Schlage M422 Installation Instructions Manual Download Page 2

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Features

Automatic Voltage Selection (AVS) 

Magnet immediately detects 12VDC 

or 24VDC when power is connected.

Anti-Tamper Switch (ATS) 

An indication is provided should the magnet cover become 

unsecured from lock.

Magnetic Bond Sensor (MBS) 

Detects proper bond between magnet and armature. It can be 

monitored remotely and locally with an LED.

LED 

Provides local indication of MBS status.

Door Position Switch (DPS) 

Indicates whether door is open or closed. This feature is used in 

conjunction with the MBS.

Relock Time Delay (RTD) 

Relock time can be changed. Range is 1 - 30 seconds.

Models

M422 (Traffic Control)

 

UL1034 and 10C/500 lb and 3 hr rating

M452 (High Security) 

UL1034 and 10C/1000 lb and 3 hr rating

M492 (Max Security) 

UL1034 and 10C/1500 lb and 3 hr rating

Trims

Basic 

Auto Voltage Selection (AVS) for 12 or 24VDC

Plus 

Basic fe Door Position Switch (DPS), Magnetic Bond Sensor 

(MBS), Relocking Time Delay (RTD), LED Status Indicator (LED) and 

Anti-Tamper Switch (ATS)

UL Requirements

•  Units shall not impair operation of panic hardware mounted on door.

•  Units shall not impair intended operation of an emergency exit.

•  Not to be used without UL approved latching hardware.

•  Units/Models are intended to be connected to UL Listed Equipment, not 

intended for Burglar or Fire Alarm Initiating or Indicating Devices.

•  Ambient Conditions - “For Indoor Use Only”.

•  Wiring methods shall be in accordance with the National Electrical Code, 

ANSI/NFPA 70.

• 

This device complies with part 15 of FCC rules.

Operation is subject to following two conditions:

1. This device may not cause harmful interference.

2. This device must accept any interference received, including any 

interference that may cause undesired operation. Changes or 

modifications not expressly approved by party responsible for compliance 

could void user’s authority to operate equipment.

Electrical Specifications

Model

Amps (12VDC)

 

Per Lock

Amps (24VDC)

 

Per Lock

Holding Force 

(lbs) Per Coil

M422

1.500

0.760

500

M452

1.500

0.760

1000

M492

1.300

0.700

1500

Warnings and Cautions

 WARNING

Warnings indicate potentially hazardous conditions, which if not 

avoided or corrected, may cause death or serious injury.

 CAUTION

Cautions indicate potentially hazardous conditions, which if 

not avoided or corrected, may cause minor or moderate injury. 

Cautions may also warn against unsafe practices.

Caution:

  Cautions indicate a condition that may cause equipment 

or property damage only.

Pre-Installation Considerations

•  Use ONLY the hardware provided for mounting this product  

(NOTE: Non-standard Door thickness may require different sex nut 

hardware - see specific instructions for required hardware).

•  Follow the installation procedure as described in this manual.
•  Check door thickness. If the door is not 1

C\v

” thick, a different sex nut 

will be required. Contact customer service at 1-877-671-7011.

•  Check door header. A minimum 2

C\v

” thick, flat surface is needed to 

securely mount all screws for the magnet. If you do not have the 

required surface, you will need filler plates and/or angle brackets to 

properly mount the magnet.  

Contact customer service at 1-877-671-7011.

Door: 1

C\v

” Thick

Header: At least 

2

C\v

” thick, flat

Summary of Contents for M422

Page 1: ...llation Instructions Mounting Bracket 2 Magnet Assembly 2 Magnet Screws 4 Inside Mounting Bracket Screws 4 Armature Bolt 2 Conical Washer 2 Star Locking Washer 2 Flat Washer 2 Armature plate 2 Sex Nut...

Page 2: ...C rules Operation is subject to following two conditions 1 This device may not cause harmful interference 2 This device must accept any interference received including any interference that may cause...

Page 3: ...he magnet in one of the locks must be reoriented Shown from Exterior Magnet Magnet Wiring Covers 1b Reorient magnet if necessary a Remove screws wiring cover and end blocks Magnet End Block with screw...

Page 4: ...Install MBS indicator optional plus models ONLY 2a Remove cover 2b Drill hole for MBS indicator 0 25 6 mm hole drill bit 0 75 19 mm M420 0 50 13 mm M450 490 0 75 19 mm Bottom 2c Install MBS indicator...

Page 5: ...her door thicknesses please contact customer service 1 877 671 7011 Using the incorrect sex nut for your door thickness will lead to improper function and possible injury OR OR Armature Bolt Drill and...

Page 6: ...l Sheet Metal Alignment Tool Wires Outside 5b Remove wiring covers and end blocks 5c Slide one magnet onto bracket Outside 5d Slide second magnet onto bracket Outside 5e Align magnets to armatures a C...

Page 7: ...nal holes a Install alignment tool on brackets b Fully tighten four 4 screws c Drill eight 8 remaining holes Use 10 24 tap if metal is reinforced Outside Fully tighten four screws 5j Install eight 8 s...

Page 8: ...s to mounting brackets 6a Slide one magnet onto bracket Outside 6b Install joining block into magnet 6c Slide second magnet onto bracket Align with joining block Outside 6d Secure locks with four 4 sc...

Page 9: ...o board standard model 7a Review wiring connections TB1 Mag Lock Board DC DC From Magnet TB1 Mag Lock Board DC DC From Magnet DC DC 7b Connect wires to boards From Door Frame DC Power Wires From Magne...

Page 10: ...Normally Open NO Wiring in Parallel Switch position will be closed when doors are closed and locked To be used with normally open terminals Switch position will be open when doors are closed and locke...

Page 11: ...Note Two MBS plugs are interchangeable Min Time Max Time Mag Lock Board 8c Connect plugs to boards From LED From MBS 2 From MBS 1 From Magnet 8d Connect ATS wires ATS NC violet NO gray C white Switch...

Page 12: ...Allegion 2015 Printed in U S A 44487304 Rev 11 15 f Customer Service 1 877 671 7011 www allegion com us...

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