AquaBreak Series
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AquaTech-Pressmain Instruction Manual\AquaBreak
2.3
OPERATING INSTRUCTIONS
These pumpsets are used for increasing the supply pressure of cold potable water whilst also providing back
flow protection to fluid category 5.
The unit should only be operated by a competent person;
A competent person is someone who is technically
competent and familiar with safety practices and the hazards involved
.
2.3.1
ADDITIONAL WARNINGS
DO NOT TOUCH ANY LIVE PARTS FOR AT LEAST 5 MINUTES AFTER SWITCHING OFF THE POWER
READ GENERAL SAFETY INFORMATION 0.0, WARNINGS 0.1 and CAUTIONS 0.2, 0.3 & 0.4.
2.3.2
ADDITIONAL CAUTIONS
2.3.2.1
READ GENERAL SAFETY INFORMATION 0.0, WARNINGS 0.1 and CAUTIONS 0.2, 0.3 & 0.4.
2.3.2.2
Ensure the pump is primed before starting otherwise the pump seal will be damaged and cause a leak.
2.3.2.3
Seal faces are lubricated by the pumped liquid, as such new seals will leak slightly until “run‐in” there
after the leakage should be small enough to evaporate and remain un‐noticed.
2.3.3
NORMAL OPERATION
This pumpset increases and maintains the supply pressure to a preset 'Duty' pressure whilst also providing back
flow protection to fluid category 5.
The pumpset consists of a pump with built in pressure and flow switches, a mains water break tank with solenoid
filling valve and controls, all mounted in a steel enclosure together with associated discharge valve and external
mains water isolation valve & strainer. The pumpset can be wall or floor mounted.
2.3.3.1
For “normal” operation, all pumpset inlet and discharge valves should be left open, all hydraulic
accumulator/expansion vessel isolating valves should be left open, and drain cock/valves should be
left closed. Should it be necessary to have a situation that is not “normal” operation, then we would
strongly recommend attendance to site by our trained/authorised service personnel. Please contact
AquaTech‐Pressmain for more details.
2.3.3.2
Once installed and commissioned correctly, the pumpset automatically starts and stops the pump as
system outlets are opened and closed. The breaktank automatically fills as and when required.
2.3.3.3
Dry run protection.
The pump has automatic dry run protection built in should the mains water
breaktank run dry for any reason. Dependent upon the installed pump type, two scenarios can occur
following initiation of dry run protection. 1) The pump will stop and lock‐out, this requires manually
restarting by switching off the power supply for 10 seconds then switching back on again. 2) The pump
will automatically attempt to restart every 5 minutes for 3 attempts before shutting down and
requiring manually switching off, wait 10 seconds, switch on to reinitiate the start sequence.
If the pump continues to initiate the dry run protection then it may need to be primed again (see
commissioning 2.2), have a blocked strainer or no water is entering the break tank.
2.3.3.4
The tank level control relay (LR1) controls the operation of the solenoid valve. The LED indicator is OFF
when there is no power, slow flashing for ON with tank full, fast flashing for short timing period,
permanently lit for ON and filling tank.
