HVAC Duct Butter

When you decide to pick a HVAC college program, the first thing that you must ascertain is that your preferred choice of college you have chosen is an accredited one. This is an extremely important factor, as it means that the training program imparted will be at the required standard specified by HVAC organizations.

The most prominent accrediting agencies for HVAC training programs is the National Center for Construction Education and Research, the Partnership for Air-Conditioning, Heating, and Refrigeration, HVAC Excellence, North American Technician Excellence and Research, Environmental Protection Agency, and the Occupational Safety and Health Administration. You MUST select a college that has a minimum of at least one accreditation.

Smaller class sizes are also important, because then you will receive one on one help from the program teachers. The best colleges teaching HVAC courses will also have an on-campus science laboratory with modern equipment. Visit the campus and get a feel for the place, the teaching areas, the facilities available and talk to the faculty, if they are available. Also find out whether they allow any flexibility in time-managing classes for working students, and how you should go about researching financial aid, if you are eligible.

SuperSeal® Duct Butter and Edge Treatment products (refer to publication AHS-202). Uses Linacoustic RC is specifically designed for lining sheet metal Standard, or SMACNA HVAC Duct Construction Standard. All transverse edges,

SOLCOUSTIC ® duct liner is a non-˜brous, ˚exible, polyimide foam insulation developed speci˜cally for use as a thermal/ acoustic liner in HVAC plenums and rectangular metal duct systems. SOLCOUSTIC provides the acoustical performance coating or duct butter.

New York is no stranger to disaster, but after the tragic events of 9/11, the city proved it can rise above even the worst catastrophes. In the future, earthquakes, fires, blackouts, floods, and inclement weather are just some of the emergencies New Yorkers should be prepared to face, says the State Emergency Management Office (SEMO). While most of those disasters are practically unpreventable, they are easily prepared for.

Or SMACNA HVAC Duct Construction standards and the project specification. The products can be precision • Butter all raw exposed edges. • High in-duct air turbulence areas may require special procedures, i.e., perforated inner metal liner, etc.

Ductwork After studying this chapter, you will be able to: • Explain operation of the supply and return air duct systems. LJ Assemble, join, install, and repair all types of duct.

Residential Duct Systems Selection and Design of Ducted HVAC Systems Ronald K. Yingling, Donald F. Luebs, and Ralph J. Johnson

Duct Sealing • Existing research quantifies the importance of sealing ducts located in unconditioned spaces • Furnace or air handler and all ducts should be

ROUND FITTINGS S-1 for duct to duct (male) S-2 for fitting to fittting (female) COUPLING N-1 for duct N-2 for fittings END CAP B-1 BELLMOUTH CFT CONICAL FLAT TAP

HVAC DUCTS AND CASINGS 23 31 00 – 2 Mechanical Systems Guide Specification Metal and Flexible" and performance requirements and design criteria indicated in "Duct

Or SMACNA HVAC Duct Construction Standard and the project specification. The liner shall be cut and fitted to ensure adhesive to butter raw exposed liner edges. Final job site buttering may be required to coat duct cut-ins and/or minor

Duct Sealing A typical duct system can lose about 20% of conditioned air through leaks, holes, HVAC supply companies and on-line. UL listed foil tape: make sure it s U.L 181 approved. Apply to a clean surface with a plastic squeegee.

HVAC Duct Construction Standards, with the following exceptions: 1. All pins or mechanical fasteners shall have Tough Coat coating and duct butter (or equivalent) should be used to butter all fabrication cuts, including insulation panel seams. 4

Or SMACNA HVAC Duct Construction The liner shall be cut and fitted to ensure all joints are neatly and tightly butted with adhesive to butter raw exposed liner edges. Final job site buttering may be required to coat duct cut-ins and/or minor

ducts shall be in accordance with the SMACNA HVAC Duct Construction Standards, with the following exceptions: 1. All pins or mechanical fasteners shall have beveled Tough Coat coating and duct butter (or equivalent) should be used to butter all fabrication cuts, including