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Page 42

Wiring Diagrams

MD24 and MD30

6-3

#824820 - Revision A - December, 2013

Power Supply
cord 120V 60Hz

WHT

GRN

BLK

OVEN
THERMAL
CUT-OUT

COOLING
FAN
MOTOR

STIRRER

MOTOR

BRN

OVEN LAMP

ORG

BLK

SECONDARY
INTERLOCK
SWITCH

N.O.

N.C.

COM.

MONITOR

SWITCH

GRN

N.O.

COM.

STOP SWITCH

BLK

GRN

MAGNETRON
THERMAL
CUT-OUT

BLK

ORG

BRN

RED

WHT

CN201

BLK

WHT

ORG

RED

WHT

BLK

WHT

NOISE FILTER

BOARD

WHT

(LCD BOARD)

CNM

CNK

(SWITCHING POWER SUPPLY)

CN101

CN201

BLK

RED

CNC

RY1
N.O.

RY1
COM.

RY2
N.O.

RY2
COM.

WHT

CNA

GRY

WHT

ORG

RED

CN101

GRY

BRN

GRN

BLU

WHT

RED

CNN

ORG

WHT

CNH

WHT

BLU

WHT

RED

DC MOTOR

ORG

GRN

BLK

WHT

GRN

GRY

CN-H

CN-A

COM.

N.O

RY1

RY2

(POWER SUPPLY)

CN-F

COM.

N.O

TO DC
MOTOR

YLW

BLK

BRN

WHT

GRY

WHT

BLK

YLW

BLK

BRN

ORG

CN-N

CN-C

N.O

COM.

ORG

BRN

RED

THIRD
DOOR
SWITCH

BLK

RED

From PSU CN-H

(METAL KEY UNIT BOARD)

KEY BOARD
CONNECTION
CABLE

HIGH VOLTAGE

CAPACITOR

POWER

TRANSFORMER

MAGNETRON

HIGH VOLTAGE COMPONENTS

WHITE

ORANGE

RED

WHITE

RED

LCD BOARD
CONNECTION
CABLE

RIGHT SIDE

LEFT SIDE

NOTE:

RIGHT SIDE OF KEY UNIT BOARD HAS A NOISE FILTERING BOARD FOR SIGNAL. EARLIER KEY UNIT BOARDS HAD THE NOISE FILTERING

BOARD SHOWING AND LATER HAD THE FILTERING CAPS INCORPERATED INTO THE KEY UNIT BOARD.

MD WIRING DIAGRAM

Содержание Wolf MD24

Страница 1: ...neral Information 2 Installation Information 7 Controls Operation 10 Component Access Removal 17 Troubleshooting Guide 25 Wiring Diagrams 41 subzero com 800 222 7820 MD Microwave Drawers Service Manua...

Страница 2: ...any questions regarding the appli ance and or this manual please contact Wolf Appliance Inc ATTN Service Department P O Box 44988 Madison WI 53744 4988 Customer Assistance Phone 800 332 9513 Facsimile...

Страница 3: ...and Cautions 4 2 Microwave Measurement Procedure 4 3 Before Operating Oven after Service 4 3 Emergency Opening of Drawer 4 4 Un installing the Microwave Drawer 4 4 Removing Cord and Outer Case 4 4 Acc...

Страница 4: ...L PRODUCT warranty parts and labor NOTE This warranty only applies to products installed in test kitchens culinary and school kitchens and other installations which help promote Wolf Appliance product...

Страница 5: ...el and 10 programmable power levels Interactive display 99 minutes 99 seconds Oven drawer with window Control lock Oven light comes on when oven is operating or drawer is open Tight drawer seals with...

Страница 6: ...d that the cleaner be applied to a soft cloth and then carefully used on the stainless exterior rather than sprayed directly on to it Follow package directions carefully Front Side of Drawer Wipe the...

Страница 7: ...CODES DO NOT USE AN EXTENSION CORD IF POWER SUPPLY CORD IS TOO SHORT HAVE A QUALIFIED ELEC TRICIAN OR SERVICEMAN INSTALL AN OUTLET NEAR THE APPLIANCE Electrical Requirements This appliance must be gro...

Страница 8: ...he weight of the oven about 125 pounds 57 kg Check location where the Microwave Drawer will be installed for proper electrical supply Your oven can be built into a cabinet or wall by itself or under a...

Страница 9: ...rawer ovens require the same opening dimensions Dashed line represents profile of unit 14 3 4 375 OPENING HEIGHT ANTI TIP BLOCK W OPENING WIDTH TOP VIEW BASE SUPPORT 301 8 765 221 8 562 4 102 217 8 55...

Страница 10: ...SIGNAL An audible signal will chime with every touch and upon cook time and timer completion To Eliminate Audible signal 1 Touch SETTINGS twice 2 Touch START SOUND OFF will appear on the control panel...

Страница 11: ...store Cook Time Completion Reminder 1 Touch SETTINGS three times 2 Touch START REMIND SIGNAL ON will appear on control panel display DEMONSTRATION MODE Demonstration mode allows operation to be demons...

Страница 12: ...feature will keep food warm for up to 90 minutes To use Keep Warm 1 Touch KEEP WARM 2 Use number pads to enter desired keep warm time 3 Touch START 4 Touch STOP CLEAR to cancel POPCORN The popcorn fe...

Страница 13: ...ically adjusts cook time and power level To select Sensor Reheat 1 Touch SENSOR REHEAT 2 Touch START TIME ADJUSTMENT sensor cooking settings The time adjustment feature increases or decreases cook tim...

Страница 14: ...are de energized oven lamp remains on and digital read out displays time still remaining in cook cycle when door was opened 7 The monitor switch electrically monitors the operation of secondary interl...

Страница 15: ...d not be operated on sensor immediately after plugging in unit Wait two min utes before cooking on SENSOR 2 Coil of shut off relay RY 1 is energized but power transformer is not turned on 3 After abou...

Страница 16: ...MD24 and MD30 Theory of Operation 3 8 824820 Revision A November 2013...

Страница 17: ...ING 1 DISCONNECT POWER SUPPLY CORD OPEN DRAWER WAIT 60 SECONDS THEN DISCHARGE THE HIGH VOLTAGE CAPACITOR 2 DON T LET THE WIRE LEADS TOUCH TO THE FOLLOWING PARTS HIGH VOLTAGE PARTS MAGNETRON HIGH VOLTA...

Страница 18: ...portant not only to protect oven but also to insure that any leakage is measured accurately C Set the cooking control on Full Power Cooking Mode D Close drawer and select a cook cycle of several minut...

Страница 19: ...AC Cord attached and unplug AC Cord from molex See Figure 4 2 2 Extract eighteen 18 screws holding the Outer Case Side Angles and latch cover plates 3 Remove Outer Case See Figure 4 2 AC Cord Mount A...

Страница 20: ...g Monitor Stop and Secondary Interlock Switches 1 Follow Microwave Drawer disassembly as previously stated 2 Open drawer and keep it open 3 To discharge high voltage capacitor wait for 60 sec onds 4 I...

Страница 21: ...ve Drawer disassembly as previously stated 2 Open drawer and keep it open 3 To discharge high voltage capacitor wait for 60 sec onds 4 Remove two Drawer Support Covers from Choke Cover See Figure 4 8...

Страница 22: ...cing the Auto drawer Gear it will not be necessary to follow Microwave Drawer Disassembly 2 Turn Drawer up on its back and knockout Auto Drawer Gear hole cover See Figure 4 12 3 Unhook wiring connecto...

Страница 23: ...y interlock switch and monitor switch are operating properly 2 An approved microwave survey meter should be used to assure compliance with proper microwave radiation emission limitation standards 3 Dr...

Страница 24: ...Component Access MD24 and MD30 4 9 824820 Revision A November 2013...

Страница 25: ...er to the unit with outer cabinet case removed See CAUTION above In this event 1 Disconnect power supply cord and then remove outer cabinet case 2 Open door and block it open 3 Discharge high voltage...

Страница 26: ...er should sound and or time of day should appear in display Oven seems to be operating but little or no heat is produced in oven load Food incompletely cooked or not cooked at all at end of cook cycle...

Страница 27: ...ntrol Panel Assembly 1 Replace Control Panel Assembly Left side only keys not operating 1 Reseat keyboard connection cable between Left and Right keyboards Reseat Display Harness between right side ke...

Страница 28: ...t you have correct voltages at the PSU Drawer board and there is still no operation of one of the above items then perform a voltage check of RY1 RY2 RY3 and RY4 Relays These relays are operated by D...

Страница 29: ...ked PSU DRAWER BOARD FUSE IS OPEN To protect electronic circuits this model is provided with a non replaceable fuse on the PSU Drawer board 1 Fuse check and repairs Disconnect power supply cord Remove...

Страница 30: ...ng insulation tape After procedure re connect power supply cord Follow troubleshooting guide given below for repair COMPONENT TEST PROCEDURE LETTER E continued STEPS OCCURRENCE CAUSE OR CORRECTION 1 C...

Страница 31: ...s or cleaning solvents near oven while using Sensor settings Sensor will detect vapor given of by spray and turn off before food is properly cooked 8 If sensor has not detected vapor of the food ERROR...

Страница 32: ...ner on center of tray in oven cavity Close drawer Touch the TIMER CLOCK pad once POWER LEVEL pad twice and START pad once Touch number pad 1 once and number pad 4 once CPU Drawer board is in automatic...

Страница 33: ...um temperature is recorded 4 Subtract cold water temperature from hot water temperature The normal result should be 28 to 54 F 16 to 30 C rise in temperature If water tem peratures are accurately meas...

Страница 34: ...er supply cord 2 Open drawer and keep it open 3 To discharge high voltage capacitor wait for 60 seconds 4 Isolate switch and connect ohmmeter to the common COM and normally open NO terminal of switch...

Страница 35: ...monitor switch COM terminal and check continuity of monitor circuit 5 Reconnect all leads removed from components during testing 6 Reassemble unit 7 Reconnect power supply cord 8 Run oven and check al...

Страница 36: ...age coil should be approximately 90 ohms resistance of filament coil should be less than 1 ohm 5 Reconnect all leads removed from components during testing 6 Reassemble unit 7 Reconnect power supply c...

Страница 37: ...ading If a short is indicated in both directions or if an infinite resistance is read in both directions rectifier is probably defective and should be replaced 5 Reconnect all leads removed from compo...

Страница 38: ...n ohm meter Checking with a high ohm scale if high voltage capacitor is normal meter will indicate continuity for a short time and should indicate an open cir cuit once capacitor is charged If above i...

Страница 39: ...D24 and MD30 Troubleshooting Guide 5 16 824820 Revision A December 2013 Figure 5 6 CPU Drawer Board Front and Back Figure 5 7 SW PSU Drawer Board Monitor Fuse Monitor Fuse Figure 5 8 Noise Filter Boar...

Страница 40: ...Troubleshooting Guide MD24 and MD30 5 17 824820 Revision A December 2013...

Страница 41: ...R FUSE 20A CUT OUT THERMAL THERMAL OVEN MAG CUT OUT H N GRN NOISE FILTER GND TO SOURCE TO LOAD TO LOAD TO SOURCE FAN MOTOR SM FM OL A5 STIRRER MOTOR OVEN LAMP SECONDARY INTERLOCK SWITCH RY1 RY2 CAPACI...

Страница 42: ...2 3 4 5 6 7 WHT WHT 8 WHT WHT WHT WHT WHT WHT 1 2 3 4 5 6 7 WHT WHT WHT CNH 9 8 10 WHT WHT WHT WHT WHT WHT 1 2 3 4 5 BLU WHT RED DC MOTOR ORG GRN BLK WHT WHT GRN GRN GRN GRY CN H CN A COM N O RY1 RY2...

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