Command access MLRK1 Series User manual

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1
A.
Kit Includes Tools Required
MLRK1
INSERT Instructions
The Command Access MLRK1 is a eld-installable motorized latch-retraction kit for:
SPECIFICATIONS
• Input Voltage: 24VDC +/- 10%
• Wire gauge: Minimum 18 gauge
• Direct wire run - no relays or access control units
in-between power supply & module
Recommended Power Supplies:
All Command Access exit devices & eld installable kits have been thoroughly cycle tested with Command
Access power supplies at our factory. If you plan on using a non-Command power supply it must be a
ltered & regulated linear power supply.
A. 60241 – MLRK1 motor
B. 60264 – mm4 module
C. 50453 – magnet bracket
D. 40040 – phillips Screws (x2)
• cordless drill
• 1/16” Drill bit
• minor cutting tools and file
• #0 phillips screwdriver
• #2 phillips screwdriver
E.
D.C.
B.
Average Latch Retraction Current: 2 Amp
Average Holding Current: 250 mA
High Torque Mode
Average Latch Retraction Current: 1.3 Amp
Average Holding Current: 215 mA
Standard Torque Mode
• MLRK1-JAC 12 - Jackson 1285, 1286 and 1295 series devices
• MLRK1-KAW17 - Kawneer 1686 and 1786 series devices
• MLRK1-AHT - AHT 8 and 9 series devices
F.
G. H.
E. 40059 – cable mounting pad
F. 40060 – cable tie (x2)
G. 50636 – Cable guides (x3)
H. 50436 – 8’ Power cable

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2
Technical Information
Step 1 - Select your preferred torque mode (ships in standard torque). Press the
device push pad to the desired setting. (We recommend to fully depress
and release 5%, giving the device room for changing door conditions.)
Step 2 - While depressing the push pad, apply power. (i.e. presenting the credential
to the reader).
Step 3 - Continue to keep the pad depressed, the device will beep 6 times. After the
beeps have stopped, release the pad and the adjustment is now complete.
If not to your liking repeat the 3 steps.
Setting PTS
2 Beeps
3 Beeps
5 Beeps
6 Beeps
Beeps Explanation Solution
Over Voltage
Under Voltage
Retraction or dogging failure
PUSH TO SET
> 30V unit will shut down. Check voltage & adjust to 24 V.
< 20V unit will shut down. Check voltage & adjust to 24 V.
After 1st fail: 5 beeps then immediately attempts to retract again.
After 2nd fail: 5 beeps with pause in-between for 30 seconds then device
attempts to retract again.
After 3rd fail: 5 beeps every 7 minutes, device will not attempt to retract.
To Reset: Depress bar for 5 seconds at any time.
Device is recording it’s new position and power mode after the 6th beep.
Troubleshooting & Diagnostics
4 Beeps Failed Sensor Verify all 3 sensor wires are installed correctly. Replace sensor if problem
persists by contacting o󰀩ce.
**Important Info**
Make sure to set PTS before finishing installation MM4 SWITCHES
2
STANDARD TORQUE
HIGH TORQUE
PTS PROGRAMMING OFF
PTS PROGRAMMING ON
1
Ceiling Tile
Module
GREEN
CHANNEL 1
LED
NORMALLY OPEN
DRY CONTACT FROM
ACCESS CONTROL
SYSTEM
NO VOLTAGE
LOCKING
HARDWARE
+
-
CAT
OFF
OFF
ON
ON
Scan me for
more information

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3
installation instructions
1Remove the Front and Back End Caps, which are held on by four screws (two each).
2Material will need to be removed from the Back End Cap.
3Flip the bar over to remove Head Assembly. RIM devices will be held in by 1 screw, CVR devices by 2.
Front End Cap Back End Cap
Head Assembly
Screw
Before: After:
5/8”
5/16”
Drill pilot hole on top corner
(RIM device shown)

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installation instructions
4Flip the device back over and slide the Push Pad to the right, exposing the Front Activating Bracket.
*Move the Push Pad slowly as some Front Activating Bracket pieces are held in by the Push Pad and
tend to fall out when exposed.
5With the Front Activating Bracket exposed, remove the Guides, Thin Clear Washers and Roll Pin.
6Slide the Push Pad to the left to expose the Back Activating Bracket and remove its pieces as well.
Once removed, continue sliding the Push Pad to the left and remove it from the Base Rail.
Push Pad
Front Activating Bracket
Guides
Roll Pin with Thin Clear Washers
(Washers were placed Roll Pin to prevent losing them)
*Front Activating Bracket is
under spring pressure and will
snap back once Roll Pin is removed.
Push Pad
Base Rail
Head Assembly

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installation instructions
7
Flip the Push Pad over and remove the Dogging Assembly underneath (four screws).
8
Reinstall the Head Assembly.
9Install the Magnet Bracket by rst hooking the bottom tab under the Front Activating Bracket.
Then press on the top plane to snap the Magnet Bracket in place.
Dogging Assembly
Head Assembly
Press Here
10 Once snapped in place, tighten the Top Screw to secure the Bracket in position.
Top Screw

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installation instructions
12 Flip MLRK1 over and angle the Scissor Bracket to match the position shown below.
13 To install the MLRK1, slide the Rolling Guide over the Front Activating Bracket. Then place the
Rear Mounting Bracket over the Bottom Dogging Bracket as shown below.
Scissor Bracket
11 Remove the four screws from the Bottom Dogging Bracket, keep the Bracket in place.
Bottom Dogging Bracket
Front Activating BracketRoller Guide
Rolling Guide
Rear Mounting Bracket
Bottom Dogging Bracket

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14
After verifying the correct screw hole location, add the provided Cable Tie to the Rear Mounting
Bracket as shown and tighten the back two screws.
Then ensure the Screws holding down the Scissor Bracket are still angled correctly and the MLRK1
is sitting ush against the Base Rail. Once the MLRK1 is in place, rotate the Scissor Bracket until its
Screws stop against the cut outouts as shown, then tighten the Screws.
15
If you are installing the MLRK1 into a Jackson series device:
• Use the Front screw hole locations on the Rear Mounting Bracket and align with the front holes
on the Base Rail.
If you are installing the MLRK1 into a Kawneer or AHT series device:
• Use the Back screw hole locations on the Rear Mounting Bracket and align with the back holes
on the Base Rail.
installation instructions
To verify you have used the correct hole locations, temporarily install the two provided screws into the
Rear Mounting Bracket. Then press down the Front Activating Bracket and comprae how it lines up
with the Green Sensor Board to the pictures shown below.
CORRECT INCORRECT
Before tightening After tightening

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installation instructions
17 Line up the edge of the Module Bracket to the machining mark on the Base Rail, then tighten all four
screws. (The Module Harness should be running out the back of the Base Rail)
18 Plug the other end of the Module Wiring Harness into the the MLRK1 and secure it with the Zip Tie.
You will use the three provided Cable Guides to nish installing the Module Wiring Harness, which will
be installed on the Channel as shown below.
16 Next, slide the Module Bracket into the Channel at the bottom of the Base Rail.
(Back of Base Rail)
Module Bracket Channel
Module Harness
Zip Tie
Correct
Cable Guide Installation
Push Pad
Guide

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9
installation instructions
17 Reassmble the Front and Back Activating Brackets by:
• First sliding the Rolls Pins into the brackets
• Then placing the two Connecting Rods on the Roll Pins as shown
• Finally slide on the Thin Clear Washers and Guides to complete the assembly
18 Reinstall the Push Pad, making sure the Activating Bracket Guides sit in their correct channel. Then
install the Front End Cap and its two screws.
16 Install the Cable Guides as shown, then press the Module Wiring Harness into them.
19 *IMPORTANT* When reinstalling the Rear End Cap, make sure that it is riding on the Push Pad Guide.
Push Pad
Guide
Correct
Installation
Shown

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10
Step 1 - Select your preferred torque mode (ships in standard torque). Press the
device push pad to the desired setting. (We recommend to fully depress
and release 5%, giving the device room for changing door conditions.)
Step 2 - While depressing the push pad, apply power. (i.e. presenting the credential
to the reader).
Step 3 - Continue to keep the pad depressed, the device will beep 6 times. After the
beeps have stopped, release the pad and the adjustment is now complete.
If not to your liking repeat the 3 steps.
2 Beeps
3 Beeps
5 Beeps
6 Beeps
Beeps Explanation Solution
Over Voltage
Under Voltage
Retraction or dogging failure
PUSH TO SET
> 30V unit will shut down. Check voltage & adjust to 24 V.
< 20V unit will shut down. Check voltage & adjust to 24 V.
After 1st fail: 5 beeps then immediately attempts to retract again.
After 2nd fail: 5 beeps with pause in-between for 30 seconds then device
attempts to retract again.
After 3rd fail: 5 beeps every 7 minutes, device will not attempt to retract.
To Reset: Depress bar for 5 seconds at any time.
Device is recording it’s new position and power mode after the 6th beep.
Troubleshooting & Diagnostics
4 Beeps Failed Sensor Verify all 3 sensor wires are installed correctly. Replace sensor if problem
persists by contacting o󰀩ce.
Make sure to set PTS before finishing installation MM4 SWITCHES
2
STANDARD TORQUE
HIGH TORQUE
PTS PROGRAMMING OFF
PTS PROGRAMMING ON
1OFF
OFF
ON
ON
installation instructions
20 *IMPORTANT* After reinstalling the Rear End Cap and its two screws, double check to make sure the
Module Wiring Harness is in the Cut Out and not being hit by the Rear End Cap.
Rear End Cap Cut Out Push Pad down, Wiring Harness within Cut Out
SPECIFICATIONS for optional rex:
• Single Pole - Double Throw (SPDT)
• Rating: 0.5A @24VAC
• Conguration:
Green - Common (C)
Blue - Normally Open (NO)
Gray - Normally Closed (NC)