55
12
SERVICING INSTRUCTIONS
12 .1
General
To en
sure the
continued safe and efficient operation of the boiler, it
is recommended that it is checked and serviced at regular intervals.
Maintenance is mandatory once a year.
If the application works in heavy duty conditions it may requires an
higher frequency of maintenance than yearly (*), refer in any case
to the yearly check list (paragraph 13.2.1).
(*) Higher frequency of maintenance is necessary under below
condition:
-
Needs identified during yearly check
-
Efficiency reduction, a fault, malfunction or breakage.
-
Gas with high sulphur rates, still inside the range of acceptability
but close the limits declared: a maximum annual peak over a
short period of time of 150 mg/m3 and an annual average of 30
mg/m3.
-
Water Hardness, pH and Chlorine concentration still inside
the range of acceptability but close the limits declared in
manufacturer’s instructions
-
Air for combustion drawn from an area with dust, debris or
airborne contaminants
-
In the case of works or maintenance of structures located near
the flue and/or air ducts and their accessories
-
Frequents on-off cycles
-
Boiler oversized or undersized compared to the real needs of
the building, that leads to frequent ON-OFF cycles or boiler
operation much longer than the usual annual average.
It is essential that any worn or failed component be replaced only
with genuine spare parts.
Use of non-genuine spare parts could void your warranty and may
pose a potential safety hazard.
The following instructions apply to the appliance and its controls,
however, it is important to pay attention also to the maintenance
of the central heating and the domestic hot water systems and all
plant components.
9
WARNING:
Before commencing any maintenance operations,
make sure the boiler is disconnected from the power supply.
9
WARNING:
To avoid potential of severe burn, DO NOT REST
HANDS ON OR GRASP PIPES. Use a light touch; heating
piping and hot water outlet piping will heat up quickly.
9
WARNING:
After servicing, reset the original operating
parameters of the boiler if they were changed.
12 .2 Maintenance
9
WARNING:
In the boiler there are gas, flue
and electrical
hazards so maintenance and REGULAR SERVICE
must be
performed by a qualified service agency.
9
WARNING:
Regular
service and maintenance are mandatory to
ensure safety for the users and maximum operating efficiency
and life of the appliance. Furthermore it allows for reduction
of consumption, polluting emissions and keeping the product
reliable over time.
The frequency of servicing will depend upon the particular
installation conditions, but, in general, at least once per year must
be done.
The State Boilers Laws require that any service work is carried out
by a competent person such as a qualified technician, an approved
service agent, or other suitably qualified personnel.
Tools for maintenance operations:
-
A dynamometer device
-
A combustion analyse
r
-
A vacuum cleaner
-
White vinegar in a spray bottle
-
A nylon hand brush
-
A nylon mechanic brush with a portative drill
-
Mains water
12 .3 Maintenance program
To ensure the continued safe and efficient operation of the
boiler, it is recommended that it is checked and serviced
at regular intervals. Maintenance is mandatory according
the below schematic program, refer to the table and to the
relevant explanation that the table refer to.
- The yearly maintenance is also highlighted on the display
with CALL FOR SERVICE (refer to paragraph “Lights and
Faults” for understand the conditions related to the CALL
FOR SERVICE.
- The maintenance must be done every year or each
time that alarm E91 appears on the boiler display (refer
to paragraph “Lights and Faults” for understand the
conditions related to the E91)
- The first maintenance is intended within 365 days from
first ignition and the followings maintenances within 365
days from the previous one
WARNING:
once the maintenance operation has been
completed, reset the total hour meter to zero (0), refer to
E091 alarm, as indicated in paragraph “11.11.11 Reset
flue hour counter”.
Yearly
maintenance
program
Yearly
maintenance
program
Door gasket
maintenance
procedure
Gas valve
Year 1
X
Year 2
X
X
Year 3
X
Year 4
X
X
Year 5
X
Year 6
X
X
Year 7
X
Year 8
X
X
Year 9
X
Year 10
X
X
X
Yearly maintenance program
1
Check that area is free from combustible materials, gasoline
and other flammable vapors and liquids.
2
Visually check top of vent for soot. Call service person to
clean. Some sediment at bottom of vent is normal.
3
Clean the screens in the vent terminal
4
Visually inspect all flue product carrying areas of the boiler
including the venting system and main burner for proper
functioning, deterioration or leakage.
5
Verify that the vent is not obstructed. Check for and remove
any obstruction to the flow of combustion or ventilation air
to heater.
6
Venting must be pitched towards the boiler to allow
condensate to drain
7
Ensure that condensate drains are inspected and ensure
that condensate is being directed to appropriate condensate
management system or drain, as required by local codes.
8
Check operation of safety devices.
9
Check fan and fan motor.
10
Check if there is any flue leakage from the heat exchanger
flue outlet and adaptors junctions. In case of leakage
detection replace the related gaskets (1).
11
Remove the burner door (8), check that combustion
chamber is free of deposits and proceed to clean.
12
Check the burner door insulation panel (6), gasket (4) and
high temperature glass braided rope (5) for deterioration,
and if they are worn, replace them.
