Checking The Gas Setting - Ferroli EXTERNO 11 User Manual

WARNING!!
Water with a temperature higher than 50° causes serious burns.
Always verify water temperature before use.

37. CHECKING THE GAS SETTING

fig. 12 - Mod. 11 and 16
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 hot water tap.
The supply pressure should correspond to the value established in relation to the type of gasfor which
the appliance is designed.
WARNING!!
SHOULD THE POWER PRESSURE NOT CORRESPOND TO WHATINDICATED ON THE GAS SUMMARY TA-
BLE, DO NOT ACTIVATE THEAPPLIANCE.
5. Switch the appliance OFF by closing the water 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.
The pressure setting process is fixed, and users can only follow the settingsequence step by step.
58
EN
Cod. 3541T440 - Rev. 05 - 02/2020
EXTERNO
fig. 13 - Mod. 22 and 26