Buderus 500-24C Installation And Maintenance Instructions Manual page 4

Regulations and directives
Warning: In hard water areas, treatment to
prevent lime scale may be necessary - how-
ever, the use of artificially softened water is
NOT permitted.
Under no circumstances should the boiler be
fired before the system has been thoroughly
flushed.
Do not use artificially softened water.
When using plastic pipes, then they must
contain a polymeric barrier.
It is allowed to use copper for the first 600
mm. See also subsection 1.8: "Pipe connec-
tions" in this manual.
Notes related to domestic hot water.
V The domestic hot water service must be in
accordance with BS 5546 and BS 6700.
V The boilers are suitable for connection to
most types of washing machine and dish-
washer appliances.
V When connecting to suitable showers, en-
sure that:
a.The shower is capable of accepting
mains pressures and temperatures
up to 65 °C.
b.The shower is ideally thermostatic or
pressure balancing.
V Where temporary hardness exceeds
150 mg/litre, it is recommended that a
proprietary scale reducing device is fitted
into the boiler cold supply with the require-
ments of the local water company.
Caution
Provision must be made to accommodate
the expansion of DHW contained within the
appliance, where a back flow prevention de-
vice is fitted BS. 67989: §5.4.3.
Safe handling of substances
No asbestos, mercury or CFCs are included in any part of
the boiler and its manufacture.
4 Buderus 500-24C/28C - Subject to modifications resulting from technical improvements