647 Chair Receptacles Troubleshooting

647 Chair Chair Receptacles

This illustration shows only the components that affect the chair receptacles. A detailed description of current flow also appears below.

Facility Supply Voltage

With the power cord properly connected, facility supply voltage, 115 VAC, is supplied to the power inlet.

Power Inlet

Current flows thru two fuses in the power inlet, to the isolation transformer.

Isolation Transformer

The isolation transformer separates the receptacles from the rest of the chair’s electrical system. This transformer is protected from overload by a thermal cutout feature. It will automatically reset when the transformer cools.

The isolation transformer provides 115 VAC to each of the chair receptacles.