Honeywell Terminal Board F50F Front Contact for 20 x 20

Terminal Board - 4 Variations

The 4 different variations of these contacts are the same except for different wire lengths and spade connectors.

The wires on the 203329A and 203329C have a female spade connector that also has a piggy back male connector.

The wires on the 203329B and 203329D just have female spade connectors.

Photo below shows the piggy back connection.

Cell Contains 3 Contacts but Only 2 Used

You may have noticed there are 3 contacts on the cell pad but only two contacts at the power box. This allows the F50-F300 to be installed with either right or left air flow. The cell can be rotated allowing an installation with opposite air flow.

Only two contacts are used, the center contact and one end contact. Photo animation shows when the cell is rotated, the contacts maintain the correct connections.

The center contact powers the ionizing wires. The two outside contacts are connected and power the collector plates.