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 38mm (1.5 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 300mm (12 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
should 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
The base duct on which the air heater stands must be only placed on a non-combustible floor.
2.5
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
A room sealed 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, he 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 a HI-SPEC ELJAN/SE water heater.
VENTILATED
Low level grille
132 cm
2
(20in
2
)
FROM INSIDE
BUILDING
High level grille
132cm
2
(20in
2
)
VENTILATED
Low level grille
66cm
2
(10in
2
)
FROM OUTSIDE
BUILDING
High level grille
66cm
2
(10in
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.
2
23
409
1
0
0
0
SPIGOT POSITION
FROM FRONT
FRONT VIEW
SIDE VIEW
TOP VIEW
BASE VIEW
2
8
2
5
5
24
255
1
1
5
4
6
3
2
8
8
3
6
8
140
28
476
330
343
455
15
315
77
77
255
1
0
1
2
5
1
2
5
38
Fig. 8, PRINCIPAL DIMENSIONS (mm)