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Serving Quality on Demand
Visual Holding Cabinet (MHC)
Original Instructions
Installation, Operation and Maintenance Manual
This manual is updated as new information and models are released. Visit our website for the latest manual.
*8197455*
Part Number: MER_IOM_8197455 10/2018
Original Instructions
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Table of Contents
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Summary of Contents for Merco MHC22SNL1T
- Page 1 Serving Quality on Demand Visual Holding Cabinet (MHC) Original Instructions Installation, Operation and Maintenance Manual This manual is updated as new information and models are released. Visit our website for the latest manual. *8197455* Part Number: MER_IOM_8197455 10/2018 Original Instructions...
- Page 2 Safety Notices Warning Use caution when handling metal surface edges of all Warning equipment. Read this manual thoroughly before operating, installing or performing maintenance on the equipment. Failure Warning to follow instructions in this manual can cause property This appliance is not intended for use by children damage, injury or death.
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Page 3: Table Of Contents
Table of Contents Section 1 General Information Model Numbers .......................1-1 Serial Number Information ....................1-1 Warranty Information .....................1-1 Regulatory Certifications ....................1-1 Section 2 Installation Location ...........................2-1 Weight of Equipment ......................2-2 Clearance Requirements ....................2-2 Dimensions ........................2-2 Electrical Service ......................2-2 Voltage ..............................2-2 Rated Voltage, Cycles, Phases, Wattage, Amperages & Power Cord Chart ....2-2 Section 3 Operation Power Switch ........................3-2... - Page 4 Table of Contents (continued) Section 4 Maintenance Cleaning and Sanitizing Procedures ................4-1 General ..............................4-1 Exterior Cleaning ..........................4-1 Interior Cleaning ..........................4-2 Plastic Tray Cleaning ..........................4-2 Daily Cleaning Instructions ......................4-2 Section 5 Troubleshooting Troubleshooting Chart ....................5-1 Part Number: MER_IOM_8197455...
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Page 5: General Information
Reorient or relocate the receiving antenna. Service Personnel • Increase the separation between the equipment and receiver. All service on Merco equipment must be performed by qualified, certified, licensed, and/or authorized or service • Connect the equipment into an outlet on a circuit personnel. - Page 6 General Information Section 1 least 5mm separation from the human body at all times. Afin de se conformer aux exigences d’exposition RF FCC / ISED, cet appareil doit être installé pour fournir au moins 5mm de séparation du corps humain en tout temps. The FCC ID numbers: Reader Board: FCC ID: 2AQ4D-RFIDREADER...
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Page 7: Installation
Section 2 Installation Location DANGER Installation must comply with all applicable fire and Warning health codes in your jurisdiction. This equipment must be positioned so that the plug is accessible unless other means for disconnection from DANGER the power supply (e.g., circuit breaker or disconnect Carts must be installed and the carts must be screwed switch) is provided. -
Page 8: Weight Of Equipment
Section 2 Weight of Equipment Electrical Service Domestic Model Weight DANGER MHC22SNT1T 38lbs (17kg) Check all wiring connections, including factory MHC22SNL1T 38lbs (17kg) terminals, before operation. Connections can become loose during shipment and installation. MHC24SNT2T 64lbs (29kg) MHC52SNT1T 147lbs (67kg) DANGER... -
Page 9: Operation
Section 3 Operation The Merco Visual Holding Cabinet has been designed to DANGER afford food service operators the ability to cook menu The on-site supervisor is responsible for ensuring that components in advance and then gently store that product operators are made aware of the inherent dangers of in the holding bins until an order is received. -
Page 10: User Interface
Operation Section 3 User Interface The unit will beep signaling that all holding zones are pre- heated and ready for use. PASSWORD • A user can access all necessary screens for daily operation without a password. • The factory default manager password is 2580. PRESS &... - Page 11 Section 3 Operation The green portion of the tray timer represents the The alarm will beep for 10 seconds. The timer will display remaining time. Each menu item has a programmed time the product is being held past programmed hold time. warning time.
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Page 12: Tray Specifications
Operation Section 3 TRAY SPECIFICATIONS A Group in the Menu Use First For Identical Products A product in the menu is part of a group if there are dots underneath it or arrow heads on either side of it. Select the When two identical products are active, the one with the menu item with the dots and the other items in the group least time remaining will be highlighted in green, the others... - Page 13 Section 3 Operation On press and go screen the lock icon disables the touch screen for 10 seconds. The lock icon must be held for 1 second to disable the screen. In the center of the lock graphic the 10 seconds will be counted down. Ten seconds of disabled screen allows time for the touch screen to be cleaned.
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Page 14: Menu Screens
Operation Section 3 MENU SCREENS Select the unwanted product and then the delete icon, X. A confirmation widow will pop up. Select the green check to From the home screen selecting the menu icon brings up delete the product. Select the red X to return to the menu the menu screen. - Page 15 Section 3 Operation On the menu screen are navigation icons. If the group page is unlocked, the delete, edit and add icons will display on the group screen. • The first icon returns you to the product list screen. • The second takes you to the group list screen .
- Page 16 Operation Section 3 Select the group to be edited and the edit icon, a pencil. In To add a group, select the group page add icon, +. A pop up the pop up window the group will appear. You can edit the window will appear.
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Page 17: Setting Screens
Section 3 Operation On the menu screen are navigation icons. Next to the back SETTING SCREENS arrow is the day part edit icon. From the home screen selecting the settings icon brings up the preferences screen. This is the first of eleven setting screens. -
Page 18: Preferences Screen
Operation Section 3 PREFERENCES SCREEN DATE & TIME SCREEN To make changes on the preferences screen a passcode To make changes on the this screen a passcode must be must be entered. Select the lock on the bottom left of the entered. -
Page 19: Language Screen
Section 3 Operation LANGUAGE SCREEN CABINET NAMES SCREEN To make changes on the this screen a passcode must be To make changes on the this screen a passcode must be entered. Select the lock on the bottom left of the screen. entered. -
Page 20: Networking Screens
Operation Section 3 NETWORKING SCREENS To make changes on the this screen a passcode must be entered. Select the lock on the bottom left of the screen. Enter a passcode on the pop-up number pad. If the passcode is accepted there will be a yellow ring around the screen. -
Page 21: Zone Diagnostics Screens
Section 3 Operation ZONE DIAGNOSTICS SCREENS SOUND & SCREEN TESTS Holding cabinet temperatures can be monitored on this This screen does not require a passcode. screen, no password is required to observe current heating element temperatures. To run service tests on the this screen a service passcode must be entered. -
Page 22: Errors Log Screen
Operation Section 3 ERRORS LOG SCREEN PASSWORD SETTINGS SCREEN This screen does not require a passcode. Errors Log Screen Password Settings Screen Clear all button removes all entries on the errors log screen. There is a factory default manager passcode. It can be Touching the Refresh button will update the error list. -
Page 23: System Information Screen
Section 3 Operation SYSTEM INFORMATION SCREEN UTILITIES SCREEN This screen does not require a passcode, there are no To run demo mode on the utility screen a service passcode actions available on this screen. must be entered. Select the lock on the bottom left of the screen. -
Page 24: Load New Software Via Usb
Operation Section 3 Load New Software Via USB UI BOARD UPDATE 1. Firmware update files work for all models. 2. Verify the files and file names are correct on the UI USB. MHC software file folder name: vhcupdate MHC software file name: vhclfb Product menu file name: productsList.txt 3. -
Page 25: Maintenance
Section 4 Maintenance Cleaning and Sanitizing Procedures DANGER All utility connections and fixtures must be maintained GENERAL in accordance with Local and national codes. You are responsible for maintaining the equipment in accordance with the instructions in this manual. DANGER Maintenance procedures are not covered by the warranty. -
Page 26: Interior Cleaning
Maintenance Section 4 INTERIOR CLEANING DAILY CLEANING INSTRUCTIONS 1. You will need a damp cloth and hot soapy water. Caution 2. Turn the unit off. Do not use caustic cleaners on any part of the holding cabinet or holding cabinet cavity . Use mild, non abrasive soaps or detergents, applied with a sponge or soft cloth. - Page 27 Section 4 Maintenance 6. Remove the tray seals. 10. Wipe the interior with a damp cloth; clean from the front and the back to reach all surfaces. Pay attention to the ledges that support tray seals. If an excessive amount of food particles/grease has collected, hot sudsy water (non-abrasive) may be used.
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Page 28: Troubleshooting
Section 5 Troubleshooting Troubleshooting Chart Problem Cause Correction Cabinet not running Fuse blown or circuit breaker tripped. Replace fuse or reset circuit breaker. Power cord unplugged. Plug in power cord. Main power switch turned off. Turn main power switch on. Display has cross hatch in heating Heating pad connector is loose. - Page 29 THIS PAGE INTENTIONALLY LEFT BLANK...
- Page 30 MERCO 8700 LINE AVENUE, SHREVEPORT, LA 71106-6800 800-379-7278 WWW.MERCOPRODUCTS.COM Serving Quality on Demand WWW.MERCOMAX.COM WWW.WELBILT.COM Welbilt provides the world’s top chefs, and premier chain operators or growing independents with industry leading equipment and solutions. Our cutting-edge designs and lean manufacturing tactics are powered by deep knowledge, operator insights, and culinary expertise.
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