Installation shall be in accordance with the current editions of:-
Building Standards (Scotland) (Consolidation) Regulations
Building Regulations
Gas Safety (Installation and Use) Regulations (as amended)
BS7671 Institute of Electrical Engineers (I.E.E.) Wiring Regulations
BS6891 Installation of Low Pressure Gas Pipework of up to 28mm (R1) in domestic premises (2nd family gases).
BS5440 Pt.1 (Flues for Gas Appliances)
BS5440 Pt.2 (Air Supply for Gas Appliances)
BS5864 Installation of Gas Fired Ducted Air Heaters
Model and Local Authority Bye-laws
IMPORTANT: STATUTE LAW DEFINES THAT ALL GAS APPLIANCES MUST BE INSTALLED BY COMPETENT
PERSONS, (i.e. CORGI REGISTERED INSTALLERS) IN ACCORDANCE WITH THE GAS SAFETY (INSTALLATION
AND USE) REGULATIONS (CURRENT EDITION). FAILURE TO COMPLY WITH THESE REGULATIONS MAY LEAD
TO PROSECUTION.
2.
HEATER COMPARTMENT AND CLEARANCES
(See BS5864)
2.1
IMPORTANT:
If the heater is to be fitted to an existing base duct (warm air plenum), always ensure that installation is
carried out such that the rear right hand corner of the heater is aligned with the rear right hand corner of the base duct, so
that any overhang or blanking off will be at the front and/or left hand side. In any event, blanking plates must be
mechanically secured and all joints sealed.
2.2
When the heater is fitted into a compartment a minimum clearance from the compartment side walls of 20mm (0.75 in)
and 25mm (1.0 in) from the front must be left. Consideration should also be given to the space required for the removal
and replacement of the filter tray and the entry of the gas and electrical supplies.
2.3
For service access, a minimum of 600mm (24 ins) is required at the front of the heater. Space must also be allowed, in a
compartment installation, to permit the removal of the heater. The clearance between the appliance and the compartment
must be not less than 75mm (3 in). However, if clearances are less than 75mm, the internal surface of the compartment
must be lined with non-combustible material. The compartment must be of a fixed rigid structure.
2.4
In airing cupboard installations, the part used as the air heater compartment must comply with the relevant sections of BS
5864 and must be completely separated by either a non-combustible partition, or a perforated metal partition with the
perforations not exceeding 13mm (0.5 in).
2.5
The base duct on which the air heater stands must be only placed on a non-combustible floor.
2.6
IMPORTANT: The red ‘SAFETY’ label supplied with the heater, MUST BE AFFIXED in a prominent position
on the inside of the compartment door.
3.
VENTILATION AND COMBUSTION AIR
3.1
An SE-duct appliance does not require a combustion air vent in the room or internal space in which it is installed. If
the appliance is installed in a compartment, the minimum total free area of the high and low level ventilation air vents
must be as specified in Table 1 (as per BS5440 Pt. 2 Table 1).
Note:
These free areas allow for the operation of the appliance in combination with an ELJAN 4/SE water heater.
VENTILATED
Low level grille
127 cm
2
(19.7in
2
)
FROM INSIDE
BUILDING
High level grille
127cm
2
(19.7in
2
)
VENTILATED
Low level grille
63cm
2
(9.8in
2
)
FROM OUTSIDE
BUILDING
High level grille
63cm
2
(9.8in
2
)
Table 1: Minimum Effective Areas
3.2
Both vents must communicate with the same room or internal space, or must both be on the same wall to outside air. The
vertical distance between the vents shall be as large as is practicable. The compartment containing the room sealed
appliance MUST be labelled to warn against blockage of vents - referring to BS 5440 Part 2, clause 4.2.4.
2
23
Fig. 8, PRINCIPAL DIMENSIONS (mm)
SIDE VIEW
REAR VIEW
BASE VIEW
FRONT VIEW
TOP VIEW
3
1
187
380
281
1
6
4
3
6
2
52
33
32
4
1
1
4
7
6
1
2
7
374
459
37
32
257
8
1
6
1
0
2
2
3
9
3
7
6
5
6
6
1
1
1
1
1
0
d
ia
.
1
2
0
d
ia
.
KNOCKOUTS
FOR WATER
CONNECTIONS
(BOTH SIDES)
KNOCKOUT FOR
GAS CONNECTION
(BOTH SIDES)
