Ferroli OPERA 70 Instrucciones De Uso, Instalación Y Mantenimiento página 178

• water and gas system tightness check
• check of correct and stable gas supply pressure to plant (20 mbar for operation with natural gas); any fluctuations
or pressure drops below the declared value can create malfunctioning and stops with need for manual resetting.
• burner ignition and control and safety device check (gas valve, flowmeter, thermostats, etc.)
• circulating pump check, freeing when necessary
• fume analysis and check of combustion parameters
The casing, control panel and aesthetic parts of the boiler can be cleaned with a soft damp cloth, possibly
A
soaked in soapy water. All abrasive detergents and solvents should be avoided.
Burner door opening
To access the burner observe the following instructions.
• Remove the cover and front panel (fig. 67).
• Remove the rear panels (fig. 68).
178
fig. 67
fig. 68
cod. 3541R963 - Rev. 00 - 09/2021
OPERA
EN