Simplified Wiring Guide for R, Y1, Y2 Terminals
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There are several different types of ductless heating and cooling systems. These systems can be combined with various indoor and outdoor unit combinations. The indoor units can be controlled by a hand held remote, wired thermostat, or a 24v interface. Verifying all the right components of your ductless system before installation can save a lot of time and avoid confusion.
You can get on HVAC PARTNERS online to verify indoor and outdoor unit compatibility as well as thermostat compatibility for your indoor units. When you pull up your unit on HVAC PARTNERS you can find the compatibility chart under documents in the technical literature tab. The chart will show you all of the thermostat compatibility for all of the high wall, cassette, ducted, console, and air handler style indoor units.
Having all of the right components for your ductless system will lead to an easier install and customer satisfaction. Running back and forth trying to gather the right parts for your ductless system can be time consuming and could make your customer uneasy about the product. It’s a good practice to hold on to the install manuals that come with your ductless system to help clear up most of the install questions. If the manuals are lost or misplaced you can find the manuals for your product online at hvacpartners.com






Disclaimer: The technical statements, information and recommendations contained herein are believed to be accurate as of the date hereof, but Mingledorff’s does not make representations or warranties, express or implied, as to its accuracy, its completeness, or the results to be obtained. The information is being provided for informational purposes only and is intended for use by persons having adequate skill and expertise regarding the proper selection, use and application of the products and recommendations and at their own risk and discretion.
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HVAC technicians often work in attics, rooftops, mechanical rooms, and outdoor environments where temperatures can become dangerously high. Proper hydration
Have you ever installed or started up a commercial heat pump? Did you notice there is not an “O” terminal
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