SDC KR90F Installation Instructions
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SECURITY DOOR CONTROLS ■ WWW.SDCSECURITY.COM
[t] 800.413.8783 ■ 805.494.0622 ■ E-mail: [email protected] ■ 801 Avenida Acaso, Camarillo, CA 93012 ■ PO Box 3670, Camarillo, CA 93011
INSTALLATION INSTRUCTIONS
INST-KR90F
FOR NON-FIRE & FIRE RATED
REMOVABLE MULLION
The removable Mullion is used with
Two Rim Devices on double doors.
Door Door
STRIKE MULLION
P:\INST INSTRUCTIONS\EXIT DEVICES\INST-KR90F Rev A 09-20 Page 1
Any suggestions or comments to this instruction or product are welcome. Please contact us through our website or email [email protected]
SECURITY DOOR CONTROLS ■ WWW.SDCSECURITY.COM
[t] 800.413.8783 ■ 805.494.0622 ■ E-mail: [email protected] ■ 801 Avenida Acaso, Camarillo, CA 93012 ■ PO Box 3670, Camarillo, CA 93011
STEP 1: MARK CENTERS & HOLE LOCATIONS STEP 2: (cont.)
1. Mark the center of the width of the door opening
at the soffit and at the floor (see Fig. 1).
2. As shown in Fig. 2, mark a centerline of the width of
the Top Bracket edge. Then place the top bracket
at the soffit of the top frame and align the center-
line with the mark that you made in Step 1-1.
Close the doors and butt the centerline side to the
doors. Make sure the centerline on the top bracket
is in alignment with the gap of the two single doors.
2. If the top bracket is installed on a typical door frame
(with a narrow stop), the top bracket overhangs the
stop, the furnished shims should be used (see Fig. 4).
a. Check stop height and match to shims (1/2” or 5/8”).
b. Install shims using the long screws (5-16-18 x 1-1/2”
flat countersunk head) supplied in hardware kit.
Fig. 4
SIDE
VIEW
3. Mark and drill four (4) hole locations on the soffit
as per attached template. Tap the four (4) holes
with 5/16-18 thread.
CENTERLINE
OF OPENING 5/16-18 x 1-1/2”
FLAT HEAD MACHINE
SCREWS
5/16-18 x 5/8"
FLAT HD MACHINE
SCREWS
STEP 3: INSTALL BOTTOM BRACKET
FIG. 1
1. If there is a threshold, be sure to cut the threshold
so that the bottom bracket can be installed on the
flooring directly.
2. Place the mullion tube into the bottom bracket and
put it’s top into the top bracket. Close the door again.
Move the bottom bracket at floor slightly and butt the
mullion to the doors. Align centering notches on the
bracket with the mark the you made in Step 1-1.
Mark and drill four (4) holes on the floor for anchors.
Tighten the bottom bracket to the floor with provided
anchors and bolts (see Fig. 5).
FIG. 2
Mark a centerline on Top Bracket
Drill & tap
5/16-18 thds
(4 places)
Door
Frame
STEP 2: INSTALL TOP BRACKET
1. Tighten the top bracket to the soffit with the screws
(#5/16-8 X 5/8”) provided (see Fig. 3).
Fig. 3
DOOR FRAME
WITH WIDE STOP
SIDE
VIEW
Fig. 5
Floor
Mullion
5/16-18 bolts
(4 places)
Bottom
Bracket
SOFFIT
5/16-18 x 5/8"
FLAT HD MACHINE SCREWS
P:\INST INSTRUCTIONS\EXIT DEVICES\INST-KR90F Rev A 09-20 Page 2
Anchor as needed depending on type of floor or threshold
(2 masonry anchors provided)
SECURITY DOOR CONTROLS ■ WWW.SDCSECURITY.COM
[t] 800.413.8783 ■ 805.494.0622 ■ E-mail: [email protected] ■ 801 Avenida Acaso, Camarillo, CA 93012 ■ PO Box 3670, Camarillo, CA 93011
STEP 4: INSTALL CYLINDER 4. Place and fasten the unlock driving plate and
the rear plate back in place (see Fig. 9)
If the mullion has a cylinder installed, skip this step to the next. If the mullion does not have a cylinder installed, follow the procedure below:
1. Releasing the fixing screws on both sides of the top
fitting for removing the rear plate, see Fig. 6. After
the rear plate is removed, release three (3) fixing
screws on the unlock driving plate, see Fig. 7.
Unlock Driving
Plate
Rear
Plate
Top Fitting of
Mullion Tube
Fig. 6
Fig. 9
Rear
Plate
Unlock Driving
Plate
Fig. 7
2. Slide cylinder collar onto rim cylinder body, then
install a cylinder mounting cup on the back side of
the top fitting.
3. Install the rim cylinder into the top fitting, and align
tailpiece with tailpiece hole on the cylinder cup then
let the end of tailpiece go through the hole. Adjust
and cut break-off screws to eliminate excess length,
secure rim cylinder (see Fig. 8).
Break-Off Screws
#3/16-18 X 1-1/2”
Cylinder
Mounting Cup
Cylinder
Collar
Rim Cylinder
P:\INST INSTRUCTIONS\EXIT DEVICES\INST-KR90F Rev A 09-20 Page 3
STEP 5: INSTALL MULLION TUBE
1. Measure the distance from the soffit to the floor
shown as “H” in Fig. 10. then subtract 1-7/8”
(47.5mm) from the measurement that is the actual
length you need to use, shown as “C” in Fig. 10.
2. Mark a cutting line on the bottom end of the mullion
tube then cut the excess portion.
3. Place the mullion tube into the bottom bracket and
the top bracket. Make sure the mullion tube should
snap firmly into the place. If the mullion tube is cut
too much and causes too much of a gap, the shim
plates should be used to raise the bottom bracket.
the shim plate is the same size as the base of the
bottom bracket. Shim plates are not included in the
mullion hardware kit. Sold separately.
4. Ensure that the mullion is easily removable when
the key is turned in it’s cylinder or operate the cylinder
turn.
SECURITY DOOR CONTROLS ■ WWW.SDCSECURITY.COM
[t] 800.413.8783 ■ 805.494.0622 ■ E-mail: [email protected] ■ 801 Avenida Acaso, Camarillo, CA 93012 ■ PO Box 3670, Camarillo, CA 93011
Soffit
DO NOT CUT
THIS END
H
C
Floor
H (Height of opening)
- 1-7/8”____________
+ C (Cut length of Mullion) Fig. 10
STEP 6: INSTALL STRIKES AND RIM EXIT DEVICE
1. For the Non-Fire Rated Keyed Removable Mullion
Install rim strikes on both sides of the mullion as
per the template and installation instructions of
the rim exit device.
2. For the Fire Rated Keyed Removable Mullion
Use the provided instructions of mullion strike and
strike hook to install them on the mullion and each
door leaf. Ensure that the strike hook engages the
strike without interference to the latching mechanism.
Open and close the door for several times to make
sure of correct installation. The strike hook should not
cause friction or bind during the opening and closing
cycles of the door.
P:\INST INSTRUCTIONS\EXIT DEVICES\INST-KR90F Rev A 09-20 Page 4

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