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1.18 SYSTEM BALANCING
The boiler does not normally need a bypass but at least some radiators on the heating circuit, of load of at least 10% of the
minimum boiler output, must be provided with twin lockshield valves so that this minimum heating load is always available. See
note regarding thermostatic radiator valves on page 13.
Note. Systems incorporating zone valves which could completely cut off the flow through the system must also include a bypass.
BALANCING
1. Set the programmer to ON.
Close the manual or thermostatic valves on all radiators,
leaving the twin lockshield valves (on the radiators referred
to above) in the OPEN position.
Turn up the room thermostat and adjust the lockshield
valve to give an uninterrupted flow through the radiator.
These valves should now be left as set.
1.19 WATER TREATMENT
CENTRAL HEATING
The Independent Combi range of boilers have an
ALUMINIUM alloy heat exchanger.
IMPORTANT.
The application of any other treatment to this product may
render the guarantee of Ideal Boilers Invalid.
Ideal Boilers recommend Water Treatment in accordance with
the Benchmark Guidance Notes on Water Treatment in Central
Heating Systems.
If water treatment is used Ideal Boilers recommend only the
use of Scalemaster Gold 100,
SENTINEL-X100 or CALMAG CM100
water treatment products, which must be used in accordance
with the manufacturers' instructions.
Notes.
1. It is most important that the correct concentration of the
water treatment products is maintained in accordance with
the manufacturers' instructions.
2. If the boiler is installed in an existing system any unsuitable
additives MUST be removed by thorough cleansing. BS
7593:2006 details the steps necessary to clean a domestic
heating system.
3. In hard water areas, treatment to prevent lime scale may be
necessary - however the use of artificially softened water is
NOT permitted.
4. Under no circumstances should the boiler be fired before the
system has been thoroughly flushed.
16
SECTION 1 - GENERAL
FERNOX-MB-1, ADEY MC1,
inhibitors and associated
2. Open all manual or thermostatic radiator valves and adjust
the lockshield valves on the remaining radiators, to give
around 20
C temperature drop at each radiator.
o
3. Adjust the room thermostat and programmer to NORMAL
settings.
DOMESTIC HOT WATER
In hard water areas where mains water can exceed 200ppm
Total Hardness (as defined by BS 7593:2006 Table 2) a
scale reducing device together with Scalemaster in-line scale
inhibitor branded Ideal should be fitted into the boiler cold
supply within the requirements of the local water company.
The use of artificially softened water, however, is not
permitted.
Ideal Boilers recommend the use of Fernox Quantomat,
Sentinel Combiguard and Calmag CalPhos I scale reducing
devices, which must be used in accordance with the
manufacturers' instructions.
For further information contact:
Fernox Cookson Electronics
Forsyth Road, Sheerwater, Woking, Surrey GU21 5RZ
+44 (0) 8706 015000
Sentinel Performance Solutions
The Heath Business & Technical Park
Runcorn, Cheshire WA7 4QX
Tel: 0800 389 4670
Scalemaster Water Treatment Products
Emerald Way, Stone, Staffordshire ST15 0SR
Tel: +44 (0) 1785 811636
Calmag Ltd.
Unit 3-6, Crown Works, Bradford Road,
Sandbeds, Keighley, West Yorkshire BD20 5LN
Tel: +44 (0) 1535 210320
Adey Professional Heating Solutions
Gloucester Road, Cheltenham GL51 8NR
Tel: +44 (0) 1242 546700
Installation and Servicing
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