REVISED SERVICE BULLETIN
Contents
1. VULCAN REVISED SERVICE BULLETIN ATTENTION GENERAL MANAGER SERVICE MANAGER PARTS MANAGER DATE August 10 2006 SB 720R TO VULCAN AND WOLF CONTRACTED PARTS AND SERVICE AGENCYS HOBART BRANCHES AND AGENCYS FROM PAUL FORREST SUBJECT REVISION FOR SB 720 GR SERIES FRYERS GAS VALVE CHANGE DUE TO PILOT OUTAGE PROBLEM MILLIVOLT CONTROLS OR MANUAL IGNITION ONLY PURPOSE Any Millivolt or Manual Ignition Vulcan or Wolf gas fryer that is within the warranty period and has a White Rogers combination gas valve must be changed over to Robertshaw valves per SB 720 see attachment and call submitted as a warranty claim This does not affect any fryer that has electronic ignition If you are working on any other piece of equipment please inspect the fryer for ignition type If the fryer is ou of warranty please contact the FEG Cooking Full Kitchen Tech Support team as these will be handled on a case by case basis Examples Scenario If a technician is on a call for a range or oven and the restaurant has a fryer that is working fine but has a White Rogers valve installed it must be changed to a Robertshaw valve because it will fail Scenario 2 If a technician is working on a fryer problem not related to the combo valve but the unit has a White Rogers valve it must be changed to a Robertshaw valve Scenario 3 Ifa battery fryer has all White Rogers valves but only one fryer is not working replace ALL of the valves with Ro2. manual ignition As of November 16 2005 the gas valve for production fryers with millivolt controls changed back to Robertshaw NOTE Current production fryers with solid state or computer controls D amp C Models are built with electronic ignition as the standard configuration and will continue to use White Rodgers gas valve TOAFA ROBERTSHAW GAS VALVE MILLIVOLT WHITE RODGERS GAS VALVE CONTROLS SHOWN MILLIVOLT CONTROLS SHOWN SERVICE KIT P N 497616 G1 NAT MILLIVOLT CONTROLS ROBERTSHAW VALVE KIT CONTENTS Part No Description Qty 410841 22 Valve Combination Nat 1 413433 6 Lever Valve l PC 003 38 Pin Cotter 3 32 Dia 1 417896 1 Plate Control Valve With Pilot 1 428755 2 Bracket Pilot Lever 1 FP 077 68 Elbow Pipe 1 2 X 90 Deg 1 FP 035 94 Pipe 1 2 X 1 1 2 1 FP 035 95 Pipe 1 2 X 2 1 419663 Diagram Wiring SERVICE KIT P N 497616 G2 LP MILLIVOLT CONTROLS ROBERTSHAW VALVE KIT CONTENTS Part No Description Qty 410841 23 Valve Combination LP 1 413433 6 Lever Valve PC 003 38 Pin Cotter 3 32 Dia 1 417896 1 Plate Control Valve With Pilot 1 428755 2 Bracket Pilot Lever 1 FP 077 68 Elbow Pipe 1 2 X 90 Deg 1 FP 035 94 Pipe 1 2 X 1 1 2 1 FP 035 95 Pipe 1 2 X 2 1 419663 Diagram Wiring SERVICE KIT P N 497616 G3 NAT MANUALIGNITION D amp C MODELS ROBERTSHAW VALVE KIT CONTENTS Part No 410841 30 410839 1 410838 G2 428755 2 413433 6 PC 003 38 417896 1
3. Description Qty Valve Combination Nat 1 Thermopile Millivolt Manual Ignition l Adapter Wire Assy Butterfly Conn 1 Bracket Pilot Lever 1 Lever Valve l Pin Cotter 3 32 Dia 1 Plate Control Valve l SERVICE KIT P N 497616 G4 LP MANUAL IGNITION D amp C MODELS ROBERTSHAW VALVE KIT Part No 410841 31 410839 1 410838 G2 428755 2 413433 6 PC 003 38 417896 1 Description Qty Valve Combination LP 1 Thermopile Millivolt 1 Adapter Wire Assy Butterfly Conn 1 Bracket Pilot Lever 1 Lever Valve 1 Pin Cotter 3 32 Dia l Plate Control Valve With pilot 1 Service Procedures FRYER BATTERY WITH MILLIVOLT CONTROLS A Connect gas valve to the manifold by using pipe fittings from kit and the male threaded end of pipe union B Tighten union to secure en SAS SUPPLY Aa Le ROBERTIHA GAS VALVET WARNING DISCONNECT THE l ELECTRICAL POWER TO THE MACHINE AND FOLLOW LOCKOUT TAGOUT PROCDURES WARNING SHUT OFF THE GAS BEFORE SERVICING THE UNIT WARNING ALL GAS JOINTS DISTURBED DURING SERVICING MUST BE CHECKED FOR LEAKS CHECK WITH A ED as sar bi WAS x 30 SOAP AND WATER SOLUTION BUBBLES DO NOT USE AN To GAS are FLAG OPEN FLAME A AIFS LG AIT BA 1 Remove gas valve as outlined in service manual A Remove the male threaded end of pipe union from the gas valve piping outlet side and retain for use during manifold piping installation The remaining pipe fittings on the gas
4. ORE SERVICING THE UNIT WARNING ALL GAS JOINTS DISTURBED DURING SERVICING MUST BE CHECKED FOR LEAKS CHECK WITH A SOAP AND WATER SOLUTION BUBBLES DO NOT USE AN OPEN FLAME 1 Remove pilot lever bracket on off from manifold hanger 4 Reconnect lead wires to gas valve Refer to wiring diagram in service manual 5 Install wire assembly adaptor from kit to gas valve and connect wire leads to high limit CAUTION Do not sharply bend and kink the thermocouple copper tube or damage may occur A Connect thermopile to gas valve used must be resistant to the action of propane gas A Connect gas valve to the manifold bu using pipe fittings from old gas valve and the male threaded end of the pipe union B Tighten union to secure ROBERTS HAW GAS VALVE 4 2 x 27 L PIPE oe z q2 x 11 2 L PIPE 0 is ELBOW 6 Remove paper backing from adhesive side of control valve plate off pilot on align hole to pilot lever bracket and press firmly to secure A Install pilot lever bracket to manifold hanger using existing hole locations and hardware B Install valve lever and secure with cotter pin 7 Check for proper operation If you have any questions or need additional assistance please contact Mark Dietz in Technical Assistance Fryers at 800 814 2028 VIRF ASSEN Y THERAPI F PILOT LEVER PE A 8 MANIFOI Nn BRACKET PEN WITH CONTROL e WAIYE PI ATF FE ME HANGER O
5. bertshaw valves using the Kit numbers Hopefully this can be done on the same trip For any free standing Millivolt fryer EF GR GHF91G FWTF42 VGF18 Series Fryers that has NO drawer filter system to change over from White Rogers combination gas valve to Robertshaw valve you need to replace the valve 410841 22 for NAT or 410841 23 for L P the thermopile 410839 4 and wire it to schematic 419663 see attachment Please review this service request from Vulcan Wolf with those on your staff who need to know to ensure their understanding If you have any questions please contact Mark Dietz in our Technical Service Department Call 800 814 2028 and select 1222 Dc a Ce awg IF AMIE oreo RED A 28 3 o KE V The Premier Cooking Line SERVICE BULLETIN 720 ATTENTION GENERAL MANAGER SERVICE MANAGER PARTS MANAGER DATE March 2 2006 TO VULCAN AND WOLF CONTRACTED PARTS AND SERVICE AGENCYS HOBART BRANCHES AND AGENCYS FROM PAUL FORREST SUBJECT GR SERIES FRYERS GAS VALVE CHANGE DUE TO PILOT OUTAGE PROBLEM MILLIVOLT CONTROLS OR MANUAL IGNITION ONLY Introduction Prior to April 2005 all production fryers were built with Robertshaw gas valves Between April 2005 and November 2005 all production fryers were built with White Rodgers gas valves As of September 1 2005 production fryers with solid state or computer controls D amp C Models are no longer being offered with
6. valve will not be used 2 Install replacement gas valve to the brass elbow in the gas supply inlet NOTE When installing clean gas pipe threads and apply pipe joint compound to threads An 7 7 EE p i PILOT LEVER e Le REMOVE pipe joint compound used must be resistant to the action ERLCKET AE a SCREW of propane gas 3 Reconnect lead wires to gas valve Refer to wiring diagram in kit or service manual 4 Remove paper backing from adhesive side of control valve plate off pilot on align hole to pilot lever bracket and press firmly to secure A Install pilot lever bracket to manifold hanger using existing hole location and hardware B Install valve lever and secure with cotter pin E Di T PILOT LEVER E MANIFOLD BRACKET f FH A ME HANGER WITH GONTRGL g WALVE PLATE i lt 1 ar i 2 Remove gas valve and thermopile as outlined in service amnaul A Remove the male threaded end of pipe union from the gas valve piping outlet side and retain for use during manifold piping installation 3 Install replacement gas valve to the brass elbow in the gas supply inlet NOTE When installing clean gas pipe threads and apply pipe joint compound to threads Any Pipe joint compond 5 Check for proper operation FRYERS WITH MANUAL IGNITION D amp C MODEL CONTROLS WARNING DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AND FOLLOW LOCKOUT TAGOUT PROCEDURES WARNING SHUT OFF THE GAS BEF
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