5.4.6 Two pipe oil supplies
See Fig. 9
1 The fuel pump is supplied for use with a single pipe fuel
supply system. For use on a two pipe system, it is necessary
to fit the By-pass screw (see Fig. 9) into the tapping in the
return port.
2 The By-pass screw is supplied in the boiler accessory pack.
3 Remove the plastic burner cover (two screws).
4 Remove and discard the blanking plug from the return
connection of the pump and fit the By-pass screw using an
hexagonal key.
5 Connect the return oil flexible fuel line to the pump.
6 Connect the 3/8" to 1/4" BSP adaptor to the flexible fuel
line.
7 Flexible fuel lines and adaptors are available to purchase
from your local stockist.
8 The burner cover may be left off until the boiler is
commissioned.
Fig. 8 - Tiger loop
Fig. 9 - RDB pump
1 Oil inlet connection
5
Pressure adjuster
2 Return connection
6
Vacuum gauge connection
3 By-pass screw
7
Solenoid
4 Pressure gauge connection
8
Supply to nozzle
18
Outdoor Combi 90 V3, Combi Max and Condensing Combi
5 - GENERAL BOILER INFORMATION