Installation and maintenance instructions ecoTEC plus 0020031552_03
40
7.1.3
Overview of inspection and maintenance tasks
No. Step
Column 1
An inspection
must be perfor-
med once a year.
Column 2
Maintenance
1
Check flue system and make sure that it is not blocked, not damaged and fixed correctly.
x
2
Measure the gas rate in operation (see Table 5.1 in Section Commissioning, Part l). If the gas
rate is less than the minimum value, carry out maintenance work (Column 2).
x
3
Check combustion by measuring the CO and CO
2
values, compare with values in Table 9.2.
Carry out the maintenance if the measured values are outside the tolerances (Column 2). If
flue gas analyser is not available, check the ignition process and the flame picture on the bur-
ner through the sight glass; if incomplete combustion is evident carry out maintenance (Co-
lumn 2)
x
4
Isolate the unit from the electrical mains, close the gas and the water service valves.
x
5
Inspect the entire primary heat exchanger area for visible signs of corrosion, sooting up or
other damage. If damage is detected, carry out maintenance work (Column 2).
x
6
Remove compact thermo-module (as described in Section 7.2.1), if maintenance is required as
a result of steps 2, 3 or 5. Clean the primary heat exchanger. Fit seal kit for burner door (ob-
serve the fitting instructions included with the seal kit). Re-fit the compact thermo-module
and tighten the nuts.
x
7
Check whether the electrical plug connections and other connections are fitted tightly and
make adjustments, if necessary.
x
x
8
Check expansion vessel of the combi boiler. If required, correct the pressure.
x
x
9
Check combi boiler in general, check combi boiler for dirt/dust and clean if required.
x
x
10
Check and clean the condensate trap and discharge pipes.
x
x
11
Open gas inlet and stop valves, connect unit to the electrical mains and switch on.
x
x
12
Test the unit and the heating system including the hot water operation. Bleed if required.
x
x
13
Check the expansion vessel of the shift load storage tank. If required, correct the pressure.
x
x
14
Fill the pressure in the combi boiler or in the heating system to approx. 1.0 - 2.0 bar (depen-
dent upon the static height of the plant).
x
x
15
Measure the gas rate during operation and check that it is within tolerances (see Table 5.1 in
Section Commissioning, Part I).
x
16
Check combustion by measuring the CO and CO
2
values, compare with values in Table 9.2. The
measured values must be in tolerance. If there is no combustion analyser is available, check
the ignition process and the flame picture on the burner visually through the sight glass;
x
17
Check the boiler for any leaks and seal if necessary.
x
x
18
Fill out gas commissioning checklist (Benchmark).
x
x
Table 7.1 Inspection and maintenance steps
7 Inspection and maintenance
Summary of Contents for ecoTEC plus 937
Page 60: ......
Page 61: ......
Page 62: ......
Page 63: ......
Page 64: ...0020031552_03 GB 052008...