Repositioning / Rewiring Air Valves for 120V Model 690/390 fryers

Kit number

140049

Estimated Time

1 to 1.5 Hours

To avoid electrical shock or property damage, move the power switch to OFF and disconnect power.

Disconnect power from fryer.
Use a crosstip head screwdriver or cordless drill to remove the left side panel.
Remove red cap from solenoid and slide nameplate sideways to release the valve coil (green). A flat blade screwdriver may help.
Remove the spring around the barrel.
Unthread the barrel section of the valve from the nipple on the pump and set aside for reuse.
Use a crosstip head screwdriver, or cordless drill to remove the front control panel.
Disconnect the air solenoid leads, remove the conduit, and discard. Reuse the 90° conduit connectors on the valve and frame bracket.
Apply thread sealant to the nipple and attach ¼ NPT elbow. Apply thread sealant to both ends of 5” nipple and attach it to the elbow.
Thread the existing valve onto the nipple using the port labeled “2”. Mount 90° connector to new valve, along with new conduit .
Conduit may have to be formed by hand to mate with conduit on frame bracket.
Ensure the nipple is angled, to keep the valve positioned above the pump outlet.
Reconnect one air solenoid lead to wire #20 using wire nut and connect the other lead to wire #90 in the new harness provided.
Returning to the front controls, use a 5/16” socket or nutdriver to remove the nuts securing the left pump motor relay. Leave wires connected to relay and pull relay from studs.
Locate wire terminals and wiring harness in kit. Cut the wires as close to the relay terminals as possible, strip wires and crimp on new terminals, one set at a time.
Connect wires 16 and 17 with a blue terminal, 18 and 78 with a blue terminal, 21, 77, and 91 with a yellow terminal, and 8 with a red terminal.
Locate relay bracket in kit and place inside control panel area, lining-up the studs, with the holes in the bracket (large holes on top).
Use a 5/16” socket or nutdriver to secure the bracket to the unit with the nuts provided in the kit.
Connect wires to the relay.
Use a crosstip head screwdriver to secure the relay to the bracket with the screws provided in the kit.
Replace control panel and side panel and restore power to the fryer.
Unit is now ready for operation.