18’ Thru 20’ 23 1/2” 25 1/2” WWW.MUELLERINC.
STEP 1: WALL OPENING DO NOT CUT BANDS OR WRAPPING UNTIL INSTRUCTED. A heck wall opening width and height and verify these C measurements against size of door to be installed. B Verify that jambs are plumb. C Check floor and header for level. D Check for adequate side clearance at jambs and clearance above and at sides of header. See Clearance charts for minimum requirements. E Verify that the guide mounting surface on the jamb is flush.
RUD1 Plates are provided with doors greater than 12’ x 12’. Field fabricated support brackets are also acceptable on doors larger than 12’ x 12’. This reinforces the door jambs and prevents the door from coning or walking. D1 RU Optional Field Fab RUD1 provided with door STEP 3: GUIDES AND MOUNTING BRACKETS TO STEEL JAMB A Mounting brackets and guides must be attached using fasteners provided. WWW.MUELLERINC.
ITEM JAMB FASTENERS DRILL SIZE PROVIDED FASTENERS BRACKETS Steel Concrete/Filled Block Wood 3/8” - 1” Hex Bolt & Nut 3/8” - 3/4” Powers Wedge-Bolt 3/8” - 7x3” Lag Screw 7 1/16” Powers 01316 Optional Provided Not Provided Not Provided GUIDES Steel Concrete/Filled Block Wood 1/4” - 14x1 - 3/4” TEK Screw 1/4” x 1 3/4” Powers Wedge-Bolt 1/4” - 10x1” Lag Screw None Powers 01314 Optional Provided Not Provided Not Provided B The opening edge of guides should be inset a very small amount
STEP 5: ELECTRIC OPERATOR (OPTIONAL) A Install as per instruction provided in electric operator kit. NOTE: Use the DUAL TENSIONER and not the U-BOLT that is in the Operator Kit. STEP 6: T ENSION END RIGHT SIDE OF DOOR (LOOKING FROM THE INSIDE OUT) IS RECOMMENDED A Using dual tensioner assembly’s spring roll pin located in knurled wheel, rotate upward in the direction that clears the axle. B Slide dual tensioner assembly vover axle and tensioning hub, with arrow pointing toward wall.
STEP 8: LIFT DOOR DO NOT CUT BANDS OR WRAPPING. A Orient door with bottom bar located at 7 o’clock position. The bottom bar should be facing back into the building. B Lift door using a forklift that has padded forks in order to prevent damaging or denting the door curtain. Leave the forklift in position until the door is securely fastened to the mounting brackets. C Position door on brackets with dual tensioner and tension axle support resting safely on top of mounting bracket flange.
STEP 9: TENSIONER END A Loosely attach dual tensioner assembly to door mounting bracket flange using the hardware provided. B Tighten the red, square headed, 3/8 inch set screw on the tensioner bracket. Dual Tensioner Door Header Mounting Plate Mounting Bracket Flange 3/8˝ Washer Door Jamb 3/8˝ x 3/4˝ Bolt Guide STEP 10: NON-TENSIONER END A Loosely attach axle support to door mounting bracket flange using the hardware provided.
STEP 11: ELECTRIC DRIVE END (OPTIONAL) A Install as per instructions provided in electric operator kit B If electric operator has a drive chain, do not attach until door spring tension has been adjusted in step 15 STEP 12: POSITION DOOR A With door still wrapped and banded. Push door assembly as close as possible toward header and still be able to rotate freely. Each end of door should be equal distance from the header and the curtain must be centered in the door opening.
STEP 13: S ETTING SPRING INITIAL TENSION DO NOT CUT BANDS OR WRAPPING UNTIL INSTRUCTED. A Rotate door two revolutions, rotating the top of the door towards the opening. NOTE: If your building design does not allow for door rotation, lower the door curtain into the guides and follow the instructions in Step16 to set door tension.
STEP 14: M AKE SURE THE TOP OF GUIDE IS BENT A Bend the flap at the top of the guide over the headstop with a Vise-Grip or an adjustable wrench. STEP 15: CHECK DOOR OPERATION A Lower and raise the door to test door operation.
STEP 16: ADJUST SPRING TENSION DOOR MUST BE IN THE FULLY OPENED POSITION TO ADJUST SPRINGS. LOSS OF SPRING TENSION WILL CAUSE DOOR CURTAIN TO DROP RAPIDLY. A Open door fully with the bottom bar resting against the head stops. B At dual tensioner end, place ½ inch ratchet into tensioning hub and hold the ratchet firmly. Have someone else loosen the square, red headed 3/8 inch set screws on the dual tensioner and support bracket. C To increase spring tension, pull down on ratchet ¼ turn.
STEP 17: C HAIN HOIST DRIVE END (OPTIONAL) (N/A FOR L250 MODEL) Side View Door Assembly Chain Hoist Assembly Chain Hoist Assembly Axle Support Set Screws Mounting Plate Door Header Mounting Bracket 3/8˝ Washer Gear Door Jamb Hand Chain Guide 3/8˝ x 3/4˝ Bolt A Reposition chain hoist assembly on door axle so that the gear on the chain hoist assembly fully engages the door ring gear.
STEP 18: REMOVE STRIPABLE FILM If the door has (on the outside of door) Stripable Film remove now. STEP 19: GUIDE PLUG INSTALLATION A Insert the guide plug into the holes located on the guide as shown. The plugs must be inserted from the inside of the guide. B NOTE: Make sure the larger end of the plug faces the inside of the guide. If installed from the outside, the curtain will hang on the guide plugs.
C250 INSTALLATION GUIDE CALL 877-2-MUELLER This toll-free number connects you to the branch nearest you. We have more than 30 locations across the southwest. CLICK WWW.MUELLERINC.COM Our website offers photos and details on all of our metal products. COME BY Our branches are staffed with experts who are always happy to answer any questions you have.
