3V-490058NI – 12/21
- Switch off / on the oven and check that the setting has been saved correctly
3)
Change the gas nozzle with the nozzle corresponding to the new gas, see above " Chart of gas nozzles
4)
Connect the oven to the gas pipe
- Connect the appliance to the gas supply via a local isolation valve.
- Check for gas leaks: this is normative and under the responsibility of the installer. Gas leaks = danger for the user
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With gas leak / spray detectors, check the gas lines to make sure there are no leaks.
- Pressure point on the incoming side of the gas valve:
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Undo the pressure screw 2 or 3 turns open the gas valve
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Connect the water gauge hose to the pressure point and close the gas valve
Check the level of the water gauge for 1 minute. Reading unchanged or – 1 mbar
▪
5)
Check pressures :
- Static pressure (appliance not operating)
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Check the pressure using a water gauge
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The indicated pressure should be identical to or more than the pressure requested for this gas
- Connection pressure / dynamic pressure (appliance operating)
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Connect a water column pressure gauge to the pressure tap, when the burners are working. (all gas appliances in
operation, burners lit)
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The gas pressure thus measured must be within the pressure range of the pressure requested for the gas used.
6)
Carry out a burnt gas analysis and if necessary, adjust the CO2 screw of the gas valve for a CO<150ppm
- Procedure:
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Set the gas combustion testing appliance to show "CO2 rate in %"
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Place the probe of the gas testing aplliance in the oven chimney
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Put switch SW1 of the gas card to adjustment mode: put switch 1 of switch SW1 to "ON"
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Switch the oven on :
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Take the sample (always take the sample with the oven burner in operation). The percentage of CO2 measured must
correspond within +/- 0.2% to the required value for the gas type in the table below.
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Set the oven to "Dry Mode", "Temperature 480°F" and press "Start"
VULCAN
A division of ITW Food Equipment Group LLC
P.O. Box 696
Louisville, KY 40201
EN