31
ecoTEC exclusive installation and maintenance instructions / 0020017768_02
Inspection and maintenance 8
No.
Activity
Column 1
Inspection
must be
carried out
once a year
Column 2
Maintenance
1
Check the air/gas flue system and ensure it is not blocked, damaged and is fitted correctly.
x
2
Measure the gas rate during operation (see chapter ‚Start-up‘). If the gas rate
is lower than the minimum gas rate follow the maintenance instructions (column 2).
x
3
Check combustion by measuring CO and CO
2
values, compare to table 6.1. If the measurement
is outside the tolerances follow the maintenance instructions (column 2). If a flue gas analyser
is not available check the ignition and burner flame picture through the sight glass, if incomplete
combustion is evident perform the maintanance instructions (column 2).
x
4
Isolate the appliance from the electrical mains supply, close the gas and water service valves.
x
5
Visually inspect the general heat exchanger area for signs of corrosion, sooting or other forms
of damage. If damage is evident perform the tasks in the maintenance column 2.
x
6
Remove the burner module (as described in section 8.4) if maintenance schedule is required
from steps 2, 3 or 5 above. Clean the primary heat exchanger. Fit a new burner door seal kit
(spareparts no. 0020026401 - observe the assembly instructions enclosed with the seal kit).
Refit the burner module and tighten the nuts.
x
7
Check all the appliances electrical connections and make adjustments if necessary.
x
x
8
Check/re-pressurise the expansion vessel as necessary.
x
x
9
Check the appliance generally, check for dirt/dust and clean if necessary.
x
x
10
Check and clean the condense trap and flexible condensate hose.
x
x
11
Open the gas and water service valves, re-establish the electrical supply and turn on the boiler.
x
x
12
Perform a test operation of the appliance including the heating and hot water systems and
bleed the system if necessary.
x
x
13
Re-pressurise the appliance/system up to between 1.0 - 2.0 bar (depending on the static height
of the system).
x
x
14
Measure the gas rate during operation and ensure it is within the tolerances specified
(see chapter ‚Start-up‘).
x
15
Re-check the combustion by measuring the CO and CO
2
values, (compare to table 6.1).
Ensure that the measurement is within the tolerances. If a flue gas analyser is not available
check the ignition and burner flame picture visually through the sight glass.
x
16
Check the boiler for leaks of any kind, rectify as necessary.
x
x
17
Complete the gas commissioning checklist (Benchmark).
x
x
Table 8.1 Maintenance steps
