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Detroit Radiant - Re-Verber-Ray
Re-Verber-Ray Video - Theory of Infrared Heating.
Price Noise Control
Price Video - Noise Control Fundamentals covers everything from the basics of noise control to specific noise control related HVAC considerations.
Greenheck Centrifugal Fan Disassembly
Greenheck - How to Disassemble A Centrifugal Single Wide (CSW) Quad Split
Gripple Seismic provides a complete solution from our on-site engineering services, to Gripple Seismic Cable Bracing Systems, to vibration isolation products such as spring mounts, isolators, hangers and pads.
Video: Gripple Seismic Solutions
Price - Air Moving Products
PDF - Specifying Sound Power Levels Instead Of Noise Criterion For Terminal Unit Application
Price - Single Duct Terminal Unit, Ceiling Plenum Installation
PDF - Tech Tip: Impact Of Ceiling Type On Terminal Unit Radiated Sound
Greenheck - Damper Installation Time Savings
Video: Damper Installation Time Savings
Understanding Fan Efficiency Grades
Incorporated into the 2013 release of ASHRAE Standard 90.1, are new fan efficiency Grades (FEG) as defined in AMCA 205. However, selecting a fan with the highest FEG doesn't always result in the "best" fan selection. This Greenheck FEG paper will help to explain the new AMCA 205 metric, along with Greenheck's recommendations for selecting the "best" fan for the job.
Energy Guide - Fan Efficiency Grades (FEG Ratings)
ASTM E477: A Common Loophole in Silencer Testing
Calculation of Insertion Losses
ASTM E477 Silencer Testing Loophole
Displacement Ventilation Diffuser Selection
Displacement Ventilation Diffuser Selection – ASHRAE 55-2004 Draft Ratio (DR) vs. Adjacent Zone (AZ)
Seismic Solutions for Fans
Greenheck Seismic Solutions Brochure
Video: OSHPD Shake Table Test of Greenheck 73" Centrifugal Fan
Terminal Units: How to Size Inlet Valves
Terminal Unit Sizing: Inlet Valves
Transfer Efficiency of Active Chilled Beams
Transfer Efficiency of Active chilled Beam Criteria