Page 2 - Table of Contents
Table of Contents Model Identification 5 Online Oven Resources 5 ACP Programming Application 5 Firmware Updates 5 Important Safety Instructions 7 General Safety Instructions 9 Theory of Operation 12 Sequence of Operation 12 Specifications 14 Grounding and Installation 15 Grounding/Earthing Instructi...
Page 5 - Online Oven Resources
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 5 of 80 Part No. 16400033 Original Instructions Model Identification Any questions or to locate an authorized ACP servicer, call ACP ComServ Service Support – Inside the USA or Canada, call toll-free at 866-426-2621 – Outside the USA and Canada, call 319-3...
Page 6 - Important Safety Information
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 6 of 80 Part No. 16400033 Original Instructions Important Safety Information 1
Page 7 - IMPORTANT SAFETY INSTRUCTIONS; RECOGNIZE THIS SYMBOL AS A SAFETY MESSAGE; Important Notice for Servicers and Consumers; WARNING; Recognize Safety Symbols, Words, and Labels; DANGER
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 7 of 80 Part No. 16400033 Original Instructions When operating this oven, you must follow safety precautions to reduce the risk of personal injury due to burns, electric shock or possible exposure to microwave energy IMPORTANT SAFETY INSTRUCTIONS ⚠ RECOGNI...
Page 8 - SAVE THESE INSTRUCTIONS
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 8 of 80 Part No. 16400033 Original Instructions SAVE THESE INSTRUCTIONS 1 ALWAYS operate the oven from an adequately grounded outlet Do not operate on a two-wire extension cord 2 Before servicing the oven (if oven is operable) perform the microwave leakage...
Page 9 - PRECAUTIONS TO AVOID POSSIBLE EXPOSURE TO; GENERAL SAFETY INSTRUCTIONS
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 9 of 80 Part No. 16400033 Original Instructions SAVE THESE INSTRUCTIONS PRECAUTIONS TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY A DO NOT attempt to operate this oven with the door open since open door operation can result in harmful exposure t...
Page 10 - CAUTION
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 10 of 80 Part No. 16400033 Original Instructions SAVE THESE INSTRUCTIONS a DO NOT overcook food Carefully attend oven when paper, plastic, or other combustible materials are placed inside the oven, due to the possibility of ignition b Remove wire twist-tie...
Page 11 - Introduction; Theory of Operation
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 11 of 80 Part No. 16400033 Original Instructions Introduction Theory of Operation Sequence of Operation 2
Page 12 - Sequence of Operation
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 12 of 80 Part No. 16400033 Original Instructions Theory of Operation Utilizing technology that combines Convection and Hot Air-Impingement along with Microwaves, the ARX-MRX family of High Speed Combination Ovens rapidly cook food without sacrificing quali...
Page 13 - Specifications
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 13 of 80 Part No. 16400033 Original Instructions Specifications Power Specification· Input· Output· Consumption Oven DimensionsWeightGroundingInstallation 3
Page 15 - Grounding/Earthing Instructions; Installation; STEP 2 - Place Oven on Counter; STEP 3 - Install Cook Plate; Grounding and Installation
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 15 of 80 Part No. 16400033 Original Instructions Grounding/Earthing Instructions Oven MUST be grounded. Grounding reduces risk of electric shock by providing an escape wire for the electric current if an electrical short occurs This oven is equipped with a...
Page 16 - Oven Operation
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 16 of 80 Part No. 16400033 Original Instructions Oven Operation Touch Panel Menu DescriptionsTouch Screen Icon DescriptionsBasic Oven OperationPreprogrammed MenuManual Cooking 4
Page 17 - Touch Panel Menu Descriptions
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 17 of 80 Part No. 16400033 Original Instructions Touch Panel Menu Descriptions MENU SCREEN • Scroll up or down to choose from different categories CHANGE TEMPERATURE • Changes current oven temperature MANUAL RECIPE • Manually enter settings for a recipe ED...
Page 18 - Touch Screen Icon Descriptions
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 18 of 80 Part No. 16400033 Original Instructions POWER ON ICON • Press to preheat oven( Fan will continue to run if temperature is over 200°F / 95°C ) MENU ICON • Press to access a Menu Screen for manually editing recipes, changing user options, etc HOME I...
Page 19 - Preheat; Basic Oven Operation; Methods of Cooking; First Time Use; Power Off Oven
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 19 of 80 Part No. 16400033 Original Instructions Power On Oven, Preheat This oven can be set to a preheat temperature between 200°F (95°C) and 520°F (270°C) Oven must be plugged in ( Screen will power on to “Standby Mode” within approximately 30 seconds.) ...
Page 20 - Preprogrammed Menu Items; Cooking with Preprogrammed Menu Items; Standard Preprogrammed Menu Items:
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 20 of 80 Part No. 16400033 Original Instructions Preprogrammed Menu Items Cooking with Preprogrammed Menu Items 1 After oven has preheated to desired temperature, open oven door, place food in oven and close door 2 Scroll to choose desired food item from M...
Page 21 - Manual Cooking
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 21 of 80 Part No. 16400033 Original Instructions Manual Cooking Note: “Manual cooking” must be enabled in user options (see Section – User Options) Use manual cooking when a specific entered time and cooking power levels are desired. Manual cooking is very...
Page 22 - Programming
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 22 of 80 Part No. 16400033 Original Instructions Programming Manual ProgrammingManual Organization: FoldersManual Organization: TabsOven Programming: USB Flash DriveOven Programming: Wi-Fi and Ethernet 5
Page 23 - Save a Menu Item from Manual Cook:; Manually Move Recipe:; Manual Programming
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 23 of 80 Part No. 16400033 Original Instructions Save a Menu Item from Manual Cook: 1 To Save the settings and create Menu Item, press the Blue Save Icon 2 Choose a background color and icon, or an image, to customize the Menu Item 3 Press the Right Arrow ...
Page 24 - Manually Edit an Existing Recipe Folder:; Manual Organization: Folders; Manually Create a Recipe Folder:
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 24 of 80 Part No. 16400033 Original Instructions Manually Edit an Existing Recipe Folder: Note: You may also edit folders using the ACP Programming Application. 1 Press the Blue Menu Icon at the bottom of the screen 2 Press the “Manage Folders” option in t...
Page 25 - Manually Create a Recipe Tab; Manual Organization: Tabs; Manually Edit an Existing Recipe Tab
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 25 of 80 Part No. 16400033 Original Instructions Manually Create a Recipe Tab Note: You may also add recipe tabs using the ACP Programming Application. 1 Press the Blue Menu Icon at the bottom of the screen 2 Press the “Manage Tabs” option in the Menu Scre...
Page 26 - Export Menu via USB Flash Drive; Open Menu in ACP Programming Application; Import Menu via USB Flash Drive; Oven Programming: USB Flash Drive
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 26 of 80 Part No. 16400033 Original Instructions Caution: Uploading a new file will overwrite existing items on oven. To ensure items are not lost, first backup files by exporting to USB drive. Export Menu via USB Flash Drive 1 Press the Blue Menu Icon at ...
Page 27 - Connect Oven to Network:
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 27 of 80 Part No. 16400033 Original Instructions Connect Oven to Network: 1 Press the Blue Menu Icon at the bottom of the screen2 Press the “Network” option 3 Connect to network using your choice of Ethernet or Wi-Fi: To connect via Wi-Fi • Enable Wi-Fi ca...
Page 28 - Care and Cleaning
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 28 of 80 Part No. 16400033 Original Instructions Care and Cleaning 6
Page 29 - Best Practices
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 29 of 80 Part No. 16400033 Original Instructions Care and Cleaning Follow the recommendations below and on the following page for proper maintenance of ARX & MRX ovens ⚠ Caution : The use of caustic cleaning products or those containing ammonia, phosph...
Page 31 - User Options; Default User Options
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 31 of 80 Part No. 16400033 Original Instructions User Options Default User Options 7
Page 32 - Access and Modify User Options:
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 32 of 80 Part No. 16400033 Original Instructions User Options There are several options you can change to customize the operation of the oven for your business The table on the following page shows these options The factory setting is shown in bold type. A...
Page 34 - Firmware Update Procedure
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 34 of 80 Part No. 16400033 Original Instructions Firmware Update Procedure 8
Page 37 - Troubleshooting
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 37 of 80 Part No. 16400033 Original Instructions Troubleshooting Before Calling for ServiceService Test ModeOven TestsError CodesTroubleshooting Chart 9
Page 38 - Before Calling for Service
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 38 of 80 Part No. 16400033 Original Instructions ⚠ WARNING To avoid electrical shock which can cause severe personal injury or death, do not remove outer case at any time Only an authorized servicer should remove outer caseThis is a Class A product In a do...
Page 39 - Service Test Mode; With the PIN Code enabled:
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 39 of 80 Part No. 16400033 Original Instructions Service Test Mode Service Test Mode: The Service Mode is a useful tool to aid in diagnosing any service issue To access the oven’s Service Test Mode, the PIN Code must be enabled If the PIN Code is not enabl...
Page 42 - Oven Tests; Power Test; ΔT
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 42 of 80 Part No. 16400033 Original Instructions Oven Tests All ACP Microwave Oven Power Outputs are rated using the IEC705 standards Using the IEC705 test method requires precision measurements and equipment that is not practical to be performed in the fi...
Page 43 - Microwave Leak Test
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 43 of 80 Part No. 16400033 Original Instructions Oven Tests Microwave Leak Test The leakage reading must be recorded on the service repair documentation while in the customer’s premises Check for radiation leakage after servicing Should the leakage be more...
Page 44 - Measuring Procedure
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 44 of 80 Part No. 16400033 Original Instructions Measuring Procedure 1 Fill the glass beaker with 275 ml of cool water and place in center of oven Close door 2 After oven has preheated, press the Blue Menu Icon 3 Press the Manual Recipe option 4 Enter cook...
Page 45 - Error Codes
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 45 of 80 Part No. 16400033 Original Instructions Error Codes Code Description Corrective Action A2 Invalid Display Firmware Update Firmware or Replace Touch Control B1 Touch Screen Error Replace Touch Control B2 Wi-Fi Error Reset Touch Control If continued...
Page 46 - Troubleshooting Chart
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 46 of 80 Part No. 16400033 Original Instructions Troubleshooting Chart SYMPTOM POSSIBLE CAUSE REMEDY Oven will not operate No Display Incoming Power Supply Check all electrical connectionsCheck for power at wall receptacleCheck Fuse F1 Oven will not operat...
Page 47 - Component Overview; Testing
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 47 of 80 Part No. 16400033 Original Instructions Component Overview Testing Removal and Replacement 10 ⚠ WARNING • High voltage capacitor must be discharged before performing these procedures. Wait at least five (5) minutes after shutdown of high voltage s...
Page 48 - Panel Removal; Top Panel
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 48 of 80 Part No. 16400033 Original Instructions Panel Removal Panel Removal ⚠ DANGER Disconnect Power Supply before removing any Covers or Panels. The high voltages and currents at the filament and secondary winding of the Transformer are extremely danger...
Page 49 - Rear Exhaust Duct; Rear Exhaust Duct Removal
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 49 of 80 Part No. 16400033 Original Instructions Rear Exhaust Duct The Rear Exhaust Duct directs exhaust air from the Cooling Fans out of the rear of the oven Removal and Replacement 1 Disconnect oven from Power Supply2 Remove Top, Right, Left and Rear Pan...
Page 50 - Removal and Replacement
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 50 of 80 Part No. 16400033 Original Instructions Oven Thermal Cutout (TCO) Oven Thermal Cutout (TCO) The Thermal Cutout or TCO acts as a high-limit to protect the oven from an overheat situation in the cooking cavity The TCO is a switching device that will...
Page 51 - Triacs
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 51 of 80 Part No. 16400033 Original Instructions Triacs Triacs A Triac is an electronic switching device similar to a Relay Depending on the model, there will be up to four (4) Triacs, one (1) for the Cooling Fans, one (1) for the Heater, and one (1) for e...
Page 52 - Autotransformer and Snubber
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 52 of 80 Part No. 16400033 Original Instructions Autotransformer and Snubber Autotransformer and Snubber The Autotransformer circuit provides constant voltage to the Power Board and Cooling Fans The Snubber is in place to reduce voltage spikes Testing With...
Page 54 - Power Relay
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 54 of 80 Part No. 16400033 Original Instructions Power Relay The Power Relay is a switching device that controls the incoming power to all other components Testing With oven disconnected from the Power Supply, disconnect the Wires from the device Check res...
Page 55 - HV Capacitor
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 55 of 80 Part No. 16400033 Original Instructions HV Capacitor HV Capacitor ⚠ DANGER The high voltages and currents at the filament and secondary winding of the transformer are extremely dangerous. Never make any direct voltage or current measurements of th...
Page 56 - HV Diode; ⚠ DANGER
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 56 of 80 Part No. 16400033 Original Instructions HV Diode HV Diode ⚠ DANGER The high voltages and currents at the filament and secondary winding of the transformer are extremely dangerous. Never make any direct voltage or current measurements of this compo...
Page 57 - Magnetron TCO
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 57 of 80 Part No. 16400033 Original Instructions Magnetron TCO Magnetron TCO ⚠ DANGER All High Voltage Capacitors must be discharged before performing this procedure. The Magnetron TCO protects the Magnetron from an overheat situation Testing Remove Wires ...
Page 58 - Magnetron
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 58 of 80 Part No. 16400033 Original Instructions Magnetron Magnetron ⚠ DANGER The high voltages and currents at the filament and secondary winding of the transformer are extremely dangerous. Never make any direct voltage or current measurements of these ci...
Page 60 - Wave Guide
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 60 of 80 Part No. 16400033 Original Instructions Wave Guide Wave Guide ⚠ DANGER All High Voltage Capacitors must be discharged before performing this procedure. The Wave Guide channels the microwaves generated by the Magnetron into the cooking chamber Remo...
Page 61 - HV Transformer; Bottom of Unit
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 61 of 80 Part No. 16400033 Original Instructions HV Transformer HV Transformer ⚠ DANGER The high voltages and currents at the filament and secondary winding of the transformer are extremely dangerous. Never make any direct voltage or current measurements a...
Page 62 - Primary Interlock Switch
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 62 of 80 Part No. 16400033 Original Instructions Primary Interlock Switch Primary Interlock Switch The Primary Interlock Switch is a safety device that opens its contacts when the door is opened. It is to first switch to open when the door opens Testing Us...
Page 63 - Secondary, Monitor and Tertiary Interlock Switches
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 63 of 80 Part No. 16400033 Original Instructions Secondary, Monitor and Tertiary Interlock Switches Secondary, Monitor and Tertiary Interlock Switches The Secondary, Monitor and Tertiary Interlock Switches are part of a redundant safety system that will tu...
Page 64 - Power Supply Board
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 64 of 80 Part No. 16400033 Original Instructions Power Supply Board Power Supply Board The Power Supply Board steps down the incoming line voltage and rectifies it to 24 VDC for the electronics of the oven Testing ⚠ CAUTION Extreme care must be taken when ...
Page 65 - Main Control Board
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 65 of 80 Part No. 16400033 Original Instructions Main Control Board Main Control Board The Main Control Board is a PCB that controls the functions of the oven Testing Use the Oven Test Mode Removal and Replacement 1 Disconnect oven from Power Supply2 Remov...
Page 66 - Touch Screen Display Board
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 66 of 80 Part No. 16400033 Original Instructions Touch Screen Display Board Touch Screen Display Board The Touch Screen Display Board is the interface by which input to the oven’s controls is given by the user and information is output to the display Testi...
Page 67 - Temperature Sensor
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 67 of 80 Part No. 16400033 Original Instructions Temperature Sensor Temperature Sensor The Temperature Sensor (RTD) is a device whose electrical resistance changes with changes in temperature Testing With Connector Plug disconnected, test for resistance ac...
Page 68 - Convection Motor
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 68 of 80 Part No. 16400033 Original Instructions Convection Motor Convection Motor The convection motor turns a fan that creates the air movement for impingement cooking ⚠ CAUTION Extreme care must be taken when performing tests with line voltage applied. ...
Page 69 - Heater
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 69 of 80 Part No. 16400033 Original Instructions Heater Heater The Heater is mounted around the Convection Blower Wheel and heats up the impingement air for the cooking chamber Testing With the Wires removed test between the two (2) Terminals Resistance ≈ ...
Page 70 - Cooling Fans
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 70 of 80 Part No. 16400033 Original Instructions Cooling Fans Cooling Fans The Cooling Fans draw in ambient air from outside the oven and circulates it through the component compartments to keep them within their operating temperature range Testing With Co...
Page 71 - Cooling Fan Motor Run Capacitors
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 71 of 80 Part No. 16400033 Original Instructions Cooling Fan Motor Run Capacitors Cooling Fan Motor Run Capacitors The Cooling Fan Motor Run Capacitors alter the current going to the Cooling Fan Motors Testing Discharge Capacitors With Wires removed, check...
Page 72 - Wiring Diagrams / Schematics
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 72 of 80 Part No. 16400033 Original Instructions Wiring Diagrams / Schematics 11
Page 73 - Wiring Diagrams & Schematics
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 73 of 80 Part No. 16400033 Original Instructions ELECTRICAL SCHEMATIC: Models ARX1, ARX1BL, MRX1, MRX1BL Wiring Diagrams & Schematics
Page 77 - Notes
©2018 ACP, Inc. Cedar Rapids, IA 52404 Page 77 of 80 Part No. 16400033 Original Instructions Notes