© MHG Heating Ltd
MHG Heating Ltd, Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey, KT20 5LR
P:0845 6448802 F:0845 6448803 E:
W: www.mhgheating.co.uk
010617
23
11.0 System Water Quality
Water Treatment, System Cleaning (BS 7592: 2006)(Part L2 Building Regulations)
The entire primary system MUST be thoroughly cleaned and flushed to remove
debris, flux residues, etc. before opening the boiler isolation valves & flooding the
boiler. Particular care must be taken where the ProConboiler is being retro-fitted
into an old/existing system, as system silt or magnetite can be very damaging to the
new boiler.
Following cleaning and flushing the system MUST be dosed with a good quality water
treatment to prevent corrosion and the formation of scale. FAILURE TO OBSERVE
THESE REQUIREMENTS WILL RENDER THE WARRANTEE ON THE APPLIANCE VOID.
Cleaning, flushing and water treatment must be carried out in accordance with the
requirements of BS 7593:1992, prior to commissioning the boiler.
Repeated draining and refilling of the system, without replenishment of water
treatment, must be avoided, as this is very damaging to the boiler. The boiler must
not operate without the system water being correctly and adequately treated, and
maintained, with an appropriate level of corrosion inhibitor.
When utilizing HTP boilers system water treatment must be applied to the primary
circuit.
For specific guidance on water treatment, direct contact is advisable with:-
11.1 Care With The Use of Solder Flux
The ProCon HT range has heat exchangers fabricated from 316L Stainless Steel. It is
most important that the compatibility of any flux is checked with the supplier before
use, and that any flux manufactures recommendations are strictly followed with
regards to use in conjunction with Stainless Steel.
Fernox
2 Genesis Business Park
Albert Drive
Sheerwater
Woking Surrey
GU21 5RW
P:0330 100 7750
F: 0330 100 7751
E:
W:
www.fernox.com
