installation and user instructions for df7 gas fryer
Contents
1. 1 To access the pressure test points take off control panel as follows Drain tank and point drain tap levers directly forward Remove control knobs Unscrew screws beneath control panel front flange Lift control panel away at the bottom and disengage tabs at the top Disconnect igniter leads if necessary 2 Use the test point provided on the gas control valves marked IN Fig 1 A to check the supply inlet pressure Refer to technical data table on page 16 Note An external regulator should be fitted to the fryer if the inlet pressure exceeds 50mbar 3 Use the test point marked OUT Fig 1 B to set the unit to the appropriate burner pressure 4 Adjustment is made via the valve s onboard governor which is situated centrally on the valve Fig 1 C 5 Remove the governor cap and turn the screw clockwise to increase the outlet pressure and anticlockwise to reduce it 6 With one main burner lit refer to operating instructions page 8 adjust the burner pressure at the corresponding valve by the method described above to the appropriate value of 25mbar for Propane gas and 15mbar for Natural gas Repeat procedure for the other burner using the other valve 7 After setting ensure each governor cap is properly secured and the blanking screws replaced in the test points Fig 1 KA IS aS A gB mp HEAT INPUT The total nominal gross heat input for the appliances are as follows Models DF2. Thermostat Knob Gas Control Valve Igniter Button Pilot Viewing Window Drain Valve Blanking Cap Drain Valve Operating Handle Drain Valve Safety Latch Limit Stat Reset Button GO 5d Qv DAC S Gee pas IS356 ECN3258 8 LIGHTING of the APPLIANCE Please ensure that the gas isolation valve for the appliance is turned to the open position before attempting to light this unit 1 Ensure that the thermostat control knob Fig 2 1 is in the OFF position Ensure the gas valve control knob Fig 2 2 is in the off position Fig 3 A Push in and turn anti clockwise to the Pilot position Fig 3 B The knob will now depress further 3 Keeping the pilot control knob depressed press the piezo ignition button Fig 2 3 4 Ensure the pilot flame is alight a blue flame can be seen when looking into the pilot viewing window Fig 2 4 Hold the pilot control knob in for 20 seconds to establish the pilot flame 5 When the pilot is lit release the pilot control knob and continue to turn fully anti clockwise to the ON position Fig 3 C 6 Ifthe pilot flame fails to remain lit return the pilot control knob to the off position and repeat the process allowing a short period of time for the control to reset 7 To operate the main burner turn the thermostat control knob Fig 2 1 to the required temperature setting Fig 3 PILOT EJ C 3 LON A C Standby Once the pilot is lit the appliance may be left on standby by leaving
3. Dw kK wy Replace as above in reverse order IS356 ECN3258 13 TROUBLESHOOTING FAULT FINDING Explanation of the Control System The gas circuit in this fryer 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 30 mV 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 500 700 mV electrical potential This millivolt system connected to the 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
4. Amendment Regulations 1998 and the Health and Safety at Work Act 1974 It is mandatory that all appliances are installed and commissioned by a qualified and competent CORGI registered gas fitter WARNING Installation service or repair of this appliance by non CORGI registered personnel will invalidate its warranty VENTILATION The area in which this equipment is to be installed should have sufficient fixed ventilation to comply with the requirements of Approved Document J in the 2002 Building Regulations It is recommended that a minimum Area of 450mm per 1kWh 3400Btu hr of total heat input must be allowed Particular attention should be paid to the low level ventilation to ensure that the appliance has a good supply of clean fresh air INSTALLATION POSITION This appliance is supplied with feet which should be fitted when it is to be mounted on either a counter top or tabletop If it is to be mounted on to a pedestal or stand the feet should not be fitted and only open fronted pedestals e g model CN7 or stand SLS7 should be used To ensure a free flow of air around and behind the appliance a clear space of at least 20mm must be left at the rear between flue and the wall and 50mm to either side of the appliance or bank of appliances There should be a minimum clearance of 750mm between the top of the appliance and any overlying shelf or ceiling Note Any partitions walls worktops or kitchen furniture should be of non combustible m
5. Lincat SILVERLINK GOO INSTALLATION AND USER INSTRUCTIONS FOR DF7 GAS FRYER IS356 ECN3258 FOREWORD INSTALLATION INSTRUCTIONS Ventilation Installation position Installation commissioning Gas supply and connection Pressure setting Heat input NOTES ON FRYING Frying media Frying times Frying tips Oil capacity OPERATING INSTRUCTIONS Initial start up Operating instructions Drainage and cleaning SERVICING General routine servicing Component replacement Spares list TROUBLESHOOTING SPARES LIST TECHNICAL SPECIFICATION SERVICE Contact information Lincat service department Conditions of guarantee IS356 ECN3258 INDEX 4 5 6 7 11 13 14 15 16 16 17 FOREWORD Thank you for buying this Lincat product which we hope will give you years of trouble free service To ensure you receive the maximum benefit from your new fryer please take the time to read this instruction book carefully following any directions given We manufacture over 300 different items of catering equipment and are constantly adding to and improving the range If you re thinking of extending your kitchen or renewing a catering appliance in the near future see our sales brochures available from your local distributor or send for one direct from us before you make your decision IMPORTANT Please read this page carefully before initially using the equipment WARNING This ap
6. action to rectify them Piezo Igniter not sparking Is there a short in the High Tension Lead Has Electrode Insulator Fractured Replace Lead Replace Electrode IS356 ECN3258 14 Pilot burner will not light or stay lit Are the thermocouple Interrupter connections secure Is there gas at the pilot when holding control knob in the pilot position Very little Tighten connection Check supply Check overterrperature Stat for open circuit Check thermocouple voltage minium 15mV Check pilot jet for blockage and clean where necessary If all of the above are OK the control valve may be faulty High limit thermostat operates Is the oil temperature over 220 C Does the control stat operate on temp rise when set point is low 100 C Are the connections correct on the gas control Correct connections Replace overtemperature stat Replace control stat Replace overtemperature stat Manually reset overtemp stat IS356 ECN3258 15 SPARES LIST The following components are listed with the Lincat reference number followed by a brief description IG15 Igniter Electrode IG06 Igniter Lead IG12 Igniter PIO8 Pilot assembly VA20 Multi function valve TH96 Safety limit stat TC39 Interrupted Thermocouple TC20 Thermopile TH99 Control Ther
7. equipment have a separate isolation valve 2 Remove the facia panel by removing the screws beneath the front edge and lifting forward and down to disengage the top tabs Disconnect the piezo igniter leads Access is then gained to the multi function valve thermostats etc 3 Check and adjust where necessary the burner pressure with the unit in full operation at the right hand test nipple Fig 1 B See Technical Data for information Check the general burner condition Check the thermostats for correct operation Temperature test the unit Check the spark electrode and thermocouple within the pilot assembly Adjust if necessary 4 5 6 Check that the pilot assembly is burning correctly clean if necessary See Pilot Assembly below 7 8 Check thermocouple output between interrupter junctions Voltage should be 7mV minimum 9 Ensure that the flue is clear 10 Carryout a gas soundness check 1 Refit facia panel remembering to reconnect piezo igniter leads DF7 Component Replacement Note Access to some of the components referred to in this section can only be gained by separating the base sides of the appliance from the tank and hob top assembly Base and Hob top Separation Note The fryer must be emptied of oil and disconnected from the gas supply before proceeding 1 Remove all loose parts lid baskets batter plate etc 2 Detach flue back by removing screws holding flue to body 3 Remove the control
8. knob and undo the control thermostat screws 4 Remove the screws beneath the control panel to allow control panel to be lifted forward and down to disengage the tabs Remove the 2 screws beneath the base holding the front heatshield to the base 5 Disconnect igniter leads and remove control panel completely 6 Remove the nuts holding the drain tap to the drain tap bracket Lift out safety lock arms Undo the limit stat nuts and free the limit stats Disconnect limit stat wiring to interrupted t couples Disconnect control stat wiring IS356 ECN3258 11 Unscrew flue at back Body and hob are interlocked by 3 formed steel hook and slots each side to separate push hob top back until hooks disengage and then lift hob and tank assembly clear of base and sides 8 Take care as the limit thermostat and safety stat will remain attached to hob top do not damage capillaries 9 Carry out any work necessary and reassemble in the reverse order of 1 7 above Pilot Assembly To access the pilot assembly firstly remove the control panel as per Step 4 above Either pilot assembly can then be lowered through the base of the unit by unscrewing the appropriate pilot box from beneath the unit and loosening the pilot pipe at the valve joint Carefully remove the pilot box all pilot components can then be accessed Thermocouple 1 Loosen retaining nut at valve 2 Loosen retaining nut at pilot assembly 3 Disconnect cabling from th
9. the pilot control knob in the pilot ignition position Fig 3 B When in this position the appliance cannot be operated from the thermostat control knob To re ignite the main burners turn the pilot control knob anti clockwise to the burner position Fig 3 C and operate the control thermostat as normal Note Should the safety cut out thermostat operate during normal use the unit will shut down To re light the unit allow the oil to cool to a temperature below 200 C Re set the safety thermostat by depressing the red re set button Fig 2 8 SHUT DOWN OF THE APPLIANCE 1 When the appliance is not required turn the thermostat fully anti clockwise which will shut down the main burner but leave the pilot lit ready for when the appliance is next required 2 To turn the unit off completely turn the thermostat fully anti clockwise and the pilot knob fully clockwise DRAINAGE 1 Always allow the oil to cool to a maximum 55 C before draining 2 Remove the blanking nuts from the front of the unit Fig 2 5 Fit the pipe which is normally stowed in the lid and place a suitable receptacle under the pipe outlet Lift the safety catch Fig 2 7 and operate the tap by moving the handle Fig 2 6 to the right to drain Remove the pipe and fit into its storage position in the lid Replace the blanking nut and close the tap before refilling the tank 3 Take care when draining the oil that the drain bucket is not filled so full that it is diffic
10. 7 Propane gas 17 0 kWh Natural gas 17 0 kWh IS356 ECN3258 5 NOTES ON FRYING MEDIA Ensure oil is always maintained at the level indicated H high L low Good quality vegetable oil is recommended Animal fat may be used but must always be melted first Animal fat has a lower smoke and fire temperature than vegetable oil and taste is transferred when cooking with it e g onions fried in animal fat will taint other foods i e fish which may follow This does not occur when cooking with vegetable oil The life expectancy of oils and cooking fats will be lengthened if they are filtered regularly food particles not removed turn rancid and reduce oil fat quality Vegetable oils and animal fat are incompatible e g if sausages containing a lot of animal fat are fried in vegetable oil the oil will tend to glue and spoil The life of oil or fat will also be extended if the temperature is turned down when the fryer is not in use otherwise if left full on the oil is being subjected to needless heat treatment and thereby destroyed Used oil symptoms firstly indicate discolouration by darkening The oil becomes thin its fat content having become exhausted The next symptom is an unhealthy yellow foam which may appear on the surface and the third and more serious one is that the oil will boil or surge if not changed thereby causing damage Be safe not sorry Keep your oil in good condition and ensure a healthier
11. ITIONS 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 IS356 ECN3258 17
12. aterials INSTALLATION COMMISSIONING To ensure a full understanding of the correct operation of the appliance the following commissioning checks must be carried out before the appliance is handed over for use All operators must know how to light safely operate and shutdown the appliance Although all Lincat fryers are operationally checked during manufacture commissioning shall include an operational check of all controls The thermostat is calibrated and sealed at the factory Re calibration is not authorised as it may adversely affect the performance of the appliance and will also invalidate the warranty GAS SUPPLY amp CONNECTION Check that the gas supply corresponds to that specified on the data plate Connection is via a 1 2 bspt male thread on the back of the unit If connection to the supply pipe is via a flexible hose ensure that the hose used is suitable for commercial catering appliances WARNING Black domestic hoses are not suitable for this appliance When making the connection on to the appliance secure the hexagon on the fitting to prevent rotation of the internal pipe work An isolating cock should be fitted into the supply line to the unit for servicing purposes IS356 ECN3258 4 PRESSURE SETTING There are two burners in the DF7 each burner needs setting individually
13. e interrupter 4 Withdraw thermocouple from pilot assembly 5 Replace as above in reverse order Thermopile 1 Disconnect thermopile lead at valve 2 Loosen retaining nut at pilot assembly 3 Withdraw thermopile from pilot assembly 4 Replace as above in reverse order Limit Thermostat 1 Loosen tank gland Remove drain valve safety latch Loosen limit thermostat nut and withdraw from bracket Disconnect wiring 2 3 4 5 6 Withdraw probe from tank Thermostat can now be removed Replace as above in reverse order Control Valve l 2 3 4 3 Disconnect all wire connections on valve terminals Disconnect interrupted thermocouple from valve Undo pilot feed pipe Undo supply pipe and burner pipe unions Remove two screws from each side of valve support brackets IS356 ECN3258 12 Withdraw valve Remove unions from valve for re use Replace as above in reverse order O p ND For Propane gas units remove the governor cap unscrew the adjuster and remove with the spring 10 Replace spring with Lincat part number SP65 and reassemble 11 Reset burner pressure as per Installation instructions Pressure setting Burner and jet 1 Remove the aeration box top cover at the rear of the burner Undo the pipe union on the burner elbow Remove the burner retaining nut at the front of the burner Withdraw the burner assembly To gain access to the jet remove the elbow
14. food product and happier customers Please note also that spent oil will have a lower flash point than new oil and therefore present a greater fire hazard Also avoid overflow from over wet loads or over large batches In time oil fat may build up as a dried on residue on tanks baskets etc although this can be minimised on baskets by regular washing in hot water and detergent If subsequently it cannot be removed by normal cleaning various branded cleansers are available such as Carb n off which makes removal easy after overnight application Carb n off is available from us Part No FCBOI If a fryer is to be out of use for a lengthy period drain and clean the tank Lightly oil tanks below the batter plate with cooking oil Warning Always allow oil to cool to a maximum 55 C before draining A GUIDE TO FRYING TIMES Food Type Frying Time Temperature Fish 3 4 mins 170 C Chips blanching 3 4 mins 160 C Chips browning 2 3 mins 190 C Chicken 9 12 mins 160 C Fritters 4 5 mins 180 C Scampi 4 5 mins 180 C Mushrooms 2 3 mins 180 C IS356 ECN3258 6 FROZEN FOODS When cooking frozen food it is advisable to defrost the food before attempting to fry it If frozen food is deposited into the oil heating recovery times will be greatly reduced lowering your cooking output Defrosting will also ensure that surplus water is not placed into the oil FRYING TIPS 1 Always use a good quality oil or fat preferab
15. ly oil which has a high breakdown temperature e g pure vegetable oil 2 Do not exceed the recommended cooking temperature stated by the supplier 3 Always maintain the oil at the correct level 4 Do not use the Fryer until the oil is at its correct temperature 5 Only use very clean oil and filter it daily 6 Whilst frying carefully remove crumbs and pieces which float on the surface of the oil otherwise this will carbonate and contaminate the oil 6 Keep the pan clean 8 Do not overload the baskets 9 Use batter plate frying plate only if free frying of fish is required OIL CAPACITY Model No Capacity DF7 6 litres per Tank Note The recommended frying weight is 750g 0 75kg per basket IS356 ECN3258 7 OPERATING INSTRUCTIONS PREPARATION FOR USE 1 Ensure that the drain valve is closed 2 Fill the tank with water and a little mild detergent Turn the unit ON see Operating Instructions and allow the water to boil for a short time 3 Switch off and drain off the water Rinse the tank and dry thoroughly Ensure that the drain pipe and tap are dried thoroughly 4 Run a small quantity of oil across the base of the tank and allow to drain to waste This will remove any residual water and provide the base of the tank with a coating of oil 5 Close the drain valve Note Lids must not be used when cooking is in progress Fig 2
16. mostat TECHNICAL SPECIFICATION Model DF7 Dimensions H W D 425 x 750 x 600 Weight 46kg Inlet connection 1 2 BSP Natural Gas Ly Heat Input Gross 17 0 kW Supply Pressure 20 0 mbar Burner Pressure 15 0 mbar Injector size 2 3mm 740 Gas Rate 1 53m h Propane Gas Isp Heat Input Gross 17 0 kW Supply Pressure 37 mbar Burner Pressure 25 mbar Injector size 1 62mm 340 Gas Rate 1 22 kg h IS356 ECN3258 SERVICE Gas catering equipment should be routinely serviced to ensure a long trouble free life With this in mind it is recommended that the appliances are 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 T 01522 875520 AUTHORISED SERVICE AGENTS We recommend that all servicing other than routine cleaning be carried out by our authorised service agents and will accept no responsibility for work carried out by other persons Note that for safe and efficient operation appliances need regular servicing Please quote both the model and serial numbers from the data plate attached to the unit Give brief details of the service requirement If you know the part number of the part in question please quote this information also Lincat reserve the right to carry out any work under warranty during normal working hours i e Monday to Friday 8 30 a m 5 30 p m COND
17. pliance must be installed and serviced by a registered engineer Whilst in operation parts of the catering equipment will become hot Suitable precautions must be taken to avoid accidental burns therefore the appliance should be positioned to minimise the possibility of accidental touching This appliance is for professional use and shall be operated by qualified personnel CONSEQUENTIAL LOSS Lincat do not accept any responsibility for loss of food production time profit etc which may result from a break down of the equipment MAINTENANCE 1 These units must not be cleaned using a water jet 2 Clean units with water and detergent do not use abrasives Parts of this appliance especially the flue become hot in operation Warning Parts which have been protected by the manufacturer or his agent must not be adjusted by the installer or user 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 IS356 ECN3258 3 INSTALLATION INSTRUCTIONS Before commencing installation of the appliance please take time to read the following installation instructions carefully UNIT DF7 All appliances should be installed in accordance with BS 6173 2001 Code of practice for installation of gas catering appliances taking into account the Gas Safety Regulations 1984 as amended by the Gas Safety Installation and Use
18. ult to handle 4 Excess oil remaining in the base of the tank can be mopped up using kitchen paper IS356 ECN3258 9 CLEANING INSTRUCTIONS Note Clean the appliance with hot water and a mild detergent do not use abrasives 1 2 3 4 5 6 7 8 In extreme conditions a branded cleanser such as Carb n off makes cleaning easier after an overnight application Isolate the appliance from the gas supply Allow the oil to cool to a maximum 55 C Drain as per above instructions Wash the tanks and the top surface of the fryer body Clean the drain tube assembly using a tube or flue brush suitable for 15mm tube with the drain valves in the open position Clean by inserting the brush into both the inlet and outlet of the drains Wash all parts thoroughly Ensure all parts are thoroughly rinsed and dried To ensure there is no water left in the drain tube flush thoroughly with a small amount of clean cooking oil Re assemble by reversing the above procedure IS356 ECN3258 10 SERVICING Gas catering equipment should be routinely serviced to ensure a long trouble free life With this in mind it is recommended that the appliances are serviced every 6 months by a competent gas engineer Please see Page 17 Service for information on authorised service agents DF7 GENERAL SERVICE 1 General check of equipment e g installation is the unit on the correct hoses does the hose have a safety chain does the
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