HYOSUNG MONiMAX5100T Operator's Manual page 26

Chapter3. For the beginning operator
3-6
Enter the current Shelved Mode combination (either 50-25-50 or a changed Shelved
Mode combination) by sequentially pressing those digits on the lock keypad. The
numbers will be displayed on the LCD as they are entered. When the combination
has been correctly entered, the LCD will read OPr, meaning "OPen right."
3. OPr  Retract Bolt
Turn the Dial to the right (CW) to retract the bolt
4. Open Door
5. Insert Change Key
Insert the change key into the change key socket on the back of the lock.
WARNING:
Do not close the door.
Leave the door open during this process until your are comfortable opening the lock
with the new combination.
6. Extend Bolt
Turn the Dial to the left (CCW) to extend the bolt.
7. Power Lock 
Turn the dial to the left (CCW) until
Enter Combination) is displayed.
 Press #8  EcF
8.
Press the "#" button followed by the "8" button. EcF (Enter current Factory
combination) will be displayed
9. EcF  Enter Current Shelved Mode Combination  EnF
Enter the current shelved mode combination, "EnF" (Enter new Factory combination)
will be displayed.
10. EnF  Enter New Combination  Cnf
Select and enter the new combination. "CnF" (confirm new Factory combination)
will be displayed
11. Cnf  Enter New Combination  POC
Enter new combination again to confirm. POC (Pull Out Change key) will be
displayed.
WARNING:
Record the new combination and store it in a secure place. If this combination is
lost or forgotten, there is no alternate way to open the lock.
12. POC  Remove Change Key  EOP
Remove the change key. EOP (End Operation) is displayed.
© Hyosung TNS Inc. All Rights Reserved.
(the Change Key symbol along with
Operator Manual