PT21 - Electric lock Dormakaba - Free user manual and instructions

Product Type	Electronic Pushbutton Lock
Brand	Dormakaba
Model	PT21
Dimensions (Exterior)	4.5 x 2.5 x 1.5 inches
Weight	0.5 lbs
Power Source	4 AA batteries (not included)
Battery Life	Approximately 1 year under normal use
Operating Temperature	-4°F to 140°F (-20°C to 60°C)
Keypad Type	Backlit tactile buttons
User Codes	Up to 25 programmable user codes
Master Code	1 master code for programming and deletion
Entry Method	Keypad code entry
Lock Type	Mechanical deadbolt with electronic release
Installation	Fits standard door prep; requires 2-3/8" or 2-3/4" backset
Door Thickness	1-3/8" to 2" (35mm to 51mm)
Security Features	Anti-tamper alarm, auto-lock option
Maintenance	Clean with a soft damp cloth; do not use solvents
Spare Parts	Batteries, mounting screws, strike plate
Repairability	Field replaceable batteries and exterior assembly
Certifications	ANSI/BHMA Grade 2
Warranty	Limited lifetime warranty

Frequently Asked Questions - PT21 Dormakaba

How do I program a new user code?

Enter the master code followed by the program button, then enter the new user code and press #. Refer to the manual for full steps.

What should I do if the keypad stops responding?

Check the battery level. Replace all four AA batteries with fresh ones if needed. If still unresponsive, reset the lock by removing batteries for 10 seconds.

Can I use the PT21 on a metal door?

Yes, but you may need an optional mounting kit for metal doors. Ensure the door thickness is within 1-3/8" to 2".

How do I change the master code?

Enter the current master code twice, then press the program button. Enter the new master code followed by #. For security, change it periodically.

What happens if the batteries die while I'm locked out?

The lock has a 9V battery backup jump start. Touch a 9V battery to the contacts on the keypad to power the lock temporarily.

Is the PT21 weather-resistant for outdoor use?

Yes, it is rated for outdoor use with an operating temperature range of -4°F to 140°F. However, avoid direct rain exposure.

How do I delete a user code?

Enter the master code and press the program button. Then enter the user code to be deleted and press #. Repeat for each code.

What is the auto-lock feature and how do I enable it?

Auto-lock relocks the door automatically after a set time delay (10-90 seconds). Enable it by entering the master code + program + 7 + delay in seconds + #.

My lock is making a buzzing sound but not unlocking. What's wrong?

This indicates a mechanical binding. Ensure the door is properly aligned and the strike plate is not obstructed. Lubricate the bolt with graphite powder.

How can I reset the lock to factory defaults?

Remove the batteries, press and hold the program button, reinsert batteries while holding. Wait for 2 beeps. All codes will be cleared.

USER MANUAL PT21 Dormakaba

Two identical line drawings of a metal frame with two supports and a central support, no text or symbols present.

Narrow Headers - 1" and 1-1/4"

with PT21/PT21M for single or paired doors

Installation instructions

933820 - 08-2018

| EN |

Table of contents

1 Technical specifications 3

1.1 Overview 3

1.1.1 General information 3
1.1.2 Intended use 3
1.1.3 Glass requirements/fittings/mounting 3
1.1.4 Requirements for glass panel 3
1.1.5 Safety instructions 3
1.1.6 Symbols used - Safety/Installation 3
1.1.7 Maintenance, care, repair 3
1.1.8 Disposal 3

1.2 Pin diameter specifications 4

2 Installation instructions

2.1 Install narrow header for single or paired door: PT21/PT21M
2.2 Secure cover 5
2.3 PT21/PT21M adjustments 5

1 Technical specifications

1.1 Overview

These instructions are for installation of 1" and 1-1/4" headers for the following mounting and style versions:

1. Glass mounting

1.1.1 General information

• dormakaba requires use of tempered laminated or tempered monolithic glass.
• dormakaba glass hardware is not suitable for applications in rooms where chemicals (e.g. chlorine) are used such as indoor swimming pools, saunas, or salt-water pools.
• Do not swing doors with excessive force. Install limiting stop to prevent door from opening too far.

1.1.2 Intended use

• To house the PT21M overhead concealed pivot.

1.1.3 Glass requirements/fittings/mounting

• The substructure/wall must be able to bear permanent loads, be level (max. tolerance: 1/16" [2] per 39" [1m]).
• Fasteners must be sufficiently dimensioned for the substructure/wall and weight of the door.
• When adjusting glass elements, always stick to the required clearance for the respective hardware. Adjust clearance so glass does not come in contact with any hard surfaces such as glass, metal or concrete.
• Do not use excessive force when installing the glass (avoid over tightening screws.)

1.1.4 Requirements for glass panel

• dormakaba requires use of fully tempered glass, which complies with ASTM C 1036 and ASTM C 1048. Secondary heat soaking processes are recommended but not required. This applies to both tempered monolithic and tempered laminated glass.
• Clamping area must be flat and uncoated (no self-cleaning coating!)
• Never use glass with conchoidal fractures and/or damaged edges.

1.1.5 Safety instructions

• Installation requires two people.
- Only properly qualified and specially trained staff is authorized to mount dormakaba glass hardware.

• Due to crushing hazards and possible injury caused by breakage of glass during mounting, corresponding protective clothing (especially gloves and protective goggles) is required.
• Never clamp metal glass fitting hardware directly to glass surface.

1.1.6 Symbols used - Safety/Installation

CAUTION

Mounting components must meet the requirements of substructure/wall and door weight. Please read the technical information for fittings.

WARNING

Risk of breaking glass. When installing the door, support the door panel with a block of wood or similar object.

TIPS AND RECOMMENDATIONS

Universal PT21 pin diameter: 5/8" [15] MUNDUS PT21M pin diameter: 9/16" [14]

1.1.7 Maintenance, care, repair

• Immediately replace damaged parts.
  • Always use original dormakaba parts.
• Clean clamping area with alcohol-based standard commercial cleaning agent before mounting the glass hardware.
• Use a damp clothe for occasional cleaning.
  • Always use silicone - and oil-free cleaners (e.g. acetone).
• Check glass hardware at regular intervals for proper positioning, smooth operation and correct adjustment.
• High traffic door systems require inspection by properly qualified staff (specialized companies or installation firms.)

1.1.8 Disposal

Disposal in accordance with local, state and national regulations.

1.2 Pin diameter specifications

Fig. 1

2 Installation instructions

2.1 Install narrow header for single or paired door: PT21/PT21M

Fig. 2
NOTE: FOR PAIRED DOORS, REPEAT ALL STEPS FOR BOTH SIDES.

APPROXIMATE HOLE LOCATIONS

Pure electrical circuit lines without any symbols

2.1.1 Remove cover from narrow header channel.
2.1.2 Pre-drill holes for installation.
2.1.3 Secure header to overhead frame using appropriate fasteners dependent upon application.

NOTE: Always ensure the proper fasteners and adequate number of fixing points for your specific field conditions.

2.1.4 For paired door applications, follow steps 2.1.1 through 2.1.4.

2.2 Secure cover

Fig. 3

Technical line drawing of a mechanical component with a cylindrical base and a rectangular housing (no text or symbols)

NOTE: DOUBLE-SIDED TAPE IS PRE-ADHERED TO HEADER CHANNEL AND VERY STRONG.

BE SURE COVER DOES NOT CATCH EDGE OF TAPE, AS IT WILL BE DIFFICULT TO REMOVE IF PLACED IMPROPERLY.

2.2.1 Align cover accordingly.
2.2.2 Angle cover and press against side of channel (side A) opposite of double-sided tape.

2.2.3 Continue pressing and sliding cover upwards at an angle, ensuring cover-side B does not touch tape prematurely.
2.2.4 Once properly in place, press cover-side B firmly against tape.

2.3 PT21/PT21M adjustments

Fig. 4

2.3.1 Ensure pivot is plumb and level.
2.3.2 Raise walking beam pivot pin up completely by rotating pin adjustment screw.

2.3.3 Lower pin once door is properly in place.