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Further details regarding the individual steps
According to the [German] Health & Safety at Work Act, steam boilers with a
safety pressure in excess of 0.5 bar must be monitored. In accordance with
the conformity assessment diagram no. 5 of the EU Pressure Equipment
Directive, these boilers must be categorised as class III. Prior to
commissioning, this system must be tested by an authorised body (e. g. TÜV).
System start−up
Observe the information
provided by the suppliers of
burner and accessories.
1. Check that turbulators are fully
pushed into hot gas flues
(against their end stop)
(open boiler door).
2. Check that the boiler room
ventilation is unobstructed.
3. Check the function of the water
treatment system.
4. Fill the steam boiler with water
higher than the NW indicator.
Note
Only operate steam boilers with
suitable water; see also water
quality requirements on page 26.
5. Check all fitted components, such
as pipework, valves, regulators,
pumps etc. for function and
leaks.
6. Check the fuel oil level or the gas
supply pressure.
7. Open the flue gas damper (where
appropriate).
8. Check whether cleaning aperture
on the flue outlet is closed.
9. Open the shut−off valves in oil
supply pipes (at the oil tank and
filter) or open the gas shut−off
valve, whichever is applicable.
10. Switch ON the mains electrical
isolator, the switch for the feed
water pump and the burner
ON/OFF switch, in that order.
Burner manufacturer's
operating instructions
Initial start−up, inspection and maintenance
11. Start the boiler with a low output
(burner stage 1 or partial load)
and slowly ramp up to the
required operating pressure.
12. Slowly open the steam valve
after the required operating
pressure has been reached.
13. Only enable the full burner load
at that point.
14. While the system heats up, check
the correct function of all control
and safety equipment.
15. Observe the pressure and
temperature test equipment.
16. Check the fittings for leaks and
tighten, if necessary.
17. Check the boiler door and
clean−out cover after approx.
50 hours and retighten all
screws.
Note
We would recommend that you
operate the boiler constantly at the
required operating pressure.
The boiler may still be operated at
pressure, even if no heat demand
occurs for a longer period of time.
In systems comprising several
boilers, of which one is constantly
used as standby boiler, only change
the operation over in longer
intervals, e.g. during the annual
inspection of the total system.
(cont.)
7
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