3
Commissioning
1. Commissioning should be carried out in conjunction with the main pressurisation set commissioning de-
tails. Fill the main system with water via the quick fill filling loop to the system fill pressure, this
filling loop must comply with local water authority bylaws and contain double check valves. The
filling loop must be completely removed after the system has been filled.
The pressurisation unit/Fill set must never be used to fill the system.
The maximum running time for pumps fitted to the Fill set must not exceed 4 hours in any 24
hour period.
2. Turn on the water supply feeding the Fill set break tank.
Water treatment crystals/chemicals must never be introduced to the system via the break tank.
3. Check that the pump has been fully evacuated of all air by removing the bleed screw from pump and
allow water to escape until no air is present. Replace bleed screw.
Operation
Switch the main power supply to the pressurisation system to the on position. Turn the switched spur situated
at the front of the Fill unit to the on position.
.
When the main pressurisation unit senses that the system is low on water it will give a 230v supply to the Fill
set and start the Fill set pump, this will pump water into the pressurisation set vessel which will be sitting at at-
mospheric pressure, when the main vessel senses that it now has the correct water content it will switch off
the supply to the Fill set pump. The Fill set will remain inactive until another signal is given from the main
pressure set to call for more water.
Flow regulating valve
The Fill set has a flow regulating valve which should be set to approximately 5l/m this is to ensure that the
break tank inlet water supply can keep up with demand. This can be adjusted to give a larger volume pro-
vided the main water supply can keep up.
Low level float switch
The low level float switch in the Fill unit will monitor the break tank water level and signal the main pressurisa-
tion to switch off the power to the Fill unit preventing the pump from running dry.
Maintenance
Routine check (3 monthly intervals)
1. Check that the pump seal is not leaking.
2. Check the pump is not seized and develops the correct pressure.
3. Check that the pump operates without undue noise or vibration.
4. Check that the motor runs without overheating.
Routine check (6 monthly intervals)
1. Check the break tank is clean and that the correct water level has been maintained.
2. Check that all screws are tight on electrical components.
3. Check that the earth connections are tight and making good contact.
