PT21 - Uncategorized Dormakaba - Free user manual and instructions
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| 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.
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