Guide To System Requirements; Water Circulation System; Filling And Preparing Heating System - Vaillant ecoTEC SERIES Instructions For Installation And Servicing
Wall hung room sealed fan assisted condensing boiler
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Also See for ecoTEC SERIES:
- Installation manual (68 pages) ,
- Operating manual (20 pages) ,
- Instructions for use manual (17 pages)
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3.10 Guide to system requirements
3.10.1
Water circulation system
Detailed recommendations for the water circulation
system are given in BS 6798 and BS 5449: Part 1 (for
small bore and micro bore central heating systems).
Pipework not forming part of the useful heating surface
should be insulated to help prevent heat loss and
possible freezing, particularly where pipes are run
through roof spaces and ventilated underfloor spaces.
Draining taps must be located in accessible positions
which permit the draining of the whole system including
the boiler and the hot water system. Draining taps
should be at least 1/2 in. BSP nominal size and be in
accordance with BS 2879.
The boiler is suitable for use with minibore or microbore
systems. Copper tubing to BS 2871: Part 1 should be
used for water carrying pipework. All capillary joints in
all DHW pipework must be made with lead free solder.
Particularly where a new boiler is to be fitted to an
existing system, it is good practice that the system is
thoroughly cleansed.
Caution!
To prevent the formation of deposits and pre-
vent serious damage to the appliance and sys-
tem, cleansers must be used carefully and must
be completely removed by thoroughly flushing
the system. Cleansers should only be left in
systems for a maximum of 24 hours.
This cleansing must take place prior to the fitting of the
new boiler and be in accordance with BS 7593. For
advice on the application of system cleansers contact
Sentinel, Betz Dearborn Ltd. Widnes, Cheshire, WA8
8UD. Tel: 0151 420 9595, or Fernox, Alpha Fry
Technologies, Tandem House, Marlow Way, Croydon,
CR0 4XS. Tel 0870 8700362.
3.10.2 Filling and preparing heating system
The system can be filled using the built in filling loop
(ecoTEC plus combination boilers only) or via a separate
filling point fitted at a convenient position on the
heating circuit. The connection must be removed when
filling is completed. Where local Water Authority
regulation does not allow temporary connection, a
sealed system filler pump with break tank must be used.
The heating system will not be filled automatically from
the domestic hot water side. (Alternative methods of
filling sealed systems are given in BS 5449).
Mixing additives with the heating water can result in
material damage. However, up to now, no
incompatibility with Vaillant appliances has been
detected with proper use of the following products.
• When using additives, follow the additive
manufacturer‘s instructions without exception.
General requirements 3
Vaillant accepts no liability for the compatibility of any
additive or its effectiveness in the entire heating
system.
Additives for cleaning purposes
(subsequent flushing required)
- Fernox F3
- Jenaqua 200
- Jenaqua 300
- Jenaqua 400
- Sentinel X 300
- Sentinel X 400
Additives intended to remain permanently in the
system
- Fernox F1
- Fernox F2
- Jenaqua 100
- Jenaqua 110
- Sentinel X 100
- Sentinel X 200
Additives for frost protection intended to remain
permanently in the system
- Fernox Antifreeze Alphi 11
- Sentinel X 500
• Inform the operator of the necessary measures in
case you have used any of these additives.
• Inform the operator of the required procedures for
frost protection.
• Observe the applicable national regulations and
technical standards for the treatment of filling and
top-up water.
Provided the national regulations and technical
standards do not specify any higher requirements, the
following applies:
• You must treat the heating water
- if the total volume of filling and top-up water
exceeds thrice the nominal volume of the heating
system over the service life of the system
or
- if the limits given in the following tables are not
adhered to.
Page 15
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