16
Installation and Servicing
SECTION 1 - GENERAL
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, refer to
Section 1.13.
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.
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.
1.18 SYSTEM BALANCING
1.19 WATER TREATMENT
CENTRAL HEATING
The Vogue Combi GEN2 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 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 SM-1 PRO, 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 details the steps
necessary to clean a domestic heating system.
3.
In hard water areas, treatment to prevent limescale
may be necessary - the use of artificially softened
water is permitted when filling the system, where the
cold supply is fitted with a water softening device.
4.
Under no circumstances should the boiler be fired
before the system has been thoroughly flushed.
DOMESTIC HOT WATER
In hard water areas where mains water can exceed 200ppm Total Hardness
(as defined by BS 7593 Table 2) a scale reducing device should be fitted into
the boiler cold supply within the requirements of the local water company.
Water softener SHOULD be used in the event that the installation site has a water
hardness above 154 ppm (9 gpg). In any case, the cold supply to the boiler should
be within the constraints listed below;
Max
Min
Water Hardness (WH)
154 ppm (9 gpg)
80 ppm (4.7 gpg)
pH Value
8.5
6.0
Ideal Boilers
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
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 flow turbine cartridge. Refer to
Section 3.32. The boiler will require the flow 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.
If the shower/mixer valve does not incorporate non-return valves the
following must be followed:
a.
The cold inlet to the boiler is fitted 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 fitted 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
flow prevention device or non-return valve, e.g. a water meter, then a
mini expansion vessel should be fitted 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.
Summary of Contents for VOGUE COMBI GEN2 C26
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