1 / 102

HVACR115 – Mechanical for Gas Heat

HVACR115 – Mechanical for Gas Heat. Sheet Metal Installation. http://www.youtube.com/watch?v=LJbFUM0Lnnw. Sheet Metal Tools. Sheet Metal Hammer. Tin Snips Right Hand: Red Handle-cuts left Left Hand: Green Handle-cuts right.

omana
Download Presentation

HVACR115 – Mechanical for Gas Heat

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. HVACR115 – Mechanical for Gas Heat Sheet Metal Installation

  2. http://www.youtube.com/watch?v=LJbFUM0Lnnw

  3. Sheet Metal Tools • Sheet Metal Hammer

  4. Tin Snips • Right Hand: Red Handle-cuts left • Left Hand: Green Handle-cuts right

  5. Crimpers: Turns the end of metal pipe or fittings into a crimped male end for connecting.

  6. http://www.youtube.com/watch?v=uH5wRVVmgh8

  7. Notchers: Used to notch corners of rectangular ductwork before bending.

  8. Folding Bar: Makes 1” bends for flanges or ½” “ears” for connecting ducts with drive cleats

  9. Hand Seamers: Makes ¼” to 1” bends

  10. Bulldog Snips: Makes straight cuts of large sections of sheet metal

  11. Duct Stretchers: Brings the “ears” of two ducts closer together in order to connect drive cleat.

  12. Scratch Awl: Makes well defined lines in sheet metal when laying out fittings.

  13. Adjustable Dividers (Scribers, Compass): Used to scribe radius angles on sheet metal.

  14. Common method of connecting rectangular sheet metal ducts: • Using drive cleats and S-slip. • S-slip or S-locks slide over horizontal edges of one piece of rectangular duct. • Vertical edges are folded back ½” to form “ears. • Horizontal edges of second piece of duct are slipped into s-lock • Drive cleats are hammered onto the two sets of ears.

  15. Drive Cleat

  16. http://www.youtube.com/watch?v=WF8JZ1t_nm4

  17. Hole Cutter: Make precise hole in sheet metal

  18. http://www.thisoldhouse.com/toh/video/0,,20504377,00.html

  19. Flex duct cutter: Has knife for slicing flex membrane and insulation, and pliers for cutting spiraled wire. Comes with sheath. • Hint: Never cut wire with tin snips.

  20. Flex strap tightener

  21. Turbo shears: Can be electric or air powered for fast cuts

  22. Stapler: Used to wrap insulation around duct.

  23. Small tape measure for measuring radius, circumference.

  24. Sheet Metal Fabrication Machinery • Pittsburg (Lockformer) Machine: • One side of a piece of sheet metal is run through machine and formed to receive a ¼” edge on opposite side. • Flat sheet is bent into rectangle shape, • Pittsburg is opened slightly with screwdriver, • ¼” edge is inserted, • Pittsburg is hammered over, locking into place.

  25. http://www.youtube.com/watch?v=n8GLOFkOxjM&feature=related

  26. http://www.youtube.com/watch?v=-p4P4qoXMzQ

  27. http://www.ronhazelton.com/projects/replacing_a_central_air_conditioning_systemhttp://www.ronhazelton.com/projects/replacing_a_central_air_conditioning_system

  28. Break: Used to bend sheet metal. • Can be 8’ for shop, • Or 4’ to transport to job for furnace replacements. • Counter weighted for ease of operation. • Never place hand between upper leaf and bending leaf.

  29. Shear: Used to slice sheet metal. • Can be pneumatic with foot pedal, • Or operated with foot lever.

More Related