Advance Appliances ECB 210 Руководство по установке и эксплуатации - Страница 6

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INSTALLATION

The unit must be installed to meet current best practice by a person
competent to do so.
Incoming mains of 22mm with a pressure of 2 bar or above is recommended
for best performance. Lesser pressures/pipe diameters will compromise
performance; this must be taken into account as the decision rests with the
installer/householder.Test the household supply by turning on a mains fed tap
to ensure satisfactory flow rate can be achieved.
Incoming pressures of more than 3 bar must be controlled at 3 bar by a pressure
reducing valve (Not supplied).
Recommended flow rate from 18 to 20 litres per minute. Excessive flow rates
may result in lower hot water temperatures.
In hard water areas where concentrations exceed 200ppm a suitable scale
reducer must be installed. The choice is left to the installer to suit local
conditions. Chlorine levels must be below 200ppm.
The overflow must be connected and it must be in line with current practice.
A metal overflow should be fitted. Push fit or solvent weld are not
recommended. Discharge must be to a safe and open, visible point outside of
the property.We also recommend that the ball valve is isolated after filling.
Inhibitor must be added via the top of the store to manufacturers'
recommended dosage.
A 22mm pipe set incorporating service valve, shock arrestor and blending
valve is fitted to the unit. This is needed to control the temperature at
the hot water outlets and prevent water hammer. The shock arrestor
should be checked annually and maintained at 3 bar pressure. The
blending valve calibration should also be checked annually to ensure water is at
an appropriate temperature.
The cold mains and domestic hot water are connected directly to this pipe work.
SERVICING
This should be done every year. Fill in the form at the back of this publication -
you may need it in case of warranty issues. Keep proof of servicing (receipts etc).
Service the expansion vessel by inflating to 3 bar, check condition of ball and
float valve and ensure store is inhibited with a proprietary brand of inhibitor.
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