PFE 590 and 591 Electronic Control Retrofit Computron 7000 to New Electronic Controls

Installation should be preformed only by a qualified service technician.

Disconnect power from unit.

Remove 2 screws from the control panel.

Lift panel up and out.

Unplug the 9-pin connector and the probe connection at the control board.

Remove control from unit.

Remove 2 screws from the right side panel and pull side panel from unit.

Remove the retaining clip from the top of the solenoid (Remove screw if necessary) coil housing and remove the cover.

Pull the coil housing from solenoid.

Remove the coil from the housing and replace with the low voltage coil supplied in the kit. Ensure to replace the spacers from the old coil onto the new coil.

Label remove and element wires from both the mercury and standard contactors.

Pull wires from contactor coils and discard.

Remove or cut remaining wires to 9-pin connector and remove 9-pin connector from unit.

Install the low voltage mercury and standard CONTROLS AND contactors, provided in the kit. Ensure the arrow on COMPONENTS mercury contactor is pointed in the proper direction.

Connect wires to the contactors, making sure the element wires are placed in the proper locations.

Use a crosstip head screwdriver to remove the 2 screws from the left side panel and pull side panel from unit.

Install transformer provided in the kit to the control area. Use stud and nut already in place.

Locate and cut the wires to the filter switch and high limit about 10 inches from the component.

Discard any other wires in wire nuts.

Locate the wire harness with the 6-pin red connector.

1. Connect the yellow wires to the high limit wires usng wire nuts. If too long, cut to appropriate length.

   

2. Connect the white wires to the filter switch wires using wire nuts.

Install spade terminals onto the pressure solenoid wires if crimpers are available. If not, leave as is and use wire nuts in the next step.

Locate the wire harness with the 12 pin red connector.

1. Connect the pressure solenoid wires to the red wires in positions 1 & 2 of the 12 pin connector.

2. Connect the yellow wires in position 6 & 7 of the 12-pin connector to the coil of the Primary (right) Contactor.

3. Connect the blue wires in positions 11 & 12 of the 12 pin connector to the coil of Secondary (left) Contactor.

Next step depends on the voltage of the fryer.

For 208-240 Volt fryers:

1. Locate the wire harness with the 3-pin white connector and plug the two wires onto the side terminals of the 15 amp fuse holders.

2. Locate the 2 wires with 90-degree blue connectors and place these on the center terminals of the fuse holders. Place the other end of the wires on L1 & L2 terminals of the primary (right) contactor.

For 400 volt fryers.

1. Locate the wire harness with the 3-pin white connector and plug one wire onto the side terminals of the 15 amp fuse holder or to wire #11 (CE units). Connect the other wire of the 3-pin connector to wire #3 using a wire nut. Refer to original wiring diagram.

2. Using one of the wires with 90-degree blue connectors, place it on the center terminal of the fuse holder. Place the other end of the wire on L1 of the primary (right) contactor.

For 480 volt fryers.

1. Locate the wire harness with the 3-pin white connector and connect the two wires to wires #1 and #3 from the step-down transformer. Refer to original wiring diagram

Locate the harness with the 2-pin white connector that has only one wire.

Install a spade connector on the portable filter receptacle wire that was cut from the 9-pin connector and connect it to the harness (If crimpers aren’t available use a wire nut).

Locate the wire harness with a white 12-pin box connector on one end and plug it into the transformer connector.

Ensure to plug the connector onto the correct voltage connector from the transformer.

Wire tie the wires to keep them from interfering with the components, except for the probe wire.

Plug in all connectors, including the probe and new transformer harness into the back of the control.

Using the self-tapping screws, provided in the kit, secure the controls to the unit, and the

unit is now ready for use.