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graintech sound rating
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Answer
What is an STC rating?
Resolution:
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...:
What Steelcraft products have been tested in accordance with SDI's Acoustical Testing Standard #SDI 114?
Resolution:
SDI 114 is no longer published as an SDI performance standard. The new SDI standard for acoustical Performance is SDI 128-09Steelcraft does offer products that have been tested in accordance with S...:
Why would the horn sound when the solenoid tries to engage on a Von Duprin Chexit device?
Resolution:
Make sure the proper power supply (PS873 or PS914) and proper gauge and run wire is used for Chexit devices shipped prior to 8-24-2015 with solenoid driven. Related Solution: What wire&n...:
What is a Cam Lift Hinge?
Resolution:
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...:
The Hand Held Device (HHD) or Schlage Utility Software (SUS) will not connect to the CO200?
Resolution:
Make sure the HHD/SUS is set to USB communication by checking the small icon right of the "No Device Connected" message. The symbol should be a USB symbol when working with USB enable product...:
What would cause the Von Duprin delay egress Chexit device not to provide delay egress?
Resolution:
For Solenoid driven Chexit devices shipped from the factory prior to 8-24-2015, the following could cause the device not to provide delay egress:Measure the voltage between green and orange wires o...:
What would cause my Chexit to go into a weak alarm 10 seconds after arming it?
Resolution:
The following could cause the Chexit device shipped prior to 8-24-2015 with solenoid driven to go into weak alarm with solid LED light: Wrong power supply- Chexit device requires a...: