AIC Nesta N 120 FS, Installation And Maintenance Manual, Page: 45 / 72

I-45
A-070336_EN • Rev. A
M
aintenance
Tasks
@ inspection
(1 year)
@ maintenance
(2 years max)
Check that the boiler room ventilation / boiler air and flue
ducts are unobstructed.
X X
Verify flue gas and combustion air ducts are in good condi-
tion, sealed tight and properly supported.
X X
Open the front panel and check the general condition inside
the cabinet. Clean and vacuum as required.
X X
Clean the condensate pipe and trap. Refer to “Cleaning the
Condensate Pipe and Trap” on page I-47.
X X
Clean/service the condensate neutralisation system (if any).
Refer to manufacturer’s documentation.
X X
Clean any filter/dirt separator, plate heat exchanger or bal-
ance header present in the hydraulic system, as required.
Refer to manufacturer’s documentation.
X X
Check for leaks, both inside and outside the appliance: wa-
ter, gas, flue and condensate.
X X
Check boiler water pressure (at least 1.2 bar when cold). Top
up the system with water if required.
X X
Check the operation of the burner (flame) through the sight
glass and that the combustion parameters (CO & CO
2
) are
according to requirements. See “Combustion and Gas
Data” on page G-15.
X X
Check the gas pressure and that the gas supply shut-off
devices are operating properly.
X
Check that the pump(s) is/are operating properly. X
Check that the fan is operating properly. X
Remove the burner and check its general condition. Clean
as required. See “Removing and Installing the Burner” on
page I-51.
X
Replace the ignition and ionization electrodes. Refer to “Re-
moving and Installing the Ignition and Ionization Elec-
trodes” on page I-50.
X
Check all control wiring and connections. X X
Check the condition of the combustion chamber and clean it
if required. See “Checking and Cleaning the Combustion
Chamber” on page I-52.
X
Check water quality and record in log sheet, See “Water
Parameters - Log Sheet” on page I-70
X X
Check the operation of the flue damper (non-return valve),
if any, and perform the required maintenance. Refer to the
manufacturer’s documentation.
X X
Record the operations and results in the Log Sheets provid-
ed at the end of the manual
X X
Maintenance Requirements