Start-Up; Maintenance - Joannes CLIZIA 24 AS Instrucciones De Uso

3.2 Start-up

B
Checks to be made at first lighting, and after all maintenance operations involving disconnection from the sys-
tems or an intervention on safety devices or parts of the boiler:
Before lighting the boiler
• Open any on-off valves between the boiler and the systems.
• Check the tightness of the gas system, proceeding with caution and using a soap and water solution to detect any
leaks in connections.
• Check the correct preloading of the expansion tank (ref. sec. 4.4)
• Fill the water system and make sure that all air contained in the boiler and the system has been vented by opening
the air vent valve on the boiler and any vent valves on the system.
• Make sure there are no water leaks in the system, hot water circuits, connections or boiler.
• Check the correct connection of the electric system and the functioning of the earth system. l
• Check that the gas pressure value for heating is as required.
• Make sure there are no flammable liquids or materials in the immediate vicinity of the boiler
Checks during operation
• Ignite the appliance as described in sec. 1.3.
• Check the airtightness of the fuel circuit and water systems.
• Check the efficiency of the flue and air-fume ducts while the boiler is working.
• Check that the water is circulating properly between the boiler and the systems.
• Make sure that the gas valve modulates correctly in both the heating and hot water production phases.
• Check the proper ignition of the boiler by performing various tests, turning it on and off with the room thermostat or
remote control.
• Make sure that the fuel consumption indicated on the meter corresponds to that given in the technical data table in
sec. 4.4.
• Make sure that with no call for heating the burner correctly ignites on opening a hot water tap. Check that during
heating operation, on opening a hot water tap, the heating circulator stops and there is a regular production of hot
water.
• Check the parameters are programmed correctly and perform any required customization (compensation curve,
power, temperatures, etc.)

3.3 Maintenance

Periodical check
To ensure correct appliance operation over time, have qualified personnel perform a yearly check, providing for the fol-
lowing:
• The control and safety devices (gas valve, flow meter, thermostats, etc.) must function correctly.
• The unit's fume exhaust system must be perfectly efficient.
(Sealed chamber boiler: fan, pressure switch, etc. - The sealed chamber must be tight: gaskets, cable glands, etc.)
(Open chamber boiler: anti-backflow device, fume thermostat, etc.)
• The air/fume terminal and ducts must be free of obstructions and leaks
• The burner and exchanger must be clean and free of deposits. Do not use chemical products or wire brushes to
clean.
• The electrodes must be free of scale and properly positioned.
• The gas and water systems must be tight.
• The water pressure in the cold water system must be about 1 bar; otherwise bring it to that value.
• The circulating pump must not be blocked.
• The expansion tank must be filled.
• The gas flow and pressure must correspond to that given in the respective tables.
The boiler shell, control panel and aesthetic parts can be cleaned with a soft damp cloth, possibly soaked in
A
soapy water. Do not use abrasive detergents or solvents.
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cod. 3540G161 - 05/2007 (Rev. 00)
CLIZIA 24 AS
EN