Replacing A Vib (Valve Interface Board) Board; Replacing A Rotary Actuator; Float Switch - Frymaster FilterQuick FQG80T Service Manual

1.22.3 Replacing a VIB (Valve Interface Board)
Disconnect the fryer from the electrical power supply. Locate the VIB (valve interface board) to be replaced under a frypot. Mark
and unplug the location of the harnesses. The VIB assembly is held in place with one screw (see Figure 50). Remove the screw and
the assembly drops down (see Figure 51) and the tab slides out of the bracket attached to the frypot (see Figure 52). Reverse steps
to reassemble, ensuring that the new VIB assembly slides into the slot in the bracket. Once complete, CYCLE POWER TO ENTIRE
FRYER SYSTEM. See section 1.20.2 to reset control power. Check software version # and if necessary, update the software. If a
software update is necessary, follow the instructions to update the software in section 1.24.
Figure 50 Figure 51 Figure 52

1.22.4 Replacing a Rotary Actuator

Disconnect the fryer from the electrical power supply. Locate the actuator to be replaced and mark and unplug the actuator. The
actuators are held in place by two Allen screws. Loosen the Allen screws. Remove the actuator from the valve stem. Align the
actuator with the valve stem and attach the new actuator. Tighten the two Allen screws. Reconnect power and test the actuator.
NOTE: Rotary actuators have two different part numbers which are also color coded (blue and black), which are mirror images of
each other that correspond to their mounting position.

1.22.5 Float Switch

The float switch is a safety device that is used to prevent operation of the burners when the oil
level is low (see Figure 53). The float switch moves up and down a rod to detect the oil level in
the frypot. When the oil level is low, it opens the circuit that has the 24VDC power from the VIB
board to the time delay relay board, turning off the gas valve. The time delay relay board is in
the control box next to the Smart Interface Board (SIB) (see Figure 54). The 24VDC to the FIB
board is supplied from the power supply in the transformer box. It travels from J2 on the FIB
board to J4 on the VIB board. The time delay relay coil is controlled by the 24VDC from the VIB
board on J1 pins 9 and 10. The contacts closure of the time delay relay board is detected on pin
6 of the time delay relay board and pin 5 provides the
Figure 53
ground.
Figure 54
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