ECONCEPT SOLAR ST
21
EN
cod. -- - 11/2010 (Rev. 00)
3. Service and maintenance
All adjustment, conversion, commissioning and maintenance operations described below must only be carried out by Qual-
ified 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 unauthorised persons tampering with
the unit.
3.1 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 gas different from that for which the unit is arranged has to be used, a
conversion kit will be required, proceeding as follows:
1. Remove the casing.
2. Open the sealed chamber.
3. Replace the nozzle
A
inserted in the mixer, with that contained in the conversion kit.
4. Reassemble and check the tightness of the connection.
5. Apply the label, contained in the conversion kit, near the dataplate.
6. Refit the sealed chamber and casing.
7. Modify the parameter for the type of gas:
•
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 fig. 1 (details 1 and 2 -
) to set parameter
00 (for natural gas) or
01
(for LPG ).
•
press the DHW buttons (details 1 and 2 - fig. 1) for 10 seconds.
•
the boiler will return to standby mode
8. Check the working pressure.
9. Using a combustion analyser connected to the boiler fume outlet, check that the CO
2
content in the fumes, with the
boiler operating at max. and min. power, matches that given in the technical data table for the corresponding type
of gas.
fig. 26 - Gas nozzle replacement
A
