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Next Evo X - UK Manual

COMMISSIONING Checking

COMMISSIONING Checking the gas settings a 8. Press the On/Off, appliance forced to minimum power. The display shows a number from “00” to “99”. 9. On the manometer verify the pressure and if necessary press the the and (2) buttons to adjust minimum burner pressure as indicated on the gas settings table. 10. Press the On/Off button to confirm. 11. Close Hot water tap. Switch off the appliance through ON/OFF button. 12. Tighten the connector screw tightly and check for leaks using a suitable device b Supply pressure check 1. Close the gas valve. 2. Loosen screw “b” and insert the pressure gauge connection pipe into the pipe tap. 3. Open the gas valve. 4. Switch the appliance ON by opening a DHW tap. The supply pressure should correspond to the value established in relation to the type of gas for which the appliance is designed. WARNING!! Should the power pressure not correspond to what is indicated on the Gas Summary Table, DO NOT ACTIVATE THE DEVICE. Checking slow ignition power (see the Gas setting table) 1. Close the gas valve. 2. Loosen screw “a” and insert the manometer connection pipe into the pipe tap. 3. Open the gas valve. 4. Press the On/Off button the display will illuminate. 5. Disconnect and reconnect the power supply. 6. Press simultaneously press the or (2) buttons for 3 seconds. The display showsL6, ppliance forced to ignition power. Open one hot water tap. 7. On the manometer verify the pressure and if necessary press the or (2) buttons to adjust the slow ignition pressure as indicated on the gas settings table. 8. Press the ON/FF button to save the change. 9. Close Hot water tap. Switch off the appliance through ON/OFF button. 10. Close Hot water tap. Switch off the appliance through ON/OFF button. 11. Tighten the connector screw tightly and check for leaks using a suitable device 5. Switch the appliance OFF by closing the DHW tap. 6. Close the gas valve. 7. When the check is over, tighten screw “b” and make sure it is securely in place. 8. Open the gas valve and check the tightness of the screw. Checking the maximum and minimum pressure (see the Gas setting table) 1. Close the gas valve. 2. Loosen screw “a” and insert the manometer connection pipe into the pipe tap. 3. Open the gas valve. 4. Press the On/Off button the display will illuminate. 5. Open one hot water tap. Simultaneously press the and (2) buttons for 5 seconds. The display shows26. 6. Press the On/Off, appliance forced to maximum power. The display shows a number from “00” to “99”. 7. On the manometer verify the pressure and if necessary press the the and (2) buttons to adjust maximum burner pressure as indicated on the gas settings table. 20 /

COMMISSIONING Gas setting table NEXT EVO X SFT 11 NEXT EVO X SFT 16 G20 G30 G31 G20 G30 G31 Lower Wobbe index (15°C; 1013 mbares) MJ/m 3 45.67 80.58 70.69 45.67 80.58 70.69 Gas inlet pressure mbar 20 28-30 37 20 28-30 37 Gas Burner Pressure MAX mbar 12.10 12.60 15.90 9.5 10.8 12.50 Gas Burner Pressure MIN mbar 3.0 3.0 3.0 2.5 2.5 2.5 Slow ignition pressure mbar 7.3 7.4 10.4 4.8 4.7 6.5 Parameter L - appliance capacity code 11 11 11 16 16 16 Parameter q - gas type code 12 22 19 12 22 19 Parameter F - appliance type code 0 0 0 2 2 Main Burner jets 6X2 15x2 Ø burner jets mm 0.86 - 1.52 0.74 - 1.04 0.74 - 1.28 0.62 - 0.88 Max/min consumption (15°C, 1013 mbar) (N.G.= m 3 /h) (LPG kg/h)) Gas conversion The appliance may be adjusted so that it may be used with Liquid Gas (G30-G31) instead of methane gas (G20) or vice-versa. The adjustment must be performed by a Qualified Technician using the conversion Kit. To modify the parameter proceed as follow: 1. Switch Off the appliance, press the on/OFF button 2. Disconnect and reconnect the power supply. 3. Press and simultaneously for 3 seconds to access the parameters. 4. Use the ON / OFF key to access the parameters, modify the parameters and save the changes made. The parameters must be set as shown in the following table: MAX 2.33 1.85 1.81 3.17 2.52 2.47 2 Parameter L - appliance capacity code NEXT EVO X SFT 11 NEXT EVO X SFT 16 G20 G30 G31 G20 G30 G31 11 11 11 16 16 16 Parameter q - gas type code 12 22 19 12 22 19 Parameter F - appliance type code 0 0 0 2 2 2 / 21

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