Installation and maintenance instructions for wall-mounted condensing gas boiler 600 - 11S/19S/24S/24C • 02/2006
5
Subject to modifications resulting from technical improvements!
Buderus • http://www.buderus-domestic.co.uk
Observe the relevant standards, regulations and legislation of
the country of final use.
Safe handling of substances
Care should be taken when handling the boiler's insulation,
which can cause irritation to the skin.
No asbestos, mercury or CFCs are included in any part of the
boiler and its manufacture.
CAUTION
Use this device for its intended purpose only.
DANGER!
Notes relating to the heating system water.
Thoroughly flush the system before it is filled
with water. Use only untreated water or water
treatment product such as Sentinel X100 to fill
and top up the system.
When using water treatment, only products
suitable for use with Buderus heat exchangers
are permitted (e.g. Sentinel X100). Your
warranty is at risk if an incorrect water
treatment product is used in conjunction with
this appliance. For more information, contact
Buderus Product Support Department.
It is most important that the correct
concentration of the water treatment product is
maintained in accordance with the
manufacturer's instructions.
If the boiler is used in an existing system any
unsuitable additives MUST be removed by
thorough cleaning.
BS.7593:1992
details the
steps necessary to clean a domestic central
heating system.
In hard water areas, treatment to prevent lime
scale may be necessary - however, 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 water softened in a salt bedding
exchanger.
Do not use inhibitors, anti-freeze or other
additives.
The expansion vessel must be of sufficient
size.
When oxygen-permeable pipes are used (e. g.
for floor heating systems) the system must be
separated by means of heat exchangers.
Unsuitable heating water promotes sludge
formation and corrosion. This may cause
malfunctions and damage in the heat
exchanger.
NOTE:
Notes relating to domestic hot water.
z
The domestic hot water service must be in
accordance with
BS 5546
and
BS 6700
.
z
The boilers are suitable for connection to
most types of washing machine and
dishwasher appliances.
z
When connecting to suitable showers,
ensure that:
a. The cold inlet to the boiler is fitted with
an approved anti-vacuum or syphon
non-return valve.
b. Hot and cold water supplies to the
shower are of equal pressure.
z
Where the water hardness exceeds
150 mg/litre, it is recommended that a
proprietary scale reducing device is fitted
into the boiler cold supply with the
requirements of the local water company.
CAUTION
Provision must be made to accommodate the
expansion of DHW contained within the
appliance, if a non-return valve is fitted to the
DHW inlet, as detailed in
BS. 67989: §5.4.3
.
