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HM Pump Set
List of main components
Item Component
1
Electric panel
2
Pump suction isolation valve
3
Pump discharge isolation valve
4
Vessel isolation valve & drain
5
Discharge manifold
6
Suction manifold
7
Non return valve
8
Pump
9
Hydrovar inverter
10
Vessel 24lt
11
Flexible Connector
See specific pump O&Ms for more in
depth pump detail
Note:
The use of spare parts not supplied by
Lowara will invalidate the guarantee.
Maintenance
Routine check (6 monthly intervals)
1.
Check all pumps produces the correct pressure.
2.
Check that the pump operates without undue noise or vibration.
3.
Check the break tank is clean and that the correct water level has been maintained.
4.
Check that all screws are tight on electrical components.
5.
Check that the earth connections are tight and making good contact.
6.
Check that the gas pre charge is at the correct pressure, this should be done by isolating
the vessel from the system and draining water out of the vessel via the isolation valve drain point.
Once the water has been discharged, a tyre gauge can be connected to the pre charge valve to display the vessel
pre charge pressure. Recharge as necessary with Nitrogen or dry air.
Any other expansion vessels connected to the system can be checked in the same manner.
Clean any filters that may be connected to suction/discharge lines and ensure the mesh is in good condition.
Yearly intervals
Drain the break tank and using clean water only, clean all internal surfaces using non-metallic equipment and
tools. Remove any debris found in the tank. Check and clean filters in overflow/warning pipe (If accessible)
Refill the tank with clean fresh water, disinfect and leave to stand for 60 minutes. Test water for correct PPM
levels.
7
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