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7
Maintenance
7 .1
General
NOTICE: The installer must inform the user about the
contents of this section. The user must make the necessary
arrangements with qualified service agency for the care and
periodic maintenance of the boiler.
CAUTION: Lack of care and maintenance of this boiler and
a
equipment may cause an unsafe condition.
A qualified and adequately trained technician must perform
m
the inspection as specified in these instructions and in the
Service Manual (provided separately) before each heating
season and at regular intervals.
WARNING: Servicing, inspection and adjustment must
a
be done by a trained technician in accordance with all
applicable local and national codes. Improper servicing or
adjustment could damage the boiler and result in equipment
damage or a dangerous condition!
7 .2
Maintenance / inspection schedule for end user
Time interval
Maintenance
Verify the cleanliness of the area around the
Annually
boiler
Annually
Check the pressure of the hydraulic system
Check vent piping and verify if leaks are
Annually
present
Annually
Check air piping and verify if leaks are present
Annually
Check relief valve
Monthly (follow local,
state, federal or local
Verify the condensate discharge system
authority having
jurisdiction guidelines)
Every two months
Test low water cut off
Every two months
Verify the reset button of low water cut off
Every six months
Check all piping (gas and water) for leaks
End of heating season
Shut off the boiler
Tab. 19 User maintenance / inspection schedule
7 .3
Maintenance / inspection schedule for licensed
contractor / gas fitter
Time interval
Maintenance
Annually *
Combustion test
Verify condition of flue and air system
Annually *
(including Venturi and fan)
Annually *
Check ignition electrode
Cleaning the combustion chamber (including
Annually *
the burner tube)
Annually *
Clean condensate discharge
Safety block check, modulation range check,
Annually *
gas valve closing after burner stop
Annually *
Check control parameters
Annually *
Check for gas piping leak
Annually *
Check wiring and connection
(*) Annually or every 2000 hours. Which occurs first.
Tab. 20 Licensed contractor / gas fitter maintenance / inspection schedule
SSB
Time interval
Maintenance
Annually *
Verify startup
Annually *
Verify the flame
Annually *
Check relief valve
Annually *
Inspect the burner gasket
(*) Annually or every 2000 hours. Which occurs first.
Tab. 20 Licensed contractor / gas fitter maintenance / inspection schedule
7 .3 .1
Gas leaking inspection
Verify all gas piping to ensure that there are no leaks.
DANGER: To verify the gas leaks use a soap solution or
a
a gas leak detector. Do not use methods that can cause
explosions!
7 .3 .2
Check exhaust and combustion air pipe system
Clear vent systems of any obstructions, corrosion, physical damage,
water stains, rust. Verify the connection between the single components.
Verify the outside terminations are clear. Clean the screens and the
louvers if there is any debris.
7 .3 .3
Inspection of ignition electrode
Verify that the electrode is clean of deposits and use a dollar bill or other
material to remove deposits as required.
3-5 mm
1
Fig. 73 Inspection of ignition electrode
No .
Description
1
Burner tube
2
Ignition electrode
7 .3 .4
Checking for wiring and connections
Check that all wiring is securely fastened and in good condition without
any cracking or alteration of isolation or presence of corrosion in metallic
connection.
7 .3 .5
Burner gasket inspection
You must maintain the boiler as outlined in this manual and have the
boiler started up and serviced at least annually by a qualified service
technician to ensure boiler/system reliability. This includes a combustion
test and the cleaning of the combustion chamber.
When disassembling the heat exchanger it is crucial to inspect the Burner
Gasket (green: part number 7738004985) for damage.
It is a must to replace the burner gasket when servicing and required if
there is any signs of wear, deformity or discoloration of the gasket and in
any case not later than every two years.
Maintenance | 45
2
6720818456 (2018/06) US
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