RAYBURN
COOKERS
INSTALLATION
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OIL STORAGE AND SUPPLY
There are a number of strict requirements for the storage of fuel, such as the siting of the tank and the provision of fire-valves etc.
Part J of the Building Regulations (England & Wales) 2002 in particular require protection from risks of Pollution or Fire and request that a ‘Risk assessment’ be made and recorded.
Type of storage tank. For a Rayburn these may be of plastic or steel construction, but must be approved to the relevant OFTEC standard.
Size. Typically, 1400 litres (300 gallons) should be considered as the minimum for most models.
Position. Detailed instructions are given in British Standards BS 5410:part 1: 1997, but the following general points should be noted, assuming a typical domestic installation.
Preferred location:
If close to property:
If close to boundary wall or fence
Height. This is most important. Oil-fired Rayburn's fall into two groups:-
1. Those Rayburns which must have the oil supplied by gravity and which therefore require the tank to be raised higher than the cooker are models 200, 208, 300, 308, 368K, 880, 8120, 8150
Height limitations for gravity feed supply to these models
If the tank cannot be positioned high enough to satisfy this requirement, then a proprietary oil-lifter could be used, but this will then be dependent on an electrical supply for the Rayburn to operate.
If the tank is too high, then a pressure reducing valve must be fitted.
2. Rayburn Models XT, 360, 400, 410, 440, 460, 480, 499 can accept the tank at a lower position, say at ground level; or even below the level of the cooker, which in the latter case will utilize a twin oil pipe system or proprietary de-aeration device (Tiger loop).
Tank Fittings must include a service valve, filter/strainer, contents gauge and filling point.
Bunded Tanks will be required if the tank is within 10 metres of a sewer, stream etc, where pollution could occur if there was a spillage, or if it is located internally, e.g. in a barn or outhouse. Traditionally a bund took the form of a masonry catch-pit, but many modern plastic tanks have their own integral bund as a second skin.
Oil Supply Pipe. This should be run via the most direct route, having regard for protection from accidental damage, particularly where buried. Normally, 10mm diameter, plastic coated, copper tube will be used. Fittings must be compression type, not soldered. The oil supply to the Rayburn should not be shared with another oil appliance. It is now recommended that oil supply pipes should be electrically earth bonded.
Fire-valves. These are an essential safety requirement and should be of the remote acting type, not the fusible head variety, although the latter could be used additionally as a service valve adjacent to the Rayburn. Two fire-valves will normally be required with vaporising burner models, as shown below, rated to operate at about 66 degree C.One should be located externally at the point where the oil pipe enters the property, with its sensor in the room, to give isolation of the fuel in the event of a property fire. The second fire-valve is positioned adjacent to the Rayburn oil control valve, with its sensor inside the burner housing, so as to isolate the fuel in the event of an appliance malfunction.
Pressure jet burner models will normally only require a single fire-valve. Where a twin oil pipe system is used, then the fire-valve should be fitted to the 'flow' pipe, not the return. If the oil supply route travels through more than one room, then multiple fire-valves may be required.
Oil filter. An element type filter should be fitted adjacent to the Rayburn.
Service Valve. A valve should be fitted immediately before the oil filter, to permit servicing.
Further information on oil storage and supply is available from the OFTEC web site at www.OFTEC.org.uk
The above information is for guidance only. Please refer to the relevant Regulations, Codes of Practice and product installation instructions.