Service Requirements; Sealed System Only; Clean The Burner; Oil Burner Nozzle - Bosch WORCESTER Greenstar Danesmoor 18/25 Installation, Commissioning And Servicing Instruction Manual
Floor standing oil-fired condensing boiler conventional flue & room sealed flue
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Service and Spares
7.3
Service requirements
See the following instructions for detail of some of the service
requirements listed below:
▶ Check and clean the burner.
▶ Replace the burner nozzle and flexible oil pipe/s.
▶ Check and clean the baffle retainers.
▶ Check and clean the baffles.
▶ Check that the flue damper is correctly fitted, if required.
▶ Check and clean the heat exchangers surfaces.
▶ Check the combustion chamber access door insulation board.
▶ Check that the flue system is unobstructed and clean as necessary.
▶ Clean or replace all oil filters.
▶ Check that the condensate system is not obstructed, clean and refill
the condensate trap.
7.4
Sealed system only
The PRV is a safety device and must be checked for correct operation.
The expansion vessel pressure must also be checked and adjusted if
required.
7.5
Clean the burner
▶ Remove the two hex head screws [1] and remove the air intake cover
[2] and clear any debris from the air intake and air damper.
▶ Remove the four screws [3] and remove the suction inlet [4] to gain
access to the fan.
▶ Clean both sides of the fan and suction inlet cover with a brush and
compressed air.
▶ Check the condition of the gaskets between these parts and replace
if necessary.
▶ Note the position of the air damper adjustment and check the air
damper moves freely.
▶ Check that the fan rotates freely.
▶ Reassemble the components.
4
Fig. 85 Fan access
48
7.6
Before removing or fitting a new nozzle refer to figure 86:
▶ Remove the screws [1] from the blast tube [2] and remove the blast
▶ Unplug the HT leads [4]
▶ Loosen the screw [3] securing the break plate [5] and slide the unit
▶ Use a suitable spanner to stop the nozzle body turning
▶ Remove the nozzle [8]and secure the new nozzle, hand tight
▶ Tighten the nozzle utilising the two spanners used during removal, do
▶ Refit the break plate ensuring that the photocell and the break plate
▶ Reconnect the HT leads [4]
▶ Refit the blast tube [2] and secure with the screws [1]
Fig. 86 Nozzle access
Refer to figure 51:
▶ Check that the nozzle [1] and the electrode [2] alignment settings
3
2
▶ Ensure that the nozzle [1] is aligned centrally within the combustion
▶ Inspect for any visible defects.
1
6720821683-13.1Wo
Fig. 87 Nozzle and electrode alignment
Greenstar Danesmoor Kitchen
Oil burner nozzle
tube
There is a recirculation tube fitted to the 12/18 models,
this does not need to be removed from the blast tube
off
not overtighten
[5] are aligned and secure with the screw [3] into the seating
provided [7]
2
3
7
4
are correct.
head [3].
2 - 2.5mm
ErP+
and Kitchen System
1
5
8
6
6720821683-12.1Wo
2
3 ± 0.3mm
4 ± 0.5mm
1
6720821683-14.1Wo
ErP+
-6 720 821 686 (2018/04)
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