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Garland moisture+ MPGD10D, Service Manual

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Garland moisture+ MPGD10D Service Manual Download Page 54

Part # MPSM07 (03/24/08)

Page 54

TESTING & TROUBLESHOOTING

Direct Spark Ignition Detail

MPO Direct Spark Ignition Specifications and Module Box Connections

Manufacturer

JOHNSON CONTROLS INC .

Vendor Part #

G760BAD-1

Ignition Type

Direct Spark

High Voltage Cable Wire

Stranded

Ignition Source

High Voltage Spark

Maximum Cable Length

48” (1,220mm)

Flame Detection Means

Flame Rectification

Flame Detection Types

Remote Sensing

Minimum Flame Current 

0 .3 Microampere

Flame Failure  

Response Time 

0 .8 Seconds Maximum

Spark Gap

0 .1” (2 .5mm)

Ignition Retrials

3

Safety Times

4 Seconds

Waiting Times

0 Seconds

Interpurge

30 Seconds

Loss Of Flame Signal Retrials

4 (Five Total Ignition Attempts)

Operation Current

24 VAC, 50/60 HZ, Nominal, 0 .2A 

N Main Valve

Contact Rating (MV)

2A Continuous, 5A Inrush

Ambient Operating And 

Storage Fluttered

-40 to 158 °F (-40 to 70°C)

Humidity

95% RH non-condensing

Wire Connections  

Spark Options

RAJAH Connector

GROUND

5

LED

THS 2

M.V. 3

SENSE 4

Summary of Contents for moisture+ MPGD10D

Page 1: ...number defaced obliterated or removed or which has been modified or repaired using unauthorized parts or by unauthorized service agents For a list of authorized service agents please refer to the Gar...

Page 2: ...Part MPSM07 03 24 08 Page...

Page 3: ...3 Problems Solutions 34 Cleaning 35 Maintenance 36 Motor Care 36 Water System 36 Replacement Parts 37 Section Two Service 39 Component Identification 40 Moisture Control 40 Cavity Temperature Controls...

Page 4: ...Part MPSM07 03 24 08 Page...

Page 5: ...Part MPSM07 03 24 08 Page 5 Section One Operation Installation Manual...

Page 6: ...the oven interior during cleaning Garland long known for offering the best baking convection ovens available adds the moisture to its model line to provide you the user with a workhorse oven that will...

Page 7: ...813mm 58 5 1486mm 26 1 2 673mm FLOOR LINE 40 1015mm ADD 4 102mm FOR DEEP OVENS 32 3 4 832mm DOOR OPENING REQUIRED 32 813mm 32 813mm 70 1 4 1784mm 5 1 2 140mm 6 1 4 159mm SINGLE DECK GAS SUPPLY 3 4 NPT...

Page 8: ...ach leg or in the top plate of double stack casters will match the bolt locations at each corner of the oven base You will need four 3 8 16 x 1 hex head bolts and four 3 8 flat washers to mount each l...

Page 9: ...r with a brake is at the front of the oven Fasten the remaining two corners of the open base panel to the other two legs just installed 6 Carefully return the oven to an upright position Ensure the tw...

Page 10: ...s 6 If they are not already fastened together assemble the two parts of the interconnecting flue channel included in the stacking kit using six 10 x 3 4 sheet metal screws 7 Fit the channel assembly o...

Page 11: ...eter and pressure will supply the oven with no more than a 1 2 water column pressure drop Note When checking the gas pressure make sure all other appliances on the same gas line are turned on A pressu...

Page 12: ...r the power supply cord is required The installer must supply a cord bushing that meets local and national codes For 120VAC usage a cord and NEMA 5 15P plug is provided Garland recommends a separate 1...

Page 13: ...s less than 60 parts per million total alkalinity less than 20 parts per million silica less than 13 parts per million chlorine less than 30 parts per million and a pH Factor greater than 7 5 Consult...

Page 14: ...oven INSTALLATION OF A DIRECT VENT When the installation of a canopy hood is impossible the oven may be direct vented Before direct venting check you local codes on ventilation in the absence of local...

Page 15: ...WC for natural gas or 10 WC for propane gas GAS MODEL TESTING LIGHTING INSTRUCTIONS After the correct pressure has been verified turn off the oven and remove the pressure gauge from the manifold pres...

Page 16: ...PM by pressing the switch downward to LO Power Switch The right rocker switch This main control switch has three positions The center position is OFF This shuts off electrical power to all functional...

Page 17: ...s mode Optimal cool down will be achieved with the door open slightly If the door is opened too wide the motor and fan will shut off This is a safety feature When the door is partially closed again th...

Page 18: ...a hold cycle it will display HOLD Refer to the section entitled DISPLAY MESSAGES on page 23 for additional information regarding display messages and related button sequenced On Off Pressing this key...

Page 19: ...or life Cook Hold Pressing this key activates the Hold feature At the end of the cooking cycle the oven will continue to idle at the programmed HOLD temperature holding the oven s contents at the desi...

Page 20: ...e or in combination traditional manual or cook hold with or without a core probe with or without moisture Refer to the section entitled DISPLAY MESSAGES on page 23 for additional information regarding...

Page 21: ...from the oven immediately The fan and heat will continue in idle mode If the alarm is not canceled after sounding continuously for 10 seconds it will sound a short tone once every 15 seconds until th...

Page 22: ...the desired Hold temperature Enter a number between 140 and 300 factory default is 160 If a number outside this range is entered the control will sound an error tone and reset to the closest allowable...

Page 23: ...display of 00 30 00 8 Press the Y Enter key This stores and implements the Profile 1 Cook time setting The display will indicate PROGRAM PROF1 MOISTURE Press the N Scroll key repeatedly to step throu...

Page 24: ...old cycle was not programmed when the time programmed for the final profile of the active recipe has expired the display will indicate DONE and an audible alarm will sound continuously for 10 seconds...

Page 25: ...TER SHELF Press the numeric key 1 6 corresponding to the shelf loaded Press the Start Cancel key to engage the timer countdown for the selected shelf 3 Repeat Step 2 up to five times while loading the...

Page 26: ...using Cook N Hold this display will be shown prompting the user to program the temperature for the oven cavity while in the HOLD mode When the oven has achieved the programmed temperature and is idli...

Page 27: ...e The word PROBE in the upper right hand corner replaces the clock to indicate the cook cycle is being controlled by the probe The word HEAT in the lower right hand corner will cycle on and off with t...

Page 28: ...the next profile Press the N key to finish programming this key When you have programmed all the profiles needed for the recipe the last step is to indicate if you want to go into hold mode at the en...

Page 29: ...Moisture cannot be injected manually when the fan is running in Pulse mode Automatic Injection The programmable control features four pre programmed moisture settings Bread Meat Poultry and Fish When...

Page 30: ...ets 8 Oz 10 Per Tray 300 F High 15 Min Fish 60 Fish Sticks 350 F High 15 Min Fish 60 Hamburger Patties Frozen 6 Oz 12 Per Tray 350 F High 16 Min Meat 55 Hamburger Patties Pre Cooked 350 F High 10 Min...

Page 31: ...aked 350 F High 11 Min Bread Max Moisture for First Few Min Of Bake Then No Moisture Bread Italian Calabrese 342 gr 375 F High 14 Min Bread Max Moisture for First Few Min Of Bake Then No Moisture Croi...

Page 32: ...ing When cooking with six pans use rack positions 2 4 6 8 10 and 12 starting from the top Do not overload the oven Six pans are suggested for most items i e cakes cookies rolls etc However the maximum...

Page 33: ...emperature inside the oven Verify the cavity temperature using a pyrometer 4 Press and hold the PHANTOM button for three 3 seconds The display will show the Actual Temperature on the first line and Se...

Page 34: ...ripples Overloading pans or batter is too thin If cakes are too coarse Lower oven temperature If pies have uneven color Reduce number of pie per rack or eliminate use of bake pans If cupcakes crack on...

Page 35: ...nt which could damage electrical components Interior Cleaning Establish a regular cleaning schedule or wipe off spills on the same day they occur Cool down the oven to 160 F Remove the oven racks Lift...

Page 36: ...performance checked At least once each year your oven should be inspected by a qualified service technician to ensure your oven continues to operate at its peak performance MOTOR CARE The motor on you...

Page 37: ...ranty serial number when contacting the Parts Service Department 1933099 Motor Blower Assembly 120V 50 60Hz 1935702 Combination Gas Valve 60K BTU Propane 1933098 Motor Blower Assembly 208 240V 50 60Hz...

Page 38: ...Part MPSM07 03 24 08 Page 38...

Page 39: ...Part MPSM07 03 24 08 Page 39 Section Two Service...

Page 40: ...Mechanical Moisture Control The Moisture system applies water through the solenoid in 1 second cycles The scale settings are in seconds Set to the low position the water will cycle once every 60 secon...

Page 41: ...tly above superheat value of water temperature will enable a preference of low temperature cooking Control Compartment Ambient Temperature Purpose This control will automatically run the cooling fan i...

Page 42: ...M07 03 24 08 Page 42 COMPONENT IDENTIFICATION Component moveable service drawer Moisture Control Solid State Timer Direct Spark Ignition Module Temperature Control Solid State control Heat Control Tra...

Page 43: ...per right blank After the user presses the TEMP upper right blank key the corresponding LED will light to show the key works The control will then continue to prompt the user to press the remaining co...

Page 44: ...y turned on within the oven by looking through the glass door 3 After a few seconds the Moisture Test will complete Press CANCEL to return to Diagnostics Mode Temperature Calibration 1 After selecting...

Page 45: ...he alarm will sound continuously All control operations will shut down except the alarm NOTE The control will need a complete power down and restart unplug plug in oven before any control functions wi...

Page 46: ...stuck Check centrifugal switch Gas valve s or Ignition System Check heat generation system Refer to Service procedures Heat generation system page Unit will not shut off Unit above 150 F Put unit int...

Page 47: ...from MV terminal on module during call for heat Display Check Heat should be displayed on the digital readout Temperature values should display while actual heat is increasing Oven should reach set t...

Page 48: ...Points 11 10 9 8 7 6 5 4 3 2 1 Key Ribbon Test Points Moisture 1 4 Light 2 4 On Off 3 4 High Fan 3 5 Low Fan 2 5 Pulse Fan 1 5 Cool Down 3 6 Cook Hold 2 6 Hidden 1 6 Start Cancel 3 7 Blank 2 7 Program...

Page 49: ...K5 Spritzer K6 Cooling Fan K7 Not used K8 Not used K9 Not used Relay Board All functions of the deluxe control are provided by electrical connections to the relay board An electronic signal is transm...

Page 50: ...rol to turn on the HEAT message in the lower right corner of the display One circuit is for gas ovens the second is for electric ovens Both will use the same common terminal There are two 2 wire conne...

Page 51: ...On Off key on the control panel It will also be active if the control goes into Cool Down There is one 10 amp relay for switching the heat circuit on and off as required There is one 10 amp relay for...

Page 52: ...he relay board will provide a solder filled plated through hole accessible to a DVOM probe tip This will allow the technician to probe a circuit without disassembly Function Test Point Function Test P...

Page 53: ...r wheel and fan motor are considered to be one complete assembly Therefore if the motor is determined to require replacement the blower wheel must be replaces as well Garland sets the wheel at the fac...

Page 54: ...Flame Detection Types Remote Sensing Minimum Flame Current 0 3 Microampere Flame Failure Response Time 0 8 Seconds Maximum Spark Gap 0 1 2 5mm Ignition Retrials 3 Safety Times 4 Seconds Waiting Times...

Page 55: ...ELAY BOARD IGNITION MODULE MOTOR CONTROL PANEL PCB2 MTR PCB1 MOD S10 S7 DESCRIPTION HI SPEED RELAY LO SPEED RELAY CHASSIS CONNECTION COOLING FAN PILOT VALVE RELAY OVEN LIGHT MAIN VALVE RELAY FAN GND K...

Page 56: ...FAST CONTROL M 05 04 06 AJG AJG AJG 4521571 R00 115V 60HZ GAS WIRE DIAGRAM 115V GAS LINE 2 SPLICE CONTROL TRANSFORMER IGNITION TRANSFORMER DESCRIPTION OVEN LIGHT TR2 L2 CONTROL RELAY BOARD IGNITION MO...

Page 57: ...he lower oven cavity bracket Lower BA door support plate 6 The upper and lower door bearing retainers and door rod can be easily separated from the cavity with a slight level pull upward and to the le...

Page 58: ...DO NOT REMOVE THE PROBE at this point Note The wires for the probe are located behind the RIGHT side panel SERVICE PROCEDURES REMOVAL REPLACEMENT 6 Use a clean dry cloth to hold the new light DO NOT T...

Page 59: ...rds the back of the oven to remove 6 Cavity probe is located ABOVE and to the RIGHT of the cavity motor 7 Disconnect the 2 BROWN probe wires at the temperature probe 8 The probe can now be removed fro...

Page 60: ...Part MPSM07 03 24 08 Page 60...

Page 61: ...Part MPSM07 03 24 08 Page 61 Section Three Parts List...

Page 62: ...Part MPSM07 03 24 08 Page 62 2006 Deluxe Control Panel Gas DELUXE CONTROL PANEL MOISTURE PLUS GAS...

Page 63: ...Sold Separately 10 4521365 Underlay Card M General Market 1 11 1955703 Standoff Nylon 1 4 Dia 9 16 Long 6 12 4521586 Overlay Gas Regulator 1 13 4521566 Switch 4A 125V Recessed Rocker 1 14 4521675 Sna...

Page 64: ...Part MPSM07 03 24 08 Page 64 2006 Standard Control Panel Gas MECHANICAL CONTROL STANDARD CONTROL PANEL MOISTURE PLUS GAS...

Page 65: ...Timer 1hr 115v W Alarm 1 March 07 15 1765803 Knob fluted 1 Screw 1 5 Dia 1 16 1936101 Indicator Lamp green 120v 1 17 1935301 Switch rocker ON OFF ON 1 19 1955402 Switch rocker DPDT ON ON 1 20 1955401...

Page 66: ...Part MPSM07 03 24 08 Page 66 2006 Burners Gas Components BURNERS GAS COMPONENTS...

Page 67: ...lose Nipple 1 2 NPT X 1 1 10 4520691 Bracket Gas Valve Mtg 1 11 1754901 Valve Basotrol Dual G96 Nat Gas 1 12 1754902 Valve Basotrol Dual G96 LP Gas 1 13 1038401 Hex Seal Bushing 1 2 X 3 8 1 14 1027499...

Page 68: ...Part MPSM07 03 24 08 Page 68 Revised_Interior Componets Gas INTERIOR COMPONENTS MOISTURE PLUS GAS...

Page 69: ...100 Watt 120 Volt 1 1623902 Lamp 100 Watt 208 240 Volt 1 8 1906002 Probe Flange Mount 1 8A 1906003 Probe Extension Cable 1 9 1933407 Bracket Probe Shield 1 10 1930203 Restrictor Plate 60K BTU Propane...

Page 70: ...Part MPSM07 03 24 08 Page 70 2006 Door Components Gas OUTER DOOR ONLY INNER DOOR NO HANDLE COMPLETE DOOR WITH HANDLE DOOR COMPONENTS GAS MOISTURE...

Page 71: ...acer MP Mechanical Handle 1 4A 4520808 B a Plate Door Bushing MP Top 1 4B 4520809 B a Plate Door Bushing MP Bottom 1 5 1923201 Decorative Ring 1 6A 1925101 Cam Door Switch 1 6B 8003802 Set Screw 10 24...

Page 72: ...Part MPSM07 03 24 08 Page 72 Revised_Plumbing Components Gas DOOR COMPONENTS GAS MOISTURE...

Page 73: ...t Std Standard Only 1 8 1934312 Tubing Water Rinse Front Deep Deep Only 1 9 1933411 Cover Water Connection 1 10 1934901 Fitting 1 8 NPT CC SS 3 11 8000310 Washer flat 3 8 X 1 STL ZP 1 12 1933411 Cover...

Page 74: ...Part MPSM07 03 24 08 Page 74 Revised_Exterior Components Gas EXTERIOR COMPONENTS GAS MOISTURE PLUS...

Page 75: ...13 1949701 Foot Insert Flanged 4 14 1775102 Caster Insert 4 15 1926501 Caster 4 Screw In 2 1926502 Caster 4 With Brake Screw In 2 16 1926521 Lo Profile Caster 3 Bolts To Base 2 1926522 Lo Profile Cast...

Page 76: ...02 W H Core Probe Deluxe 1936074 W H Door Switches Mech Standard 1936076 W H Relay Board To Control Deluxe 4521642 W H Lights Standard Deluxe 4521645 W H Door Switches Electronic Deluxe 4521574 W H Ma...

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