Mains Supply; Electrical Supply; Oil Supply; Single Pipe Gravity Feed System - Bosch Worcester Greenstar Danesmoor External Regular ErP+ 12/18 Installation, Commissioning And Servicing Instruction Manual

4.2

Mains supply

4.2.1

Electrical supply

• Supply: 230V - 50 Hz
• Cable: PVC insulated 0.75 mm2 (24 x 0.2mm) temperature rated to
90°C.
• Circuit breaker incorporating earth leakage protection.
• External 5A fuse to BS1362.
• The appliance must be earthed.
• This appliance must not be connected to a three phase supply.
• Wiring must comply with the latest IET wiring regulations.
• It must be possible to isolate the appliance from the electrical supply
with at least a 3mm contact separation in both poles supplying the
appliance.
• Wiring between the appliance and the electrical supply must comply
with IET wiring regulations and any local regulations that may apply
for fixed wiring to a stationary appliance.
• Any system connected to the boiler must not have a separate
electrical supply.
4.3

Oil supply

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.
• This appliance is suitable for Kerosene (Class C2) only, no other
fuel must be used.
• Plastic or steel tanks must 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.
Key to Oil supply illustrations, figures 4, 5 & 6
1 OIl storage tank
2 Full base (plastic tank)
3 Isolating valve
4 Oil strainer and water separator
5 Fire valve to BS 5410
6 External boiler casing
7 Oil filter (70μm max filtration size)
8 Fire valve sensor
9 Oil pump
10 Oil burner
11 Non-return valve
12 De-aerator
13 Appliance isolation valves
Table 5 Key to oil supply feed system
Greenstar Danesmoor External ErP+ and External System
4.3.1
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. 4
Maximum pipe run for single pipe gravity fed system
Head (m) 10mmØ 12mmØ
0.5
1.0
1.5
2.0
4.3.2
Maximum suction height 3.5 metres. Non-return valves must be fitted to
the inlet and return oil line between the oil pump [9] and oil storage tank
[1].
2
Fig. 5
Maximum pipe run for double pipe sub-gravity fed system
Head (m) 10mmØ 12mmØ
0
0.5
1.0
1.5
ErP+ 6720821725 (2018/04)

Single pipe gravity feed system:

1
2 3 4 3 7
Single pipe feed
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.
12 30
25 69
37 91
49 100

Double pipe sub-gravity feed system:

1
5
11
3
150mm
3 4
Double pipe feed
50 100
44 100
38 95
32 80
Pre-Installation
6 8
1m Min.
9 10
5 13
6720809437-41.2Wo
Head (m) 10mmØ 12mmØ
2.5 62 100
3.0 74 100
3.5 87 100
4.0 99 100
6 8
9 10
1m Min.
7 13
6720809437-42.2Wo
Head (m) 10mmØ 12mmØ
2.0 26 66
2.5 20 50
3.0 14 37
3.5 8 22
11