Hydraulic Connections; Hydraulic Circuit Diagram - Riello RLS 160/M MX Installation, Use And Maintenance Instructions

5.11.3 Hydraulic connections

The pumps are equipped with a by-pass that connects return line
with suction line.
They are installed on the burner with the by-pass closed by screw
6)(Fig. 25).
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 plugs from suction and return connectors of the pump.
Insert the hose connections with the supplied seals into the
connections and screw them down.
During the installation, hoses must not be stressed with twisting.
Position hoses so that they cannot be stepped on or get into
contact with hot parts of the boiler and so that they allow burner
opening.
Connect, finally, the other end of the flexible hoses to the suction
and return lines using nipples supplied with the equipment.

5.11.4 Hydraulic circuit diagram

Key (Fig. 25)
1 Pump suction line
2 Filter
3 Pump
4 Pump pressure regulator
5 Return pipe
6 Bypass screw
7 Pump return line
8 Safety valve
9 1st stage valve
10 2nd stage valve
11 Filter
M Pressure gauge
V Vacuometer connection
Installation
D3006
23 GB
D3000
Fig. 24
Fig. 25
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