Alpha Pro Tec Plus 115, Installation And Servicing Instructions, Page: 13 / 56

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Alpha Pro Tec Plus 50, 70, 90, 115 - General Boiler Information
3.5 FLUE TERMINATION
The Alpha Pro Tec Plus range of boilers can be individually flued using either 80 mm open flue configuration or 80/125 mm
concentric flue.
Multiple boilers can be individually flued or cascade flue kits are also available in 100 mm or 200 mm.
When installing these boilers careful planning and consideration for the flue system must be undertaken. All flue systems
must conform to the relevant standards depending on the boiler size and configuration.
Refer to BS 6644, BS 5440 or IGE/UP/10 for the correct flue location requirements.
3.6 BOILER LOCATION
The boiler is not suitable for external installation unless it is installed within a purpose designed weatherproof building.
The boiler must be installed on a flat vertical wall which is capable of supporting the weight of the boiler. The boiler can be fitted
to or adjacent to a wall comprising of a combustible material without the need for a special thermal insulation barrier.
If the boiler is to be fitted in a timber framed building, it should be fitted in accordance with the Institute of Gas Engineers
'Guide for Gas Installations in Timber Frame Housing', reference IGE/UP/7.
The boiler may be installed in any room or internal space, although particular attention is drawn to the requirements of the
current IEE Wiring (BS 7671) Regulations, and in Scotland, the electrical provisions of the Building Regulations applicable in
Scotland, with respect to the installation of the boiler in a room or internal space containing a bath or shower. Where a room-
sealed boiler is installed in a room containing a bath or shower, it must not be possible for a person using the bath or shower
to touch any electrical switch or boiler control utilising mains electricity.
The boiler may be installed in a cupboard or compartment, provided it is correctly designed for that purpose, i.e. complies
with the Building Regulations and the requirements of BS 6798 and BS 6644.
Propane Gas (LPG): Installation pipes, cylinders and pressure regulators should be fitted in accordance with BS 5482:1.
Bulk tank installation must comply with the requirements of the Home Office code of practice for the storage of liquefied
petroleum gas at fixed installations. The boiler must not be installed in a room or internal space below ground level, e.g. in a
basement or cellar, except where at least one side is open to ground level.
3.7 FROST PROTECTION
The boiler is fitted with a frost thermostat that activates the pump and burner when the system water temperature in the
boiler falls below 3°C.
The electrical supply to the boiler must be left on for the thermostat to operate and the selector switch must be set to ON .
Fig. 3.2
3.4.2 Vertical Concentric Flue Options
Not less than
1000 mm
L Max.
Not less than
1000 mm
L Max.
Pro Tec Plus model
80/125 mm Concentric flue
80 mm Open flue 50
14.5 m
30 m
L Max.
70
11 m
28 m
90
8 m
14 m
115
5 m
8.5 m