11 SERVICE AND PARTS INFORMATION ............................................................................... 11 GRIDDLE PLATE INSTALLATION ...........................................................................................6 — 4 — GENERAL Gas fired broilers are designed for commercial use only and feature fast, efficient gas heat. Each burner is controlled by an adjustable on/off gas valve. Model Number BTU/hr Input of Burners Rating 3 VST4B @ 45,000 ea. 135,000 UNPACKING Immediately

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 to be all encompassing. If you have not attended a Vulcan Service School for this product, you should read, in its entirety, the repair procedure you wish to perform to determine if you have the necessary tools, instruments and skills required to perform the procedure. Procedures for which you do not have the necessary tools, inst

(Removal of the kick panel is necessary to access plate.) HCB1/2(B) Riveted to front right-hand corner of the lower shelf. GHIR44 Riveted to the door liner behind the left hand door panel. IR1/2(B) Riveted to lower cabinet bottom shelf. Gas Data Model Dimensions No. of Burners per Section Total BTU /hrWidth Depth Height GHCB40 34” 391/8” 79” 4 100,000 GHCB44 34” 391/8” 79” 4 100,000 GHMCB44 34” 391/8” 57” 4 100,000 HCB1 36” 383/8” 68” 4 50,000 HCB2(B) 36” 383/8” 801/2” 4 100,000 IR1 36” 383/8” 6

26 GHIR44............................................................................................................................................... 26 IR1 and IR2(B) .................................................................................................................................... 27 Blower Switch (GHIR44) ..................................................................................................................... 27 Light (GHIR44) ..................................

5. Reverse the procedure to install. GHIR44 WARNING: SHUT OFF THE GAS BEFORE SERVICING. 1. Allow the burner assembly to cool. 2. Lift the rear of the burner assembly off the alignment pins. 3. Carefully move the burner assembly to the rear of the broiler and then remove burner from the broiler. CAUTION: Make sure that you do not damage the pilot burner nozzle when you remove the burner assembly. 4. Reverse the procedure to install. – 13 – HEAT SHIELD (GHIR44) WARNING: SHUT OFF THE GAS BEFORE SER

The regulator is preset at the factory for 6" W.C. (Water Column) for Natural Gas; 10" W.C. for Propane. No further adjustment should be required. Use the 1/8" pipe tap on the burner manifold for checking pressure. Make sure the gas piping is clean and free of obstructions, dirt, and piping compound. An adequate gas supply is necessary. Undersized or low pressure lines will restrict the volume of gas required for satisfactory performance. The recommended maximum supply pressure (upstream of the

9 Augratin Oven Bottom Assembly (GHCB40) ....................................................................................... 10 Oven Door Handle (GHCB40) .............................................................................................................. 10 Broiler Grid Tray (All Models) ..................................................................................................................... 11 Grid Carriage Assembly (All Models) ........................................

3. Loosen the air shutter adjustment screw. 4. Turn the burner on . If the flame is soft, lazy or yellow, there is not enough primary air and the air shutter needs to be opened up. If the flame is lifting off the burner, there is too much primary air and the air shutter needs to be closed down. 5. Rotate the air shutter so that a blue flame without any yellow tipping is seen across the burner. 6. Once the proper adjustment is made, carefully tighten the adjustment screw without moving the air ad

4 GHIR44................................................................................................................................................. 4 IR1/2(B) ................................................................................................................................................ 4 Specifications ............................................................................................................................................. 4 Gas Data ....................

DO NOT USE AN OPEN FLAME. 1. Remove the manifold cover assembly as outlined in Covers, Panels and Handles. 2.Disconnect the burner tubing from the burner valve. 3.Disconnect the burner valve from the sub- manifold. 4.Remove the burner valve from the broiler. 5.Reverse the procedure to install. Regulator (GHIR44) WARNING: DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AND FOLLOW LOCKOUT / TAGOUT PROCEDURES. WARNING: SHUT OFF THE GAS BEFORE SERVICING. WARNING: ALL GAS JOINTS DISTURBED DURING SERVI