ECONCEPT TECH 35 A
22 EN
cod. 3540I341 - 04/2008 (Rev. 00)
3.3 Maintenance
Periodical check
To keep the unit working properly over time, it is necessary to have qualified personnel make an annual check that in-
cludes the following tests:
• The control and safety devices (gas valve, flow meter, thermostats, etc.) must function 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 obstructions.
• 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.
A
The boiler casing, panel and aesthetic parts can be cleaned with a soft damp cloth, possibly soaked in soapy
water. Do not use any abrasive detergents and solvents.
Opening the casing
To open the boiler casing (fig. 29):
1. Undo the screws (1)
2. Open, turning the casing (2)
3. Lift and remove the casing (3)
fig. 29 - Opening the casing
3
1
2
1
e
c
o
com
fort
r
eset
1
2
3
4
0
BAR
e
c
o
c
omfor
t
res
et
1
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4
0
BAR
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