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HVAC Troubleshooting Trainers
Video below:
Bob Bachman tells the story
A/C Electric Heat Model
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Heat Pump/Electric Heat Model
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The straight A/C Electric Heat Model (the original) is based on a 230V 1Ø Package Air Conditioner with 1 strip heat package.
Using a voltmeter only, the student troubleshoots the electrical problem or problems simulated by the simple push of a button or buttons in the back of the trainer. 
Front
Back
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The Heat Pump/Electric Heat Model is based on a 230V 1Ø Package Heat Pump with 1 strip heat package.
Using a voltmeter only the student troubleshoots the electrical problem or problems simulated by the simple push of a button or buttons in the back of the trainer. 
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