Probe Resistance Chart; Ato (Automatic Top-Off)/Manual Top-Off And Filtration Service Procedures - Frymaster FilterQuick easyTouch FQG60T Service Manual

1.18

Probe Resistance Chart

For use with FQG60-T fryers manufactured with Minco RTD probes only.
F OHMS C
60 1059 16 130
65 1070 18 135
70 1080 21 140
75 1091 24 145
80 1101 27 150
85 1112 29 155
90 1122 32 160
95 1133 35 165
100 1143 38 170
105 1154 41 175
110 1164 43 180
115 1174 46 185
120 1185 49 190
125 1195 52 195

1.19 ATO (Automatic Top-Off)/Manual Top-Off and Filtration Service Procedures

The automatic top-off system is activated when the oil level falls below the top sensor in the front of the frypot. The signal
is sent to the FIB (Filter Interface Board) which sends a signal to the VIB (Valve Interface Board) to engage the return
actuator to the frypot and turn on the ATO pump. The pump draws oil from the JIB (Jug In Box) through the rear return
manifold into the rear of the frypot. Once the oil level has satisfied the sensor, the pump turns off and the actuator closes.
The ATO function only operates when the vat is in idle state. If a cook, filter or other operation starts, the ATO function is
cancelled. Systems without ATO still use an ATO probe to detect low oil. The signal still follows the path of the ATO, but
the controller displays OIL LEVEL LOW, MANUALLY ADD OIL. Once oil is manually added pressing the orange button resets
the FIB board.
The FIB (Filter Interface Board) also oversees and controls filtration and bulk oil functions. It receives and sends data over
the CAN (Controller Area Network) to and from various sensors, boards and controllers. It activates the filtration cycle
sending information to the VIB (Valve Interface Board) boards controlling when actuators should open and close.
The FIB board is located inside the control box. The power for the FIB board, the filter pump relay and top off pump is
supplied from the 24VDC power supply from the transformer box. The 24VDC power supply also provides power, which
passes through the FIB board to the VIB board, to the rotary actuators. The power for the VIB board microprocessor is
supplied from the SIB.
The 24VAC transformer powers the fresh oil solenoid for bulk oil.
1.19.1 Auto Top Off Troubleshooting
Problem
Fryer tops off cold.
No power to FIB board
Probe Resistance Chart
F OHMS C F
1204 54 200
1216 57 205
1226 60 210
1237 63 215
1247 66 220
1258 68 225
1268 71 230
1278 74 235
1289 77 240
1299 79 245
1309 82 250
1320 85 255
1330 88 260
1340 91 265
Probable Causes
Incorrect setpoint.
A. J1 connection unplugged.
B. Power supply malfunction.
OHMS C F OHMS
1350 93 270 1493
1361 96 275 1503
1371 99 280 1514
1381 102 285 1524
1391 104 290 1534
1402 107 295 1544
1412 110 300 1554
1422 113 305 1564
1432 116 310 1574
1442 118 315 1584
1453 121 320 1594
1463 124 325 1604
1473 127 330 1614
1483 129 335 1624
Ensure setpoint is correct.
A. Check to ensure J1 on front of FIB board is fully locked
into connector.
B. Check that proper voltage is present at the power
supply. See table in section 1.19.4.
1-28
C F OHMS
132 340 1634
135 345 1644
138 350 1654
141 355 1664
143 360 1674
146 365 1684
149 370 1694
152 375 1704
154 380 1714
157 385 1724
160 390 1734
163 395 1744
166 400 1754
168 405 1764
Corrective Action
C
171
174
177
179
182
185
188
191
193
196
199
202
204
207