Oil Burner And Pump - Bosch Worcester Danesmoor Utility Regular ErP+ 12/18 Installation, Commissioning And Servicing Instruction Manual

Installation
Fire valve
Where required, check that the oil supply pipe has a fire valve fitted
externally to the building with the fire valve sensor located within the
appliance case.
A fire valve sensor clip [1] is provided for this purpose on the support
bar between the side panels.
2
1
Fig. 48 Fire valve clip
[1] Fire valve clip
[2] Fire valve label
The fire valve label [2] states that the fire valve should be rated at 85°C
or above to avoid nuisance cut outs.
5.7

Oil burner and pump

CAUTION: MAINS SUPPLIES
▶ Isolate the oil & water mains supply before starting
any work and observe all relevant safety precautions.
NOTICE: Nozzle orifice contamination
▶ to avoid contamination do not dismantle, clean or
touch the nozzle tip
Oil burner nozzle
Before removing or fitting a new nozzle refer to figure 49:
▶ Remove the screws [1] from the blast tube [2] and remove the blast
tube
There is a recirculation tube fitted to the 12/18 models,
this does not need to be removed from the blast tube
▶ Unplug the HT leads [4]
▶ Loosen the screw [3] securing the break plate[5] and slide the unit
off
▶ 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
not overtighten
▶ Refit the break plate ensuring that the photocell and the break plate
hole [5] are aligned and secure with the screw [3] into the seating
provided [7]
▶ Reconnect the HT leads [4]
▶ Refit the blast tube [2] and secure with the screws [1]
30
Fig. 49 Nozzle access
Refer to figure 50:
▶ Check that the nozzle [1] and the electrode [2] alignment settings
are correct.
▶ Ensure that the nozzle [1] is aligned centrally within the combustion
head [3].
6720820042-35.1Wo
▶ Inspect for any visible defects.
Fig. 50 Nozzle and electrode alignment
Burner head adjustment
The burner head adjustments are made to achieve the required output
from the burner. The adjustments are made via a thumb-wheel on the
burner. Refer to section 6.4.4 for setting information.
Oil pump - Single pipe connection
Connecting the oil pump for a single pipe system:
▶ The pump is factory set for single pipe operation with the flexible oil
pipe fitted.
▶ Check connections before use.
Greenstar Danesmoor Utility
1
2
5
3
8
7
6
4
6720821683-12.1Wo
2
3 ± 0.3mm
4 ± 0.5mm
1
6720821683-14.1Wo
2 - 2.5mm
ErP+ and Utility System ErP+ - 6 720 821 720 (2018/04)