Packaged Conventional 2H2C - Board 20

	The title informs you of the equipment type and the number of stages that the unit has. 2H2C stands for 2 heat 2 cool.
	The The Help button opens this help page in a pop up window.
	The Hint Button sometimes provides clues such as might be given by the equipment owner.
	The Key Button opens a new window which provides the meaning of the acronyms used in the electrical schematic and the image buttons. Click this button for an example.
	The Note button opens an alert message to remind you how clicking V on the volt meter toggles the initial test point location for measuring the various voltages and phases. Click this button for an example.
	When you believe that you have correctly diagnosed the problem click the Submit Diagnosis button to open a new window where you may submit your diagnosis and find out if you are correct.
	The Test point 20 has been manually selected. Since the volt meter is measuring 24 VAC control voltage, it displays 24 VAC. (see note 9)
	Each schematic has test points which can be selected for electrical readings.
	The V button on the volt meter has been clicked multiple times so that it selects test point 7. This is the common test point for 24 VAC control voltage measurements.
	Test points are available for measuring the capacitance of start and run caps. Sometimes the test points are not immediately adjacent to the capacitor but they are always available nearby.
	The unit nameplate information provides electrical ratings for the equipment components.
	The exterior view of the unit can be swapped to show interior views and individual components. (see 13)
	These buttons change the images. In many cases the buttons are labeled with the keys used for the component. If you wished to see what the K13 relay looks like you could click the K13 button and the image will change to that relay. Here's a screen shot:
	The Capacitance meter is very easy to use. If the MFD button is clicked it will turn green to indicate that capacitance mode is active. The test points surrounding any capacitor on the schematic may be clicked and the meter will display the capacitance of that component. The test points that you select will also turn green for a helpful visual reference. You can leave the capacitance meter active and continue selecting other pairs of test points which will then become the green or selected test points.

The Volt/Ohm/Amp meter can be used in any of it's three modes.

  Amperage Mode

  Ohms Mode

  Voltage Mode

  Progress Chart