Baxi Potterton Boiler Spezifikationen PDF herunterladen (Seite 7)

Installation Requirements - Page 7

1.3 Location Of Boiler

• In siting the combination boiler, the following limitations,

MUST be observed:

a) The position selected for installation should be

within the building, unless otherwise protected by a

suitable enclosure. It must allow adequate space for

installation, servicing and air circulation around the

appliance.

b) This position MUST also allow the chosen flue

termination to be made correctly. The boiler must be

installed on a flat vertical wall which is capable of

supporting the weight of the appliance and any

ancillary equipment.

• The appliance may be installed on a combustible wall,

subject to the requirements of the Local Authorities and

Building Regulations.

• IMPORTANT NOTICE: If the combination boiler is to

be fitted in a timber framed building it should be fitted in

accordance with the British Gas publication 'Guide for

Gas Installations in Timber Frame Housing'. (Reference

DM2). If in doubt advice must be sought from the Local

Gas Region.

• The combination boiler may be installed in any room or

internal space, although particular attention is drawn to

the requirements of the current I.E.E. Wiring

Regulations, and in Scotland, the electrical provisions of

the Building Regulations applicable in Scotland, with

respect to the installation of the combination boiler in a

room or internal space containing a bath or shower.

• Where a room-sealed appliance is installed in a room

containing a bath or shower, any electrical switch or

appliance control, utilising mains electricity should be so

situated that it cannot be touched by a person using the

bath or shower.

• A compartment used to enclose the combination boiler

MUST be designed and constructed specifically for this

purpose. An existing cupboard, or compartment, may

be used provided it is modified accordingly. See Section

1.4 'Air Supply'.

• Where installation will be in an unusual location, special

procedures may be necessary. BS 6798 gives detailed

guidance on this aspect.

• Clearances around the Appliance - Fig. 4.

Side Clearance: For operation and servicing, 25 mm

each side.

Top Clearance: A minimum of 160 mm, but 300 mm is

preferred to allow removal of the central heating

expansion vessel, without removing the appliance from

the wall, if replacement is required.

Bottom Clearance: A bottom clearance of 220 mm is

required between the appliance and any surface.

Frontal Clearance: A minimum of 500 mm is required in

front of the appliance for access during servicing, the

front clearance can be reduced providing the door/cover

can be removed to expose the entire case front.

1.4 Air Supply

• Detailed recommendations for air supply are given in BS

5440:2. The following notes are intended for general

guidance: It is not necessary to have a purpose provided

air vent in the room or internal space in which the

combination boiler is installed. If the combination boiler is

to be installed in a cupboard or compartment, permanent

air vents are required (for cooling purposes) in the

cupboard/compartment, at both high and low levels. The

air vents must either communicate with a room/or be

direct to outside air.

Table 1. Air Supply

1.5 Flue Systems & Terminal Location

• The standard horizontal flue system is suitable for

installations up to 1092 mm, measured from the centre

line of the boiler outlet to the outside face of the wall. The

wall liner enclosed will accommodate thicknesses of 400

mm and can be cut to a minimum length of 76 mm.

• One metre flue extension kits are available to extend

horizontal flues to a maximum length of 3078 mm.

• 90° In-line elbow kits and 135° In-line Bend kits are also

available for more flexible siting. Horizontal flues can be

set at 45° angles to the combination boiler, through 360°,

to the miniature terminal on the outside of the building.

• A Concentric Vertical flue system is available which

when used in conjunction with One metre flue

extension kits is suitable flue heights up to 3 metres to

terminate through a roof.

• A Twin tube Vertical flue system is also available for

flue heights up to 8025 mm when used in conjunction

with one metre twin tube extension kits.

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