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 9.
Note. Systems incorporating zone valves which
could completely cut off the ow 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 ow
through the radiator.
These valves should now be left as set.
2. Open all manual or thermostatic radiator
valves and adjust the lockshield valves on
the remaining radiators, to give around 20
o
C
temperature drop at each radiator.
3. Adjust the room thermostat and programmer
to NORMAL settings.
4
sysTEM BALANCINg
5
WATER TREATMENT
CENTRAL hEATINg
The Vogue range of boilers have a stainless steel heat
exchanger.
IMpORTANT.
The application of any other treatment to this product may
render the guarantee of Ideal stelrad group Invalid.
Ideal stelrad group recommend Water Treatment in accordance
with the Benchmark Guidance Notes on Water Treatment in
Central Heating Systems.
If water treatment is used Ideal stelrad group recommend
only the use of
SCALEMASTER GOLD 100, FERNOx, MBI,
ADEY MC1 or SENTINEL x100 inhibitors and associated 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 articially softened water is
NOT permitted.
4. Under no circumstances should the boiler be red before the
system has been thoroughly ushed.
DOMEsTIC hOT WATER
In hard water areas where mains water can exceed 200ppm
Total Hardness (as dened by BS 7593:2006 Table 2) a scale
reducing device should be tted into the boiler cold supply
within the requirements of the local water company. The use of
articially softened water, however, is not permitted.
Ideal stelrad group recommend the use of Fernox
Quantomat, Sentinel Combiguard and Calmag CalPhos I
scale reducing devices or Scalemaster Inline Scale Inhibitor
branded Ideal, 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
3
sysTEM REqUIREMENTs - (continued)
DOMEsTIC hOT WATER
1. The domestic hot water service must be in accordance with BS 5546
and BS 6700.
2. Refer to Table 1 for minimum and maximum working pressures. In
areas of low mains water pressures the domestic hot water regulator
may be removed from the DHW ow turbine cartridge. Refer to
Frame 76. The boiler will require the ow rate to be set to obtain a
temperature rise of 35
o
C at the tap furthest from the boiler.
3. The boilers are suitable for connection to most types of washing
machine and dishwasher appliances.
4. When connecting to suitable showers, ensure that:
a. The cold inlet to the boiler is tted with an approved anti-vacuum
or syphon non-return valve.
b. Hot and cold water supplies to the shower are of equal pressure.
5. hard Water Areas
Where the water hardness exceeds 200mg/litre (200ppm), it is
recommended that a proprietary scale reducing device is tted into the
boiler cold supply within the requirements of the local water company.
IMpORTANT. Provision must be made to accomodate the expansion of
DHW contained within the appliance. If the DHW inlet contains a back
ow prevention device or non-return valve, e.g. a water meter, then a
mini expansion vessel should be tted between the device and the boiler
in the cold inlet pipe.
Cold water, rising main & pipework in exposed areas need to be suitably
lagged to prevent freezing.
Note. DHW Expansion Vessel kit available from Ideal.
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