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3
GENERAL BOILER INFORMATION
3.1
GAS SUPPLY
The meter and supply pipes must be capable of delivering the required quantity of gas in addition to the demand from any
other appliances in the house.
Refer to Technical performance data in Section 2.1 and 2.2.
The complete installation, including the meter, must be tested for gas tightness and purged as described in BS 6891.
3.2
ELECTRICAL SUPPLY
The boiler requires a 230/240 V ~ 50 Hz mains supply, fused at 3 A
The boiler must be earthed.
There must only be one common isolator, providing complete electrical isolation, for the boiler and any external controls.
This boiler has been fitted with a supply cable, however, if it is necessary to fit a cable use PVC insulated cable not less than
0.75 mm² (24 x 0.2 mm) to BS 6500 Table 16.The boiler should be connected to a fused three pin plug and unswitched shuttered
socket outlet (both complying with BS 1363), or a fused double pole switch with a contact separation of at least 3 mm in both poles.
Wiring external to the boiler must be in accordance with the current IEE Wiring Regulations (BS 7671).
Note: If a room thermostat is fitted, it
3.3
AIR SUPPLY
The boiler does not require any air vents for cooling in the room in which it is installed or when installed in a cupboard or
compartment. The minimum clearances for servicing must always be maintained.
Note: A cupboard or compartment used to enclose the boiler must be designed and constructed specifically or the purpose,
i.e. comply with the Building Regulations.
3.4
FLUE SYSTEM - Fig. 3
The flue system
ust be installed in accordance with BS 5440:1.
For horizontal flues ensure that the Easy-Flue outer duct is installed ho izontally (please note that the Easy-Flue inner duct
already has a pre-determined slope towards the boiler for condensate to run back towards the boiler).
When additional flue xtensions are used, ensure the flue slopes d wnwards towards the boiler by a minimum of 25 - 30 mm
per metre of flu .
It is recommended that horizontal and vertical flue assem lies should be supported approximately every 1.5 m with access
provided to the joints.
Flue components are available as follows:-
CD Easy-Flue 500 mm (includes 90° bend and terminal) - Part No. 6.2000510.
CD Easy-Flue 1000 mm (includes 90° bend and terminal) - Part No. 6.2001010.
CD 750 mm flue xtension - Part No. 6.2000750.
CD 1000 mm flue xtension - Part No. 6.2001050.
CD 100 mm flue suppo t brackets (pack of 5) - Part No. 6.1000355.
CD 90° bend - Part No. 6.2000590.
CD 45° bend - Part No. 6.2000545.
CD Vertical flue te minal assembly. Refer to the separate installation instructions supplied with the assembly.
The following methods determine the correct length of flue required
For rear exit flue (including te minal)
For side exit flue (including te minal)
For vertical flu
L = H minus 1000 mm for vertical terminal assembly
Where
L = Required flue lengt
B = Finished wall thickness
C = Distance from the inside wall to the side of the boiler
H = Distance from top of boiler side panel to roof position
Note: 1. If an extra 90° bend is used, this reduces the maximum flue length by 1.3 m. Each 45° bend used reduces the
maximum flue length y 0.9 m.
2. Under no circumstances must the flue length (including allowances for extra bends) exceed 12 metres horizontally
and only 14 metres vertically.
3. Failure to use Alpha CD flue components with the boiler will invalidate the boilers CE approval, guarantee and may
be unsafe.
4. Further Plume management flue accesso ies are available - Refer to the Easy-Flue installation instructions.
8
Alpha Intec C and X - General Boiler Information
ust be suitable for 230/240 V switching.
L = B + 160 mm (205 mm if wall jig is used)
L = B + C + 245 mm (min. side clearance required is 5 mm)
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