Vulcan ML-135504 - Manuals - manualsarea.com

Page 2 - TABLE OF CONTENTS

– 2 – © VULCAN-HART, 2004 TABLE OF CONTENTS GENERAL .............................................................................................................................................................. 3 Introduction .............................................................................

Page 3 - GENERAL

– 3 – INTRODUCTION Models This service manual was written for: GHF91G Gas Fryers and GHF90G Gas Frymates. INSTALLATION Generally, installations are made by the dealer orcontracted by the dealer or owner. Detailed installationinstructions are included in the Installation andOperation Manual, which is...

Page 4 - COVERS AND PANELS; REMOVAL AND REPLACEMENT OF PARTS; B U R N E R S

– 4 – COVERS AND PANELS W A R N I N G : S H U T O F F T H E G A S B E F O R E SERVICING. Door 1. Open door and using a 5 / 16 " wrench or ratchet, remove (2) screws securing the top doormounting bracket to the left body side channel. 2. Hold door in one hand and lift the door panel assembly off ...

Page 5 - THERMOSTAT

– 5 – THERMOSTAT W A R N I N G : S H U T O F F T H E G A S B E F O R E SERVICING. 1. Drain shortening from fry tank. 2. Remove left burner as outlined under Burners. 3. Remove thermostat knob by pulling knob off thermostat shaft. 4. Remove thermostat mounting screws and remove thermostat from mounti...

Page 7 - PILOT ORIFICE; COMBINATION VALVE

– 7 – 6. Remove thermopile from pilot bracket. 7. Reverse procedure to install. PILOT ORIFICE W A R N I N G : S H U T O F F T H E G A S B E F O R E SERVICING. WARNING: ALL GAS JOINTS DISTURBED DURING SERVICING MUST BE CHECKED FOR LEAKS.CHECK WITH SOAP AND WATER SOLUTION(BUBBLES). DO NOT USE AN OPEN ...

Page 8 - FRY TANK

– 8 – FRY TANK W A R N I N G : S H U T O F F T H E G A S B E F O R E SERVICING. WARNING: ALL GAS JOINTS DISTURBED DURING SERVICING MUST BE CHECKED FOR LEAKS.CHECK WITH SOAP AND WATER SOLUTION(BUBBLES). DO NOT USE AN OPEN FLAME. 1. Disconnect fryer from main gas supply. 2. Drain oil from tank. 3. Rem...

Page 9 - SERVICE PROCEDURES AND ADJUSTMENTS; MILLIVOLT CONTROLS TEST

– 9 – SERVICE PROCEDURES AND ADJUSTMENTS MILLIVOLT CONTROLS TEST 1. Verify proper gas (natural or propane) is present. 2. C h e c k f o r c o r r e c t w i r i n g a n d s e c u r e connections. 3. Verify the pilot flame is adjusted properly as outlined in Pilot Adjustment. 4. If the pilot is not li...

Page 12 - ELECTRICAL OPERATION

– 12 – 3. Total Shutdown. A . When the high limit trips, 0.0 millivolts w i l l r e a d a c r o s s b o t h c o i l s o f t h ecombination valve, causing both valvesto close. B . Pilot relight cannot be accomplished until oil cools sufficiently to allow high limit toclose. C. If any wire in the syst...

Page 14 - TROUBLESHOOTING; SYMPTOM

– 14 – TROUBLESHOOTING SYMPTOM 1. T h e t e m p e r a t u r e o f t h e s h o r t e n i n g d r o p s , o r e x c e s s i v e r e c o v e r y t i m e i s r e q u i r e d . POSSIBLE CAUSE A . Insufficient gas supply to unit. B . Ventilating system pulling heat out of heat exchanger and flue box. C. O...

Page 15 - POSSIBLE CAUSE

– 15 – SYMPTOM 4. Leaking tank. TROUBLESHOOTING POSSIBLE CAUSE A. Foam-over by depleted shortening permits oil to drip from the tank surface, giving theappearance of leaking. B . Careless draining procedures. Gas valve should be in the PILOT or OFF positionbefore draining oil. Burners heating an emp...

Page 16 - NOTES