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Cont...
1.2
Frost protection:
The Electrastream unit must be located in a dry position, frost free
and protected from freezing, particularly when installed in a loft.
To comply with Building Regulations, all necessary pipework must be suitably lagged.
1.3
Connecting the water supply:
All pipework should be installed using good plumbing
practice. We recommend 22 mm mains cold water supply is used to avoid performance
loss.
1.4
Scale protection:
z
In areas of hard water, determined by the calcium content being 200 ppm
or greater, an effective water conditioner must be installed in the cold feed
to avoid damage and invalidation of the guarantee.
z
Suitable water conditioning devices include the Stuart Catalytic Water
conditioner model C3–22 (product code 46617). For installations requiring
flow rates in excess of 22 litres/min please contact Stuart Turner Ltd for
guidance.
z
Damage caused by scale will invalidate the guarantee.
Higher water temperatures of 65 °C and above can cause excessive scale.
The location and position of the water conditioner should be as per the manufacturer’s
recommendations.
1.5
Check water pressure & flow rates:
Stuart Turner recommends 1.5 bar pressure at 20
litres/minute flow rate as the minimum requirements for satisfactory operation. The
unit will still operate below this, but it may not be possible to run two or more outlets
at the same time.
1.6
Pipework to taps:
Ideally 22 mm pipe should supply the outlets throughout the
property with short lengths (max 1 metre) runs of 15 mm going to baths, showers, and
basin taps. Smaller bore pipe can be used to suit taps but may lead to loss of
performance.
1.7
Shut off valves:
Lever valves are supplied separately and must be fitted as close as
possible to the unit on the mains cold supply feed to the combination valve and to the
blending valve (see Fig. 3) feeding hot water services.
1.8
Drain valve:
A drain valve is incorporated onto the pipework to be used to drain the
cylinder, when required during commissioning or maintenance (Fig. 4) to allow for
maintenance work.
