HVAC 144 - Sheetmetal III

Credits: 3
Instructional Contact Hours: 3

Continuation of Sheetmetal Layout II. Emphasis placed on the layout and construction of patterns found in the industrial plant. Special projects will be assigned. Credit may be earned in either HVAC 144 or SKMT 173 but not both.

Prerequisite(s): HVAC 143 or SKMT 172
Corequisite(s): None
Lecture Hours: 20 Lab Hours: 25
Meets MTA Requirement: None
Pass/NoCredit: No

Outcomes and Objectives

Evaluate progress of SKMT 172 to find at what point to continue with SKMT 173 . Class will start (will vary) at instructor's discretion.
1. Rectangular Fittings - transitions and offsets with square to rounds.
2. Round Fittings - tapers and tess on tapers.
3. Irregular Fittings - round branches
Identify sheet metal fittings and which type of development is required for layout.
1. Parallel line development.
2. Triangulation.
3. Radial line development.
Learn different types of connections for round and rectangular fittings and how they are assembled for installation.
1. Drives and SS’s.
2. Companion flanges.
3. Ductmate - Nexux.
Learn how fittings (round and rectangular) are put together to get from point A to point B.
1. Throw of angled fittings.
2. Pythagorean Theorem.
3. Offset lengths of any given angle.
4. Roll of any angle and stretch outs of heels, throats and turning vanes.