Manuals / Middleby Marshall / Kitchen Appliance / Oven

Middleby Marshall Schematics, Section, Wiring Diagram, G208-24050/60 GO, PS520G

Models: PS520G

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Wiring Diagram, G208-240 50/60 GO, PS520G

					LS 1
			RFI		RH PANEL
			RFI
	TB1		FILTER	COM 2	NO 2
				COM 2	NO 2
	L3	104	102
	L3		N
	104	105
	L2		G
	103	103	101	COM 1	NO 1
	103	103	L	COM 1	NO 1
	L1		L

GAS

VALVE

IGNITION

	LS 2
	BACK PANEL
4	COM 2	NO 2
4
3	COM 1	NO 1

LS 3

LH PANEL

		COM 2	NO 2	CB2 3A
	6	COM 2	NO 2	8
	6			8
	5	COM 1	NO 1	7
				CB1 3A

211

105

E	MAIN	210

GROUND

12

E

MODULE

GV1

TH 339

GV2

213GV1

GV1

212GV2

GV2

GRD 230

SPARK

IGNITOR

SENSOR

17

42

82

80

	15
	HIGH LIMIT
	44
L1	NC
	COM
L2
	19
RESET	NO

COOLING

FAN

M	BLOWER
M	MOTOR	CONTACTOR
	UPPER
				11
	57	2T1	1L1
				20
	48	4T2	3L2
				22
	59	6T3	5L3	13
	62	14NO	13NO	15
	42	A2	A1
			C1

24

CONVEYOR
CONTROLLER
	8
DIP	7
	6
SWITCH	5
SETTINGS	4
	3

ON	2	OFF
	1
+ 5V

SPEED

DISPLAY

MODULE

CONV MOTOR

RPM PICK-UP

41

IGNITION

E

GROUND

XFMR2 PRIMARY 240V 50/60 Hz

SECONDARY 24V 65VA

307

		RED	-
		RED	TC
TC1			TC
TC1		WHI	+GRD
		WHI	TC
			TC
230
	GRD		14

240

339

X1 LOAD X2

H1 LINE H2

208

206

315

317

	40	MOTOR
	40	LOWER
		LOWER

	TC3			TC2
GRD	RED	WHI	GRD	RED	WHI

M	39
	202
	303
	26

	TEMPERATURE
	CONTROLLER				31
					31
WHI	8	9	33	3	4	39
RED	7	10	37

26

40

28

19

31

H4X1

H2

H3

H1X2

XFMR1

PRIMARY 240/280V

50/60 Hz

			COUNT
			COM
		CONV SW
			NC
51	3	4	53
			AC
			AC
			+ ARM
		46	- ARM
			- ARM

GRD

10

12

RED

WHI

BLK

RED
	BLK

CB3

91 0.3A

84

GRD

2-POLE MAGNET

DC CONV MOTOR

303

NC

311

NO

COM

305

307

AIR SWITCH

309

2 4 3 0

202

204

4

XFMR3

3PRIMARY 240V 50/60 Hz SECONDARY 24V 25VA

HEAT	SWITCH	204	6	12	228	MODULATING
HEAT	SWITCH	204

			16
18
SIGNAL
AMPLIFIER
6	+	4-20MA	79
		4-20MA
		INPUT
5	-	INPUT
5	-

28

GRD

6
5
4
L2	35
L2

L1

GRD

BLOWER

11SWITCH

12
13
14
+ 15	79
- 16	68

SECONDARY 120V

200VA

RELAY

6 8 7 1

208

311 313

			VALVE
	5	11	400
319	LINE	LOAD	401
319	LINE	LOAD	333
	2	8
317	1	7	335

214		68
	+
4		0-20VDC

215OUTPUT

3-

228

2

24VAC

337INPUT

1

10

CB3 1A

Wiring Diagram, G208-240 50/60 GO, PS520G

59113C

ELECTRICAL
SCHEMATICS	SECTION 6

Image 45

Middleby Marshall installation manual Schematics, Section, Wiring Diagram, G208-24050/60 GO, PS520G

Contents

owners operating & installationmanual MiddlebyGASOLINE OR OTHER FLAMMABLE VAPORS AND FOR YOUR SAFETY, DO NOT STORE OR USELIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCEMIDDLEBY MARSHALL NO QUIBBLE LIMITED WARRANTYU.S.A. ONLY TABLE OF CONTENTS TABLE OF CONTENTSContinued I.MODEL IDENTIFICATION SECTION DESCRIPTIONFigure 1-1.Single PS520 Oven Figure 1-2.Double PS520 OvenSERIES PS520 ELECTRICAL SPECIFICATIONS PS520 SERIES OVEN SPECIFICATIONSand are also located inside the oven at the bottom of the Control PanelII. COMPONENT FUNCTION Figure Figure 1-4. PS520-SeriesOven Components LocationsBlower Assembly Right Control Box II. COMPONENT FUNCTIONFigure 1-5.Machinery Compartment Components A. Conveyor Motor and Conveyor BeltFigure 1-6.Cooling Fan SECTION DESCRIPTIONF2. Blank Plates SECTION 2 INSTALLATION SECTION INSTALLATION•Perform a gas leak test •Test for correct air supplyINSTALLATION KIT PARTS LIST FOR SERIES PS520 GAS OVENI. UNLOADING Single Stack OvenDouble Stack Oven PARTS LIST FOR SERIES PS520 Gas OVENTriple Stack Oven INSTALLATION KIT4.00 101.6mm Figure 2-5.MODEL PS520 SINGLE OVEN DIMENSIONS1to 3-3/4inch maximum in 1/2 inch increments Figure 2-6.MODEL PS520 DOUBLE OVEN DIMENSIONS4.00 101.6mm1to 3-3/4inch maximum in 1/2 inch increments Figure 2-7.MODEL 520 TRIPLE OVEN DIMENSIONSFOR PS520-SERIESOVENS UTILITY ROUGH-INDIMENSIONS AND POSITIONINGII. VENTILATION GUIDELINES Figure 2-9.Typical PS520-SeriesOvens InstallationIV. ELECTRIC SUPPLY FOR GAS HEATED OVENS Figure 2-11.Junction Connection BoxFigure 2-10.Typical Electric Oven Data Plate V. GAS SUPPLY Figure 2-13- Gas Control Valve SECTION OPERATION I. CONTROL FUNCTIONSFigure 3-1. PS520-SeriesOven Control Functions B. Blower Switch A. Door Safety SwitchC. Heat Switch D. Temperature ControllerFigure 3-3.Conveyor Speed Digital Control MEASURING CONVEYOR SPEEDFigure 3-4.Product at entrance end of baking chamber – BEGINNING OF TIMINGA. Startup Procedures Daily Startup III. STEP-BY-STEPOPERATIONPower Failure B. Shutdown ProcedureFigure 3-6.Control Panel SECTION OPERATIONA.Daily Startup Procedure IV. NORMAL OPERATION - STEP-BY-STEPB.DAILYSHUTDOWNPROCEDURE wait + forSECTION 3 OPERATION SYMPTOM V. QUICK REFERENCE: TROUBLESHOOTINGPROBLEM SOLUTIONSECTION MAINTENANCE SECTION MAINTENANCENOTICE Figure 4-2.Conveyor Belt and Crumb Pan Cleaning I. MAINTENANCE - DAILYFigure 4-1.Oven Cooling Fans A. ExteriorPRECAUTIONS II. MAINTENANCE - MONTHLYA. Removing Conveyor From Oven For Cleaning FigureFigure Figure Figure Figure6. Remove conveyor as shown T1 T2 T3 B1 B2 B3 B. Air Fingers Disassembly For CleaningStandard Fingers FigureFigure C. Reassembly of Air FingersFigure 4-12.Standard Lower Finger Figure 4-13.Standard Upper FingerFigure FigureFigure D. Reinstall End Plugs 2. Reinstall conveyorFigure Figure Figure E. Conveyor Reassembly Into OvenFigure Figure F. Checking Conveyor Belt TensionFigure FigureFigure Figure FigureFigure FigureFigure Figure FigureIV. MAINTENANCE - EVERY 6 MONTHS III. MAINTENANCE - EVERY 3 MONTHSIMPORTANT NOTICES FigureKEY SPARE PARTS KIT PS520-SERIESGAS OVEN KEY SPARE PARTS KIT FigureFigure PROBLEM PRODUCTS ARE OVERCOOKED OR UNDERCOOKED SECTION TROUBLESHOOTINGPROBLEM PROBLEM OVEN DOES NOT HEATSECTION TROUBLESHOOTING NOTESSCHEMATICS Wiring Diagram, G208-24050/60 GO, PS520GSECTION SECTION ELECTRICAL SCHEMATICS NOTESNOTES SECTION ELECTRICAL SCHEMATICSNOTICE NOTICENOTICE