System Details; Water Circulating Systems; Treatment Of Water Circulating Systems - Baxi Ecogen 24/1.0 Installation & Servicing Instructions Manual

Gas fired wall mounted condensing boiler and power generator
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6.0 System Details

6.1

Water Circulating Systems

1. The appliance is only suitable for use on sealed systems.
2. Ideally fit a new sealed heating system to Building
Regulations part L1 (2010). If an existing sealed system is
to be used the following procedure must be completed
before the Ecogen is installed.
• The system must be cleaned with Fernox F3
• Power flush the system according to the power
flush equipment supplier’s instructions.
• Fernox MB-1 inhibitor must be added according to
the supplier’s instructions.
Following the treatment process a sample of system water
must be taken and sent to Fernox for analysis to confirm
the system cleaning and dosing process has been
successful. A copy of the report to be sent to Baxi Heating
UK Ltd, heateam, Ecogen team, Brooks House, Coventry
Road Warwick CV3 4LL.
3. Please be aware of the resistance chart for this
appliance, and if you are replacing a low resistance boiler
ie. old cast iron, the system will need to be rebalanced
(See Section 4).
4. The following conditions should be observed on all
systems:
• Drain cocks should be fitted to all system low points.
• All gas and water pipes and electrical wiring must be
installed in a way which would not restrict the servicing
of the boiler.
• Position isolating valves as close to circulating pump as
possible.
6.2
Treatment of Water Circulating
Systems
1. All recirculatory water systems will be subject to
corrosion unless they are flushed and an appropriate
water treatment is applied. To prevent this, follow the
guidelines given in BS 7593 “Treatment of Water in
Domestic Hot Water Central Heating Systems” and the
treatment manufacturers instructions.
2. Treatment must involve the use of a proprietary
cleanser, such as Fernox F3 and an inhibitor such as
Fernox MB-1.
3. Full instructions are supplied with the products, for
further information contact Fernox (0870 870 0362).
Failure to flush and add inhibitor to the system will
invalidate the appliance warranty.
4. It is important to check the inhibitor concentration after
installation, system modification and at every service in
accordance with the inhibitor manufacturer’s instructions.
(Test kits are available from inhibitor stockists.)
5. For information or advice regarding any of the above
contact Technical Enquiries 0844 871 1555.
Page 12

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