Published at Monday, March 25th, 2019 - 13:33:55 PM. wiring. By Georgitte Lecomte.
This book provides HVAC/R service technicians with exceptionally practical information on the unique wiring diagrams, methods, technician short-cuts, and potential pitfalls encountered on the job. It begins with a discussion of general electricity and electrical circuits, and then moves quickly into explaining wiring diagrams for HVAC and refrigeration systems, and the new devices that are encountered with each new diagram. It features accessible, technician-levelexplanations of electronics. KEY TOPICS: Electrical Concepts. Simple Currents. Standing Pilot Furnaces. Heating/Air Conditioning Circuits. Troubleshooting Strategies. Testing and Replacing Common Devices. Repair Strategies. Commercial Systems. Motor Applications. Power Wiring. Testing and Replacing Motors and Start Relays. How Motors Work. Low-Voltage Room Thermostats. Electronic Ignition Gas-Fired Furnaces. Oil Heat. Electric Heat. Boilers. Heat Pump. Ice Makers. Miscellaneous Devices and Accessories. Wiring Techniques. DDC Controllers.MARKET: For HVAC/R service technicians. Well-known industry author and instructor Jim Johnson is offering a new video for technicians who want to sharpen their troubleshooting skills.”This HVAC training video program, is available in DVD format, is somewhat of a departure from what we’ve offered in the past,” said Johnson. ”It was produced specifically for technicians who really don’t need theory on electrical fundamentals, but want to know more about how to read schematic diagrams and then use them to track down the source of the problem in an HVAC/R system that’s down.” According to Johnson, ”Using Schematics To Troubleshoot HVAC/R Electrical Circuits, Part 1” came about because of feedback from the industry. ”It’s shorter than our fundamentals training videos, and the Technician’s Resource Guide contains only the diagrams and a short introduction of fill-in-the-blank information It doesn’t incorporate review questions and in-depth theory like our fundamentals programs do.”
But you can also choose a more radical configuration. For instance, how about a very small 6800 pF silver mica cap for the bridge pickup—thus converting the bridge tone pot into a “warmth control” that will yield a super-sharp, contoured solo sound—in combination with a 0.033 µF paper-in-oil cap for the neck pickup. The latter would let you dial in deep, classic jazz tones or a warm rhythm sound. You can have a lot of fun experimenting to find a combination that works best for you. Another benefit of this wiring is its “preset” function. You can dial in two completely different tones, as in the example above, and engage either with only a flip of the 3-way pickup selector switch.
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