16
Mexico Super RS485 - RS4125 -
Installation & Servicing
INSTALLATION
17 ELECTRICAL CONNECTIONS
WARNING.
The appliance MUST be efficiently earthed.
A mains supply of 230 V ~ 50 Hz is required.
The fuse rating should be 3A.
All external controls and wiring MUST be suitable for mains
voltage.
Wiring should be in 3-core PVC insulated cable NOT LESS
than 0.75 mm
2
(24 x 0.2 mm) to BS.6500, Table 16.
Wiring external to the boiler MUST be in accordance with
current l.E.E. (BS7671) Wiring Regulations and local
regulations. For Ireland reference should be made to the
current ETCI rules for electrical installations.
Connection must be made in a way that allows complete
isolation of the electrical supply - such as a double pole
switch, having a 3mm (1/8") contact separation in both
poles, or a plug and socket serving only the boiler and
system controls.
The means of isolation must be accessible to the user after
installation.
This connection should be readily accessible and be made
adjacent to the boiler (except in the case of bathroom
installations for domestic boilers where the point of
connection to the mains MUST be outside of the bathroom).
15 WATER CONNECTIONS
1.
Connect the system flow and return pipework to the
boiler as appropriate. Refer to Frames 3 and 4 for
guidance on system design.
Note.
When the required output exceeds 14.4 kW (49 000 Btu/
h) then 28mm (1") pumped flow and return pipes should
be used, both to and from the boiler.
Gravity connections MUST be at least 28mm (1").
2.
Ensure that all valves are open. Fill and vent the
system and check for water soundness.
Notes.
a.
Isolating valves must be fitted as close to the pump
as possible.
b.
The boiler is not suitable for use with a direct hot
water cylinder.
16 WATER TREATMENT
These boilers incorporate a cast iron heat exchanger.
IMPORTANT.
The application of any other treatment to this product may render the guarantee of
Caradon Ideal Limited
INVALID.
Caradon Ideal Limited
recommend Water Treatment in accordance with the
Benchmark
Guidance Notes on Water Treatment in
Central Heating Systems.
Caradon Ideal Limited
recommend the use of Fernox, GE Betz Sentinel or Salamander water treatment products, which must be
used on accordance with the manufacturers instructions.
For further information contact:
Fernox Manufacturing Co. Ltd, Cookson Electronics, Forsyth Road, Sheerwater, Woking, Surrey. GU21 5RZ. Tel. +44 (0) 1799 521133
or
G E Betz Ltd, Sentinel Division, Foundry Lane, Widnes, Cheshire, WA8 8UD. Tel. +44 (0) 151 424 5351
or
Salamander Engineering Ltd, Unit 24, Reddicap Trading Estate, Sutton Coldfield, West Midlands B75 7BU. Tel. +44 (0) 121 378 0952
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.
BS7593:1992 details the steps necessary to clean a domestic heating system.
3.
In hard water areas, treatment to prevent limescale 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.
INST
ALLA
TION
200942-1.p65
3/4/2004, 9:24 AM
16
