Middleby Marshall Model PS536 Service Manual download pdf (Page 3)

III. High Li mi t C ontrol Module ........................................................... 45

A. Part Number Reference - High Limit Control Modules ...... 45

B. Location .............................................................................. 45

C. Troubleshooting .................................................................. 45

D. Appendices.........................................................................46

 Instructions for Service Kit 39733 -

High Limit Conversion Kit for PS300, 310,

350 & 360 Ovens, 5/99 ..............................................46

IV. Thermocouples ........................................................................... 54

A. Part Number Reference - Thermocouples ........................54

B. Thermocouple Functions ....................................................54

C. Troubleshooting .................................................................. 54

D. Appendices.........................................................................56

 Instructions for Service Kits 33984 and 33985 -

Oven Thermocouple Kit, 11/01 .................................56

V. Blowers ....................................................................................68

A. PS200-series ovens...........................................................68

B. PS360-series ovens...........................................................74

C. PS555/570-series ovens ...................................................76

VI. Blower Motor Centrifugal Safety Switch (PS360-series) ....... 80

A. Part Number Reference - Blower Centrifugal Switch ...... 80

B. Troubleshooting .................................................................. 80

VII. Burner Blower Motor Centrifugal Safety Switch (PS200-

series gas, PS310, PS314, PS360, PS360WB, PS570S) .........80

VIII. Air Pressure Safety Switch (PS200-series, PS555/570-

series, PS360EWB, PS360WB70) .............................................81

A. Part Number Reference - Air Switches ............................81

B. Troubleshooting .................................................................. 82

C. Appendices.........................................................................83

 Instructions for Service Kits 35624 and 35625 -

Air Pressure Switch Replacement Kits, 1/97 ..........83

 Instructions to Replace an Alternate Air Switch

P/N 36194 with Service Kit P/N 35624, 3/97 ...........85

IX. PS570/570S Flame Gate .............................................................87

A. Part Number Reference - Flame Gate ............................... 87

B. Flame Gate Orientation ....................................................... 87

X. Gas Train and Burner System ...................................................88

A. Part Number Reference - Gas Train Components............88

B. Part Number Reference - Gas Orifices and Gas

Conversion Kits .................................................................. 91

C. Component Identification ....................................................92

D. Pilot/Ignitor Assembly ..........................................................93

E. Burner Blower Motor ..........................................................95

F. Air Shutter ........................................................................... 95

G. Burner Transformer ........................................................... 96

H. Burner Motor Relay ............................................................ 96

I. High Flame Solenoid Valve .................................................96

J. Bypass (Low Flame) Orifice ............................................. 96

K. Modulating Gas Valve .........................................................97

L. Amplifier Board ................................................................... 97

M. Combination Gas Control Valve .........................................98

N. Ignition Module ....................................................................99

O. Gas Conversion Kits ....................................................... 100

P. Burner and Gas Train Troubleshooting .......................... 100

Q. Checking the Gas Pressures .......................................... 102

TABLE OF CONTENTS (continued)

R. Troubleshooting Flowcharts ........................................... 103

 Intermittent Pilot System Troubleshooting Table 103

 No Spark, System Does Not Work ........................ 104

 Spark is Present, Pilot Will Not Light ................... 105

 Pilot Lights, Main Valve Will Not Come On ......... 106

S. Appendices ...................................................................... 107

 Instructions for Service Kit 42810-0117 -

Pilot/Ignitor Kit, 7/91 ............................................... 107

 Instructions for Service Kit 30185 - Pilot Tee, 3/94 . 108

 Instructions for Service Kit 42810-0121 -

Combination Gas Valve, 1/92 ................................ 112

 Instructions for Service Kit 42810-0114 -

Ignition Module, 11/90 ............................................. 116

 Position of Combination Gas Valve Components

during Burner Operation, 4/02 ................................ 118

 Instructions for All Gas Conversion Kits

for Ovens with Wayne Burner, Natural Gas to

Propane, 8/00 ........................................................... 119

 Instructions for All Gas Conversion Kits

for Ovens with Wayne Burner, Propane to

Natural Gas, 8/00 ................................................... 125

 Instructions for Service Kit 36856 - Gas

Conversion Kit for PS360EWB/WB70 with

Midco Burner, Natural Gas to Propane, 1/98 ....... 131

 Instructions for Service Kit 36863 - Gas

Conversion Kit for PS360EWB/WB70 with

Midco Burner, Propane to Natural Gas, 1/98 ....... 135

 Equivalent Orifice Sizes at High Altitudes, 4/02 . 139

XI. Electric Oven Heating System ................................................ 140

A. PS200-series ovens ........................................................ 140

B. PS310/360-series ovens ................................................ 142

C. PS555 ovens.................................................................... 144

D. Electric Oven Mercury Contactor Replacement ............ 146

Section 4 - Electrical Wiring Diagrams ............................................ 149

I. Component Wiring .................................................................... 149

A. Temperature Controllers .................................................. 149

B. Ignition Modules ............................................................... 150

II. PS200-series Ovens ............................................................... 151

III. P S310/360-series Ovens ........................................................ 160

IV. PS555/570-series Ovens ........................................................ 166

Section 5 - Reference ..................................................................... 172

 25-point preventative maintenance checklist....................... 172

 Fractional inches to decimal and millimeter equivalents ... 173

 Decimal equivalents of drill sizes......................................... 173

 General conversion factors ................................................... 174

 Pressure conversions ............................................................ 174

 Pressure conversion chart..................................................... 175

 Ohms Law equation wheel .................................................... 175

 Common electrical wiring diagram symbols ........................ 176

1 2 3 4 5 6 7 8 ... 22 23

Comments to this Manuals

No comments

Middleby Marshall Model PS536 Service Manual Page 3

Comments to this Manuals

Related products and manuals for Ovens Middleby Marshall Model PS536