Xylem LOWARA e-SV Series - Guidelines for the hydraulic system

en – Translation of the Original Instructions
e-SV series – Additional Installation, Operation and Maintenance Instructions 23
4.4.1 Guidelines for the hydraulic system
Refer to the representative hydraulic diagrams; see the figures below.
Figure 1: Positive suction head installation
Figure 2: Suction lift installation
Position
number
Description
Position
number
Description
1
Pump unit
8
Electrode probes or float
2
Anti-vibration joint
9
Automatic relief valve
3
Overpressure safety on-off valve
10
Foot check valve with filter
4
On-off valve
11
Electric panel
5
Pressure gauge
12
Pressurised circuit
6
Minimum pressure switch
13
Filling on-off valve
7
Check valve
1. Do not install the unit at the lowest point of the system, to avoid the accumulation of
sediments.
2. Install an automatic relief valve at the highest point of the system to eliminate air bubbles.
3. Remove any welding residues, deposits and impurities in the pipes that could damage the
unit; install a filter if necessary.
4. Support the pipes independently to prevent them from weighing on the unit.
EHM_M0016_A_sc
11
5
5
6
8
74 2 2 4
4
4
9
3
Q
1
12
EHM_M0017_A_sc
7
11
5
4
4 2 2
5
4
8
10
3
Q
4
9
1
13