Service And Maintenance - Ferroli ECONCEPT 51 A Instrucciones De Uso

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ECONCEPT 51 A

4. SERVICE AND MAINTENANCE

All adjustment, conversion, commissioning and maintenance operations described be-
low must only be carried out by Qualified Personnel (meeting the professional technical
requirements prescribed by current regulations) such as those of the Local After-Sales
Technical Service.
FERROLI declines any liability for damage and/or injury caused by unqualified and un-
authorised persons tampering with the unit.
4.1 Adjustments
Gas conversion
The unit can operate on Natural Gas or LPG and is factory-set for use with one of these
two gases, as clearly shown on the packing and on the dataplate. Whenever a different
gas to that for which the unit is arranged has to be used, a conversion kit will be required,
proceeding as follows:
1.
Loosen the gas valve fixing ring "A".
2.
Remove the seal "E" and replace gas nozzle "D" with the one contained in the con-
version kit.
3.
Refit the parts and check the tightness.
4.
Modify the parameter on the control system.
put the boiler in standby mode
press the DHW buttons (details 1 and 2 - fig. 1) for 10 seconds: the display
shows "P01" flashing.
Press the DHW buttons (details 1 and 2 - fig. 1) to set parameter 00 (for natural
gas operation) or 01 (for LPG operation).
press the DHW buttons (details 1 and 2 - fig. 1) for 10 seconds.
the boiler will return to standby mode
5.
Apply the label, contained in the conversion kit, near the dataplate.
6.
Using a combustion analyser connected to the boiler fume outlet, make sure the
CO
content in the fumes, with the boiler operating at max. and min. output, com-
2
plies with that given in the technical data table for the corresponding type of gas.
fig. 29 - Gas conversion
TEST mode activation
Press the heating buttons
5 seconds to activate the TEST mode. The boiler lights at the maximum heating power
set as described in the following section.
The heating symbol (detail 13 - fig. 1) and DHW symbol (detail 9 - fig. 1) flash on the dis-
play; the heating power will be displayed alongside.
fig. 30 - TEST mode (heating power = 100%)
To deactivate the TEST mode, repeat the activation sequence.
The TEST mode is automatically disabled in any case after 15 minutes.
Heating power adjustment
To adjust the heating power, switch the boiler to TEST mode (see sec. 4.1).
Press the heating buttons (details 3 and 4 - fig. 1) to increase or decrease the power
(min. = 00 - max. = 100).
Press the reset button (detail 8 - fig. 1) within 5 seconds; the max. power will remain
that just set. Exit the TEST mode (see sec. 4.1).
A
E
D
(details 3 and 4 - fig. 1) at the same time for
eco
reset
comfort
cod. 3540S566 - Rev. 01 - 02/2015
4.2 Start-up
B
Checks to be made at first lighting, and after all maintenance operations that
involved disconnection from the systems or an operation 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 correct prefilling of the expansion tank (ref. sec. 5.4).
Fill the water system and make sure 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.
Fill the condensate trap and check correct connection of the condensate elimination
system.
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 value for heating is that required.
Make sure there are no flammable liquids or materials in the immediate vicinity of
the boiler
Checks during operation
Turn the unit on as described in sec. 2.3.
Make sure the fuel circuit and water systems are tight.
Check the efficiency of the flue and air-fume ducts while the boiler is working.
Check the correct tightness and functionality of the condensate elimination system
and trap.
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 phases.
Check proper boiler lighting by doing several tests, turning it on and off with the room
thermostat or remote control.
Using a combustion analyser connected to the boiler fume outlet, check that the
CO
content in the fumes, with the boiler operating at max. and min. output, corre-
2
sponds to that given in the technical data table for the corresponding type of gas.
Make sure the fuel consumption indicated on the meter matches that given in the
technical data table on sec. 5.4.
Check the correct programming of the parameters and carry out any necessary cus-
tomization (compensation curve, power, temperatures, etc.).
4.3 Maintenance
Periodical check
To keep the unit working properly over time, it is necessary to have qualified personnel
make an annual check that includes the following tests:
The control and safety devices (gas valve, flow meter, thermostats, etc.) must func-
tion correctly.
The fume extraction circuit must be fully efficient.
The airtight chamber must be sealed
The air-fume end piece and ducts must be free of obstructions and leaks
The condensate evacuation system must be efficient with no leakage or obstruc-
tions.
The burner and exchanger must be clean and free of scale. When cleaning, do not
use chemical products or wire brushes.
The electrode must be free of scale and properly positioned.
The gas and water systems must be airtight.
The water pressure in the cold water system must be about 1 bar; otherwise, bring
it to that value.
The circulation 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 casing, panel and aesthetic parts can be cleaned with a soft damp
A
cloth, possibly soaked in soapy water. Do not use any abrasive detergents and
solvents.
43
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