NH-2700
4. Operating Instructions
4.1 Opening and Closing the Door
4.1.1 How to open the security door
4) Use the reverse order of above description to close the security cover and door.
1) Turn the security cover key clockwise to open the
security cover.
Security Cover Key
2) Unlock the dial lock referring to "4.1.2 How to open
the dial lock".
Dial Lock
3) Turn the security door handle counterclockwise, then
pull the security door to open it.
Security Door Handle
4 - 2
4. Operating Instructions