WarmFlow B-Series B70, Owner'S Manual

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Page 43
4.0 Oil Supply
. Oil Tank
Steel tanks constructed to BS799 : PART 5 should be painted on the outside only
and mounted on piers to prevent corrosion. Plastic oil tanks are also available and
can be suitable for installation at ground level. However, oil should never be stored in
translucent plastic containers.
The tank outlet should be at a height to provide sufficient clearance to allow for
proper maintenance of any isolation valve, oil filter or water separator fitted.
2. The pipe from the oil tank to the burner should be run in copper, steel or aluminium.
Galvanised pipe and fittings should not be used. The pipework should terminate
close to the boiler and be fitted with an isolating valve and filter. A remote sensing
fire valve must be fitted to the oil line preferably before the oil line enters the building
(BS540 : PART ).
Depending on the position of the tank a two pipe system may be required. One and
two pipe oil systems are shown below. As an alternative to a two pipe system a
Tigerloop or other approved de-aerator may be used.
4.1 One Pipe Gravity System
Head H(m)
ID 8mm
ID 10mm
0.5 1 1.5 2
0 20 40 60
20 40 80 00
Total Maximum Pipe Length (m)
Note
: Plastic oil level gauges may shrink when
exposed to kerosene thus allowing the ingress of
water. Pump failures due to water contamination
are not covered under the warranty.