Ferroli DIVACONDENS D PLUS F 24 Instrucciones De Uso, Instalación Y Mantenimiento página 47

DIVACONDENS D PLUS F 24
Press the Heating buttons to scroll the list of faults in increasing or decreasing order.
Press the DHW buttons to display the value.
Press the Reset button to return to the Service Menu. Press the Reset button for 20 sec-
onds to exit the card Service Menu, or exiting occurs automatically after 15 minutes.
"rE" - History Reset
Press the Eco/Comfort button for 3 seconds to delete all the faults stored in the History
Menu: the card will automatically exit the Service Menu, in order to confirm the operation.
Press the Reset button for 20 seconds to exit the card Service Menu, or exiting occurs
automatically after 15 minutes.
4.2 Commissioning
Before lighting the boiler
• Check the seal of the gas system.
• Check correct prefilling of the expansion tank.
• Fill the water system and make sure all air contained in the boiler and the system
has been vented.
• Make sure there are no water leaks in the system, DHW circuits, connections or boil-
er.
• Check correct connection of the electrical system and efficiency of the earthing sys-
tem.
• Make sure the gas pressure for heating is that required.
• Make sure there are no flammable liquids or materials in the immediate vicinity of
the boiler
IF THE ABOVE INSTRUCTIONS ARE NOT
B
OBSERVED THERE MAY BE RISK OF SUF-
FOCATION OR POISONING DUE TO GAS
OR FUMES ESCAPING; DANGER OF FIRE
OR EXPLOSION. ALSO, THERE MAY BE A
RISK OF ELECTRIC SHOCK OR FLOOD-
ING THE ROOM.
Checks during operation
• Switch the unit on.
• Check the tightness of the fuel circuit and water systems.
• Check the efficiency of the flue and air/fume ducts while the boiler is working.
• Make sure the water is circulating properly between the boiler and the systems.
• Make sure the gas valve modulates correctly in the heating and domestic hot water
production stages.
• Check correct boiler lighting by performing various tests, turning it on and off with
the room thermostat or remote control.
• Make sure the fuel consumption indicated on the meter matches that given in the
technical data table in cap. 5.
• Make sure that with no demand for heating, the burner lights correctly on opening a
hot water tap. Check that in heating mode, on opening a hot water tap, the heating
circulating pump stops and there is regular production of hot water.
• Make sure the parameters are programmed correctly and carry out any required
customisation (compensation curve, power, temperatures, etc.).
4.3 Maintenance
IMPORTANT
ALL MAINTENANCE WORK AND RE-
B
PLACEMENTS MUST BE CARRIED OUT
BY SKILLED QUALIFIED PERSONNEL.
Before carrying out any operation inside
the boiler, disconnect the power and close
the gas cock upstream. Otherwise there
may be a danger of explosion, electric
shock, suffocation or poisoning.
Cleaning of the nozzles must not be done
B
with metal implements which could modify
the foreseen nominal diameter.
Periodical check
To ensure proper operation of the unit over time, have qualified personnel carry out a
yearly inspection, providing for the following checks:
• The control and safety devices (gas valve, flow switch, thermostats, etc.) must func-
tion correctly.
• The fume exhaust circuit must be perfectly efficient.
(Sealed chamber boiler: fan, pressure switch, etc. - The sealed chamber must be
tight: seals, cable glands, etc.)
(Open chamber boiler: anti-backflow device, fume thermostat, etc.)
• The air-fume end piece and ducts must be free of obstructions and leaks
• The burner and exchanger must be clean and free of deposits. For cleaning do not
use chemical products or wire brushes.
• The electrode must be properly positioned and free of any deposits.
• The gas and water systems must be tight.
• The water pressure in the system when cold must be approx. 1 bar; otherwise bring
it to that value.
• The circulating pump must not be blocked.
• The expansion vessel must be filled.
• The gas flow and pressure must match that given in the respective tables.
cod. 3541P653 - Rev. 01 - 03/2021
97
fig. 23- Electrode positioning
EN
47