L22-393 R0 Page 7
TABLE OF CONTENTS
1 Notice .............................................................................................................................. 6
2 General ............................................................................................................................ 9
2.1 Serial Numbers ...................................................................................................................... 10
2.2 Safety Information ................................................................................................................ 11
2.2.1 Installation, Operating, and Service Personnel ................................................................. 11
2.3 Definitions............................................................................................................................. 11
2.3.1 Qualified and/or Authorized Operating Personnel ........................................................... 11
2.3.2 Qualified Installation Personnel ........................................................................................ 11
2.3.3 Qualified Service Personnel .............................................................................................. 12
2.4 Shipping Damage Claim Procedure ...................................................................................... 12
3 Theory of Operation ....................................................................................................... 12
3.1 The Heating System .............................................................................................................. 13
3.2 Hi-Limit System.................................................................................................................... 13
3.3 Auto Filtration Boards .......................................................................................................... 14
3.4 Thermostats ........................................................................................................................... 16
3.5 Fryer Sequence Operation ..................................................................................................... 16
3.6 Filter System (Manual Filtration Only) ................................................................................ 16
3.7 Basket Lift (Optional) ........................................................................................................... 17
3.8 Auto Top Off – ATO (Optional) ........................................................................................... 17
3.9 Automated Filtration (Optional) ........................................................................................... 18
4 Accessing Fryer for Servicing ........................................................................................ 19
4.1 Removing the Controller Front Panel Bezel ......................................................................... 20
4.2 Removing the Entrance Box Covers ..................................................................................... 21
4.3 Manual Operation of Drain and Return (Auto Filter Only) .................................................. 22
5 Removing the Entrance Box Wire Guard ....................................................................... 23
6 Blocked Drain (Auto Filter Only) .................................................................................... 24
6.1 Diagram Identifying Terminals for Second Resistance ........................................................ 25
6.2 Checking the Resistance of the DVI Switch ......................................................................... 25
6.3 Checking the Resistance of the Hi-Limit .............................................................................. 26
6.4 Checking the Resistance of the Probe ................................................................................... 27
7 Replacing the Relay Board and Paper .......................................................................... 28
8 Replacing Hi-limit Switch and/or Sensing Probe ............................................................ 30
9 Replacing Drain Valve with Actuator (Auto Filter Only) ................................................. 31
10 Replacing the DC Power Supply ................................................................................... 33
10.1 Replacing the DC Power Transformer Box .......................................................................... 34
11 Changing Filter Pump Actuator ...................................................................................... 35
12 Testing the Auto Top Off Probe (if equipped) ................................................................ 36
12.1 Replacing Oil Top off Probe ................................................................................................. 38
13 Replacing the Return Valve ........................................................................................... 39
14 Replacing the Basket Lift Components .......................................................................... 40
14.1 Removing the Basket Lift Cover .......................................................................................... 40
14.2 Replacing the Basket Lift Transformer ................................................................................. 40
14.3 Replacing the Basket Lift Driver Board ............................................................................... 41
14.4 Adjusting the Magnetic Sensor ............................................................................................. 42
14.5 Replacing the Basket Lift Actuator ....................................................................................... 42
FilterSystem..............................................................................................................44
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