STORE MANAGER TROUBLESHOOTING MANUAL
Contents
1. Call 502 459 2700 or 800 626 56872. N HI LIMIT MOLEX CONNECTOR nN Oe FLOAT SWITCH 7 NORMAL FLOW A sott steady blue should enter the heat tube without touching the tront outside of the tube Figure 1 EXCESSIVE FLOW Flame seems to litt otf of burner 1 Adjust callar see figure 5 2 Check gas see figura 5 lor location of gas pressure test plug Figure 3 ATMOSPHERIC BURNER MAIN BURNER ORIFICE AIR COLLAR LOCKNUT BURNER FITTING GAS PRESSURE TEST PLUG AIR COLLAR ADJUSTMENT PILOT BURNER INSUFFICIENT PILOT FLAME Tum air coitar and locknut down as tar as coasibie If flame lifts off the tace of the burner turn the collar uo until the best flame is ootained Then tighten the ocknut against the bottom of the air collar Remove pilot cap screw see fig ure 4 Using s screwdriver with a 1 8 biade tum screw counter should be between 300 to 500 mv INSUFFICIENT FLOW t 1 Tubes and battles dadly carboned 2 Vent not property adjusted 3 Blockage in neat tube or five area Figure 2 INSUFFICIENT GAS PRESSURE 1 Have Gas Company check incoming gas pressure 2 Adiust regulator to gas pressure shown on first page Remove pres sure regui amp tor screw figure 61 Using ascrewanver with 5 16 max blade turn screw clockwise to increase gas pressure PRESSURE REGULATOR Knob is designed
3. 01 P6071267 8 Unitrol Knob P6072186 9 Mfg Data Plate P7037467 P6071005 10 Main Burners P7037754 B7420040 11 Main Burner Orifices B7202201 Natural B7200805 B7420053 11 Main Burner Orifices A1301101 Propane B7233007 P6071091 12 Air Collar Plated 7473011 P6071360 13 Air Collar Nut A1303505 P6071997 14 Burner Fittings P6071303 B7550107 15 Burner Manifold A3700107 MODEL NO AND SERIAL NUMBER OF FRYER MUST BE GIVEN ON ALL PARTS ORDERS If serial number or part name is not known enclose pencil sketch with order Item No 17 18 19 20 21 22 23 24 25 26 27 28 29 30 32 33 34 35 37 38 40 40 Item Description Pressure Test Plug 1 4 Main Burner Lock Bolt 5 16 x 1 2 Plated Drain Valve 1 1 4 Heat Shield Door Assembly RH Std w Handle Door Handle Snap Buttons Burner Mountina Bolts 5 16 x 3 4 Brass Magnetic Door Catch Float Switch Probe and Limit Bulb Clamp Clean Out Rod Heat Tube Baffles Tube Screen Drain Extension 1 1 4 x 14 1 1 4 St Elbow Drain Valve Hndl Front Panel Std Thermostat Mta Bracket Caster w o Lock 8 Adjustable Legs 8 Manifold Bracket Unitrol Magnet Heat Deflector GROUND NEUTRAL LINE HEADER 3 FRYER Lo 9 2 PROBE CONNECTOR SEALTITE CONDUIT JUNCTION BOX P1 POWER HEAT DEMAND BK 4 SWITCH CONTACT o GAS VALVE BK o BK 4o ak ells TRANSFORMER BK 5 G 0 SEALTITE CONDUIT
4. MANUFACTURER P O Box 501 Concord New Hampshire 03301 OF DEEP FAT FRYERS SECTION 15 SERVICE PROCEDURES Parts can be identified from diagrams on Parts List page for each model 1 1 TO REMOVE MAIN BURNER a Turn Unitrol knob to OFF position b Loosen set screw in base of burner casting c Unscrew and remove two hex head screws at top of burner d Unscrew and remove air collar and locknut from burner e Lift burner up to clear top of burner fitting and remove from fryer f Reverse procedure to remount burner 1 2 TO CHANGE MAIN BURNER ORIFICE a Follow procedure in Section 1 1 b After burner has been removed unscrew orifice with a 3 8 wrench c Screw in new orifice tighten gas tight d Remount burner air collar and locknut 1 3 TO REPLACE HEAT TUBE BAFFLES a Remove main burners follow procedure in Section 1 1 a through e b Baffles are fastened to the inside of the heat tube by a small tack weld on the right hand front baffle support Break leg away from weld with a chisel or solid steel bar c Remove old baffles and insert new ones in tubes in original position d Remount main burners 1 4 TO REMOVE PILOT BURNER a Follow procedure in Section 1 1 and remove main burner to the right of the pilot burner b Unscrew and remove tubing nut from pilot tubing connection on Unitrol c Unscrew and remove thermopile from connection on Unitrol d Unscrew and remove the two screws holding the pilot to the bra
5. PITCO FRIALATOR INC 18 WK KENTUCKY FRIED CHICKEN EQUIPPED WITH A 821 AJMK KF2 COOKING COMPUTER STORE MANAGER TROUBLESHOOTING MANUAL Pitco Frialator Inc P O Box 501 Concord N H 03301 Phone 603 225 6684 Service Dept 603 225 5688 A BLODGETT Company TROUBLESHOOTING PITCO FRIALATOR NO PILOT LIGHT PILOT LIGHT ON NO HEAT 1 HIGH LIMIT TRIPPED 2 HIGH LIMIT NOT TRIPPED 1 PILOT KNOB IN PI LOT POSITION 2 PILOT KNOB IS IN ON POSITION NO HEAT CONDITION POSSIBLE CAUSE REMEDY Reset high limit if unable call authorized service agent for replacement Call authorized service agent Turn to ON position ON OFF switch in OFF position Exit fill key not pressed after being refilled Float switch stuck in down position or float bulb off clean or install with new hold clip Defective computer call authorized service agent Defective computer probe call authorized service agent PITCO FRIALATOR INC GAS FIRED DEEP FAT FRYER SERVICEMAN S SERVICE MANUAL 18 WK KENTUCKY FRIED CHICKEN 5 MODEL 18WKS T U A J 0 CONTENTS SECTION 18 SERVICE PROCEDURES SECTION 28 TROUBLESHOOTING CHARTS SECTION 35 WIRING DIAGRAMS SECTION 45 PARTS LISTS Pitco Frialator Inc P O Box 501 Concord N H 03301 Phone 603 225 6684 Service Dept 603 225 5688 A BLODGETT Company PITCO Frialator Inc WORLD S LEADING
6. cket on the fat container and lift the entire pilot assembly out of the fryer 1 5 TO CHANGE PILOT BURNER ORIFICE a Follow procedure in 1 4 b Unscrew tubing nut in fitting in base of pilot burner c Unscrew fitting in base of pilot burner and withdraw orifice from inside the fitting d Insert new orifice and reverse procedure to re assemble e Tighten all screws and connections and test for gas leaks PITCO Frialator Inc WORLD S LEADING MANUFACTURER P O Box 501 Concord New Hampshire 03301 OF DEEP FAT FRYERS SECTION 1 S SERVICE PROCEDURES Cont d 1 6 TO REPLACE THERMOPILE a Follow procedure in 1 4 b Unscrew and remove thermopile from pilot burner bracket c Replace with new thermopile d Reverse procedure to re assemble e Tighten all screws and connections and test for gas leaks 1 7 TO ADJUST PILOT FLAME a Make this adjustment with pilot burner lit b Remove screw cap underneath pilot supply tubing connection to Unitrol valve c Insert long handled screwdriver with 1 8 wide blade in adjusting screw slot inside this pilot supply fitting d Turn adjusting screw clockwise to decrease or counterclockwise to increase pilot flame Watch size of pilot flame while turning adjusting screw CAUTION DO NOT REMOVE ADJUSTING SCREW e Replace screw cap when desired flame size is obtained f Replace pilot orifice if desired flame cannot be obtained by adjustment See Procedure 1 5 1 8 TO REPLACE LIMIT CONTROL a Tu
7. ft Supply cord may not be plugged in Check electric supply circuit or switch may not be turned on Defective probe Replace probe Defective computer Replace Defective Unitrol Replace Unitrol Pilot flame and main burners cutoff See list of Causes and Remedies while cooking for Pilot will light but Unitrol main gas valve will not hold open automatically Fryer temperature recovery too slow Excessive up draft on fryer flue Reduce exhaust blower speed or locate it at a greater distance from fryer Low gas pressure Minimum operating pressures Natural Gas 4 0 w c Propane Gas 10 0 w c Incorrect burner orifices Call factory to learn proper sizes Carbon build up on heat tubes Clean fry kettle and tubes Baffles in heat tubes may be Replace baffles burned out Pilot flame is yellow Pilot flame too large Adjust Unitrol pilot adjustment screw 2 Carbon build up on thermopile Remove and clean SECTION 28 TROUBLESHOOTING CHART Cont d TROUBLE POSSIBLE CAUSE REMEDY Burner flames will not enter heat 1 Downdraft on fryer flue opening Protect flue opening from tubes or vent not turned on downdrafts breezes or air flows from blowers a Turn Vent on 2 Orifices may be too large 2 Call factory to learn proper sizes 3 Gas pressure too high 3 On natural gas adjust Unitrol pressure regulator to 4 0 w c operating pressure On propane gas ha
8. rn Unitrol knob to OFF b Drain all shortening from fry kettle Remove tube screen c Unscrew and remove the two screws in the limit bulb clamp on the heat tube inside the fry kettle d Take sensing bulb out of the clamp and straighten the capillary tubing e Remove the two burners that are in front of the capillary connector fitting on the bottom of the fry kettle See Procedure 1 1 f Unscrew small hex nut in connector fitting of control to be replaced g Unscrew large connector nut and withdraw capillary and bulb from fry kettle h Remove the two wires off the limit control terminals i Unscrew and remove the two mounting screws in the limit control bracket and remove the limit control from the fryer j Unpack the new limit control and carefully unroll the capillary tubing and straighten it out k Install the new limit control by reversing the procedure BE CAREFUL NOT TO BEND KINK OR TWIST THE CAPILLARY TUBING SHARPLY THIS WILL DESTROY THE LIMIT CONTROL SECTION 28 TROUBLESHOOTING CHART TROUBLE POSSIBLE CAUSE REMEDY Pilot will light but Unitrol main gas valve 1 Pilot thermopile not hot enough to 1 Hold Unitrol knob in PILOT will not hold open automatically generate required millivoltage 2 Loose wire connection in millivoltage circuit 3 Thermopile producing insufficient millivoltage 4 High limit control may have cut out 5 Pilot flame too small 6 Pilot flame burning yellow 7 Draft ma
9. to before vaive stem SAP SCREW U ION PILOT CAP SCREW LOCATION UNITROL COMBINATION GAS VALVE NORMAL PILOT FLAME As stated in figure 7 the normal mt pilot wiii generate a voitage of 300 to 500 mv Subsection Fryers Cookers Section Kitchen Equip ISSUE DATE Fat Vat Waste Shortening Container l January 1 1986 The Fat Vat waste shortening container is specifically designed to handle the task of securing waste shortening from fryers and transporting it to outside grease dumpsters or barrels This unique lightweight container was engineered with safety and convenience in mind to supersede conventional methods used for transporting waste shortening Specifications Height 35 Depth 8 Width 12 Weight 16 lbs Color Silver Gray Beneficial Characteristics Helps eliminate the mess Secures hot waste shortening Convenient to transport Easy to dump lightweight Holds 7 1 2 gallons of waste shortening One year limited warrantee Operational Instructions Open lid lay container down under fryer release valve e Drain waste shortening into Fat Vat e Close lid and transport by pulling or pushing e Hook lid lip on dumpster and holding both bottom and top handles empty shortening into grease container e Clean Fat Vat with hot water and amonia air dry KFC NATIONAL PURCHASING COOPERATIVE INC P O Box 32033 Louisville KY 40232
10. ve gas supplier adjust tank pressure to provide 10 0 w c operating pressure at the fryer 4 Burners out of alignment 4 Loosen burner mounting screws and line up burners Main burners will not shut off 1 Clogged vent cap on Uni trol 1 Remove and clean cap automatically 2 Defective Unitrol 2 Replace Unitrol Main burner flames are yellow 1 Improper air collar adjustment 1 Adjust air collars 2 Main burners dirty 2 Remove burners and clean 3 Improper gas pressure 3 On natural gas adjust Unitrol pressure regulator to 4 0 w c operating pressure On propane gas have gas supplier adjust tank pressure to provide 10 0 w c operating pressure at the fryer 4 Orifices are too large 4 Call factory to learn proper sizes Howling or screeching noise when 1 Gas pressure too high 1 Adjust pressure regulator burners are on 2 Dirt or burr on burner orifice 2 Clean orifice or replace 24 Part No Item No Item Description Part No B7100860 1 Stainless Steel Fat P7036726 Container P8013485 P6094991 2 Name Plate P5047210 3 High limit Control P5047541 4 Thermopile P6071768 R Shaw 51023 A3701107 B7285301 5 Pilot Burner Natural B7220030 W Heat Shield B7285302 5 Pilot Burner Propane P6071516 W Heat Shield P6071496 P6071805 6 Unitrol Limit Wire P8012010 P5045650 7 Unitrol Natural 120V R Shaw 337 901 P6071300 212A P5047217 P5045652 7 Unitrol Propane 120V A1400202 R Shaw 337 902 A3301002 272A B72525
11. y be pulling flame off thermopile 8 Gas pressure too low position depressed for 1 minute or longer Make sure all air has been purged from gas line Check all wire connections Check voltage at Unitrol with millivoltmeter holding pilot flame on manually as in No 1 above Reading should be between 140 and 450 mv Check continuity across limit control terminals with meter If limit control has cut off check at what temperature it cut off Check millivoltage as above increase size of flame with Unitrol pilot adjusting screw Remove and clean pilot and thermopile decrease size of flame with Unitrol pilot adjusting screw if over 450 mv Eliminate the draft Pressure at burner manifold should be 4 0 w c for natural gas and 10 0 w c for propane with all appliances on same gas line in full operation Increase building pipe size gas meter size or number of LP tanks Consult gas company SECTION 28 TROUBLESHOOTING CHART Cont d TROUBLE POSSIBLE CAUSE REMEDY Pilot will light but Unitrol 9 Defective thermopile 9 Replace thermopile main gas valve will not hold open 10 Defective Unitrol magnet 10 Replace magnet automatically Pilot flame lit but burners will not light Unitrol valve handle not turned to 1 Turn handle counter clockwise as ON far as it will go Float switch bulb off or stuck down Install float switch bulb and new clip a Pull bulb up and clean sha
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