steelcraft sound doors

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Steelcraft have tested different types of doors and frame assemblies using Zero International gasket seals for the various STC ratings. Tests are in accordance to ASTM...
Frames can be installed either KD (knock down) or welded to receive the STC rating.
Steelcraft borrowed light frames are not listed/tested. Check with the glass manufacture if they are listed and with what type of framing used.
Sound seals are required. Zero International Gasket Notes: Perimeter Seals – Zero #475 applies to the stop of the head and jambs. Door bottom – Zero #367, surface applied. Threshold ...
 Cam Lift Hinges are specially designed hinges used mainly on acoustical door assemblies. The Cam Lift Hinge lifts the door during its travel and seats the door bottom for a pos...
STC stands for Sound Transmission Class. An STC (Sound Transmission Class) is a single number rating system derived from measured values of sound transmission loss in accordance with ASTM E90 and...
Followings are the reason for 98/99 exit alarm ALK not sound when push bar is activated. Make sure key switch on exit alarm ALK is turned on, wait for 20 seconds before you activating the pushba...
The following may cause the ALK to go into alarm: Make sure red and blue wires on the RX switch are connected to the exit alarm ALK terminal block and yellow wire is taped off. Check the red an...
Check that the reader is fully seated into the front escutcheon.
Check that there are no bent pins in the reader connector.
Check that the through door ribbon cable is properly plugged in.
Check that the battery or wired power is properly connected.
Check that the batteries are inserted into the battery holder in the correct polarity orientation.
Chexit devices shipped with motor after 8-24-2015. 1. When Chexit device is set for more than zero second rearm time (factory setting is 10 second rearm time) and device goes into alarm immediatel...
Chexit devices shipped with solenoid prior to 8-24-2015. 1.  When Chexit device  is set for more than zero second rearm time (factory setting is 10 second rearm time) and device goes...