18400-5001 High Speed Oven Service Manual
Contents
1. SERVICE EXPECTATIONS Service Philosophy For over fifty years Carter Hoffmann has enjoyed a reputation for manufacturing rugged dependable foodservice equipment that permits foodservice professionals serve more food products to more people and thus to grow their business Our goal is not only to provide the best food service equipment for the price but also to back it up with after sale service that is responsive fast efficient and professional We have prepared this brief document to ensure a clear understanding of our goals expectations and responsibilities Carter Hoffmann products are innovative and efficient They are easy to use easy to clean and easy to maintain Although the products are quite reliable when necessary they are also easy to repair We believe that a malfunction to a Carter Hoffmann product should cause as little inconvenience to the customer as possible Our aim is to provide same day first time fix repair service on all of our products whether in warranty or not We are dedicated to making every aspect of our customer service the standard by which others are judged Service Capability We expect the service provider to have ample trained staff parts communications and support to meet our serving expectations 1 Calls before 1 00 are to be completed that same day Calls received after 1 00 PM should be completed by the end of the next business day2. HIGH SPEED OVEN MODEL MDHSO1 The Carter Hoffmann Model MDHSO1 High Speed Oven is designed to bake approved menu items with the flexibility of future products Microwave and convection heating technology is combined to reduce baking time and produce fresh baked product PRODUCT FEATURES Multi level programmable controller for up to thirty settings for breakfast lunch dinner and late menus Fast Cool setting for quick cooling Clean Cycle for quick and easy cleaning Accepts 1 2 size standard aluminum baking pans Preheat to 400 F in 8 minutes or less Cooking temperature range from 150 F to 450 F Digital temperature display or C 300 series stainless steel construction Oven designed for counter top installation Long life spring action door latching mechanism Welded tubular door handle Durable 1 2 stainless steel door hinge pin with bronze bushing Smart Card Reader for quick menu changes 2 625 ELECTRICAL INFORMATION Voltage 208 volt 22 Amps maximum per line three phase 60 Hz 3000 watts convection and two 1020 watt each magnetron tubes Cabinet is provided with a six foot cord and NEMA L15 30P epee en 3 plug 2 space required for ventilation MCDONALD S BY Optional alternate electric and plug configurations CARTER HOFFMANN available 1551 MCCORMICK AVE MUNDELEIN IL 60060 U S A PHONE 1 847 362 5500 TOLL FREE 1 800 323
3. smo x WHEEL 3 DIA o 6610344 18814 0345 BLOWER 1200627 oo x _ 18614 0346 MOTOR MAGNETRON COOLING LG SHAFT 208240 m smo x 18614 0350 MOTOR CONVECTION FAN 208240 m sow x 18616 0155 THERMOCOUPLE PROBE K DC31701 Tewe senson Soo x 18616 0215 TRANSFORMER 208240V40VASEC_ mi so x 18616 0296 HIGH VOLTAGE TRANSFORMER Soz ovo 18616 0261 MAGNETRON TOSHIBA 1020w 2246 MAG macz 9900 x 18816 0283 ___________ CONTROLLER 0 xX 1180160284 READER MAGNETIC MEMORY CARD SMART CARDREADER ___12600 X 8816 0286 5 CONTROL O 950 x 8816 0288 NCC so x 18616 0289 TRANSFORMER HI VOLTAGE 208 230 PRI__ __TRLTRR smo x 8616 0303 ASSEMBLY CURRENT MONITORNCC 06750 CURRENTSENSOR 1000 x 118617 0017 _________ 750 875 18617 0028 DOOR BUSHING BRONZE so 9034 0281 HOLECOVER 850 00 x 29034 0268 GASKET SILICONE PRIMARY CHOKE som x 29034 0289 GASKET SILICONE SECONDARY 5 seo x 290379012 ____MENUPLEXIGLASSas xtP so x CAPACITOR MOTOR RUN 370VAC CALLFACTORY X 18 gt lt gt lt gt lt gt lt gt lt x lt x xx x lt x lt gt lt gt lt gt
4. McDonalds MDHSO HIGH SPEED OVEN Service Manual Intended for Authorized Service Agent use only Carter Hoffmann A Division of Carrier Commercial Refrigeration 1551 McCormick Ave Mundelein Illinois 60060 U S A Phone 847 362 5500 Toll Free USA and Canada 800 323 9793 Fax 847 367 8981 E mail service carterhoffmann com Sales and Marketing sales carterhoffmann com Website www carter hoffmann com Part Number 18400 5001 Rev 4 04 JJO TABLE OF CONTENTS SAFETY PRECAUTIONS GROUNDING INSTRUCTIONS INSTALLATION PROCEDURES SPECIFICATION SHEET FEATURES amp OPERATING CONTROLS NORMAL OPERATION PRODUCT CONFIGURATION MENUS CONTROLLER PROGRAMMING MENU CARD USAGE MICROWAVE POWER TEST TROUBLESHOOTING GUIDE COMPONENT IDENTIFICATION PARTS LIST WIRING DIAGRAM 208v 30a 60Hz WIRING DIAGRAM 400v 20a 50hz SERVICE EXPECTATIONS WARRANTY STATEMENT INTRODUCTION This manual is designed for use by professional technicians and provides the information necessary to successfully and safely troubleshoot and service the Carter Hoffmann High Speed Oven SPECIFICATIONS DIMENSIONS 30 125 wide x 20 5 high x 34 343 deep Door swing is 21 radius 2 clearance required on right side left side and back ELECTRICAL Voltage 208 vac 30 Wattage Appliance Maximum 5500 Watts Convection Heaters 2 1500 Watts each Magnetrons 2 1020 Watts each Amperage 22 Amps leg maximum Power Cord 6 cord wi
5. Approximate delivered power in watts is determined by Tise X 75 6 MICROWAVE POWER TEST DELIVERED POWER TEST McDonald s HIGH SPEED OVEN Tools 2 larger plastic microwavable container Measuring container Digital thermometer Oven must be cool to perform test Measure 2 liters water into a microwavable container Water must be 58 60 F Place the container IN THE CENTER OF THE OVEN CAVITY DISPLAY WILL READ 1 perform the test press MICRO PWR TST UTILITY key two times 2 Place container with water in cavity on shelf close door 3 Press the START button Display will count down from 01 03 minutes 4 At end of cycle remove container 5 Stir water with probe and take the temperature reading 6 Temperature rise should be between 20 24 F 15 TROUBLESHOOTING GUIDE SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION NO POWER Power cord not plugged in Plug in power cord to proper receptacle ON OFF Switch OFF Turn ON OFF Switch ON Main circuit breaker tripped Check and reset breaker Line fuse blown Correct cause of fuse failure and replace fuse s CABINET FAILS TO HEAT Door not fully closed Close door again Retry Start Stop button pressed Oven will not heat Blower fan Incorrect cooking cycle Retry cooking cycle runs Inoperable component Identify and replace failed part s CABINET FAILS TO HEAT RF Interference Verify RF leakage within limits Heat indicator comes on All
6. SOLID STATE RELAY sso 8600 0049 HPLIMIT MAGNETRON 8 COOLING FAN 243 DEGREE 5500 x 118000092 CAVITY sso Decree _ ms soo x 18600 0062 CAPACITOR 0 9imf 23006 soo x 8600 0065 RECTIFIER mo soo 18800 0073 osm 250 sso 1 186020075 SWITCH POWER ON OFF WINDIGATOR sw x 18802 0089 aunen 2 1 18602 0115 mease RELAY O 1186020117 SWITCH DOORHSOHOT Xx 1802 0124 RELAY DOUBLE contact soo x 18802 0127 SWITCH monton sw seo x 6602098 ReLaY 1P 18 200240 Ria 8950 18802 0229 CONTACTOR 2P 50 208 2407 Pon Pcarca seo x 186020230 FUSE BLOCK 4P 2409 88 603252 so x 186020233 FUSE LINE POWER SAMP amp KTK RS sow x 8802 0234 520 18603 0049 WIRING _________ ______________________ 18603 0063 WIRING HARNESS HLVOLTAGE soo x 8805 3054 HARNESS LOW vortase soo x 18605 0125 CORD POWER SOOW 8009 x 188055041 125600 vrer 8606 0665 PLUG POWER 115 306 250v TWISTLOK 950 186120328 ELEMENT HEATING 240v 16008 91200 16614058
7. 2 Technicians shall carry necessary parts tools and service manuals to complete all repairs on the first call 3 Technicians must diagnose problems and make adjustments repairs or parts replacements in strict accordance with factory procedures 4 Allrepairs are to be made on site at the customer s place of business Inoperative products are not to be removed or replaced without prior approval 5 All repairs are to be made a location and a time that provides the customer the least inconvenience 6 Only authentic OEM replacement parts shall be used to repair our products 7 Circuit boards electronic controllers and other sealed components are not to be opened or repaired locally without our authorization 8 Technicians are expected to maintain a professional appearance and behavior and customers are to be treated with respect and courtesy Sub Agents 1 service provider is responsible to ensure that all sub agents provide the same level of timely and professional service and adhere to these same expectations 2 The service provider is responsible to provide all sub agents with all the necessary training replacement parts tools manuals and supplies to carry out our service expectations Service Center Support We expect the service provider to establish and maintain the proper support capabilities to receive monitor and document all service and repair activities to our products 1 Customers shall be provide
8. A Fuses interlock switches power contactors solid state relays magnetron cooling fan high voltage component and heat sink hi limit HL1 may be accessed by removing the right side panel B Magnetrons magnetron cooling ducts and magnetron high limit NOTE Technical content of HL4 may be accessed by removing the top panel this including any C Convection fan motor heating element connections and oven wiring di 9 diagrams schematics cavity hi limit HL5 may be accessed by removing the rear panel parts breakdown illustrations D Temperature probe may be accessed by removing the left side or adjustment procedures is panel intended for use b ualified E Controller may be accessed by removing the front panel technical a F Inthe oven cavity both the rack and convection fan baffle are easily removable for cleaning CAUTION Burn Hazard Inner surfaces of the door will be very hot during and after operation Avoid touching the door when loading or removing product Operation may be cancelled at any time during the cooking cycle by pressing the CANCEL key Leaving the door open for more than 10 seconds will cause an alarm to sound The oven can be cooled down quickly for shut down or daily cleaning by the FAST COOL function OPERATION OPEN NORMAL OPERATION Verify the oven is plugged gt
9. For example it is pre programmed to provide the following pressing button 1 one time will show Biscuits 20 pressing it twice will display Biscuits 10 and pressing it three times will show Biscuits 16 Pressing button 1 four times will show Biscuits 8 Button 2 is for bagels and is single level Pressing button 3 one time will show Pies 10 12 pressing it twice will display the setting Pies 4 6 8 But ton 4 is for cookies which is also single level All other menu items are currently single level access only DISPLAY WILL READ Press PROG button Press button 2 to toggle to Yes or No ENABLE YES or NO Press PROG button Leaving this item in the manual mode allow the alarm to continue until the door is opened CANCEL A M MANUAL Press PROG button Should always be NO except for pies COOLING TIMER NO Press PROG button COOK TIME 00 00 Enter desired time in minutes and seconds using the format mm ss Press PROG button COOK TEMP 000 Enter desired temperature Press PROG button REST TIME 00 00 Enter time in minutes and seconds using the format mm ss to turn fan and heaters off at end of bake cycle 12 14 15 16 17 18 CONTROLLER PROGRAMMING INSTRUCTIONS con t Press PROG button MICRO START 00 00 Enter time in minutes and seconds using the format mm ss to turn microwave 00 00 indicates it starts at beginning of bake cycle Press PROG button Enter time in
10. lt gt lt gt lt gt lt gt lt Ead Ead gt lt gt lt gt lt gt lt gt lt gt lt Ead gt lt gt lt gt lt gt lt gt lt gt lt Ead Ead Ead Ead Ead Ead Ead Ead Ead Ead Eas gt lt gt lt gt lt gt lt gt lt gt lt gt lt gt lt gt lt gt lt gt lt gt lt gt lt gt lt gt lt gt lt gt lt gt lt gt lt gt lt gt lt gt lt gt lt gt lt Ead gt lt Ead x gt lt gt lt gt lt gt lt gt lt lt gt lt gt lt gt lt gt lt gt lt ELECTRICAL DRAWING MODEL 208 volt 30 amp 60 hertz 1 8 4 4 A CONTACTCRS U Poz Tle kear 14 5 RED tp 14406 NAGNETRON TRANSFORN ERS RIGHT LEFT NAGNETRONS P FAN MOTOR 1 8 3200RPM CONVECTKIN HEATERS 120 HL 7 57 8 RED REAR VIEW SSRI 5 SENSE 1 LEFT AND RIGHT DESIGNATIONS ARE FRON THE FRONT OF THE DVEN CHANGES 11 20 2001 2 WIRES ARE 1 AVG 1052 BODOV UNLESS OTHERWISE B UPDATE WRS 9 13 2001 3 ALL VAGNETRON WIRING 15 1
11. 9793 ITY 1 847 367 8981 ws FE Printed USA August 2002 FEATURES 8 OPERATING CONTROLS MAG COOLING EXHAUS 5 REAR ACCESS PANEL N REAR VIEW N CAVITY VENT TUBES N N S CONVECTION FAN S MOTOR COOLING HINGE gt y RF AX DOOR TOP ACCESS PANEL RIGHT SIDE ACCESS PANEL POWER CORD DOOR gt FRONT ACCESS PANEL POWER SWITCH SMART CARD READER oe BISCUITS 20 near on TEMP O micro on wr PROG 27 3 4 SL 6 2 1 8 9 HEATERS 2 gt 5 8 5 CONTROLLER Basic and template A All oven functions are controlled by the controller programming may be B Controller is programmed by accomplished by the use 1 Smart Card of a pre programmed Smart 2 Keypad Card C Controller functions are displayed on the digital readout The operation of the CONVECTION OVEN magnetron cooling system A Normal heating is provided by 2 heating elements causes a slight negative B Heated air is circulated by a cage type fan and a removable pressure in the oven cavity baffle Air drawn into the oven C The oven cavity is vented by two tubes the ends of which are around the door g
12. checked by pressing the TEMP key twice 10 PRODUCT SETTINGS 8 CONFIGURATION Default Cook Settings from Factory Rest Micro Micro Micro Time Start Stop Power 5 30 0 30 0 00 3 45 4590 Biscuits 10 0 00 9 00 9 00 9 00 0 00 4 y 0 00 5 Em 55 55 15 25 25 15 zi z New Menuttem n om New Menuttem n 8 n 9 NewMenuitem n 20 Newmenurem n m v f a 9 Delivered Power v 90 1 03 ooo 1 03 100 McDONALD S BISCUIT CONFIGURATION gt lt lt 20 COUNT 16 16 COUNT ROUND LARGE ROUND LARGE ROUND BUTTERMILK BISCUIT BUTTERMILK BISCUIT A BUTTERMILK BISCUIT B CONTROLLER PROGRAMMING INSTRUCTIONS BISCUITS 20 O PROG 1 2 3 4 5 6 17 8 9 0 NOTE You cannot go into edit or view program mode when cooling time for pies is activated SELEC
13. 5000 91600 MINNUM A ISSUED WRS 8 8 2001 4 FUSES ARE CURRENT UMMNG TNE DELAY TYPE 5 CONVECTION FAN MOTOR WRE LOOPS THROUGH CURRENT SENSOR 5 TIMES ELECTRICAL SCHEMATIC 6 ALL SWITCHES AND RELAY SHOWN WITH POWER OFF AND DOOR 9 13 2001 208V SOA 60Hz MDHS 3 8 meter of vtich is the 0000 1684 of Carter Hefimona 19 NOTE Technical content of this manual including any wiring diagrams schematics parts breakdown Note All switches amp relays shown illustrations or adjustment procedures is intended for use by qualified technical personnel only with power off and door open 5 1 AND DESRGNATIONS ANE FROM THE FRONT OF THE 2 RES ARE 1 1062 UNLESS OTHERMSE SACRED ALL WIRING 6 150007 91500 MINIMUM 4 FUSES ARE CURRENT LIMITING TME DELAY TYPE 5 CONVECTION MOTOR MRE LOOPS THROUGH CURRENT SENSOR 8 TNES ALL SWITCHES AND RELAY BHOWN WITH POWER OFF AND DOOR OPEN ER 12 18 2001 E amag 1 te 20 RED 1 44 i 2 5 Pa 1 8 A ISSUED 2 18 2001 ELECTRICAL SCHEMATIC 580 415 20A 50Hz MDHSO B 1000 1685 _____1
14. Hoffmann will provide without charge at least one master Service Manual to the service provider and individual product Equipment Manuals wiring schematics replacement parts list and servicing information to each qualified technician 23 SERVICE EXPECTATIONS cont Reference Manuals cont 2 This manual must remain in the main repair facility and be kept up to date with factory supplied update information 3 Service bulletins announcements and other specific information will be provided by Carter Hoffmann as required 4 All service materials will be published in English Service Technician Training 1 Service technician training may take quite different forms depending upon the specific product In any event only trained technicians are authorized to repair these products 2 Whenever required by Carter Hoffmann and at a mutually agreeable place and time the service provider shall make available for training all technicians authorized to service our products Every effort will be made to provide training locally However if travel is required to attend a service Clinic all travel expenses shall be borne by the service provider 3 Whenever required the service provider shall arrange for capable English translations services either written or verbal Carter Hoffmann will pay for the cost of such services 4 Carter Hoffmann will arrange for in factory training of service technicians on an as needed basis Service Provide
15. T MENUS BKFST indicates this is the end of this programming cycle for current menu selection If no other menu items are to be programmed press START button Display will read UPDATING MENUS Controller will return to original menu option prior to entering into the programming mode If other menu items are to be programmed press PROG key Display will read SEL gt Continue with item 7 Note Menu names can not be programmed at this time just setpoints By completing the following steps certain settings can be changed in the program For example enabling or disabling a menu item manual or automatic cancellation of alarm at end of bake cycle box cooling time convection cook time temperature of cavity rest time or turning all heat and air flow off along with microwave power on off and Programming will not interrupt the temperature cycling of menu selected item DISPLAY WILL READ To enter programming mode press DAY PART BRKFST and hold PROG button for 3 seconds Push PROG button 2 times EDIT MENU ITEM NO Press 2 button EDIT MENUITEM YES Press PROG button PASSWORD 0000 Enter the following password 9793 Press PROG button SELECT MENU BRKFST Press PROG button SEL gt Select desired menu button to program Display will read menu item selected VERY IMPORTANT 10 11 12 13 Note the controller is multi leveled and has the capability to provide several menu items per button
16. anel d Do not use the cavity for storage purposes Do not leave paper products cooking utensils or food in the cavity when not in use SAVE THESE INSTRUCTIONS PRECAUTIONS BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY A Do not operate or allow the oven to be operated with the door open B Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source and make repairs as necessary 1 interlock operation 2 proper door closing 3 seal and sealing surfaces arcing wear and other damage 4 damage to or loosen ing of hinges and latches 5 evidence of dropping or abuse Before turning on microwave power for any service test or inspection within the microwave generating compartments check the magnetron wave guide or transmission line and cavity for proper alignment integrity and connections D Any defective misadjusted components in the interlock monitor door seal and microwave generation and transmission systems shall be repaired replaced or adjusted by procedures de scribed in this manual before the oven is released to the owner A Microwave leakage check to verify compliance with the Federal performance standard should be performed on each oven prior to release to the owner GROUNDING INSTRUCTIONS This appliance must be grounded In the event of an electrical short ci
17. asket situated in venturi sections of the magnetron cooling exhaust helps keep the door cool duct during operation MICROWAVE OVEN The wave guide is designed A The microwave oven is fed by two magnetrons via dual to minimize microwave wave guides blind spots without the use B The wave guides are sealed from the oven by a Teflon window of a stirrer C The inner surface of the door is equipped with an RF seal RF choke to minimize microwave radiation leakage Magnetron cooling is completely separate from SAFETY FEATURES the oven to minimize grease must be closed and latched for either the microwave or contamination of the convection section to operate Any attempt to defeat the door magnetrons or wave guides latch safety will cause the line fuses to blow crowbar circuit B Reset able hi limit thermostats protect the oven cavity solid Fuses and hi limit state relays and magnetrons from excessive temperature thermostats may be C An auxiliary thermostat will energize the magnetron cooling fan accessed by removing the any time the temperature at the magnetron mounting exceeds appropriate access panel 120 F regardless of the position of the power switch D The oven is protected from over current by two line fuses The fast cool function E The magnetrons are protected from over current by individual key in lower left corner of fuses keypad allows the fan to run with the door open CABINET
18. d a toll free telephone number to call for service and repair 21 SERVICE EXPECTATIONS cont Service Center Support cont The service provider shall maintain 24 7 service coverage Full coverage shall be provided to the entire area serviced All incoming calls shall be fully documented e g model customer nature of problem date and time call received dispatched completed Troubleshooting assistance shall be provided over the phone Service call reports shall be maintained throughout each product s warranty period The service provider shall provide his technician s with or access to any special tools needed to service our equipment including note computers e mail access to our web site computer interface connections electronic data exchange etc PON NOH Warranty Service All products are sold with a limited warranty The exact terms of each warranty are printed each product s Equipment Manual 1 service provider is NOT authorized to change or extend any of the terms or conditions of our warranty 2 Within the warranty period we agree to repair or replace at our option only not the customer s or the service provider s the product at our expense to correct a problem or defect 3 Initial freight damage is NOT covered by the product warranty Reimbursement for Warranty Expenses Carter Hoffmann will reimburse the service provider for all covered authorized warranty expenses To receiv
19. e prompt payment for warranty service expenses please comply with these guidelines 1 Provide Carter Hoffmann with your reimbursement terms prior to submitting claims 2 Carter Hoffmann will pay you for the freight duties taxes etc for any replacement part used for warranty repair 3 All individual charges e g basic labor overtime mileage supplies etc must be listed and converted to U S dollars on the International Warranty Service Report 4 Labor charges will be reimbursed at the service provider s published rate which must be on file with Carter Hoffmann 5 Mileage expenses will be reimbursed at the service providers published rate which must be on file with Carter Hoffmann Replacement Parts Inventory Pricing We expect the service provider to maintain a sufficient inventory of replacement parts in order to promptly repair Carter Hoffmann products as well as to sell replacement parts to those customers who wish to buy parts only for after warranty repairs 1 An initial parts inventory must be purchased before a new Carter Hoffmann product is in troduced to the service area 2 The inventory of replacements parts must be at hand in trucks branch offices sub agents etc as to meet our service expectations 3 The service provider shall inform Carter Hoffmann of any special handling or importation requirements or procedures for importing replacement parts 4 Carter Hoffmann does NOT automatically replace parts
20. erial between the door sealing surfaces Do not use an external thermocouple in the oven cavity Do not allow soil or cleaning residue to accumulate on the door sealing surfaces CAUTION FIRE HAZARD Do not overcook foods In case of a fire in the oven cavity do not open the door Disconnect the oven from electrical power and allow the fire to self extinguish in the closed cavity Opening the door may allow the fire to spread CAUTION BURN HAZARD During operation interior door surfaces may become very hot and can cause serious burns on contact 5 CAUTION MICROWAVE RADIATION LEAKAGE HAZARD IMPORTANT SAFETY INSTRUCTIONS When using electrical appliances basic safety precautions should be followed including the following WARN ING To reduce the risk of burns electrical shock fire injury to persons or exposure to excessive microwave energy Read all instructions before using the appliance Read and follow the specific PRECAUTIONS TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY found on page 5 This appliance must be grounded Connect only to properly grounded outlet See Grounding Instructions found on page 5 Install or locate this appliance only in accordance with the provided installation instructions Some products such as whole eggs and sealed containers for example closed glass jars may explode and should not be heated in this oven Use this appliance only for its intended use a
21. in proper outlet Turn power switch to ON Controller defaults O to menu 1 The dis play will read BISCUITS and the oven will begin to heat The convection oven will turn on and the 1 2 3 2 will 4 5 6 for oven to preheat Normal pre heat time is 7 8 9 approximately 8 9 ones minutes _ If the default menu item is not desired select the proper menu item see chart on page 10 If the oven is not at the proper temperature the display will read TOO COOL When the proper operating temperature for the se lected item is reached the message will disappear Load product into oven and press START key to begin a cooking cycle When cooking cycle is complete the display will read REMOVE and an audible signal will sound Remove product from oven CLOSE Open door Press the lower left key UTILITY on the keypad to initiate the fast cool function Display reads FAST COOL Door must be open during this operation Press START key Allow fan to run for approximately 10 minutes or until the oven has cooled to less than 100 F To cancel fast cool function press and hold the CANCEL key or close the door Turn power switch to oven in OFF position CHECKING THE OVEN TEMPERATURE AND SET POINTS The current oven temperature may be checked by pressing the TEMP key once 2 The temperature set point for the current menu item may be
22. me Confidentially The service provider and all his employees and sub agents shall protect and keep confidential Carter Hoffmann s proprietary designs information and knowledge All materials provided by Carter Hoffmann is to be considered confidential it remains Carter Hoffmann s property and is not to be reproduced without our prior approval Liability Exclusions The service provider s relationship with Carter Hoffmann is that of an independent contractor The provider may not represent themselves as a part of or employees of Carter Hoffmann Carter Hoffmann assumes no responsibility for any charges or claims for repair or service on products that are no longer covered by the applicable warranty The service provider shall carry sufficient liability insurance Termination If and at Carter Hoffmann s sole determination the service provider is deemed unable or un willing to follow the letter and intent of these expectations we reserve the right to refuse to sell additional products to and withhold additional support and to unilaterally terminate our relationship with the service provider 1 Carter Hoffmann reserves the right to seek out and establish additional service providers in any market area to service its products 2 In the event that termination of our relationship occurs Carter Hoffmann will provide the service provider with 30 days written notice All matters relating to the termination will be explained at tha
23. minutes and seconds using the format mm ss to turn microwave on Time entered is how long microwave is on during the bake cycle Press PROG button Enter desired by pressing the 2 button up or 8 button down Press PROG button A short audible alarm will sound Indicates this is the end of the programming cycle for current menu selection Pressing START button once returns to step 2 of programming cycle DISPLAY WILL READ MICRO STOP 00 00 MICRO POWER UPDATING MENU ITEM SELECT MENU BRKFST EDIT MENU ITEM If other menu items to be programmed perform steps 3 through step 19 If not press START button again and display will return to original menu item selected 13 BISCUITS 20 neat on Sime Oe IPROG 4 2 3 4 5 6 7 8 NOTE Cannot go into CONTROLLER PROGRAMMING INSTRUCTIONS edit or view program mode when cooling time for pies is activated BISCUITS 20 gt 1 2 3 4 5 6 7 8 9 0 TRANSFERRING MENU INFORMATION FROM THE CONTROLLER TO MENU CARD Complete the following steps to read menus from the smart card to the controller or to write menus from the controller to the smart card This function ca
24. n not be performed during a cooking cycle When oven is turned on the controller automatically defaults to item 1 in button 1 DISPLAY WILL READ Insert card into slot After test of card PASSWORD 0000 2 Enter password Press PROG READ MENU CARD NO 3 Press PROG WRITE MENU CARD NO 4 Press button 2 WRITE MENU CARD YES 5 Press PROG button WRITING CARD 6 Display will default to read TRANSFER MENU NO 7 Remove card press START Display will return to original menu option at the start of this function TRANSFERRING MENU INFORMATION FROM THE MENU CARD TO THE CONTROLLER Complete the following steps to provide new settings to the controller with the use of a card to the Smart Card Reader DISPLAY WILL READ 1 Insert card into slot After test of card PASSWORD 0000 2 Enter password Press PROG READ MENU CARD NO 3 Press 2 button once READ MENU CARD YES 4 Press PROG button READ CARD 5 Display will default to read TRANSFER MENU NO 6 Remove card 7 Press START button Display will return to original menu option 14 Complete the Microwave Power Test to determine the wattage delivered by the microwave into the cavity Oven must be cool to complete this test Carefully measure and record the temperature of the water at the start of the test At the conclusion of the test stir the water then again care fully measure and record its temperature Determine the temperature rise by Trise Tena
25. other displays normal Faulty controller Replace controller CABINET FAILS TO HEAT Hi limit tripped Reset hi limit Temperature lamp comes on All other displays normal Faulty heater relay Replace relay Faulty heat element s Replace element s OVEN NOT HEATING Incorrect heating procedure Check time setting NORMALLY Wattage output too low Perform Power Test Magnetron fuse blown Replace fuse Inoperative magnetron Verify high voltage circuits replace transformer capacitor diode and or magnetron as required Check high voltage wiring and connections CONTROLLER RF Interference Verify RF leakage within limits INOPERATIVE OR ERRATIC Faulty controller Replace controller Faulty controller transformer Replace transformer AIR TEMP PROBE FAILURE Loose probe connection Air probe malfunctions Faulty air thermocouple Replace air probe 16 CARTER HOFFMANN HSO HIGH SPEED OVEN INTERNAL ARRANGEMENT HIGH VOLTAGE COMPONENTS HIGH SPEED OVEN PARTS LIST WITH PRICING HSO 0000 HSO 0001 208V 400v 30A 60hz 20a 50hz Part Number Part Description List Price 16000 9829 DOOR ASSY 900 00 X 18050 0043 OVEN MOUNTING BOLTS PER 9 18120 0094 OVEN MOUNTING WASHERS PER ___ 3100 8304 0088 90 8304 0087 RAMP UP BLOCK DOOR SWITCHES 1181002014 DOOR SPRING GEO240 09 20008 50 x 8600 0042
26. oyees does not share some responsibilities It is important that our local agents understand what Carter Hoffmann defines as customer responsibili ties 1 All shipping damage must be noted on the freight bill wnen the shipment is received Any freight damages must be collected from the Freight Company NOT Carter Hoffmann 2 The end user should be advised beforehand to carefully unpack and inspect all products when they are received BEFORE SIGNING THE SHIPPER S RECEIPT OF DELIVERY 3 The end user must provide a safe dry level surface for the equipment to be placed upon 24 SERVICE EXPECTATIONS cont End User Responsibilities cont The end user must provide the proper electrical supply in wall electrical modifications are to be completed by a licensed electrician All building modifications are the responsibility of the end user The end user must operate clean and maintain the equipment in accordance with the procedures described in the Equipment Manual Carter Hoffmann is NOT responsible for any loss of the customer s income loss of food product extra labor charges or any other incidental or consequential costs as a result of the malfunction of our product The end user shall contact our authorized service provider only whenever service or repair to a Carter Hoffmann product under warranty is required The end user shall allow for on premises repair of the equipment to be completed at a mutually convenient place and ti
27. perate the oven when empty Inadequate energy absorbing material such as food or water may cause the magnetron to overheat Do not put any of the following in the oven cavity regular cooking thermometer or external thermocouple newspaper or paper towels containing synthetic fibers sealed containers or plastic bags sharp or pointed items such as knives forks twist ties foil etc Do not cook unapproved products fat or eggs with unbroken shells and or yolks in this oven Do not use the oven cavity for storage Never leave anything in the oven cavity when the oven is not in use Any procedure which requires the use of tools must be performed by a qualified technician Installation Guide Check for proper voltage and circuit breaker size Requires 208 Volt 3 Phase 30 Amp Circuit Ensure receptacle is correctly installed and operating safely Requires L15 NEMA wall mounted receptacle Position oven on table or counter top Maintain 2 of clearance on each side and back of oven to allow for adequate cooling The right side of the oven should not be placed next to high heat equipment such as fryers grilles or broilers This side of the oven contains the component cavity and access may be needed to this area for service Fasten oven to table or counter top from underneath with bolts provided Oven must be securely fastened to prevent movement Seal around bottom edge of oven with NSF approved material
28. r Communication Our aim is to manufacture reliable products The service provider s aim is to deliver prompt efficient service and repair Both of us want to provide quality service to our mutual cus tomer Occasionally problems occur that are not easily remedied In those instances it is important that we communicate clearly and promptly so that together we can resolve the problem To ensure this Carter Hoffmann requires that the service provider notify us 1 Whenever you have difficulty repairing a Carter Hoffmann product 2 If you have not completed the repair of a product within working days from the initial customer call for service 3 Whenever one unit has had the same reported problem for 3 times 4 Whenever 3 or more units are out of service for the same problem 5 Whenever a customer complains formally about poor product reliability excessive service calls or poor service or follow up 6 Whenever you encounter significant safety or repeat problems with Carter Hoffmann products Please provide us with enough specific information to allow us to replicate the conditions and cause of the problem 7 Not unilaterally disclose to the customer any chronic or repeated problem or offer opinions con cerning the design or suitability of our products without first involving us End User Responsibilities While we all strive to serve our mutual customers as well as possible that does not mean that the end user including his empl
29. rcuit grounding reduces the risk of electric shock by providing an escape wire for the electric current This appliance is equipped with a cord having a grounding wire with a grounding plug The plug must be plugged into an outlet that is properly installed and grounded WARNING Improper use of the grounding can result a risk of electric shock Consult a qualified electrician or serviceman if the grounding instructions are not completely under stood or if doubt exists as to whether the appliance is properly grounded GENERAL SAFETY PRECAUTIONS This oven is intended for use in commercial establishments only This oven is intended to prepare food for human consumption No other use is recommended or authorized by the manufacturer or its agents Allow 2 clearance between the cabinet and adjacent equipment or structure in order to provide adequate cooling The right side of the oven should not be placed next to high heat equipment such as fryers grilles or broilers Operators of this appliance must be familiar with the appliance use limitations and associated restrictions Operating instructions must be read and understood by all persons using or installing this oven Cleanliness of this oven is essential to good sanitation Read and follow all included cleaning instructions and schedules to ensure the safety of the food product Do not splash or pour water on in or over any louvers controls control panel or wiring Do not o
30. s described in the manual Do not use corrosive chemicals or vapors in this appliance This type of oven is specifically designed to heat cook or dry food It is not designed for industrial or laboratory use Do not operate this appliance if it has a damaged cord or plug if it is not working properly or if it has been damaged or dropped Only qualified service personnel should service this appliance Contact nearest authorized service facility for examination repair or adjustment 9 Do cover or block any openings on the appliance 10 Do not store this appliance outdoors Do not use this product near water for example near a kitchen sink in a wet basement or near a swimming pool and the like 11 Do not immerse cord or plug in water 12 Keep cord away from heated surfaces 13 Do not let cord hang over edge of table or counter 14 When cleaning surfaces of door and oven that comes together on closing the door use only mild nonabrasive soaps or detergents applied with a sponge or soft cloth 15 To reduce the risk of fire in the oven cavity a Do not overcook food Carefully attend appliance if paper plastic or other combustible materials are placed inside the oven to facilitate cooking b Remove wire twist ties from paper or plastic bags before placing bag in oven If materials inside the oven should ignite keep oven door closed turn oven off and disconnect power cord or shut off power at the fuse or circuit breaker p
31. t time 25 WARRANTY STATEMENT One year parts and labor Repair and or replacement for covered items Repair or replacement is at the discretion of Carter Hoffmann This warranty covers defects in material and workmanship to the first end user only This warranty does not cover abuse or misuse shipping damage service agent travel expenses over 100 miles or two hours holiday charges or overtime charges or damage due to the loss of time loss of use or other consequential items resulting from failure NOTE A Letter of Agreement Warranty is on file with McDonald s Corporation if there are any concerns regarding the warranty statement in this equipment manual the Letter of Agreement Warranty shall supercede and control Carter Hoffmann A Division of Carrier Commercial Refrigeration 1551 McCormick Ave Mundelein Illinois 60060 USA Phone 847 362 5500 Toll Free USA and Canada 800 323 9793 Fax 847 367 8981 After Hours Emergency 800 421 3744 Service E mail service carterhoffmann com Sales and Marketing E mail sales carterhoffmann com Company Website www carter hoffmann com CARTER HOFFMANN 26
32. t covered by our warranty To ensure prompt and complete reimbursement for defective components parts 1 Tag part completely including customer model date of replacement repair order number etc and retain part until warranty reimbursement claim has been approved by Carter Hoffmann 2 Submit a completed warranty reimbursement claim to Carter Hoffmann promptly including all relevant information 3 Only if specifically required send the part s to Carter Hoffmann by prepaid freight You will be reimbursed for the shipping and handling costs Labor Rates It is not Carter Hoffmann s intention to dictate local repair and service labor rates and charges However we do have certain expectations about the proper and fair implementation of labor rates These include 1 Labor rates shall be the same for all other products repaired by the service provider 2 current published labor rates schedule shall be sent to Carter Hoffmann at least once annually 3 Premium labor rates or any other additional charges such as mileage after hours out of territory etc shall be reasonable consistently applied and published 4 Sub agent rates shall not be higher than the service provider s published rate Factory Support Carter Hoffmann is committed to providing its service provider s with accurate up to date technical information and training to enable skilled technicians to repair our products Reference Manuals 1 Carter
33. th NEMA 15 30P plug SAFETY PRECAUTIONS DANGER DANGER EXTREMELY HIGH VOLTAGES Voltages in the high voltage section of this oven can exceed 2 000 volts Contact with extremely high voltages can cause severe injuries or death Always wait at least 2 minutes after disconnecting oven from electrical power be fore servicing Always check components of the high voltage section with a high voltage probe to verify voltages have bled down to safe levels before servicing WARNING MICROWAVE RADIATION HAZARD High energy microwave radiation is generated during operation of the microwave section of this oven Microwave radiation can cause severe injury Do not attempt to operate the oven with the door open Do not attempt to defeat any safety interlock or safety system CAUTION MICROWAVE RADIATION HAZARD Damage to the door can result in microwave radiation leakage Do not operate the oven if the door is damaged AY CAUTION ELECTRIC SHOCK HAZARD Disconnect this appliance from electrical power and wait 2 minutes before performing any maintenance or servicing CAUTION MICROWAVE RADIATION LEAKAGE HAZARD Any procedure that disturbs any component within the microwave section of the oven may cause microwave radiation leakage Always perform a microwave radiation leakage test after servicing the microwave section of the oven Microwave radiation leakage must not exceed 4mw cm Do not place or allow any mat
34. used in warranty repair The service provider must reorder ALL replacement parts used 22 SERVICE EXPECTATIONS cont Replacement Parts Inventory Pricing cont 5 Should recommended parts not be used within one year of their purchase from Carter Hoffmann the parts may be returned for full credit with no restocking charge Discounts and Sales Terms All Carter Hoffmann replacement parts are sold under the following terms and conditions 1 Carter Hoffmann will establish a Suggested List Price for all replacement parts The service provider may set his own retail prices for replacement parts The service provider shall provide Carter Hoffmann a current price schedule for replacement parts 2 All prices are quoted U S dollars and Mundelein Illinois U S A Freight duties tariffs local taxes or any other charges are in addition to our published prices 3 Replacement parts are sold to authorized full service providers at a fifty percent 50 discount 4 Allorders are subject to the approval of our credit department Open account terms are net 30 days U S and Canada 60 days for international 5 Carter Hoffmann reserves the right to sell replacement parts directly to selected customers and end users at full list price Returned Goods Procedure Carter Hoffmann will reimburse the service provider for the complete cost of any defective component including freight duties taxes etc from a produc
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