Appendix C - Benchmark SYSTEMATE 2000 Series Design, Installation And Servicing Instructions

Inhibitor (Corrosion & scale protection
2
of primary heating circuit)
On filling the heating system and before the boiler is fired up, it is important to ensure the
system water is treated with a suitable corrosion inhibitor, in accordance with the boiler
manufacturer's instructions.
Since the concentration of inhibitor present in a system can become diluted, for a number of
different reasons, the system should be checked annually and re-treated as required, or after
every full or partial drain-down. A water treatment manufacturer's test kit
may be used to check the correct concentration of inhibitor in the system.
Where recommended by a boiler manufacturer, a 'physical corrosion
protection device' may be fitted in the primary pipework in accordance
with the boiler manufacturer's instructions.
The Benchmark log book should be completed indicating the date and
details of any of the above products added and a permanent label
should be fixed to the system in a prominent location.
Scale protection
3
(Domestic hot water service)
Where a combi boiler and/or a hot water storage vessel is installed in areas where the mains
water can exceed 200ppm Total Hardness (as defined by BS 7593: 1993 Table 2) a scale
reduction device should be installed, in accordance with the boiler manufacturer's instructions.
The levels of water hardness may be measured using a water hardness test kit.
BUILDING REGULATIONS
Completion of the BENCHMARK log book requires that the 'competent person' undertaking the
installation and commissioning provide information relating to Cleaning, Inhibitor and Scale Protection.
This will demonstrate that the work complies with the requirements of the appropriate Building
Regulations.
This Guidance Note is produced on behalf of its members by the Central Heating Information Council.
For a full list of members visit www.centralheating.co.uk and for further advice on water treatment contact the
following members:
Culligan Sentinel
Heating & Hotwater Information Council, 36 Holly Walk, Leamington Spa,
Warwickshire CV32 4L Y Tel: 0845 600 2200 Fax: 01926 423284
www.centralheating.co.uk
G U I D A N C E
Fernox Salamander Engineering
Benchmark is managed by The Heating & Hotwater Information Council

APPENDIX C

N O T E S
Scalemaster
Page 38