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Istruzioni per l'uso Vulcan-Hart, Modello ML-52201

Produttore : Vulcan-Hart
File Size : 10.64 mb
File Nome :
Lingua di insegnamento: en
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If the gas supply piping is to be tested at a pressure equal to or less than 1/2 psi (3.45 kPa), the individual shutoff valve must be closed during testing. REGULATOR ADJUSTMENT 3. Light all burners and take a reading. (ALL MODELS) 4. Light all the gas appliances on the same supply line and take a reading. WARNING: SHUT OFF THE GAS BEFORE SERVICING. A. At no time should the pressure drop more than 1/2” W.C. A large pressure drop Accurate gas pressure adjustment can only be made could be an indication that the gas supply with the gas on and the burner lit. In addition the line is too small or a blockage. Check supply line pressure to the broiler must be at least supply line pressure to ensure that it is at 1.0” W.C. greater than what is stated on the broiler least 1.0” greater than the specified unit rating plate. operating pressure of the broiler. Check with the gas provider for the proper size Regulators are preadjusted for natural or propane gas gas line. as specified on the broiler rating plate. 1. Connect the manometer to the main gas manifold pipe of the broiler. Turn on gas. 2. Light one burner and take a reading. – 28 – PILOT ADJUSTMENT (ALL MODELS) 1. Light the pilot as outlined under Lighting Pilot in the Installation and Operation manual for the appropriate model. 2. Locate the pilot adjustment screw on the supply end of pilot manifold pipe. 3. With a flat blade screwdriver, turn the pilot adjustment screw counterclockwise to increase or clockwise to decrease gas flow. The flame should only be high enough to ignite the burner in less than 4 seconds. BURNER VENTURI AIR SHUTTER ADJUSTMENT [GHCB40 AND HCB2(B)] The gas burners have a disk type air shutter. The disk type is used on cast iron burners. All burners are tested and the air shutters are set at the factory prior to shipment. However, fine tuning adjustments may be necessary. When using natural gas, the air shutter will be approximately 50% open. On propane (LP), the air shutter will be approximately 90% open. 1. For GHCB40 remove the burner box cover as outlined under Covers, Panels and Handles in Removal and Replacement of Parts Section of this manual. 2. For HCB2(B) remove the burner box cover as outlined under Covers, Panels and Handles in Removal and Replacement of Parts Section of this manual. 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 adjuster. 7. Install front covers when complete. – 29 – BURNER SERVICE (ALL MODELS) WARNING: SHUT OFF THE GAS BEFORE SERVICING THE OVEN. If the burner ports become obstructed or the burner cracks, t...

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