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Worcester-Bosch Greenstar Danesmoor Utility Regular - Utility System Manual

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Pre-Installation
Greenstar Danesmoor Utility 2022+ and Utility System 2022+ - 6 721 846 263 (2022/01)12
4.3 Oil supply
•This appliance is suitable for Kerosene (Class C2) only, no other
fuel must be used.
• Plastic or steel tanks should be installed to BS 5410.
A steel tank should conform to BS 799: part 5 and have a slope of
1:24 away from the outlet with a sludge cock at the lower end.
•Do not use galvanised steel tanks or pipework for the oil system.
•Do not use soldered joints on the oil supply pipework.
4.3.1 Single pipe gravity feed system:
The oil storage tank [1] must be positioned so that the oil level does not
exceed 4 metres above the level of the burner oil pump [9] and in
addition the oil level must be at least 300mm above the oil pump [9].
Where the maximum oil level in the oil storage tank exceeds 4 metres, a
head breaking device must be installed between the tank [1] and the
burner oil pump [9].
Fig. 5 Single pipe feed
Maximum pipe run for single pipe gravity fed system
4.3.2 Double pipe sub-gravity feed system:
Maximum suction height 3.5 m. Non-return valves must be fitted to the
inlet and return oil line between the oil pump [9] and oil storage tank [1].
Fig. 6 Double pipe feed
Maximum pipe run for double pipe sub-gravity fed system
4.3.3 Single pipe suction lift with de-aerator:
Maximum suction height 3.5 metres. The oil tank [1] must be positioned
below the oil pump [9]. Create an inlet and return loop between the de-
aerator [12] and oil pump [9].
A non-return valve must be incorporated within the de-aerator or fitted
to the oil line between the oil storage tank [1] and the de-aerator [12].
A top feed oil tank fitted with a de-aerator using an internal non-return
valve should have any non-return valves fitted in the base of the tank to
the suction line removed to assist purging air from the oil line.
Fig. 7 De-aerator feed
Maximum pipe run for single pipe suction lift with de-aerator
NOTICE: Contaminated oil supplies can damage the
appliance.
Failure to ensure that the oil supply is clear of
contaminants may invalidate the appliance warranty.
▶ Ensure the oil supply is free of contaminates and
measures are taken to prevent contamination of the
appliance.
NOTICE: Liquid fuel supply pipes should be provided
with mains equipotential bonding in accordance with BS
7671.
Key to Oil supply illustrations, figures 5, 6 & 7
1 Oil storage tank
2 Full base (plastic tank)
3 Isolating valve
4 Oil strainer and water separator
5 Fire valve to BS 5410
6External wall
7 Oil filter (70μm max filtration size)
8 Fire valve sensor
9Oil pump
10 Oil burner
11 Non-return valve
12 De-aerator
13 Appliance isolation valve
14 Sleeve
Table 4 Key to oil supply feed system
All dimensions are in metres unless otherwise stated.
The maximum pipe run figures are based on using
copper pipe with an inside diameter of 2mm less than
the outside diameter.
6720813284-08.3Wo
1
23 4
300mm
Min.
4m Max.
6 8
53
109
13
714
14
Head (m) 10mmØ 12mmØ Head (m) 10mmØ 12mmØ
0.5 12 30 2.5 62 100
1.0 25 69 3.0 74 100
1.5 37 91 3.5 87 100
2.0 49 100 4.0 99 100
Head (m) 10mmØ 12mmØ Head (m) 10mmØ 12mmØ
050100 2.0 26 66
0.5 44 100 2.5 20 50
1.0 38 95 3.0 14 37
1.5 32 80 3.5 8 22
3.5m Max.
150mm
6720813284-09.2Wo
1
23 4
73
6 8
5
11
109
13
14
14
6720813284-10.2Wo
24
3.5m Max.
1 6
12
5
33 7
109
8
13
14
14
… 12 …


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