Merco MHC-22 Service, Installation And Operation Manual Download

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MHC-22 Holding Cabinet Items 86002 & 86003 Service, Installation And Operation Manual

For customer service, call (989) 773-7981, (800) 733-8829, Fax (989) 773-3210, www.mercoproducts.com

Notes

Summary of Contents for MHC-22

Page 1: ...ve These Instructions CAUTION MHC 22 Holding Cabinet Items 86002 86003 Service Installation and Operation Manual Please read this manual completely before attempting to install or operate this equipment Notify carrier of damage Inspect all components immediately ...

Page 2: ...G This Appliance Is Not Intended For Use By Persons Who Lack Experience Or Knowledge Unless They Have Been Given Supervision Or Instruction Concerning Use Of The Appliance By A Person Responsible For Their Safety WARNING This Appliance Is Not To Be Played With Warning Do Not Clean With Water Jet WARNING Do Not Use Electrical Appliances Inside The Food Storage Compartment Of This Appliance CAUTION ...

Page 3: ...t Care should be taken during unloading so the equipment is not damaged while being moved into the building 1 Visually inspect the exterior of the package and skid or container Any damage should be noted and reported to the delivering carrier immediately 2 If damaged open and inspect the contents with the carrier 3 In the event that the exterior is not damaged yet upon opening there is concealed d...

Page 4: ... parts or service 2014 Merco All rights reserved Reproduction without written permission is prohibited Regulatory Certifications 120V Models are certified by Underwriters Laboratories Sanitation Underwriters Laboratories UL Underwriters Laboratories of Canada ULC 230V Models are certified by Underwriters Laboratories Sanitation European Conformity Technical Inspection Association Serial Number Inf...

Page 5: ... www mercoproducts com Specifications Item Sku Model Description V Hz Ph Watts Amps Plug Type Net Wt lbs kg Ship Wt lbs kg 86002 MHC 22 120 60 1 1250 10 4 NEMA 5 15P 30 14 35 16 86003 MHC 22 CE 230 50 1 1250 5 5 CEE 7 7 30 14 35 16 13 65 35cm 17 51 44cm 10 76 27cm 19 50 50cm Plan View Elevation View End View Removable back for pass through applications ...

Page 6: ...ns 1 Remove legs from unit 2 Place mounting brackets on either side of unit and attach by inserting the screws washers provided into the holes left by the vacated legs Tighten firmly 3 With brackets securely attached to the unit place the unit where it is to be mounted and mark the locations for stud placement 4 Mount unit to shelf using hardware not included capable of handling the weight of unit...

Page 7: ...peration Manual 7 For customer service call 989 773 7981 800 733 8829 Fax 989 773 3210 www mercoproducts com Control Panel Bin 2 Button Program Button Bin 4 Button Bin 3 Button Time Button Down Arrow Button Up Arrow Button Temperature Button Bin 1 Button On Off Button ...

Page 8: ...t timer Pull out tray load product and reinsert bin Push and hold bin button Bin display will change to show presence of product Control will sound one short beep Release hold of bin button Empty bin and stop timer Pull out tray and remove product Reinsert tray Press and hold bin button The bin display will indicate empty bin Control will sound one short beep Action Instructions Silence Alarm for ...

Page 9: ...s temperature time and bin location settings These food items correspond to the four product storage bins of the unit For your convenience a personalized product settings chart has been included on page 16 As menu items are stored and saved into memory we recommend you note these individual settings in the chart for future reference 1 Part One Assigning A Food Item Name Into Memory Part one allows...

Page 10: ...nished with the last character of the name of food item Remember there is a maximum of four available characters to spell item name 8 Press and hold the Program button until you hear a short double beep sound to save setting and return to normal operating mode Upper Lower Temperature Settings For Food Product Each product bin has upper and lower heating elements that provide the heat necessary to ...

Page 11: ...begin preparing additional food to ensure there is no down time between preparing and providing food The cook time alarm should be set for the time necessary to completely prepare additional product of this type Dump Time Alarm This alarm has been designed to provide the operator with a warning that the food product has reached the end of its shelf life and should be discarded To insure the highes...

Page 12: ... these 32 food items any combination of 4 food items may be made active at any one time For example all four bins could hold hamburger at the same time or they could be used to hold four separate food items The trays used to hold the food product in each bin are made of plastic and are dishwasher safe These trays are also interchangeable between bins Part Four Assigning Food Product To A Storage B...

Page 13: ...aintenance The stainless steel outer case requires nothing more than a daily wiping with a damp cloth If however an excessive amount of food particles grease are allowed to collect a non abrasive cleaner hot sudsy water may be used The Product Holding Bin and Bin Lid may be cleaned via dishwasher or with warm soapy water Care must be taken to prevent water or cleaning compounds from getting on int...

Page 14: ...ard water salts and household and industrial cleaners If cleaners containing chlorides are used be sure to rinse repeatedly and dry thoroughly Routine cleaning of stainless steel can be done with soap and water Extreme stains or grease should be cleaned with a non abrasive cleaner and plastic scrub pad Always rub with the grain of the steel There are stainless steel cleaners available which can re...

Page 15: ... 5 Bsct Biscuits 170 200 200 60 10 Saus Sausage Patties 180 200 200 240 15 Ham Ham Steak 160 200 200 120 10 Dogs Hot Dogs 180 200 200 240 15 Ch Br Chicken Breasts 170 200 200 240 15 Burg Hamburger Patties 175 200 200 240 15 Fish Breaded Fish Fillets 180 190 190 45 10 Ck Pt Breaded Chicken Patties 180 200 200 45 10 Mt Lf Meat Loaf 180 220 220 120 10 Mt Bl Meatballs 180 220 220 120 10 Past Pasta 180...

Page 16: ...rammed We recommend writing the food item characteristics in the chart below to use as a quick reference tool You may want to revert back to this chart in the future to reference the different saved settings product name upper temp lower temp cook time dump time Product Code Product Description Upper Temp Lower Temp Cook Time Dump Time PD01 PD02 PD03 PD04 PD05 PD06 PD07 PD08 PD09 PD10 PD11 PD12 PD...

Page 17: ...esistance of the elements remove all leads from the elements and use a digital multimeter The element resistance should be 120V 87 ohms Replace heating element shelf as needed Check thermostat common wire Please note that if ther mostat is bad both circuits will be bad Temperature is too high Thermocouple Check for incorrectly wired thermocouple Thermocouple wire polarities are reversed Heat Eleme...

Page 18: ...ion is applied and the heater zone will adjust its temperature The user interface returns to the actual temperature display Once a bin is selected for programming if no keys are entered for 10 seconds the calibration mode is terminated and the display returns to actual temperature display mode Thermocouple Fault Detection The thermocouple TC fault detection logic is disabled for 10 minutes followi...

Page 19: ...ervice for single phase 120VAC Black conductor is hot White conductor is neutral Green and yellow conductor is ground Power is permanently supplied to the main power switch Heating Circuit Closing the main power switch supplies voltage to the power board and user interface Temperature is set through the user interface which then intermittently supplies 120VAC to the heater plates Temperature is th...

Page 20: ...tic K MER340025 Tray Cover Front Retention Rod Assembly L MER10000968 Side Insulation M MER340048 Top Bottom Insulation N MER10000966 Heater Insulation Key Part Number Part Description O MER10000946 02 Lower Shelf Assembly 120V MER90001079 Lower Shelf Assembly 230V P MER340051 Upper Upper Shelf Assembly 120V MER90001078 01 Upper Upper Shelf Assembly 230V Q MER340052 Lower Upper Shelf Assembly 120V...

Page 21: ...to board Mark all wires for reassembly 4 Take out power board 5 Take out shelf mounting screws from both sides 6 Remove shelves and feed wiring out of unit Be careful to avoid tearing the aluminum foil while working with wire connections 7 Reassemble in reverse order User Interface U I Board Replacement When replacing U I board be sure ribbon cable is connected so that blue wire is facing towards ...

Page 22: ...MHC 22 Holding Cabinet Items 86002 86003 Service Installation And Operation Manual For customer service call 989 773 7981 800 733 8829 Fax 989 773 3210 www mercoproducts com 22 Notes ...

Page 23: ...MHC 22 Holding Cabinet Items 86002 86003 Service Installation And Operation Manual 23 For customer service call 989 773 7981 800 733 8829 Fax 989 773 3210 www mercoproducts com Notes ...

Page 24: ...ate ________________ 980 S Isabella Rd Mt Pleasant MI 48858 U S A 989 773 7981 or 800 733 8829 Fax 989 773 3210 www mercoproducts com Merco reserves the right to make changes in design or specifications without prior notice 2014 Merco All rights reserved Printed in the U S A DMMOMHC22 02 14 9291486 For a list of Merco s authorized parts depots visit our website at www mercoproducts com Register yo...

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