Metos 74/02CTG Installation And Operation Manual
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Metos 74/02CTG Installation And Operation Manual

Metos 74/02CTG Installation And Operation Manual

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SOLID TOPS
700 - Series
TYPE: 74/02CTG, 74/02TCTG, 74/02CTGG, 74/02+2CTGG, 74/02CTGE, 76/02CTG,
76/02CTGG, 76/02+4CTGG, 76/02TCTGG, 76/02CTGGE
Installation and Operation Manual
S/N:
Rev.: 1.0

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Summary of Contents for Metos 74/02CTG

  • Page 1 SOLID TOPS 700 - Series TYPE: 74/02CTG, 74/02TCTG, 74/02CTGG, 74/02+2CTGG, 74/02CTGE, 76/02CTG, 76/02CTGG, 76/02+4CTGG, 76/02TCTGG, 76/02CTGGE Installation and Operation Manual S/N: Rev.: 1.0...
  • Page 3 Dear Customer, Congratulations on deciding to choose a Metos appliance for your kitchen activities. You made an excellent choice. We will do our best to make you a satisfied Metos customer like thousands of customers we have around the world.
  • Page 4 27.2.2004 Rev. 1.0...

  • Page 5: Table Of Contents

    27.2.2004 Rev. 1. General ......................1 1.1 Symbols used in the manual ..................1 1.2 Symbols used on the appliance ..................1 1.3 Checking correspondence between the appliance and the manual ........ 2 2. Safety ......................3 2.1 Using the appliance safely ..................... 3 2.2 Safety instructions in case of malfunction ..............
  • Page 6 5.12 Checking the supply pressure of the gas after installation ........23 5.12.1 Initial phases only valid for models 76/02CTG, 76/02CTGG, 76/02TCTG, 76/02+4CTGG and 76/02CTGGE ................24 5.12.2 Initial phases only valid for models 74/02CTG, 74/02TCTG, 74/02CTGG, 74/02+2CTGG and 74/02CTGE ................... 25 5.12.3 Following phases valid for all models ............... 26 5.13 Gas technical specifications ..................
  • Page 7 27.2.2004 Rev. 7. Troubleshooting ..................43 9. Technical specifications ................81...
  • Page 8 27.2.2004 Rev.

  • Page 9: General

    27.2.2004 Rev. 1.0 General 1. General Read the instructions in this manual carefully, as they contain important information on how to install, use and service the appliance safely, properly, and effectively. Keep this manual in a safe place so that it can be used as reference by other operators of the appliance.

  • Page 10: Checking Correspondence Between The Appliance And The Manual

    27.2.2004 Rev. 1.0 General 1.3 Checking correspondence between the appliance and the manual The rating plate of the appliance shows its serial number. If the manuals are missing, you may order new ones from the manufacturer or your local representative. When ordering new manuals it is essential to quote the serial number shown on the rating plate.

  • Page 11: Safety

    27.2.2004 Rev. 1.0 Safety 2. Safety 2.1 Using the appliance safely Being an appliance designed only for professional use, it should be operated by qualified personnel exclusively. Never leave the appliance unattended while it is on. Do not move the appliance while hot. 2.2 Safety instructions in case of malfunction If the appliance will remain idle for some time or in the event of a failure, abnormal op- eration, etc., turn off the shutoff valve upstream of the appliance and disconnect it from...
  • Page 12 27.2.2004 Rev. 1.0 Safety...

  • Page 13: Functional Description

    27.2.2004 Rev. 1.0 Functional description 3. Functional description 3.1 Intended use of the appliance The appliance is designed for use in the gastronomy and confectionery industries only. 3.1.1 Prohibited use The manufacturer cannot be held liable for any faults caused by defective installation or inappropriate use of the appliance.

  • Page 14: Cooking Surfaces

    27.2.2004 Rev. 1.0 Functional description 3.2.2 Cooking surfaces Fig. 1 Burner rated 3.5 kW (open burners) Burner rated 5.6 kW (open burners) Burner rated 7.9 kW (oven) Burner rated 12 kW (solid top) Burner rated 5.6 kW (mini solid top) •...

  • Page 15: Electric Ovens

    27.2.2004 Rev. 1.0 Functional description 3.2.4 Electric ovens • Stainless steel GN 2/1 static oven with temperature adjustable from 50°C to 300°C (122°F to 572°F); • two sheathed heating units (top and bottom) separately adjustable through a selec- tor switch and controlled by a single thermostat; •...
  • Page 16 27.2.2004 Rev. 1.0 Functional description...

  • Page 17: Operating Instructions

    27.2.2004 Rev. 1.0 Operating instructions 4. Operating instructions 4.1 Before using the appliance 4.1.1 Preparing the appliance for use Before cooking food for the first time, we recommend cleaning the appliance thoroughly, and especially the oven cooking chamber. Remove all packaging materials and adhesive films from the appliance very carefully.

  • Page 18: Using The Appliance

    27.2.2004 Rev. 1.0 Operating instructions 4.2 Using the appliance 4.2.1 Operating controls By way of example, below are represented two of the most comprehensive appliances in this family. Refer to the "Installation and connection drawings" at the end of this manual to see a precise graphic representation of your specific appliance.

  • Page 19: Turning The Open Burners On And Off

    27.2.2004 Rev. 1.0 Operating instructions 4.2.2 Turning the open burners on and off • To light the pilot flame, press the knob and turn it anti-clockwise to the position shown as item 2 in Fig. 3; • hold down the knob and at the same time place a flame next to the pilot burner; •...

  • Page 20: Turning On The Gas Oven

    27.2.2004 Rev. 1.0 Operating instructions 4.2.4 Turning on the gas oven • To light the gas oven pilot flame, press and turn the knob anti-clockwise to the po- sition shown as item 2 in Fig. 4; • hold down the knob and at the same time push the ignition button (see item 8 in Fig.

  • Page 21: Turning On The Electric Oven

    27.2.2004 Rev. 1.0 Operating instructions 4.2.5 Turning on the electric oven Select the required heating direction using the knob shown as item 2 in Fig. 5. Set the cooking chamber temperature by turning the operating thermostat knob clockwise (item 3). The heating elements will start operating and both the power indicator light (item 4) and the oven operation indicator light (item 5) will light up.

  • Page 22: Safety Thermostat

    27.2.2004 Rev. 1.0 Operating instructions 4.2.7 Safety thermostat This appliance is equipped with a safety thermostat. Should the temperature inside the cooking chamber exceed a limit value, all oven functions will be disabled and only the power indicator light will remain on (item 4 in Fig. 5 further above). This feature is a safe- ty precaution which protects the appliance in the event of a failure or use against the in- structions.

  • Page 23: Idle Period

    27.2.2004 Rev. 1.0 Operating instructions Routine cleaning Cleaning the appliance thoroughly every day will keep it in perfect condition and increase its lifetime. Clean the appliance with a damp cloth using water and soap or detergents, provided that they are not acid or abrasive as discussed further above. Such detergents should not even be used to wash the floor near the appliance, as their fumes may deposit on the steel surfaces and damage them.

  • Page 24: Periodic Maintenance

    27.2.2004 Rev. 1.0 Operating instructions 4.3.3 Periodic maintenance Only qualified personnel are allowed to carry out service and maintenance operations. The following maintenance operations should be performed at least once a year: • checking for proper operation of all control and safety devices; •...

  • Page 25: Installation

    27.2.2004 Rev. 1.0 Installation 5. Installation 5.1 General information The manufacturer cannot be held liable for any damage to property or injury to persons deriving from installation errors or from inappropriate use of the appliance and is not re- sponsible for any faults caused by defective installation. In such cases, the warranty shall be null and void.

  • Page 26: Possible Environmental Interference

    27.2.2004 Rev. 1.0 Installation 5.3 Possible environmental interference If the appliance is installed with its sides next to flammable walls (made of wood or sim- ilar materials) or to heat-sensitive walls (made of plasterboard or similar materials), suit- able protective measures should be taken to keep such walls undamaged. Therefore, apply a coating to insulate the walls from radiative heat or keep a minimum clearance of 100 mm (4") from the side and back panels of the appliance.

  • Page 27: Positioning The Appliance

    27.2.2004 Rev. 1.0 Installation 5.9 Positioning the appliance Level the appliance using a bubble level. Height can be adjusted with the help of the ad- justable feet. 5.10 Electrical connections (versions with electric oven and/or hot cup- board) 5.10.1 General information The appliance should be operated only when properly connected to an effective earthing (grounding) system.

  • Page 28: Connecting A Type "Y" Power Cord To The Appliance's Terminal Block

    27.2.2004 Rev. 1.0 Installation 5.10.2 Connecting a type "Y" power cord to the appliance’s terminal block The appliance is supplied complete with power cord. The power cord can only be replaced by the manufacturer, by the manufacturer’s service or by a technician having similar qual- ifications.
  • Page 29 27.2.2004 Rev. 1.0 Installation Instructions to connect the power cord, applicable to model 76/02CTGGE only • Disconnect power; • remove the right side panel of the appliance; • unscrew the 4 screws securing the cover of the electrical box (item 1 in Fig. 8); •...

  • Page 30: Gas Supply Connection

    27.2.2004 Rev. 1.0 Installation 5.11 Gas supply connection This appliance is designed to burn natural and liquid gas. To find out the category to which this appliance belongs in the country where it is installed, please refer to the table below.

  • Page 31: Changing Gas Inlet Connection From The Right To The Left (Optional)

    27.2.2004 Rev. 1.0 Installation The appliance should be connected to the gas supply by means of metal pipes --either rigid or flexible-- having an adequate diameter (see "Technical specifications table" at the end of this manual). When joining pipe fittings, never use oakum or Teflon as their residues could get to the valve and jeopardise its operation.

  • Page 32: Initial Phases Only Valid For Models 76/02Ctg, 76/02Ctgg, 76/02Tctg, 76/02+4Ctgg And 76/02Ctgge

    27.2.2004 Rev. 1.0 Installation 5.12.1 Initial phases only valid for models 76/02CTG, 76/02CTGG, 76/02TCTG, 76/02+4CTGG and 76/02CTGGE • Remove the left grate, the burners and the left drip pan; • unscrew the screw (item 3 in Fig. 10) of the pressure port (item 2); Fig.

  • Page 33: Initial Phases Only Valid For Models 74/02Ctg, 74/02Tctg, 74/02Ctgg, 74/02+2Ctgg And 74/02Ctge

    27.2.2004 Rev. 1.0 Installation 5.12.2 Initial phases only valid for models 74/02CTG, 74/02TCTG, 74/02CTGG, 74/02+2CTGG and 74/02CTGE • Remove the knobs, open the doors and remove the front panel by unscrewing the screws in item 1 of Fig. 11; Fig. 11 Screws securing the front panel •...

  • Page 34: Following Phases Valid For All Models

    27.2.2004 Rev. 1.0 Installation 5.12.3 Following phases valid for all models • Place the manometer; • start up the unit by following the instructions in the user's manual; • check supply pressure; • if the actual pressure is included in the values previously shown in the "Table 1: gas categories and pressure values", the unit may be turned on, otherwise, contact the gas utility company;...

  • Page 35: Gas Technical Specifications

    27.2.2004 Rev. 1.0 Installation 5.13 Gas technical specifications The appliance should be started up at its rated output with the nozzles shown in "Table 2: burner specifications" below. All the necessary nozzles are provided in a small bag to- gether with the appliance. The nozzles of the main burners are marked in hundredths of mm, while those of pilot flames have a reference number.
  • Page 36 27.2.2004 Rev. 1.0 Installation Table 2: burner specifications Oven Mini Solid solid G30/31 50 mbar Rated pressure (mbar) Reduced pressure (mbar), minimum Pilot 16·2 16·2 16·2 Nozzles (1/100 mm) Max. Min. Primary air distance (mm) G20 25mbar Rated pressure (mbar) Reduced pressure (mbar), minimum Pilot 27·2...

  • Page 37: Checking Operation

    27.2.2004 Rev. 1.0 Installation 5.14 Checking operation Start up the appliance by following the instructions given in chapter "Using the ap- pliance"; check for gas leaks; check for flame stability throughout the whole control range by going from high to low. 5.15 Staff training Inform all personnel assigned to operate the appliance on how to use it by referring to this user’s manual and hand them out the manual.
  • Page 38 27.2.2004 Rev. 1.0 Installation...

  • Page 39: Adjustment Instructions

    27.2.2004 Rev. 1.0 Adjustment instructions 6. Adjustment instructions To convert (for example) from natural gas to liquid gas, you need to change the nozzles of main and pilot burners. The appropriate nozzles are shown in "Table 2: burner speci- fications".

  • Page 40: Replacing Open Burner Nozzles

    27.2.2004 Rev. 1.0 Adjustment instructions 6.1 Replacing open burner nozzles • Remove the grate, the flame spreader (item 1 in Fig. 13), the burner (item 2) and the drip pan; • unscrew the screw (item 5 in Fig. 13) that fixes the primary air sleeve (item 6) and remove the sleeve;...
  • Page 41 27.2.2004 Rev. 1.0 Adjustment instructions • adjust primary air distance (H in Fig. 14) according to the values shown in "Table 2: burner specifications". Fig. 14 Air sleeve...

  • Page 42: Replacing The Nozzle Of Open Burner Pilot Flames

    27.2.2004 Rev. 1.0 Adjustment instructions 6.2 Replacing the nozzle of open burner pilot flames • Unscrew the sealing screw (item 8 in Fig. 15) using an 11-mm spanner, and re- move it; • unscrew the nozzle (item 6) with a flat-blade screwdriver and remove it; •...

  • Page 43: Replacing Oven Burner Nozzles

    27.2.2004 Rev. 1.0 Adjustment instructions 6.3 Replacing oven burner nozzles • Remove the lower front panel (item 1 in Fig. 16) by unscrewing the several screws shown as item 2. Fig. 16 Lower front panel Fixing screws • open the oven door and take out the bottom plates;...
  • Page 44 27.2.2004 Rev. 1.0 Adjustment instructions • unscrew the screw (item 10 in Fig. 18) fixing the primary air sleeve (item 9 in Fig. 18) and remove it; • unscrew the nozzle (item 6 in Fig. 17) using a 13-mm spanner, and fit a suitable nozzle (see "Table 2: burner specifications");...
  • Page 45 27.2.2004 Rev. 1.0 Adjustment instructions • adjust primary air distance (H in Fig. 18) according to the values shown in "Table 2: burner specifications"; Fig. 18 Primary air sleeve Fixing screw Fixed air register for G25 natural gases Air register fixing holes •...

  • Page 46: Replacing The Nozzle Of The Solid Top Burner

    27.2.2004 Rev. 1.0 Adjustment instructions 6.4 Replacing the nozzle of the solid top burner • Remove the knobs, unscrew the screws fixing the front panel and remove it; • the burner may be accessed both from the front and from the right side of the flue box;...

  • Page 47: Replacing The Nozzle Of The Oven Or Solid Top Pilot Flame

    27.2.2004 Rev. 1.0 Adjustment instructions 6.5 Replacing the nozzle of the oven or solid top pilot flame • Place a 12-mm spanner on the pilot burner body (item 1 in Fig. 20) to counterbal- ance torsional stress; • with a 10-mm spanner, unscrew the nut (item 5 in Fig. 20) fixing the thermocouple and remove the thermocouple;...

  • Page 48: Adjusting Minimum Output

    27.2.2004 Rev. 1.0 Adjustment instructions 6.6 Adjusting minimum output If the appliance will be using liquid gases, remove the knobs, insert a screwdriver through the hole and completely screw down the screw shown as item 1 in Fig. 21. Fig. 21 Screw to adjust minimum output Gas inlet pipe fitting Thermocouple pipe fitting...

  • Page 49: Functional Check

    27.2.2004 Rev. 1.0 Adjustment instructions • connect a liquid-filled pressure gauge (for example, a U-shaped pressure gauge, minimum scale division 0.1 mbar) or a digital gauge; • start up the appliance by following the instructions in the user’s manual. Gas pressure at minimum burner output should match the pressure values shown in "Table 2: burner specifications"...
  • Page 50 27.2.2004 Rev. 1.0 Adjustment instructions...

  • Page 51: Troubleshooting

    27.2.2004 Rev. 1.0 Troubleshooting 7. Troubleshooting Users are not allowed to perform any maintenance operations on any parts of this appli- ance. Maintenance should be carried out by an authorized technician. TROUBLE POSSIBLE CAUSES WHAT TO DO FOR THE USER FOR THE INSTALLER OPEN BURNERS Pilot burner won’t...
  • Page 52 27.2.2004 Rev. 1.0 Troubleshooting TROUBLE POSSIBLE CAUSES WHAT TO DO FOR THE USER FOR THE INSTALLER SOLID TOP and GAS OVEN Pilot flame won’t light: piezoelectric ignition device replace it; faulty; the ignition electrode is not check the connection; securely fixed, or the wire connection is wrong;...

  • Page 53: Electric Oven

    27.2.2004 Rev. 1.0 Troubleshooting TROUBLE POSSIBLE CAUSES WHAT TO DO FOR THE USER FOR THE INSTALLER ELECTRIC OVEN No heating: no power; check that the appliance is be- ing powered. A temperature is set but safety thermostat reset the thermostat. the oven won’t turn on: tripped;...
  • Page 54 27.2.2004 Rev. 1.0 Troubleshooting...

  • Page 55: Technical Specifications

    27.2.2004 Rev. 1.0 Technical specifications 9. Technical specifications Connection diagrams ......82 Installation and connection drawings. 86 Technical specifications table....97 CE conformity declaration ....99...
  • Page 56 SC00414: wiring diagram 74/02CTGE - 3/N/PE ~400V 50-60 Hz...
  • Page 57 27.2.2004 Rev. 1.0 Technical specifications LE00385: key to wiring diagram SC00414 74/02CTGE - 3/N/PE ~400V 50-60 Hz Letter code Art. no. Descriptions Specifications A044601 Control thermostat 50 - 275°C - 3F A046150 Safety thermostat 350°C - 3F A038506 Line pilot lamp 400V - 150°C A038506 Operation pilot lamp...
  • Page 58 SC00415: wiring diagram 76/02CTGGE - 1/N/PE ~230V 50-60Hz...
  • Page 59 27.2.2004 Rev. 1.0 Technical specifications LE00386: key to wiring diagram SC00415 76/02CTGGE - 1/N/PE ~230V 50-60Hz Letter code Art. no. Descriptions Specifications A046050 Control thermostat 30 - 90°C - 1F A038506 Line pilot lamp 400V - 150°C A038506 Operation pilot lamp 400V - 150°C A036800 Heating element...
  • Page 60 27.2.2004 Rev. 1.0 Technical specifications Installation and connection drawing 74/02CTG Gas supply connection Distance between feet Rating plate...
  • Page 61 27.2.2004 Rev. 1.0 Technical specifications Installation and connection drawing 74/02TCTG Gas supply connection Distance between feet Rating plate...
  • Page 62 27.2.2004 Rev. 1.0 Technical specifications Installation and connection drawing 74/02CTGG Gas supply connection Distance between feet Rating plate...
  • Page 63 27.2.2004 Rev. 1.0 Technical specifications Installation and connection drawing 74/02+2CTGG Gas supply connection Distance between feet Distance between burners Rating plate...
  • Page 64 27.2.2004 Rev. 1.0 Technical specifications Installation and connection drawing 74/02CTGE Gas supply connection Connection cable entry Distance between feet Distance between burners Rating plate Terminal block...
  • Page 65 27.2.2004 Rev. 1.0 Technical specifications Installation and connection drawing 76/02CTG Gas supply connection Distance between feet Distance between burners Rating plate...
  • Page 66 27.2.2004 Rev. 1.0 Technical specifications Installation and connection drawing 76/02CTGG Gas supply connection Distance between feet Distance between burners Rating plate...
  • Page 67 27.2.2004 Rev. 1.0 Technical specifications Installation and connection drawing 76/02TCTGG Gas supply connection Distance between feet Distance between burners Rating plate...
  • Page 68 27.2.2004 Rev. 1.0 Technical specifications Installation and connection drawing 76/02+4CTGG Gas supply connection Distance between feet Distance between burners Rating plate...
  • Page 69 27.2.2004 Rev. 1.0 Technical specifications Installation and connection drawing 76/02CTGGE Gas supply connection Connection cable entry Distance between feet Distance between burners Rating plate...
  • Page 70 27.2.2004 Rev. 1.0 Technical specifications...
  • Page 71 Construction type Italy 74ST,74STT,74STE Construction type Italy 74STG,76ST,76STG,76STTG,76STGE Construction type Germany Construction type valid for other countries Gas inlet 1/2" G ISO R7 700new=700 - Series 74ST=74/02CTG, 74STT=74/02TCTG, 74STG=74/02CTGG, 74STG+2=74/02+2CTGG, 74STE=74/02CTGE, 76ST=76/02CTG, 76STG=76/02CTGG, 76STG+4=76/02+4CTGG, 76STTG=76/02TCTGG, 76STGE=76/02CTGGE A=3/N/PE~400/230V 50Hz, H=3/PE~230V 50Hz...
  • Page 72 27.2.2004 Rev. 1.0 Technical specifications...
  • Page 73 Wir erklären, dass dieses Gerät: Placa radiante a gas gama 700 new Se declara que el siguiente aparato: Mod.: 74/02CTG, 74/02TCTG, 74/02CTGG, 74/02+2CTGG, 2FX+PCF, 74/02CTGE, 76/02CTG, 76/02CTGG, 76/02TCTGG, 76/02+4CTGG, 4FX+PCF, 76/02CTGGE è conforme alla direttiva 90/396 CEE is in specification with the directive 90/396 CEE...

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