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0006081053 - ed 2006/12
AUXILIARY PUMP
In some cases (excessive distance
or difference in level) it is necessary
to install a “loop-type” supply system
with an auxiliary pump, which
dispenses with the connection of the
burner pump directly to the tank.
In this case the auxiliary pump can
be put into operation when the
burner is started up and cut-off when
the latter stops.
The electric wiring of the auxiliary
pump is made by connecting the
coil (230 V) which controls the pump
remote control switch to terminals
“N” (equipment terminal board) and
“L1” (downstream the motor remote
control switch).
It is important to comply strictly with
the previsions set forth here below:
- The auxiliary pump should be
installed as near as possible to
the fuel to be sucked.
- Its head should meet the
requirements of subject
system.
- We recommend a delivery rate
equal to at least that of the
burner pump.
- Connection pipes should be
HYDRAULIC DIAGRAM
LEGEND
1 - Foot valve
2 - Eventual air regulation motor
3 - 2
nd
fl ame nozzle
4 - 1
st
fl ame nozzle
5 - Safety valve normally closed
6 - 12 bar pump
7 - Valve normally closed
8 - Air gate control hydraulic jack
Note Pressure loss: TBL 85P = 1 bar
TBL 105P = 1,5 bar
TBL 130P = 1,5 bar
TBL 160P = 2 bar
sized to cope with the delivery
rate of the auxiliary pump.
- Always avoid to electrically
connect the auxiliary pump
directly to the remote control
switch of the burner motor.
