26
EcoBlue System
7219708 - 01 (04/15)
5
Before Installation
5.2.6 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 Sentinel X300 or X400, or Fernox F3 and an inhibitor
such as Sentinel X100 or Fernox MB-1.
3. Full instructions are supplied with the products. For further
information contact Sentinel (0800 389 4670) or 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. Complete the label supplied with the inhibitor and attach to
the inside of the boiler case. Detail of system treatment should
be added for future reference.
6. For information or advice regarding any of the above contact
Baxi Customer Support 0344 871 1525.
5.2.7 Expansion Vessel (CH only)
1. The appliance expansion vessel is pre-charged to 1.0 bar.
Therefore, the minimum cold fill pressure is 1.0 bar. The vessel
is suitable for correct operation for system capacities up to
100 litres (155 litres for 32 model). For greater system
capacities an additional expansion vessel must be fitted.
For GB refer to BS 7074 Pt 1. For IE, the current edition of I.S.
813 “Domestic Gas Installations”.
2. Checking the charge pressure of the vessel - to check the
charge accurately ensure the system is cold. It is also
necessary to relieve the pressure by draining the boiler. Using a
suitable gauge check the pressure at the valve on the underside
of the vessel. Adjust the pressure as required and repressurise
the system.
