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BIPH52/55-MPH52/55
SERIES GAS FRYERS
TABLE OF CONTENTS
CHAPTER 1: Service Procedures
1.1 Functional
Description ...................................................................................................... 1-1
1.1.1
The Electronic Ignition System .......................................................................... 1-1
1.1.2
Interface
Board ................................................................................................... 1-2
1.1.3
Thermostats ........................................................................................................ 1-4
1.2
Accessing Fryers for Servicing ......................................................................................... 1-4
1.3
Cleaning the Gas Valve Vent Tube ................................................................................... 1-5
1.4
Checking the Burner Manifold Gas Pressure .................................................................... 1-5
1.5
Measuring Flame Current.................................................................................................. 1-7
1.6
Replacing Fryer Components ............................................................................................ 1-7
1.6.1
Replacing the Controller or the Controller Wiring Harness............................... 1-7
1.6.2
Replacing the Temperature Probe or High-Limit Thermostat ........................... 1-8
1.6.3
Replacing the Interface Board ............................................................................ 1-9
1.6.4
Replacing an Ignition Module .......................................................................... 1-10
1.6.5
Replacing an Ignitor Assembly ........................................................................ 1-10
1.6.6
Replacing or Cleaning a Combustion Air Blower............................................ 1-11
1.6.7
Replacing a Gas Valve ..................................................................................... 1-14
1.6.8
Replacing a Burner Assembly .......................................................................... 1-15
1.6.9
Replacing the Filter Motor, Filter Pump, or Filter Pump Solenoid Valve ....... 1-16
1.6.10
Replacing
the
Frypot ........................................................................................ 1-17
1.6.11
Replacing Frypot Insulation and/or Upper Burner Rails.................................. 1-19
1.7
Troubleshooting and Problem Isolation .......................................................................... 1-25
1.7.1
Ignition
Failure ................................................................................................. 1-25
1.7.2
Improper Burner Function................................................................................ 1-26
1.7.3
Improper Temperature Control ........................................................................ 1-28
1.7.4
Computer
Malfunctions.................................................................................... 1-28
1.7.5
Filtration
Malfunctions..................................................................................... 1-29
1.7.6
Leakage ............................................................................................................ 1-30
1.8 Troubleshooting
Guides .................................................................................................. 1-31
1.8.1
Troubleshooting
the
24 VAC Circuit ............................................................... 1-33
1.8.2
Troubleshooting the Gas Valve ........................................................................ 1-35
1.8.3
Troubleshooting the Temperature Probe .......................................................... 1-35
1.9
Probe Resistance Chart.................................................................................................... 1-36
1.10 Principal Wiring Connections ......................................................................................... 1-37
1.11 Wiring
Diagrams ............................................................................................................. 1-38
1.11.1 Main.................................................................................................................. 1-38
1.11.2 Transformer / Filter Boxes ............................................................................... 1-39
1.11.2.1 MPH152/155 ................................................................................. 1-39
1.11.2.2 BIPH252/255 and 452/455 Domestic............................................ 1-40
1.11.2.3 BIPH252/255 and 452/455 International ...................................... 1-41
1.11.2.4 BIPH352/355 Domestic ................................................................ 1-42
1.11.2.5 BIPH352/355 International ........................................................... 1-39
Summary of Contents for BIPH52 Series
Page 28: ...1 21 Disassembling A Frypot Full Vat Illustrated Spacers Spacer 10 2 3 4 5 6 7 8 1 11 9 ...
Page 46: ...1 39 1 11 2 Transformer Filter Boxes 1 11 2 1 MPH152 155 Transformer Filter Box ...
Page 48: ...1 41 1 11 2 3 BIPH252 255 and 452 455 Transformer Filter Box International 8051340C ...
Page 50: ...1 43 1 11 2 5 BIPH352 355 Transformer Filter Box International ...
Page 66: ...2 13 2 4 2 Drain Valves and Associated Components ...
Page 68: ...2 15 2 4 3 Rear Flush Oil Return Line Components ...
Page 72: ...2 19 2 5 2 Transformer Boxes ...
Page 76: ...2 23 2 7 Frypots and Associated Components 2 7 1 Full Vat Frypot Components ...
Page 78: ...2 25 2 7 2 Dual Vat Frypot Components ...
Page 86: ...2 33 Transformer Box Cable Assemblies 1 2 3 4 5 6 7 8 9 10 11 ...