Trianco Contractor WM70 HE INTERNAL, Инструкция по эксплуатации, установке, пусконаладке и обслуживанию, Страница: 12 / 36

12
5. OIL SUPPLY
OIL
The burner is factory-set to burn 28 sec. Kerosene Class C2 to
BS 2869.
Trianco makes no guarantee as to the satisfactory operation of
the boiler using fuels other than that which is stated above.
STORAGE TANK
The tank should be fitted with weather-protected fill and vent
connections, a drain-off cock, and an oil level indicator.
Size and Location of Tank
The tank should be large enough to allow for economic
deliveries and be located in an unobtrusive position, having
regard to the need for safety, filling, maintenance, and head of
oil required (see
figs 13, 14, 15 ).
Steel Tanks
Steel tanks must comply with the requirements of BS 799 Part
5: 1987 and should be mounted on brick or block piers, with a
waterproof membrane fitted between the piers and tank.
Plastic Tanks
Polyethylene tanks may be used, having several advantages
over traditional steel tanks:
(a) Pier supports are not required; the tank may be fitted
directly onto a flat surface.
(b) They do not corrode; therefore never require repainting.
(c) They are easier to handle because of lower weight.
(d) They are generally supplied with a 10-year manufacturer’s
guarantee.
Fire Protection
Whilst it is highly unlikely that a fire could start from a domestic
oil tank, protection is required from a fire which may originate
elsewhere. The tank should be at least 1.8 metres from a
building and 750mm from a site boundary. Where it is not
feasible to adhere to these limits, the building wall must not
have any openings other than those for ventilation, the wall
must have at least a half-hour resistance to fire, and must
extend 1.8 metres from any part of the tank.
Alternatively, a non-combustible radiation barrier can be
employed, which meets all the requirements of BS 5410 Part 1.
This standard applies to tanks up to a capacity of 3,500 litres.
See current OFTEC regulations for further details.
To comply with Building Regulations, section J5:
1. Where the tank is close to a dwelling, fire protection must
be provided to the eaves, if less than 1.8 metres from the
top of the tank.
2. Cladding must extend at least 300mm beyond the tank.
3. The tank must be fitted on a non-combustible base.
Pollution Protection
To comply with Building Regulations, section J6 , the tank
must be bunded (double-walled) if:
1. The tank is less than 10m from a stream
2. The tank is less than 50m from a well, spring, or other
source of drinking water.
3. The tank cannot be viewed from the point of delivery.
4. There is risk of oil reaching a manhole cover or drain in
the event of a leak.
5. The tank capacity exceeds 2,500 litres.
SUPPLY
A long-life flexible oil hose is supplied with the boiler. A filter
and shut-off valve are also required. These should be fitted as
shown on
figs 13, 14, 15 .
All oil line joints must be completely sealed and the total pipe
run should be flushed thoroughly before connection is made to
the burner. No soldered joints are permitted in the oil line.
Fire Valve
A remote-operated fire valve must be fitted in the oil supply
line, externally to the boiler, with the sensing phial located at a
point within the boiler casings, above the burner.
Single-Pipe Oil Supply (fig 14)
Where the lowermost part of the tank is above the level of the
burner, a single-pipe gravity system can be used. The oil
supply pipe should be connected to the suction port on the
burner pump via the flexible hose supplied.
When using the single-pipe system, it is important to convert
the fuel pump on the burner to operate as such: remove the
end cover and filter, then remove the bottom screw and insert
a ‘U’-shaped washer. Replace the screw, making sure it is fully
inserted. See the burner details leaflet for further information.
Two-Pipe Oil Supply (fig 15)
Where the lowermost part of the tank is below the level of the
burner, a two-pipe suction lift is necessary.
A spring-loaded non-return valve must be fitted in the suction
line to prevent the oil running back to the tank. No valves are
permitted in the return line. An additional flexible oil line will
also be required.
The oil pump is factory-set for use with a two-pipe system.
To comply with OFTEC regulations, a CD/10 form must
be completed and left with the appliance upon
installation.