20166443
20
Installation
6.12.1 Hydraulic connections
The pumps are equipped with a by-pass that connects return line
with suction line. The pumps are installed on the burner with the
by-pass closed by screw 6)(Fig. 22).
It is therefore necessary to connect both hoses to the pump.
The pump will break down immediately if it is run with the return
line closed and the by-pass screw inserted.
Remove the plugs from the suction and return connections of the
pump.
Insert the hose connections with the supplied seals into the con-
nections and screw them down.
Take care that the hoses are not stretched or twisted during in-
stallation.
Install the hoses where they cannot be stepped on or come into
contact with hot surfaces of the boiler.
Now connect the other end of the hoses to the suction and return
lines by using the supplied nipples.
6.12.2 Scheme of hydraulic circuit
1 Pump suction line
2 Filter
3Pump
4 Pressure adjuster
5 Pressure test point
6 Bypass screw
7 Pump return line
8 Safety valve
9 Operation valve
10 Delivery pipeline
11 Nozzle
12 Return pipeline
13 Pressure adjuster
14 Eccentric for pressure adjuster
15 Maximum oil pressure switch
16 Return valve
17 Return valve
M Pressure gauge
V vacuometer
Make sure that the hoses to the pump supply
and return line are installed correctly.
During the installation, hoses must not be
stressed with twisting.
To Next Page
Loading...
