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Nemco 6220-17 User Manual

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Convection
Model #s: 6220-17, 6240
Ovens
6220-17
6240

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Summary of Contents for Nemco 6220-17

  • Page 1 Convection Model #s: 6220-17, 6240 Ovens 6220-17 6240...

  • Page 2: Table Of Contents

    CONTENTS TECHNICAL DATA Page. 3 INTRODUCTION Page. 7 Identifying the danger or warning signals Purpose of the product INSTALLATION Page. 7 Installation requirements Transport Unpacking Installing the feet Placement Electrical connection Water connection Water drain Conditioning the appliance OPERATION INSTRUCTIONS Page.
  • Page 3 6220-17 Technical Data CAPACITY  (3) 18 in x 13 in / 460mm x 330mm half size pans STANDARD EQUIPMENT  (2) 3-level side supports, 2.92 in (74 mm) step FUNCTIONAL FEATURES  200°F to 500°F temperature range  Cooking timer up to 2 hours or run on infinite for continuous heat ...
  • Page 4 6220-17 Overall Dimensions Front View Side View Water Inlet Steam Exhaust Pipe Power Cord Strain Relief Side View Door Open Rear View STEAM EXHAUST PIPE POWER CORD STRAIN RELIEF...
  • Page 5 6240 Technical Data CAPACITY  (4) 13 in x 9 in / 330mm x 230mm quarter size pans STANDARD EQUIPMENT  (2) 4-level side supports, 1.00 in (25 mm) step FUNCTIONAL FEATURES  200°F to 500°F temperature range  Cooking timer up to 2 hours or run on infinite for continuous heat ...
  • Page 6 6240 Overall Dimensions Front View Side View Rear View Side View Door Open STEAM EXHAUST PIPE POWER CORD STRAIN RELIEF...

  • Page 7: Identifying The Danger Or Warning Signals

    INTRODUCTION Carefully read this user manual before using your new oven; pay special attention to the information highlighted with the WARNING, CAUTION, and NOTES symbols Identifying the danger or warning signals: WARNING This signal indicates the presence of danger, which may cause serious injury, death, or damage if disregarded.

  • Page 8: Installing The Feet

    Installation of the feet WARNING Risk of fire. This appliance has been designed to operate with specific feet. Do not use the appliance without installing the feet first. Using the appliance without feet may cause fire due to overheating. If the feet are not installed on the appliance, they are inside the cooking chamber and must be screwed into the four threaded holes on the underside of the oven.

  • Page 9: Electrical Connection

    Electrical Connection NOTES  Before making the connections, make sure that the voltage and frequency of the power supply system match the specifications of the "technical data" plate affixed to the appliance.  The appliance must be connected to a suitable electrical system following the connection data located on the sides of the machine.

  • Page 10: Water Connection

    Water Connection The appliance MUST be hooked up to a softened water supply that meets the water specifications below. It is necessary to use a softener, filter system, and/or reverse osmosis system to achieve this water purity and limit the formation of lime scale inside the cooking chamber. The water pressure must range between 14.5psi (100 kPa) and 29 psi (200 kPa).

  • Page 11: Operation Instructions

    OPERATION INSTRUCTIONS Control panels Indicating lights Program indicating light Heat indicating light Automatic humidifier indicating light (for ovens with this option) Program indicating light It indicates that the oven is working and that cooking time may be active. Heat indicating light Switches off each time the set temperature is reached in the cooking chamber.

  • Page 12: General Cooking Information

    Cooking temperature setting Turn the Thermostat Knob (Fig. 2) to the desired cooking temperature. Humidity/steam amount setting - Turn the Automatic Humidifier Knob (Fig. 3) to the desired humidity level (from 1 to 5). 1 being minimum humidity and 5 being maximum. By turning the knob to “5” automatic humidifier control is disabled and steam is generated continuously.
  • Page 13 Defrosting and then the thermostat knob to “off”. Turn the function selector knob to the symbol Cooking suggestions Convection cooking Heat is transmitted to food through pre-heated air, which is forcefully circulated in the cooking chamber. The heat reaches every part of the chamber evenly and quickly, to simultaneously cook different types of food arranged on several shelves (as long as their cooking temperature is the same), without mixing flavor and smells.

  • Page 14: Cleaning And Maintenance

    CLEANING AND MAINTENANCE WARNING Risk of electrocution. Disconnect the appliance's power supply before performing cleaning and maintenance operations. CAUTION The oven is not waterproof. Do not submerge in water, spray with water jets, or steam to clean the inside or outside of the oven. NOTES ...

  • Page 15: Side Supports

    Side supports 1) Loosen the (2) hex head bolts (turn counter-clockwise) that fasten the side support to the cooking chamber. 2) Pull the side supports towards the door to remove them from the air cover panel. 3) Remove the side supports from inside the oven and clean them with a mild detergent and hot water, using a soft bristle brush.

  • Page 16: Air Cover

    Air cover 1) Remove the side supports from the cooking chamber, following the “Side Supports“ instructions provided. 2) Remove the (4) screws that fasten the air cover to the cooking chamber. 3) Remove the air cover from inside the oven and clean it with a mild detergent and hot water, using a soft bristle brush.
  • Page 17 Door gasket - cleaning 1) Remove the gasket by pulling a small section until it is free from the guide. Continue pulling to fully remove the gasket. Please remember that the door gasket has a rigid profile with retainer fins (B). This profile must be pressed into the guide on the front of the cooking chamber.
  • Page 18 Internal door glass cleaning (For ovens with horizontal door handle & flap door) Before cleaning the inner door glass, let the door cool down completely. 1) Remove the upper and central screws on the door profiles, and partially loosen the lower screws on the door profiles.
  • Page 19 Internal door glass cleaning (For ovens with horizontal door handle & removable door glass) Before cleaning the inner door glass, let the door cool down completely. 1. Loosen the upper door profile screws. 2. Open the oven door, remove the inner glass by pulling slightly. 3.
  • Page 20 Door glass internal cleaning (For models with vertical door handle) Before cleaning the inner door glass, let the door cool down completely. 1) With the oven door closed, loosen the upper, central, and lower screws on the door profiles. 2) Use the handle to open the doors outer glass gently. 3) Clean the inner door glass with a mild detergent, warm water, and soft cloth.

  • Page 21: Troubleshooting

    TROUBLESHOOTING Type of fault Cause of the fault Corrective action Incorrect connection to the power Check connection to the mains. mains. Voltage not present. Restore power supply voltage. The oven does not work Safety thermal device triggered. Contact a skilled technician. Excessive heat at motor winding.
  • Page 22 6220-17 – Wiring Diagram Power terminal board "End of cooking" programmer Safety thermostat Oven thermostat "End of cooking" indicator light Thermostat indicator light Oven lighting lamp Radial motoventilator Circular heating-element...
  • Page 23 6240 – Wiring Diagram Power terminal board "End of cooking" programmer Safety thermostat Oven thermostat "End of cooking" indicator light Thermostat indicator light Oven lighting lamp Radial motoventilator Circular heating-element...
  • Page 24 6220-17 EXPLODED DRAWINGS 10353 10333 10338 10337 10281 10301 10234 10340 10300 10303 10254 10307 10338 10239 10251 10316 10264 10341 10282 10248 10248...
  • Page 25 6220-17 EXPLODED DRAWINGS 10244 10354 10292 10350 10284 00016600 10243 10287 10266 10252 10342 10302 10355 10342 10261 10293 10275 10362 10339 10252 10233 10277 10342 10305 10352 10355 10280 10363...
  • Page 26 6220-17 SPARE PARTS COMPONENT COMPONENT DESCRIPTION CODE KNOB TIME OR TEMP 10251 10252 DOOR HINGE BRACKET 10254 DOOR GLASS SPACER 10261 STRAIN RELIEF 10264 DOOR HANDLE 10266 EXHAUST PIPE 10362 SQUARE LIGHT ASSEMBLY 10275 WIRE BUSHING 00016600 POWER CORD 2” LEGS...
  • Page 27 6240 EXPLODED DRAWINGS 10365 10254 10367 10378 10365 10358 10382 10264 10375 10374 10377 10230 10377 10377 10380 10377 10366 10301 10239 10300 10377 10251 10377...
  • Page 28 6240 EXPLODED DRAWINGS 10284 10379 10372 10243 10386 10369 10368 10342 10350 10252 10279 10381 10384 10362 10342 10371 10370 10302 10261 10252 10384 10381 10367 10373 10280...
  • Page 29 6240 SPARE PARTS COMPONENT CODE COMPONENT DESCRIPTION 10251 HORIZONTAL STEM KNOB 10252 HINGE BRACKET 10254 DOOR GLASS SPACER BUFFER 10261 CABLE GLAND PG 13,5 10264 PIPE HANDLE D18 C/2 BLOCKS 10386 CHIMNEY TO EXHAUST STEAM 10362 COMPLETE LAMP HOLDER 10279 POWER CABLE L=2000 MM WITH DIE-CAST PLUG 300V 15A 10365 HINGE...

  • Page 30: Product Warranty

    The end user will obtain a Return Goods Authorization number from Nemco Customer Service to return the product to Nemco for inspection. Please be sure to use this number on the box and on paperwork sent with the unit. Return the unit to Nemco. The Nemco Service Department will determine if the problem is covered by the foregoing warranty.
  • Page 31 49228 8/30/23...

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6240

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