installation
Flushing and Water Treatment
The boiler is equipped with a stainless steel heat exchanger.
The detailed recommendations for water treatment are given in BS 7593:1992 (Treatment of water in domestic hot water central heating systems); the following notes are given for general guidance.
If the boiler is installed on an existing system, any unsuitable additives must be removed.
Under no circumstances should the boiler be fired before the system has been thoroughly flushed; the flushing procedure must be in line with BS 7593:1992.
We highly recommend the use of a flushing detergent appropriate for the metals used in the circuit. These include cleansers produced by Fernox BetzDearbon, whose function is to disolve any foreign matter that may be in the system.
In hard water areas or where large quantities of water are in the system the treatment of water to prevent premature scaling of the main exchanger is necessary.
The formation of scale heat compromises the efficiency of the thermic exchanger because small areas of scale cause a high increase of the temperature of the metallic walls and therefore add to the thermal stress of the heat exchanger.
Demineralised water is more aggressive so in this situation it is necessary to treat the water with an appropriate corrosion inhibitor. Any treatment of water by additives in the system for frost protection or for corrosion inhibition has to be absolutely suitable for all metals used in the circuit.
The use of a corrosion inhibitor in the sysem such as Fernox MB- 1, BetzDearborn Sentinel X100 or Fernox System Inhibitor is recommended to prevent corrosion (sludge) damaging the boiler and system.
If
DO NOT MIX DIFFERENT TYPES OF ANTI-FREEZE
In
To prevent this problem it is necessary to use pipes with an “oxygen proof barrier”, in accordance with standards DIN 4726/4729.
If pipes of this kind are not used, keep the system separate by installing heat exchangers of those with a specific system water treatment.
IMPORTANT
Failure carry out the water treatment procedure will invalidate the appliance guarantee.
System Controls
The boiler is electrically controlled and is suitable for most modern electronic time and temperature controls. The addition of such external controls can be beneficial to the efficient operation of the system. The boiler connections for external controls are 12V DC and so only controls of 12V DC that have voltage free contacts should be used. (page 25).
ARISTON supply a range of wired and wireless system controls. Contact your supplier for more details.
Location
The boiler can be installed on any suitable internal wall (suitable sound proofing may be required when installing onto a stud partition wall). Provision must be made to allow for the correct routing of the flue and siting of the terminal to allow the safe and efficient removal of the flue products.
A compartment or cupboard may be used provided that it has been built or modified for this purpose.
It is not necessary to provide permanent ventilation for cooling purposes. Detailed recommendations are given in BS 5440 Part 2.
If it is proposed that it is to be installed in a timber framed building then reference should be made to British Gas Document DM2, IGE/ UP/7 or advice sought from Gas Safe.
Where a room sealed appliance is installed in a room containing a bath or shower, the appliance and any electrical switch or appliance control, utilising mains electricity should be situated specifically in accordance with current IEE Wiring Regulations.
For unusual locations, special procedures may be necessary. BS 6798:2009 gives detailed guidance on this aspect.
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