Specifications

36 Instructions for installation and servicing ecoTEC
7.1.2 Maintenance
Before commencing any servicing or maintenance work,
carry out an initial inspection of the system as follows:
• Inspect the flue, pipework and electrical connections
for indications of damage or deterioration.
• Inspect the air supply and ventilation arrangements of
the installation.
• Check the heating and water system, in particular the
condition of radiator valves, evidence of leakage from
the heating system and dripping hot water taps.
7.1.3 Overview of the inspection and maintenance
tasks
No. Activity
1) Inspection
must be carried
out once a year
2) Maintenance
recommended
every fifth year
1 Check the air/ gas flue system and ensure it is not blocked, damaged and is fitted correctly. x x
2
Measure the gas rate during operation (see table 5.1. inside the chapter commissioning part I).
If the gas rate is lower the minimum gas rate follow the maintenance instructions (column 2)!
xx
3
Check combustion by measuring CO and CO
2
values, compare to table 9.2. If the measurement
is outeside the tolerances follow the maintenance instructions! In the case that no flue gas
analyser is available check ignition and burner flame picture visually.
xx
4 Isolate the device from the electrical mains supply, close the gas supply and service valves. x
5 Remove the burner module (as described in section 7.2.1). x
6 Clean primary heat exchanger. x
7 Check whether the burner is dirty. x
8 Refit burner module, replace burner door seal and nuts! (Spare part number 0020025929). x
9 Check all appliance electrical connections and make adjustments, if necessary. x x
10 Check/re-pressurise expansion vessel as necessary. x x
11 Check appliance generally, check for dust in the appliance and clean if necessary. x x
12 Check and clean condensate trap and flexible condensate hose. x x
13 Open the gas supply and switch on the device. x x
14
Perform a test operation of the appliance and heating system, including water heating and
bleed system, if necessary.
xx
15
Re-pressurise the appliance/system up to approx. 1.0 - 2.0 bar (depending on the static height
of the system).
xx
16
Measure the gas rate during operation and ensure it is inside the tolerances (see table 5.1
inside the chapter commissioning part I).
x
17
Re-check combustion by measuring CO and CO
2
values, compare to table 9.2. Ensure that the
measurement is inside the tolerances. In the case that no flue gas analyser is available check
ignition and burner flame picture visually.
x
18 Check boiler for any leaks. xx
19 Complete gas boiler commissioning checklist (Benchmark). x x
Table 7.1 Inspection and maintenance steps
7.1.4 Functional check of boiler operation
• Carry out a functional check of the boiler operation as
previously detailed.
• Remove the appliance casing as detailed and operate
the boiler.
• Inspect the burner operation through the viewing win-
dow.
• Check that the flames are evenly covering the surface
of the burner.
• Inspect for signs of excessive flame lift or sooting.
7 Inspection and maintenance