Accentra VISL SL8818-2FL Classroom Security Intruder Mortise Lockset – Grade 1 Security

Function Info: Latchbolt retracted by knob/lever unless outside knob/lever is locked by key. Deadbolt operated by key either side. When deadbolt is projected, outside knob/lever is automatically locked. Key retraction of latchbolt by either side unlocks outside knob/lever. Anti-panic operation. Operating inside knob/lever retracts the latchbolt and deadbolt simultaneously, with outside knob/lever remaining locked. Deadlocking latchbolt. Note: Indicator shows deadbolt position only.

The Accentra VISL SL8818-2FL (formerly Yale SL8800 Series) is the heavy-duty security version of the 8800 Classroom Security Intruder Lock Function mortise lockset, built for openings where heavy abuse or vandalism is a concern. It is certified to ANSI/BHMA A156.13 Series 1000, Operational Grade 1, and the SL8800 with its security escutcheon also meets Security Grade 1. It carries the Virginia (VISL) lever on the SL security escutcheon.

Built for openings that are opened and closed thousands of times a year, it uses a wrought steel, zinc dichromate plated case, 3/8" solid steel (heat treated) hubs and a 3/4" throw stainless steel anti-friction latchbolt. Supplied in 630 Satin Stainless Steel, it is field reversible and ships with the door prep and installation drawings for the trim shown.

The SL security escutcheon is what sets this lock apart: heavy duty escutcheon trim that is flat against the door to resist damage and vandalism; lever attached directly to escutcheon for added security; thrubolted security head screws offer added protection. The SL8800 is furnished in 630 Satin Stainless Steel only; levers are Nickel Plated to match Stainless Steel.

Function Details: Classroom Security Intruder Lock

• Outside Lever Works Until It Is Locked: Latchbolt retracted by knob/lever unless outside knob/lever is locked by key — the outside lever retracts the latchbolt normally, and stops the moment the lock is set against it.
• Deadbolt Keyed from Both Faces: Deadbolt operated by key either side — the key throws and withdraws the deadbolt from either side of the door.
• Projecting the Deadbolt Locks the Outside Lever: When deadbolt is projected, outside knob/lever is automatically locked — with the deadbolt thrown the outside lever is locked, so a single action secures both the bolt and the trim.
• Using the Key on the Latch Unlocks the Outside Lever: Key retraction of latchbolt by either side unlocks outside knob/lever — when the key is used to retract the latchbolt, from either side, the outside lever is left unlocked.
• Life-Safety Free Egress -- and the Outside Stays Locked: Anti-panic operation. Operating inside knob/lever retracts the latchbolt and deadbolt simultaneously, with outside knob/lever remaining locked. — the inside lever is never locked, so a single motion always gets a person out -- and on this function that same motion withdraws the deadbolt along with the latch, while the outside lever remains locked behind whoever left.
• Anti-Shim Protection: Deadlocking latchbolt — a small plunger beside the latchbolt rides the strike when the door closes; with it depressed the latchbolt cannot be shimmed back with a card.
• What the Indicator Reports: Note: Indicator shows deadbolt position only — where the indicator option is specified on this function, it reports the position of the deadbolt and nothing else.

Key Performance Features

• ANSI/BHMA Grade 1 Certified: Independently tested to the highest operational and security grade the standard defines, for long service life in demanding commercial and institutional openings.
• 3-Hour Fire Rating: UL and cUL listed for use on fire-rated door assemblies, so the opening stays code compliant.
• Accessible Operation: The lever is operable without tight grasping, pinching or wrist twisting, which is what ADA 404.2.7 requires of an accessible opening.
• Field Reversible: Furnished right hand and re-handed in the field, so one lock suits either door swing without a return.
• Anti-Friction Latchbolt: A stainless steel one-piece latch that closes quietly and resists the drag that wears a latch out on a high-traffic door.
• Heavy-Duty Hubs: Heat-treated solid steel through the point that takes every turn of the lever, which is where a lighter lock fails first.
• Mechanical Warranty: Backed for the long term against defects in the mechanical lock.

Technical Specifications & Compliance