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von duprin pressure
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Question
Answer
What is the minimum and maximum PSI applied to a 4800 operator?
Resolution:
The pneumatic operators are designed to function with an input air pressure to the 7901/7902 Series control box of 80 (min) 100 (max) PSI, and an output pressure of 60 to 80 PSI to the pneumatic (2...:
What can be done for a door that will not close against wind pressure?
Resolution:
To correctly answer this question, we need to know how much more force is required to get the door closed. They could try turning the Rod & Shoe over (short side of shoe towards the hinge), or ...:
Does LCN sell a coupler to stack two 4040XP closers together?
Resolution:
LCN does not recommend this type of installation, and has never sold a coupler to do this.:
What door meets FBC / NOA Zone 4 requirements?
Resolution:
H-Series doors in single leaf applications with only mortise locks meet the FBC / NOA Zone 4 requirements?3070 max flushOutswing & Inswing applicationsZone 4 requires 120 to 170 psf.:
How do I get a Size 1 (ADA) closer to close against air pressure?
Resolution:
If an Size 1 (ADA) closer is set to 5 lbs. opening force, it will only have about 3 lbs. (60/70%) closing force. If the closer will not close against air pressure, but the ADA requirements have to ...:
Why is a 5100 electric strike clicking but not locking?
Resolution:
Follow the steps below to troubleshoot the problem. Measure the voltage at the electric strike. If the strike is FSE and not locking there should be no voltage at the strike and if it is FS there ...:
What is the LCN fluid - "Liquid X" - temperature range?
Resolution:
The LCN closer fluid "Liquid X" will perform without variation between: -30° F to +120° F - for manual closers. +35° F to +120° F - for electrical closers and a...:
What exit device is weather rated?
Resolution:
The Von Duprin 98/99 rim and 98/9927 surface vertical rod exit devices are now available with the Outdoor Defense (OUT) option.Devices with the OUT option have a specialized coating applied to mech...:
What astragals are available?
Resolution:
Types of astragal offered from Steelcraft are as follows: "Z" Astragal - For information on "Z" astragal types and attachment refer to the TD Manual page 3.3.17. Most commonly used on double ...:
SEVERE WEATHER
Resolution:
Tornado Resistant, Hurricane Resistant:
Does Falcon have a breakaway lever trim feature on mortise locks?
Resolution:
The MA lock does not have Vandlgard or a breakaway trim feature, however, the lever spindle on the MA lock will shear if too much force is applied in order to prevent internal lock damage and resis...:
What is power boost on a Benchmark operator?
Resolution:
Power Boost is a positive latching feature that increases the latch force, to over come building stack pressure or door weather stripping, etc, if the door stops before coming compl...:
Where can I find hurricane ratings for Schlage and Falcon?
Resolution:
There are several Schlage and/or Falcon locks that have been tested and approved for this application. For Commercial use the locks have been tested and approved as ...:
What is the difference between the L-Series and H-Series doors?
Resolution:
The L-Series doors are designed for virtually all construction requirements in commercial building applications. They have also been tested and approved for uniform wind load per ASTM E330. ...:
What is UBC 7-2?
Resolution:
The UBC (Uniform Building Code) was a regional legacy building code which was superseded in most jurisdictions by the IBC (International Building Code). There may be some areas of the country which...:
What is a mechanical Lock?
Resolution:
A lock is any device which prevents access or use by requiring special knowledge or equipment. Mechanical locks are mechanical devices which secure an opening by keeping a door closed until a rel...:
Does Steelcraft offer a Kerf Frame feature?
Resolution:
A Kerfed Frame is a frame that is formed with an optional integral pocket or recess in the area of the stop to receive gasket, seals or weather stripping.Kerfed frames are available as an ...: