AquaBreak Series
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AquaTech-Pressmain Instruction Manual\AquaBreak
0.2.7
If the equipment were to be stored or taken out of service for a period of time (e.g. 1 week or more),
then we would recommend draining the equipment of all water/liquid (with due regard to any local
regulations) to prevent frost damage to components. When restarting is required we would
recommend commissioning by our authorised service agent.
0.2.8
Ensure the base/foundation/plinth/wall to which the equipment is to be attached has sufficient mass
compared to the equipment, in order to avoid noise/vibration transmission. E.g. the mass of the base
should be at least five times the mass of the equipment.
0.2.9
Ensure the electrical supply is the correct voltage, current, frequency and type for the equipment
supplied and that suitable circuit protection equipment is installed in the supply. Incorrect electrical
installation could be an electric shock/burns/fire hazard.
0.2.10
When accessing the control panel to make electrical connections adopt anti‐static procedures e.g.
wear anti‐static earthed wristband, to avoid risk of damaging the controller.
0.2.11
All products that are packaged to include Pressure vessel(s)/Hydraulic Accumulator(s)/Expansion
Vessel(s) are classed as “Assemblies” under the Pressure Equipment Directive (PED). Where units are
despatched with “Loose” vessel(s) for assembly on site it is absolutely essential that they be installed
as detailed in the instructions using the fittings provided where appropriate. Failure to observe this
will nullify compliance with the PED and may present a safety hazard. Your warranty may also be
affected.
0.2.12
Where Hydraulic Accumulator(s)/Expansion Vessel(s) are supplied as a loose item, they must be
installed/connected correctly before operating the equipment, otherwise serious damage from over‐
pressure/pump overheating could occur.
0.2.13
Do not operate this equipment/pumpset prior to commissioning (section 2.2) This could cause
irreparable damage to equipment/pumpset/pipework/system components.
0.2.14
Isolate the equipment/pumpset before pressure testing system. Excess pressure could irreparably
damage the pressure transducer, pressure switches (where fitted) and the diaphragms of pressure
vessel/hydraulic accumulators.
0.2.15
It is the installers’ responsibility to ensure subsequent pipework etc can accept the pressures
generated by the equipment/pumpset and to install an overpressure safety device into the system
with due respect to the suction pressure present on the pumpset, the pump closed valve pressure
stated on the pump, the maximum working pressure stated on any of the attached pressure vessels
and any other device connected to the system e.g. boilers, calorifiers etc.
0.2.16
When chlorination of the system is carried out,
ensure that any residual chlorine is removed by
thorough flushing as detailed in the HSE approved code of practice L8, to avoid damaging the
equipment/pumpset. The normal level of chlorination is up to 2 parts per million (ppm), but shock
dosing for sterilization purposes, at 25‐50 ppm for 24‐48 hours is acceptable as long as all chlorine is
removed once the process is complete. Chlorination beyond these limits could seriously damage
pumpset components and WILL NOT be covered by the warranty.
0.2.17
The installer/user is responsible for the installation of the correct earthing and protection according to
valid national and local standards. All operations must be carried out by a suitably qualified person.
0.2.18
The equipment is only suitable for earth referenced supplies and must be permanently earthed to
avoid electric shock hazard.
0.2.19
The equipment must be permanently earthed with appropriate sized Earthing.
0.2.20
We recommend the use of a 30mA RCD to provide electrical safety.
0.2.21
Never perform high voltage resistance tests on control panels, variable speed drives/motors without
first disconnecting the panel/drive/motor from the circuit being tested as this will damage the built in
electronic components.
0.2.22
Metal parts (e.g. heat sinks) may reach temperatures of 90 degrees centigrade.
0.2.23
Where “Expansion vessels” are used on Domestic hot water systems (DHWS) or LTHW heating system
pressurisation units, the temperature of the fluid returning to the vessels should not exceed 70
degrees Centigrade as this could damage the vessel diaphragm. Where the temperature exceeds 70C
an intermediate cooling vessel should be fitted.
0.2.24
Where “Expansion vessels” are used on Domestic hot water systems (DHWS) or LTHW heating system
pressurisation units, the glycol content in the water must not exceed 50%.
0.2.25
Drain cocks/valves and air bleed screws must not be left open as this could cause flooding.
