1 / 27

Air Conditioning and Refrigeration B asics Don Gulliver February 9, 2013

Air Conditioning and Refrigeration B asics Don Gulliver February 9, 2013 . Introducing …. Yacht Systems Services, Inc . Systems Approach Marine electrical and electronics Corrosion control Sanitation systems Air conditioning and refrigeration

naif
Download Presentation

Air Conditioning and Refrigeration B asics Don Gulliver February 9, 2013

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. Air Conditioning and Refrigeration Basics Don Gulliver February 9, 2013

  2. Introducing … • Yacht Systems Services, Inc. • Systems Approach • Marine electrical and electronics • Corrosion control • Sanitation systems • Air conditioning and refrigeration • Industry-certified and factory trained staff • All technicians are ABYC certified • 14 years in business

  3. Introducing … • Don Gulliver • 30 years of experience in military, commercial and recreational marine systems (design, maintenance and repair) • ABYC certified Master Technician • Marine electrical • Marine air conditioning and refrigeration • Marine corrosion

  4. What is ABYC? • American Boat and Yacht Council • Writes the industry standards for construction and repair of recreational vessels. • Trains and certifies marine service professionals • Visit www.abycinc.org for certified technicians

  5. What we will cover • AC & Refrigeration Basics • Components • Theory • Application – installation/operation/maintenance • Troubleshooting

  6. Refrigeration • Components • Compressor • Condenser • Metering device (capillary tube) • Evaporator • Reefer/freezer box

  7. Refrigeration • Theory (only as much as a boat owner needs to know) • What is refrigeration? • Removal of heat • The refrigeration cycle

  8. Refrigeration • Installation • Power considerations • Amp-hour requirements • Battery sizing • Wiring • One step up on gauge size • Circuit protection device • Controls • Digital or analog

  9. Refrigeration • Installation • Condenser • Air to air • Water to air • Keel cooler • Ducting • Remove the heat!

  10. Refrigeration • Installation • Equipment locations • Compressor/condenser • Evaporator • Reefer/freezer box • Insulation • Openings • Air circulation • Linesets& Charging

  11. Refrigeration • Operation • Temperature settings • Refrigeration • Freezer

  12. Refrigeration • Operation • Monitoring run-time • Monitoring amp-hour usage • Improving performance • Box load • Seals • Circulation • Ice assist

  13. Refrigeration • Troubleshooting • Poor cooling performance • Can’t maintain temperature • Cools box intermittently • Compressor not running • Effects of Over/Under Charging • Uneven cooling in box

  14. Refrigeration • FAQ’s • Does frost inhibit cooling? • Cooling Load • Why does the box frost up? • Low pressure in the box • What to do if unit is not cooling normally? • Turn it off! • Is my system working at peak performance? • Instrumented tests

  15. Air Conditioning • What is air conditioning? • Modifying sensible temperature • Controlling humidity • Removing pollutants

  16. Air Conditioning • Components • The refrigerant loop • Compressor, condenser, capillary tube, evaporator • The seawater loop • Seacock, strainer, heat exchanger, discharge • Air flow • Blower, ducting, vents, filter

  17. Air Conditioning • Components • Electrical • Power • 120/240 • Amperage • Start Up demand • Controls • Analog • Digital

  18. Air Conditioning • Theory – Again, abbreviated explanation • The refrigeration cycle • Cooling – How it works • Removing humidity (latent heat) • Removing heat (sensible) • Heating – How it works • Electric strip heat • Use of reverse cycle heating

  19. Air Conditioning • Installation • Sizing system • “Sailboat” cool • “Sportfish” cool • Remote (split) or self contained system? • Noise • Space requirements

  20. Air Conditioning • Installation • Power • Amperage/wattage • 30A or 50A? • How does this affect the rest of the boat? • A/C with water heaters, microwaves, etc • Linesets & Charging • Self Contained • Remote (split) Systems

  21. Air Conditioning • Installation • Seawater • Materials and types of components • Seacock, strainer, heat exchanger, discharge • Air cooled or water cooled pump • No brass or cheap plastics • Location of components

  22. Air Conditioning • Installation • Ducting • Duct type • Size • Routing • Bends • Excesses • Restrictions • Condensate • Box or bilge?

  23. Air Conditioning • Operation • Monitor differential temperature • Run time • Set-point selection

  24. Air Conditioning • Maintenance • Keep it clean! • Strainer • Filter • Condensate pan • Condenser coil • Winterize • Seawater system • Condensate drain

  25. Air Conditioning • Troubleshooting • Circuit breaker trips • Unit is freezing up • Effects of Over/Under Charge • High pressure fault • Low pressure fault • Unit not cooling • Seawater pump not running • No water flow

  26. Questions? Don Gulliver (757) 422-9689 don@yssi.biz

More Related