How to Put on a Patented Ultramet Capacitor

The patented Ultramet capacitor is a universal replacement run capacitor manufactured by AmRad Engineering, a subsidiary of American Radionic Corporation. This oil-filled, motor capacitor, which features six built-in capacitance values that permit more than 200 single and dual-value combinations, is used widely in standard heating, ventilation and air conditioning (HVAC) applications. Installation of the Ultramet capacitor does not differ from installing any other run capacitor. As with any run capacitor, though, care should be taken to make sure the old capacitor has been completely discharged before touching it.

Screwdriver, flath-head or Phillips head, depending on the HVAC unit

Instructions

- 1
  Shut off power to the HVAC unit compressor in which the Ultramet will be installed, then access the inside of the compressor. Do this by using a screwdriver to remove the cover's retaining screws.
- 2
  Put on safety gloves and then place the metal tip of the screwdriver across the blades of the old capacitor to release any remaining charge.
- 3
  Remove the fan, common and Herm terminal insulators from the blades of the old capacitor, which will be located near the compressor fan. Write down which wires were connected to which insulators. Remove the insulators with the screwdriver.
- 4
  Connect the Herm, fan and common terminal insulators to the corresponding blades on the Ultramet capacitor using the screwdriver.
- 5
  Replace the compressor cover and restore power to the HVAC compressor.

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