Unlocking; Opening The Door; Emergency Operation - HomeMatic KeyMatic HM-Sec-Key Bedienungsanleitung

If the error is only a fault that occurs during normal operation (because of
temperature influence for example), the jam can possible be eliminated by
attempting the locking procedure again.
8.1.2

Unlocking

The following describes operation on the device. The same behavior applies for
operation with a remote control and with the Centre but a different letter/number is
shown on the display.
Press the button "Unlock" on the door lock drive (top button). "M" is shown
on the display.
After the procedure is completed, two short signal tones are emitted on the
door lock drive.
8.1.3

Opening the door

This function is only possible if the pressure of the door seals is sufficient
to press the door open slightly,after the door lock drive has retracted the
opening latch.
The function can only be used from a hand transmitter or from the Centre.
The door behaves as if the latch was pressed.
Press the "Open door" button on the remote control forapproximately one second.
Press the "Open door" button on the remote control. The LC display shows
the flashing symbol "Unlock", the door lock drive retracts the opener latch.
The normal pressure of the door seal against the door opens the door
slightly.
The drive is then moved back to the neutral position and thesymbol
"Unlock" stops flashing.
8.2

Emergency operation

We recommend that you use a lock cylinder with emergency and hazard
functionality (double cylinder). These locks allow locking and unlocking from
the outside or inside independent of the other.
With a standard lock cylinder, the door can no longer beunlocked from the outside if
a key is inserted inside. If a defect occurs or the batteries are too low, the door can
no longer be opened without damaging it!
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