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4:8.4 Two Pipe System
Fig. 4:8d
When the bottom of the Oil Tank is below the level of the Oil Pump on the Burner it is necessary to install an
additional 10mm return pipe.
The Oil Filter, Shut Off Valve, spring loaded Non-Return Valve and Fire Check Valve are always in the suction
line supplying oil from the Tank to the Burner.
The Non-Return Valve must be fitted to allow the
BOULTER BUDERUS CAMRAY 5 PAGE 12
flow in the correct direction and prevent drain back to the Tank, see
fig.
4:8e.
Ensure that Valves are NOT fitted in the Return Line. The Return Line must be unobstructed at all
times.
Ensure that the Burner Oil Pump is correctly set for 'two Pipe' operation. (See 4:9.1)
4:8.5 Deaerator Oil Pipe System
Fig. 4:8f
An alternative two pipe arrangement can be achieved using a 3K-Oil Loop Deaerator which removes the air
from the oil feed on a single pipe lift. The Burner Pump is piped to the Deaerator, which should be positioned
close to the burner, but NOT inside the Boiler Case. A Non-Return Valve is not required in the return line.
The advantage of this system is gained where a two pipe run from the oil supply tank is long or difficult to
achieve.
Boulter 3K Deaerators are available as an optional extra from your merchant (Part No. BS 03060).
4:8.6 Water Separator Oil Filter
For changeover applications, the use of a Water Separator Oil Filter, available from BOULTER BUDERUS is
recommended (BS03052).
4:8.7 Flexible Oil Pipes
Camray 5 Boilers and 3K Deaerator Fitting Kits are supplied with long life Flexible Oil Pipes.
The Flexible Oil Pipes are fitted inside the Boiler casing and are of adequate length to enable the Burner to be
removed without disconnecting. When fitted correctly the pipes should be curved round the Burner as shown
in Fig.4:8a.
file://D:\PL47000\PL47000.htm
14/04/2005
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