6
6. Installation Instructions
All AccuBoost models are designed to be connected directly to the cold mains water supply
within the property. Pumped models should ideally be connected directly after the stopcock.
Unpumped AccuBoost units can be located within the building, loft areas, outbuildings,
garages or basements - but the location must be dry and frost free. When locating AccuBoost
the following points should be considered:-
Access & maintenance:
- For maintenance purposes and emergency situations, the AccuBoost unit (and pump if
applicable) and any isolation valves must be easily accessible.
- A clearance of 100mm above the pressure vessel is advised to allow access to the valve
for air precharge pressure checking and adjustment.
- It is advised to fit a water maintenance bypass when installing an AccuBoost unit. This
allows the property to have a water supply available whilst any maintenance is carried out.
See Figures 1-4 on pages 4 & 5 for further details.
6.1 Location
Pipework:
- AccuBoost pumped units should ideally be installed directly after the mains stopcock. Any
outlets before the AccuBoost pumped unit will not benefit from the AccuBoost unit.
- The length of pipework from the incoming main to the AccuBoost unit should be kept as
short as possible. Longer pipe runs may impact on the performance of the unit.
- The isolating valves on the supplied anti-vibration hoses should be accessible once the
unit is installed.
- All pipework must have adequate insulation to protect against frost and freezing.
- On pumped versions the flow direction is clearly marked on the brass end of the pump.
Please refer to Figure 6 on page 9.
Safety:
- During normal operation the casing of the pump can become very hot and may take some
time to cool down. Measures should be taken to ensure it cannot be touched.
- The pump should never be covered so as to stop airflow for ventilation.
- Care should be taken to ensure nothing can fall on or puncture the pressure vessel and
pump.
- The AccuBoost unit is stable in normal operation, however should there be a risk of the unit
being pulled over, additional retaining methods such as a retaining strap should be
installed (not supplied).
- The AccuBoost unit must be installed in a dry location.
- In the unlikely event of a water leak, the AccuBoost unit should be positioned so that water
can be contained or directed away from any electrics or other sensitive areas.
- A pressure reducing valve should be fitted on the installation to ensure that the pressure
does not exceed the safe working limit of the AccuBoost system (8.6 Bar/860 kPa) and to
provide optimised performance.