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Water treatment
If treatment is used fer limited recommended only the use of Fernox or Sentinel water treatment products,
which must be used in accordance with the manufactures instructions. for further information contact:
Fernox Manufacturing Co. LTD.
Cookson Electronics, Forsyth Road
Sheerwater, Woking, surrey, GU21 5RZ
Tel: 0870 8700362
Note - If the boiler is installed on an existing system any unsuitable additives must be removed by tho-
rough cleansing. All systems should be cleansed according to B.S. 7593.
Note - In hard water areas treatment to prevent lime scale may be necessary.
Note - It is important that the correct concentration of the water treatment product is maintained in
accordance with the manufacturers instructions.
2.4 Connection to the gas system
If necessary the local Gas supplier should be consulted, at the installation planning stage, in order to
establish the availability of an adequate supply of gas.
An existing service pipe must not be used without prior consultation with the local Gas supplier.
A gas meter can only be connected by the Local Gas supplier, or by a Local Gas suppliers Contractor.
Installation pipes should be fitted in accordance with BS6891.
Appliance inlet working pressure must be 20mbar MINIMUM, for NG and 37 mbar minimum for LPG.
Do not use pipes of a smaller size than the boiler inlet gas connection (22 mm).
The complete installation must be tested for gas soundness and purged as described in BS689.
All pipework must be adquately supported. An isolating gas valve is provided and should be
fitted on the boiler gas inlet. Please wait 10 minutes when lighting from cold before checking
gas rate. Gas pressures should be checked after the boiler has operated for 10 minutes to reach
thermal equilibrium. This appliance has no facility to check the burner pressure and the gas
valve is sealed and should not be adjusted. A combustion test can be carried out (see page 28
combustion analyser testing).
The isolation kit shown in Fig. 11 is supplied as standard.
2.5 Electrical Connections
The unit must be installed in conformity with current national and local regulations.
Connection to the electrical Supply
The boiler must be connected to a single-phase, 230 Volt-50 Hz electric supply.
The unit's electrical safety is only guaranteed when correctly connected to an efficient earthing
system executed according to current safety standards. Have the efficiency and suitability of the
earthing system checked by professionally qualified personnel. The manufacturer is not responsible
for any damage caused by failure to earth the system. Also make sure that the electrical system
is adequate for the maximum power absorbed by the unit, as specified on the boiler dataplate,
in particular ensuring that the cross sectional area of the system's cables is suitable for the power
absorbed by the unit.
The boiler is prewired and provided with a cable and fitted with a 3 amp plug for connection to the
electricity supply.
14
Sentinel Performance Solutions Ltd
The Heath Business & Technical Park
Runcorn, Cheshire WA7 4QX
Tel: 01928 588331
Cod. 3540U431 - 11/2009 (Rev. 00)
FERtech 25 OV
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