How do I use the ventilation lock feature?

Smarter Windows and Doors

Most Smarter single hung and double hung windows have ventilation locks on the top sash vertical rails.

To tilt a window in for cleaning

  • Since they are spring-loaded, simply push in against the lock and slide upwards.
  • The lock will protrude out as pressure is taken off.
  • Once the lock has been extended, raise the bottom sash until it catches the ventilation lock.
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