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SERVICE MANUAL
HEAVY DUTY GAS BROILER
MODELS
GHCB40 ML-052211
GHCB44 ML-052213
GHMCB44 ML-052214
HCB1 ML-052202
HCB2(B) ML-052208
IR1 ML-052200
IR2(B) ML-052201
GHIR44 ML-052210
GHCB40 SHOWN
– NOTICE –
This Manual is prepared for the use of trained Vulcan Service Technicians and should not be used by those not properly
qualified. If you have attended a Vulcan Service School for this product, you may be qualified to perform all the procedures
described in this manual.
This manual is not intended
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TABLE OF CONTENTS GENERAL................................................................................................................................................................ 4 Introduction ................................................................................................................................................. 4 Installation and Operation ............................................................................................................................
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Gas Valves, Tubing, Thermostats, Regulators and Solenoids.................................................................... 18 Burner Manifold Assembly (GHCB40) ................................................................................................. 18 Burner Manifold Assembly (GHIR44) .................................................................................................. 19 Oven Pilot Valve (GHCB40) .......................................................................
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GENERAL SPECIFICATIONS INTRODUCTION Gas Data This service manual was specially written for the Heavy Duty Gas Broilers. Dimensions No. of Total Burners BTU Model per /hr Width Depth Height INSTALLATION AND OPERATION Section 1 GHCB40 34” 39 /8” 79” 4 100,000 Detailed installation and operation instructions are included in the Installation and Operation Manual 1 GHCB44 34” 39 /8” 79” 4 100,000 which is sent with each Broiler. 1 GHMCB44 34” 39 /8” 57” 4 100,000 CLEANING 3 HCB1 36” 38 /8” 68” 4 50,0
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IMPORTANT STOP BOLTS MUST BE IN POSITION FOR SAFE OPERATION OF GRID. IF DAMAGED OR MISSING, REPLACE AT ONCE. DO NOT OPERATE GRID WITHOUT BOLTS. Two (2) broiler grid 1/4-20 stop bolts and nuts are supplied with each broiler grid to ensure that the grid is not accidentally pulled completely from the broil section while hot. One (1) stop bolt and nut are mounted to the grid carriage RT. and LT. HD. side member through a 0.281 diameter hole directly in front of the grid stop tab. The stop nuts and b
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REMOVAL AND REPLACEMENT OF PARTS 5. Lift and remove the burner box cover from the broiler. COVERS, PANELS AND HANDLES 6. Reverse the procedure to install. Burner Box Cover (GHCB40, GHCB44, Burner Shield Cover [HCB2(B), IR1, GHIR44) IR2(B)] WARNING: SHUT OFF THE GAS BEFORE WARNING: SHUT OFF THE GAS BEFORE SERVICING. SERVICING. NOTE: The models HCB2(B) and IR2(B) have two burner shield covers. 1. Open the augratin oven door. 1. Remove the two screws from the burner shield 2. Remove the oven rack.
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Manifold Cover Assembly (GHCB40 & GHIR44) WARNING: SHUT OFF THE GAS BEFORE SERVICING. 1. Remove the grease tray from the broiler 1. Loosen the mounting screw in each burner (GHCB40 only). knob. NOTE: The GHIR44 manifold cover assembly has 2. Remove the burner knob. a chain to protect switch wiring. 2. Loosen the mounting screw in each burner knob. 3. Remove the two burner knobs from the broiler. 4. Remove the two screws from the manifold cover assembly. 5. Remove the manifold cover assembly from
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Control Panel Cover (GHCB40) 4. Remove the bolt and the control panel cover from the broiler. 1. Remove the manifold cover assembly as 5. Reverse the procedure to install. outlined in Manifold Cover Assembly. Lower Front Panel (GHCB40) 1. Grasp the bottom of the lower front panel. 2. Pull the lower front panel out to remove it from the broiler. 2. Loosen the retaining screw and remove the burner knob from the broiler. 3. Reverse the procedure to install. 3. Pull the thermostat knob to remove it
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Oven Bottom Assembly (GHCB40) WARNING: SHUT OFF THE GAS BEFORE 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. Remove the lower front panel as outlined in Covers, Panels and Handles. 2. Open oven door. 3. Remove rack if necessary. 7. Remove the oven bottom baffle from the broiler. 8. Remove the oven insulation sheet. 4. Remove the two screws and brass bushings from the broiler. 5.
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Augratin Oven Bottom Assembly (GHCB40) WARNING: ALL GAS JOINTS DISTURED DURING SERVICING MUST BE CHECKED FOR LEAKS. CHECK WITH SOAP AND WATER SOLUTION (BUBBLES). DO NOT USE AN OPEN FLAME. 3. Remove the augratin oven bottom baffle from the broiler. 4. Reverse the procedure to install. NOTE: When installing bottom assembly, angle metal should be at the rear of the oven. Oven Door Handle (GHCB40) 1. Remove the four screws and brass bushings from the broiler. 1. Remove the caps from the oven door. 2
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GRID CARRIAGE ASSEMBLY (ALL MODELS) WARNING: SHUT OFF THE GAS BEFORE 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. WARNING: SPRING AND HOOK BOLT ARE UNDER TENSION. 1. Remove the broiler grid tray as outlined in 2. Remove two screws and the oven door handle Broiler Grid Tray. from the oven door. 2. Remove cover manifold cover assembly as 3. Reverse the procedure to install. outlined
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BURNER CERAMICS (GHCB40) WARNING: SHUT OFF THE GAS BEFORE SERVICING. NOTE: Lower broiler pan for easier access. 1. Allow the burner ceramics to cool. 4. Remove the grid handle from the grid arm lifting assembly. 5. Remove two bolts, six washers and two nuts from the grid arm lifting assembly and the grid carriage assembly. 6. Remove the grid arm lifting assembly from the grid carriage assembly and the broiler. 2. Carefully push up on the side and center ceramics to remove from the broiler. 3. R
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GHIR44 BURNER ASSEMBLY WARNING: SHUT OFF THE GAS BEFORE GHCB40 & HCB2(B) SERVICING. WARNING: SHUT OFF THE GAS BEFORE 1. Allow the burner assembly to cool. SERVICING. 1. Remove the burner ceramics as outlined under Burner Ceramics. 2. Remove burner box cover as outlined in Controls, Panels and Handles. 2. Lift the rear of the burner assembly off the alignment pins. 3. Carefully move the burner assembly to the 3. Allow the burner assembly to cool. rear of the broiler and then remove burner from th
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HEAT SHIELD (GHIR44) WARNING: SHUT OFF THE GAS BEFORE SERVICING. 1. Remove burner assemblies as outlined in Burner Assembly. 4. Remove the pilot elbow nozzle from sub- manifold assembly. 5. Reverse the procedure to install. SUB-MANIFOLD ASSEMBLY GHCB40 WARNING: SHUT OFF THE GAS BEFORE 2. Remove the cotter pin from the shaft of the SERVICING. heat shield. WARNING: ALL GAS JOINTS DISTURBED 3. Remove the heat shield from the broiler. DURING SERVICING MUST BE CHECKED FOR 4. Reverse the procedure to
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3. Remove the two nuts and washers from the sub-manifold and the bracket. 4. Disconnect the sub-manifold from the elbow. 5. Remove the sub-manifold from the broiler. 6. Reverse the procedures to install. BURNER SUB-MANIFOLD (GHIR44) WARNING: SHUT OFF THE GAS BEFORE 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. NOTE: These procedures apply to the left and right side burner subassemb
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5. Loosen the two nuts on the burner sub- manifold. 6. Remove the burner sub-manifold from the 3. Disconnect the four pilot burner nozzles from broiler. the pilot manifold. 7. Reverse the procedure to install. PILOT MANIFOLD (GHIR44) WARNING: SHUT OFF THE GAS BEFORE 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. Remove the burner box cover as outlined in Covers, Panels and Handles
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OVEN BURNER ASSEMBLY (GHCB40) WARNING: SHUT OFF THE GAS BEFORE 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. Remove the oven bottom assembly as outlined in Covers, Panels and Handles. 3. Remove the two screws and plate from the broiler. 2. Lift and remove the oven burner assembly from the broiler. 3. Reverse the procedure to install. 4. Remove the two screws and the pilot burner
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GAS VALVES, TUBING, THERMOSTATS, REGULATORS AND SOLENOIDS Burner Manifold Assembly (GHCB40) WARNING: SHUT OFF THE GAS BEFORE 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. Remove the manifold cover assembly as outlined in Covers, Panels and Handles. 6. Disconnect the oven gas supply tube from the burner manifold assembly. NOTE: For proper alignment of the gas tubing, make sure yo
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Burner Manifold Assembly (GHIR44) Oven Pilot Valve (GHCB40) WARNING: SHUT OFF THE GAS BEFORE WARNING: SHUT OFF THE GAS BEFORE SERVICING. SERVICING. WARNING: ALL GAS JOINTS DISTURBED WARNING: ALL GAS JOINTS DISTURBED DURING SERVICING MUST BE CHECKED FOR DURING SERVICING MUST BE CHECKED FOR LEAKS. CHECK WITH SOAP AND WATER LEAKS. CHECK WITH SOAP AND WATER SOLUTION (BUBBLES). DO NOT USE AN OPEN SOLUTION (BUBBLES). DO NOT USE AN OPEN FLAME. FLAME. 1. Remove the manifold cover assembly as 1. Remove
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2. Disconnect the oven burner valve from the oven gas supply tube and the union. 3. Disconnect the pilot valve tubing from the pilot outage protection valve. 3. Reverse the procedure to install. 4. Remove the oven bottom assembly as outlined Pilot Outage Protection Valve (GHCB40) in Covers, Panels and Handles. WARNING: SHUT OFF THE GAS BEFORE 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
