OG7502/OG7504 ATMOSPHERIC STEAMER
Contents
1. Lincat OG7502 0G7504 ATMOSPHERIC STEAMER USER INSTALLATION SERVICING AND CONVERSION INSTRUCTIONS This is just one of over 300 different items of catering equipment available which is constantly being extended and improved Details are available from your local distributor or direct from us Used for the purposes for which it is intended and with careful maintenance as outlined in this User Guide your Lincat product will give you years of trouble free service o E NOTE Please read all of the safety and operating instructions carefully before using this product Please pay particular attention to all sections of this User Guide that carry warning symbols and notices WARNING This is a Warning symbol This symbol is used throughout the user guide whenever there is a risk of personal injury Ensure that these warnings are read and understood at all times CAUTION This is a Caution symbol This symbol is used throughout the user guide whenever there is a risk damaging your Lincat product Ensure that these warnings are read and understood at all times NOTE This is a Note symbol This symbol is used throughout the user guide to provide additional information hints and tips 15415 ECN3426 2 CONTENTS Contents Page Customer 2 Warnings 3 Technical AR essenc2. handle and allow steam to vent around door opening Wait at least 15 20 seconds before slowly opening door fully This precaution prevents a sudden discharge of steam into the operators face Always open door slowly and in two stages CLEANING It is recommended that the appliance be drained and cleaned at the end of each working day in order to prevent any build up of sediment and or grease Ensure the appliance is cool and the gas and water supplies are isolated before commencing cleaning Open drain taps remove oven furniture and clean all inner surfaces using a warm detergent solution Rinse and dry thoroughly After use wash the unit down with a warm detergent solution APPLIANCE USE Do not use products containing chlorine or hydrochloric acid clean stainless steel surfaces Do not clean the appliance using a water jet 15415 ECN3426 10 SERVICING For information on authorised service agents please see the section at the end of these instructions ROUTINE SERVICE 1 Carry out a general check of the installation paying particular attention to the following e has the unit been installed using the correct gas hose e does the unit have a safety chain e does the unit have separate isolation valves for gas and water 2 Check all components for correct operation and replace where necessary following the appropriate instructions 3 Visually check the burner operation closely observe
3. Lincat products are functionally checked during manufacture commissioning must include an operational check of all controls e Light the unit several times as per instructions checking for correct and smooth operation CONVERSION OF GAS TYPES WARNING This unit is supplied ready for installation to the supply specified at the time of ordering Should conversion be necessary please follow the instructions below Conversion of this appliance must only be carried out by a qualified gas engineer e Remove main burner jets and aluminium washer Do not re use washer Care must be taken not to cross thread the jets when refitting e Remove pilot jet and fit replacement Remove data plate amp sticker from the unit and replace with data plate and sticker supplied For Natural to Propane Gas only remove the gas control regulator screw and replace the spring with the one provided Carefully re assemble Re set the burner pressure see table below via the burner test nipple and the gas controls governor Replace the governor cap on completion e Test unit for gas soundness Model Gas Pressure Injector 2 Part No Regulated Main 2 80 280 JE153 demos 11 860 ee pa Pilot 41 JE57 tombar OG7504 Main 2 00 200 JE98 G31 37 mbar Pilot 30 JE56 25 mbar 15415 ECN3426 7 USER INSTRUCTION APPLIANCE USE This appliance is only for professional use and should only be used by qualified perso
4. after approximately 10 seconds Caution The re start interlock device prevents the appliance from re igniting until the flame supervision device has interrupted the gas flow After this stage it is possible to re ignite the appliance Standby Turn the control knob 6 clockwise to the pilot position Note Should the safety cut out thermostat 2 operate during normal use the unit will shut down To re light the unit re set the safety cut out thermostat by depressing the red re set button 2 The re set button is located behind the lower compartment door at the rear of the appliance see Fig 3 SHUT DOWN To turn the unit off completely slightly depress the control knob 6 and rotate to the OFF position indicated bye Close gas and water isolating valves Drain tank see Fig 6 and thoroughly dry inside of tank Warning When operating the gas control valve behind the door care must be taken to avoid accidentally touching internal surfaces which become hot during normal operation KNOB INDICATORS Fig 5 15415 ECN3426 9 USER INSTRUCTION cont DRAINING OVEN CHAMBER Before draining it is recommended that the appliance is allowed to cool To drain place a suitable receptacle beneath the valve Push catch to the left and open drain handle Fig 6 Fig 7 OPENING THE STEAMER DOOR WHEN HOT IMPORTANT Do not fully open door when steamer is hot First slacken off door
5. correct and tight Is there continuity through thermostat Correct and retry Replace thermostat Is the pilot flame and retry impinging on the thermopile Rectify and retry Check output 200 400mV from thermopile while the pilot is in operation If reading is lower replace thermopile IS415 ECN3426 17 FAULT FINDING cont Wiring Diagrams GAS MILLIVOLT CIRCUIT THERMOPILE WIRES Fig 7 15415 ECN3426 18 SERVICE INFORMATION Gas catering equipment should be routinely serviced to ensure a long trouble free life It is recommended that this appliance is serviced every 6 months by a competent gas engineer For help regarding the installation maintenance and use of your LINCAT equipment please call LINCAT GROUP SERVICE HELP DESK 44 0 1522 875520 AUTHORISED SERVICE AGENTS We recommend that all servicing other than our authorised service agents carry out routine cleaning We cannot accept responsibility for work carried out by other persons Please quote both the model and serial number from the data plate attached to the unit Give brief details of the service requirement If possible please quote the product code of the part number you require Work carried out under warranty will normally be undertaken only during normal working hours Mo
6. must be earthed to prevent shock Do not connect directly to any flue ducting or mechanical extraction system Installation should allow for a sufficient flow of fresh air for gas combustion Parts which have been protected by the manufacturer or his agent must not be adjusted by the installer or user 15415 ECN3426 3 TECHNICAL DATA Model OG7502 OG7504 Dimensions Overall height mm 1600 Width mm 600 Depth mm 950 750 Weight kg 123 kg Nett 110 kg Nett Usable oven capacity w x d x h mm 545 x 680 x 720 545 x 480 x 720 Oven shelf size mm 650 x 530 434 x 530 Heat Input Total heat input Natural Gross 13 0 kW Total heat input Propane Gross 13 0 kW Connection and Operating Pressures Gas inlet connection Vo BSPT Male Supply Pressure Natural 20 mbar Operating Pressure Natural 16 mbar Supply Pressure Propane 37 mbar Operating Pressure Propane 25 mbar Gas Consumption Total gas rate Natural 1 24 m h Total gas rate Propane 0 93 kg h Water Connection Inlet Connection 15mm Pressure 20 1000kPa 0 2 10bar 15415 ECN3426 4 COMMISSIONING PREPARATION Remove all packaging and protective coatings prior to installation VENTILATION The area in which this equipment is to be installed should have sufficient fixed ventilation to comply with local legislation re
7. no sharp bends and is correctly located in its holder Piezo Ignitor e Inthe lower chamber undo the front 2 screws securing the lower hinged drop down panel e Disconnect the ignitor lead e Undo locknut and remove piezo ignitor e Re assemble in reverse order Float Valve Remove both back panels Lift off the reservoir cover plate secured by a single screw and the inner cover Disconnect the water hose Undo the outer fixing nut and lift away together with the ball float Re assemble in reverse order 15415 ECN3426 13 COMPONENT REPLACEMENT cont Ball Float e Proceed as above e Unscrew the ball float from the valve arm boss e When replacing ensure that the same geometry is maintained e Re assemble in reverse order Lower Compartment Door Open door and remove 2 screws securing top trim to chassis Lift door away together with securing trim taking care not to lose door bushes Re assemble in reverse order At this stage the door is reversible Upper Compartment Door e Open door and remove oven furniture e Slacken off the screws securing the lower hinge block whilst taking the weight of the door e The door can be lifted away Take care not to lose door bushes e Re assemble in reverse order e At this stage the door is reversible 15415 ECN3426 14 SPARE PARTS LIST Description 0G7502 0G7504 Shelf
8. than 100mm from the sides and rear A minimum clear space of 600mm to the front to allow for safe operation WATER SUPPLY AND CONNECTION Install in accordance with BS EN 1717 and the National Water Regulations in Use Connection is at the rear of the unit via a 15mm compression fitting with check valve When making the connection to the appliance an isolating cock should be fitted into the supply line close to the unit for emergency shutdown or servicing purposes GAS SUPPLY AND CONNECTION Connection is at the rear of the unit via a 1 2 G male thread Connection shall comply with local regulations When making the connection to the appliance an isolating cock should be fitted into the supply line close to the unit for emergency shutdown or servicing purposes WATER 15MM COMPRESSION Fig 1 15415 ECN3426 6 INSTALLATION cont SUPPLY PRESSURES e To gain access to the gas pressure test nipple open the lower compartment door The nipple is situated on the control valve e Remove the blanking screw and attach a pressure gauge to the boss of the test nipple e Light the burner e With main burner at maximum adjust the onboard governor to 15mbar for Natural gas and 25mbar for Propane gas _ PRESSURE TEST POINTS 2 HL d GOVENOR ADJUSTMENT OUT IN DON lt dl Fig 2 HL C Y LOd OPERATIONAL CHECK Although all
9. 10mm spanner e Re fit components Perform gas soundness test of circuit prior to operation 15415 ECN3426 12 COMPONENT REPLACEMENT cont Ignitor Electrode e Remove the Stainless amp Mild Steel covers secured by 4 amp 7 screws respectively e Disconnect wire from electrode e Undo electrode from pilot assembly using a 10mm spanner e Re assemble in reverse order Thermostat e Working in the oven chamber remove the oven furniture and disconnect the thermostat phial from its holder e Inthe lower chamber undo the 2 screws securing the hinged drop down panel e Undo the 2 screws securing the thermostat to its bracket e Disconnect the wires noting their position e Remove the upper back panel secured with 12 screws e Withdraw the phial through its gland e Re assemble in reverse order e Ensure that the thermostat phial is not kinked has no sharp bends and is correctly located in its holder Safety Thermostat e Working in the oven chamber remove the oven furniture and disconnect the thermostat phial from its clip taking note of its position Working from the rear of the appliance remove both back panels Undo the 2 screws securing the thermostat bracket to the cabinet Undo the 2 screws securing the thermostat to the bracket Disconnect the wires noting their position Withdraw the phial through its gland Re assemble in reverse order Ensure that the thermostat phial is not kinked has
10. SH116 SH114 Shelf Rack SH117 Door Bush BU55 Oven Burner BU77 Check Valve CV03 Float Valve FL29 Ball Float FL30 Ignitor Lead IG18 Piezo Ignitor IG38 Thermocouple Interrupter INO8 Burner Injector Natural JE153 Burner Injector Propane JE98 Pilot Injector Natural JE57 Pilot Injector Propane JE56 Magnetic Catch MCO1 Pilot Burner P108 Door Seal SE38 Governor Spring Propane SP65 Thermocouple TC40 Thermopile TC41 Safety Thermostat TH73 Operating Thermostat TH77 Valve VA20 IS415 ECN3426 15 FAULT FINDING Explanation of the Control System The gas circuit in this Steamer is operated by two millivolt systems The first consists of an interrupted thermocouple the pilot burner and the gas control Heat from the pilot flame acting on the thermocouple generates a 15 20mV electrical potential This millivolt system connected to the gas control operates the first solenoid that allows gas to the pilot burner The over temperature stat is included in this system which operates via the interrupted thermocouple The first solenoid operates as the safety device which shuts down in the event of a thermocouple failure or if the over temperature stat goes open circuit The secondary millivolt system consists of a thermopile acting through the gas control via the control thermostat Heat from the pilot flame acting on the thermopile generates a 500 700mV electrical potential This millivolt system connected to th
11. e gas control operates the secondary solenoid that passes gas to the main burners The system is interrupted by the control thermostat as it cycles thereby opening and closing the gas supply to the main burners The following trouble shooting flow charts are designed to give assistance on the most probable cause of failure of the gas circuit Use the step by step instructions to quickly pinpoint problems and the advice to help in taking the appropriate action to rectify them Piezo Ignitor not sparking Is there a short in the High Tension Lead Replace Lead If no spark is generated at all replace Piezo Ignitor Replace Electrode 15415 ECN3426 16 FAULT FINDING cont Pilot burner will not light or stay lit Are the thermocouple Interrupter connections secure o Is there gas at the pilot when holding control knob in the Tighten connection pilot position Very little Check supply Check overtemperature Check supply stat for open circuit Y Check pilot jet for blockage and clean where voltage minium 15mV necessary Check thermocouple If all of the above are OK the control valve may be faulty Main burner will not light Is the gas control set to the on position Has the limit stat operated Set to on position and retry Are the thermopile thermocouple connections
12. e the Stainless Steel cover secured by 4 screws Remove the Mild Steel cover plate secured by 7 screws At this stage the injector with its washer can be removed using a 12mm spanner Remove the nut using an 8mm spanner securing the RH side of the burner Undo the thermocouple using a 10mm spanner Disconnect the ignitor lead from the electrode Undo the pilot pipe using a 10mm spanner taking care not to lose the pilot injector Undo the gas supply coupling to the burner Undo the 2 screws below the LH side of the burner The burner together with the pilot assembly can now be withdrawn Re assemble in the reverse order Perform gas soundness test of circuit prior to operation of appliance Pilot Assembly e Proceed as described above e Once the burner together with the pilot assembly has been removed the pilot assembly can be removed from the burner by undoing the 2 fixing screws e Re assemble in reverse order e Perform gas soundness test of circuit prior to operation of appliance Thermocouple e Remove the Stainless amp Mild Steel covers secured by 4 amp 7 screws respectively e Undo thermocouple from the valve body using a 9mm spanner e Undo thermocouple from the pilot assembly using a 10mm spanner e Re assemble in reverse order Thermopile e Remove the Stainless amp Mild Steel covers secured by 4 amp 7 screws respectively e Disconnect wires from valve noting their position e Undo thermopile from pilot assembly using a
13. es 4 COMMISSIONING ccociionoioronanondnacorcinocanacenanonocaroindana Ka Baka Kana ica cams 5 Check List of 5 AAA ia 6 7 Conversion Of Gas 7 A 8 10 SOIVICING PA nn Ann 11 Component Replacement 12 14 Spare Parts Nili ro idad 15 Fault Fim ii aaa 16 18 Service INTOrMAtlON cicicicosonacarocanaresironia nena ca nica nia nona caricias 19 A Kukuza 19 WARNINGS AND PRECAUTIONS It is mandatory that all appliances are installed commissioned and serviced by a qualified and competent person as defined by the regulations in force in the country of installation Failure to comply will invalidate the warranty A WARNING This appliance must be installed by a competent installation engineer in accordance with the installation instructions and should conform to the following reguirements Do not obstruct or block the appliance flue Installation must include sufficient ventilation to prevent the occurrence of unacceptable concentrations of substances harmful to health in the room in which they are installed It is recommended that this appliance is sited under an extraction canopy for the removal of combustion products After operation some parts of the appliance will remain hot for a period of time Please take care to avoid accidental burns CAUTION All equipment
14. nday to Friday 8 30 a m 5 30 p m CONDITIONS OF GUARANTEE The guarantee does not cover 1 Accidental breakage or damage 2 Operational misuse wear and tear from normal usage incorrect adjustment or neglect 3 Incorrect installation maintenance modification or unauthorised service work 15415 ECN3426 19 15415 ECN3426 Notes 20
15. nnel Ensure that the person responsible understands how to light safely operate clean and shutdown the appliance and is made aware of the position and operation of the isolating valves gas water amp electricity in the event of an emergency CONTROLS Fig 3 1 Drain Valve Drip Trough 2 Re Set Button Safety Cut Out Thermostat 3 Drain Valve Oven Chamber 4 Piezo Ignitor 5 Control Knob 6 Burner Pilot Viewing Hole 7 Check Valve c w Tap 8 Water Inlet Tap WATER LEVEL WATER LEVEL PLATE 15415 ECN3426 8 USER INSTRUCTION cont LIGHTING SEQUENCE Please ensure that the gas and water isolation valves for the appliance are turned to the OPEN or ON position before attempting to light the appliance DO NOT OPERATE WHEN TANK IS EMPTY Open the lower compartment door to gain access to the controls Check water level is between indicator marks see Fig 4 Push in the control knob 6 then rotate anti clockwise to the pilot position Ignite the pilot by depressing the piezo ignition switch 5 If the pilot fails to ignite turn the control knob to the OFF position and repeat After ignition hold the knob in for approximately 20 seconds to ensure that the pilot has established correctly Release the knob and fully turn anti clockwise to the ON position co BLE Note The control valve is fitted with a step opening ignition device which reaches full rate
16. quirements It is recommended that a room or internal space be provided with a minimum free area of 4 5cm kW 3 400Btu hr of total heat input CHECK LIST OF ENCLOSURES Please ensure the following items are included with this piece of equipment Model 097502 097504 Warranty 1 User Instructions 1 SERIAL NUMBER the top right hand corner of the data plate located behind the lower door on the LH chassis leg Please record that number in the space provided should it be required for future reference NOTE Each appliance manufactured at Lincat has a unique identifying number found in Serial Number MARK OF CONFIDENCE Every single product that leaves our factory bears a serial plate showing the 5 assemblers initials It s a mark of confidence we have in our people and our manufacturing process 15415 ECN3426 5 INSTALLATION SITING The installer must ensure that all regulations are met and that there is an unobstructed minimum distance of 400mm from the top of the flue to the ceiling which must be of non combustible material The appliance should be installed on a level surface ensuring the unit is stable and firmly located It should be well lit draught free and positioned to minimise the possibility of accidental touching Any partitions walls or kitchen furniture in close proximity must be of non combustible materials and not be closer
17. the flame picture and look for evidence of debris or damage Remove burner see page 12 and clean or replace as necessary 4 Visually check the injectors and replace see page 12 or clean as necessary clean using a brush with nylon bristles or similar Avoid using metal reamers or wire as this may damage or increase the orifice size 5 Check the burner pressure and adjust where necessary with the unit in full operation at the test nipple located on the valve See page 7 6 Check the alignment of the thermocouple and electrode within the pilot assembly Adjust if necessary 7 Ensure that the flue is clear 8 Ensure that all water carrying components are sound and free from leaks 9 Check correct operation of the float valve 10 Carry out a gas soundness check 15415 ECN3426 11 COMPONENT REPLACEMENT Ensure that the gas water and electricity supplies to the unit have been turned off before removing or dismantling any components Control Valve Undo the thermocouple and remove thermopile wires noting their position Disconnect the gas supply burner feed and pilot pipes Remove the 4 screws securing the valve to the chassis Remove brass fittings from the old valve and fit these to the replacement valve Note Replacement valves are not fitted with the brass fittings Re assemble in the reverse order e Perform gas soundness test of circuit prior to operation of appliance Burner amp Injector e Remov
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