Dorma 900S Series Installation Instructions

08104245
TMP No. Page
INSTALLATION INSTRUCTIONS:
1. Determine unit type: (S) DEAD STOP ONLY or (H) HOLD OPEN.
2. Determine degree of hold-open or dead stop required and select
the "A", "B" and "C" dimensions from the opposite side of page.
3. Prepare door and frame according to the template found on this page.
4. Place end blocks into each end of track. Install track and arm assembly
to door, making sure spring faces pivot.
5. Attach 900-RTS angle bracket to frame.
6. Attach soffit plate to 900-RTS angle bracket.
A
B
CENTER HUNG
REINFORCEMENT
FOR DOOR
900-RTS BRACKET
SOFFIT PLATE
ARM
TRACK
SECTION VIEW IN CLOSED
POSITION

NOTES:

1. DO NOT SCALE DRAWING.
2. DIMENSIONS ARE IN INCHES/(MM).
3. LEFT HAND DOOR SHOWN.
STOP AND HOLDER SERIES: 901H - 903H, 901S - 903S
HEAVY DUTY SURFACE APPLIED STOP/HOLD
PUSH SIDE MOUNT
CENTER HUNG, 900-RTS BRACKET
1 of 2 09/13
Rev.
Always consult DORMA's web site for latest template at www.dorma-usa.com or call 1-800-523-8483.

ADDITIONAL INSTRUCTIONS (HOLD-OPEN UNITS):

*
7. Adjust hold-open to on or off position. One direction
on-opposite direction off.
8. Adjust the holding force by inserting a 5/64"
hex key into the slide shoe bolt. Turn right to increase and left to
decrease holding force.
9. Open door until slide shoe engages with hold-open.
10. To release the door, pull until the slide shoe disengages.
SPINDLE / PIVOT
"B"
HOLD OPEN ADJUSTMENT
"A"
HOLD OPEN FORCE
ADJUSTMENT
(OMIT FOR STOP ONLY)
"B"
1 1
3/8 3/8
(25) (25)
(10) (10)
1-7/16
(37)
7/16
(11)
(OMIT FOR STOP ONLY)
"C"
REINFORCEMENT
FOR DOOR
9/16 FOR 1/4-20 MACHINE SCREWS USE NO.7 DRILL
(14) FOR SEX NUTS USE 3/8" DRILL
TWO (2) HOLES IN DOOR FOR TRACK
FOR 1/4-20 MACHINE SCREWS USE NO.7 DRILL
FOR NO.14 WOOD SCREWS USE 5/32" DRILL
FOUR (4) HOLES IN FRAME FOR 900-RTS BRACKET
DORMA USA, Inc.
Reamstown, PA 17567
END BLOCK