Magikitch'n MKG24 Technical & Service Manual Download

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Technical Service Manual

MKG Series Gas Griddles

L22-296 Rev 0 (4/08)

Page 3

TABLE OF CONTENTS

OVERVIEW...................................................................................................................................4

1.1

NTRODUCTION

.................................................................................................................................. 4

1.1.1

All models...............................................................................................................................................4

1.1.2

Snap Action Models ...............................................................................................................................4

1.1.3

Matchless Models...................................................................................................................................4

1.2

NSTALLATION

, O

PERATION AND

LEANING

........................................................................................ 4

1.3

PECIFICATIONS

............................................................................................................................... 4

1.3.1

Gas Information......................................................................................................................................4

1.3.2

Elevation Orifice Chart ...........................................................................................................................4

1.3.3

Electrical Information..............................................................................................................................4

THEORY OF OPERATION ....................................................................................................5

2.1

EATING

YSTEM

–S

NAP ACTION

ERIES

.......................................................................................... 5

2.2

EATING

YSTEM

–M

ATCHLESS IGNITION SERIES

(E / ST).................................................................. 5

2.3

EMPERATURE

ONTROL

YSTEMS

................................................................................................... 6

TEMPERATURE CALIBRATION ..........................................................................................6

3.1

TEMPERATURE MEASUREMENT

:.......................................................................................................... 6

3.2

CALIBRATION PROCEDURES

: .............................................................................................................. 6

3.2.1

Snap Action and Matchless (E) Series ...................................................................................................6

3.2.2

Matchless (ST) Series ............................................................................................................................7

COMPONENT CHECK & REPLACEMENT ..........................................................................7

4.1

ISASSEMBLY OF

RONT

ANELS

...................................................................................................... 7

4.1.1

Snap Action Series.................................................................................................................................7

4.1.2

Matchless Series (E & ST) .....................................................................................................................8

4.2

ILOT

/ I

GNITION

YSTEM

HECK

...................................................................................................... 9

4.2.1

Ignitor Check- Snap Action Series..........................................................................................................9

4.2.2

Spark Failure- Matchless (E & ST) Series..............................................................................................9

4.2.3

Insufficient or Absence of Flame: .........................................................................................................10

4.2.4

Pilot Lock-in: Snap Action Series .........................................................................................................10

4.2.5

Pilot Lock-in- Matchless Series (E & ST)..............................................................................................10

4.3

GNITION

ODULE

EPLACEMENT

.................................................................................................... 10

4.4

ILOT

SSEMBLY

EPLACEMENT

..................................................................................................... 11

4.5

URNER

DJUSTMENTS

................................................................................................................... 11

4.6

RIFICE

UEL

YPE

ONVERSION

................................................................................................... 12

4.6.1

Changing Burner Orifice.......................................................................................................................12

4.7

AIN

URNER

EPLACEMENT

......................................................................................................... 12

4.8

RESSURE

DJUSTMENT

......................................................................................................... 13

4.9

EMPERATURE

ONTROLS

HECK

................................................................................................... 14

4.9.1

Snap-Action Models .............................................................................................................................14

4.9.2

Matchless “E” Models...........................................................................................................................14

4.9.3

Matchless “ST” Models.........................................................................................................................14

4.9.4

Temperature Probe Check: ..................................................................................................................15

4.9.5

Resistance Chart: Solid State Thermistor Probe ..................................................................................15

4.10

EMPERATURE CONTROL REPLACEMENT

.......................................................................................... 15

4.10.1

Snap Action Models .............................................................................................................................15

4.10.2

Matchless “E” Models...........................................................................................................................16

4.10.3

Matchless “ST” Models.........................................................................................................................16

4.10.4

Thermistor Probe Replacement............................................................................................................17

4.11

AFETY

ALVE

EPLACEMENT

........................................................................................................ 17

4.12

OLENOID

ALVE

EPLACEMENT

-.................................................................................................... 17

TROUBLESHOOTING GUIDE.............................................................................................19

5.1

ROUBLESHOOT

UIDE

-S

NAP

CTION

ODELS

............................................................................... 19

5.2

ROUBLESHOOT

UIDE

- E / ST S

ERIES

.......................................................................................... 20

5.3

CHEMATIC

: M

ATCHLESS

“E” S

ERIES

.............................................................................................. 21

5.4

CHEMATIC

: M

ATCHLESS

“ST” S

ERIES

............................................................................................ 22

5.5

CHEMATIC

: M

ATCHLESS

INGLE

OWER

WITCH

“E” S

ERIES

......................................................... 23

5.6

CHEMATIC

: M

ATCHLESS

INGLE

OWER

WITCH

“ST” S

ERIES

....................................................... 24

Summary of Contents for MKG24

Page 1: ...ual for the life of the equipment Model ___________________________ Serial ___________________________ Date Purchased ____________________ ENGLISH Models MKG24 MKG36 MKG48 MKG60 MKG72 All Options Buil...

Page 2: ...k disconnect must comply with ANSI Z24 41 WARNING DO NOT alter or remove structural material on the appliance to accommodate placement under a ventilation hood WARNING This appliance is intended for p...

Page 3: ...4 2 3 Insufficient or Absence of Flame 10 4 2 4 Pilot Lock in Snap Action Series 10 4 2 5 Pilot Lock in Matchless Series E ST 10 4 3 IGNITION MODULE REPLACEMENT 10 4 4 PILOT ASSEMBLY REPLACEMENT 11 4...

Page 4: ...ns and grease chute options Suffix E models have flame proving spark ignition systems and electro mechanical thermostats External power supply is required Suffix ST models have flame proving spark ign...

Page 5: ...C and controlled by the gas regulator D mounted in the back of the unit See Photo 1a 2 2 HEATING SYSTEM MATCHLESS IGNITION SERIES E ST Start up of Unit See Photo s 2 and 2a Open the shut off valve C P...

Page 6: ...inserted into a hole at the end of the slot 3 Temperature Calibration Each temperature control operates a twelve 12 inch zone Each zone consists of two burners except for zones containing a left or r...

Page 7: ...e the knob Once the retaining nut is loose pull straight out on the knob to insure that the knob can move freely on the shaft Align the white indicator line with the average temperature of the corresp...

Page 8: ...mpartment See Photo 12 Pull lower panel away from front of appliance this will give access to the gas valves ignition modules and temperature controls To remove the upper switch panel remove the 10 se...

Page 9: ...el with insulated pliers and depress the red button of the Piezo ignitor Check for a visible spark to the panel See Photo 15 If no spark is produced replacement of the Piezo ignitor may be required To...

Page 10: ...o 41 from the safety valve and measure the output between the contact and ground Open circuit output should be greater than 15mv closed circuit should be greater than 8mv thermocouple connected Note T...

Page 11: ...ter B opening can cause incomplete combustion or yellow flames at the burner ports See Photo 22 To align the burner manifold D loosen or tighten manifold Bracket screws E until the manifold orifices a...

Page 12: ...ke care to not damage the brass fittings or pipe threads See Photo 24 Prior to installing the new orifices insure that the fittings are not clogged and reapply thread sealant to all male threads where...

Page 13: ...ain that the end of the burner B is located on the indexing pin A of the burner mounting plate See Photo 28 Re install the remaining screws runner tube and sheet metal in reverse order Insure that all...

Page 14: ...d operation of the contacts as follows Remove lower front panel refer to Section 4 1 2 Light pilots refer to Section 2 2 when pilots are lit turn all thermostats to the Off position Using a voltmeter...

Page 15: ...ove wire connections E from the Solid State temperature control See Photo 33 Using a multi meter check the probe resistance against the cooking surface temperature Use the Resistance Chart in Section...

Page 16: ...wire terminals B C from the thermostat with needle nose pliers or other adequate tool Photo 31 Pull the thermostat knob off the thermostat shaft Remove the thermostat from the mounting bracket by rem...

Page 17: ...1 SAFETY VALVE REPLACEMENT Snap Action Models If the test criteria from Section 4 2 4 have been met but the appliance does not operate properly replacement of the Safety valve may be required Shut off...

Page 18: ...mounting screw s that secure the assembly to the framework of the cabinet There is one screw above and below the solenoids See Photo 44 Disconnect all piping and fittings from the inlet A and outlet...

Page 19: ...2 Faulty gas connection 3 Manual shut off closed 4 Defective Safety valve 1 Check that all gas connections are turned On verify gas pressure at the regulator 2 Verify that all connections are fully En...

Page 20: ...ify internal ground connection Replace power cord if ungrounded Pilot will not stop sparking 1 No gas to pilot burner 2 Spark gap incorrect 3 Spark leakage 4 Un grounded power cord 1 Check pilot solen...

Page 21: ...ON OFF RIGHT MODULE IGNITION ORG L1 K1 IM1 K3 J P1 3 ORG S1B MAIN VALVE J P1 5 W RED BGND HV GRN Y MV1 RIGHT PILOT VALVE PV1 L2 V2 L2 YEL WHT PV1 115V 50 60Hz NEMA 5 15P PP10439 BRN 4A BLK 3 PILOT OK...

Page 22: ...HEAT CONTROL TEMP TC1 5 4 NO 7 COM 6 S2B TP2 WHT R 3 MV1 J P1 1 VIOL ORG 4 5 ON OFF RIGHT MODULE IGNITION TP1 ORG L1 K1 IM1 K3 J P1 3 ORG S1B MAIN VALVE J P1 5 W RED BGND HV GRN Y MV1 RIGHT PILOT VAL...

Page 23: ...VIOL VIOL J P1 5 WHT BLU S1 4 5 BRN J P4 1 BLU MODULE J P1 1 IGNITION IM1 W RED WHT MAIN VALVE MV1 RIGHT GRN Y PILOT VALVE J P1 4 WHT L2 V2 L2 ON OFF R 3 BLU WHT TC1 CONTROL TEMP K3 L1 MV1 HEAT ORG G...

Page 24: ...L NEXT PAIR BGND HV ORG BLU TC2 TEMP CONTROL J P4 6 HEAT VIOL VIOL J P1 5 WHT BLU S1 4 5 BRN J P4 1 BLU MODULE J P1 1 IGNITION IM1 W RED WHT MAIN VALVE MV1 RIGHT GRN Y PILOT VALVE J P1 4 WHT L2 V2 L2...

Page 25: ...Trouble Shooting Guide MKG Series Gas Griddles L22 296 Rev 0 4 08 Page 25 Notes...

Page 26: ...684 World Wide Website Address www magikitchn com In the event of problems with or questions about your equipment please contact the MagiKitch n Authorized Service and Parts representative ASAP coveri...

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