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Using unlock key
Unlocking when power is interrupted
MCO-170MUVH or when an optional electric lock MCO-170EL is installed to the MCO-170MUV/170M,
outer door is locked with electric lock under a power outage. To unlock the outer door while the power is
interrupted, use the unlock key that is provided. To re-lock the outer door, turn the unlock key to the lock
direction while the outer door is open. Close the outer door after the out door is locked manually.
Note: The outer door cannot be locked by using the unlock key while the outer door is closed. Lock the
outer door while it is open. Attempting to turn the unlock key while the outer door is closed may damage
the electric lock system.
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