ECONCEPT TECH 25 A
20
EN
cod. 3540I301 - 05/2008 (Rev. 00)
3. Service and maintenance
All adjustment, conversion, start-up and maintenance operations described below must only be carried out by Qualified Per-
sonnel (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 people tampering with the
unit.
3.1 Adjustments
Gas supply 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. Remove the casing.
2. Open the sealed chamber.
3. Release the fixing clip
C
and remove the gas pipe
A
from the fan - venturi assembly.
4. Replace the nozzle
B
inserted in the gas pipe with that contained in the conversion kit.
5. Reassemble the gas pipe
A
with the clip and check the seal of the connection.
6. Apply the plate contained in the conversion kit, near the dataplate.
7. Refit the sealed chamber and casing.
8. Modify the parameter for the type of gas:
•
switch the boiler to standby mode
•
press the DHW buttons
(detail 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 the parameter
00
(for operation with natural
gas) or
01
(for operation with LPG).
•
press the DHW buttons
(details 1 and 2 - fig. 1) for 10 seconds.
•
the boiler will return to the standby mode
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. output) complies with the value given in the technical data table for the corre-
sponding gas type.
fig. 27 - Gas supply conversion
