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GENERAL REQUIREMENTS
3.1 Related documents
It is important that all gas appliances are installed in
accordance with the rules in force and by
appropriately qualified persons. Failure to install
appliances correctly could lead to prosecution. It is
in your own interest and that of safety to ensure
compliance with the law.
3.2 Heater location
The location chosen for the air heater must permit
the provision of a satisfactory flue system venting to
outdoor atmosphere and adequately ventilated to
provide for combustion air. The location must also
provide sufficient space to allow the heater to be
serviced.
Table 3
Minimum installation clearances (mm)
LCSA-4
mm
Top
150
Flue connector
150
Access panel
800
Non access side
150
Bottom
150
Rear*
450
*
Measure rear clearance from the back of the motor
Table 4
Recommended mounting heights to underside (m)(*)
LCSA-4
12
20
30
→
-50 60-
→
100 120
→
145
Mounting
height
2,5
3
4
5
6
*
Height from floor to bottom surface of heater. These are
recommendations only. Positioning of heaters depends on
application.
Air heaters should, where ever possible always be
installed to blow toward or along external wall
surfaces. Where two or more air heaters are
installed in the same room, a general scheme to
ensure continuous air circulation should be
maintained for best results.
Suspended heaters are most effective when located
as close to the occupancy zone as possible, this fact
should be born in mind when determining the
mounting heights to be used. Care should be
exercised to avoid directing warm air directly onto
the occupants. Partitions, columns, counters,
storage racking, etc. should be taken into account
when choosing the location so that an unobstructed
path for the air circulation can be maintained.
Where air heaters are located in the centre of the
space to be heated, the air should be discharged
toward outside walls. In large areas, they should be
located to discharge air along outside walls with
additional heaters provided to blow air into the
centre of the area.
In places where infiltration of cold is excessive, such
as entrance doors it is desirable to locate a heater
so that warm air is discharged directly toward the
source of cold air from a distance of 4,5 - 6,0m
Air heaters should not be installed in
corrosive atmospheres, i.e. near plating
or degreasing plants or in areas where
there is a fire risk.
Do not locate the air heater where it may
be exposed to water spray, rain, etc.
3.3 Combustion air supply & flue
system
The air heater may be installed as a balanced flue
(Type C) heater requiring both a combustion air inlet
duct and a flue pipe or as a power vented (Type B)
heater, which requires only a flue pipe exhausting to
outdoors. All products of combustion must be flued
to outdoor atmosphere.
Figure 2a : Combustion air and flue pipe sockets
1
2
3
4
Legend :
1 Flue outlet socket
2 Combustion air inlet opening
3 Gas connection inlet with sealing ring
4 Electrical connections
Each heater installed as a type B appliance must be
fitted with an individual flue pipe and the combustion
air inlet opening must be provided with a protection
grill (ask your distributor for the appropriate
protection grill (IP20) (dia130 = PN 02 25094 ).
Each heater installed as a type C appliance must be
fitted with an individual combustion air/flue pipe
system. Only systems specified by the air heater
manufacturer may be used.
Common flue and combustion air systems must
not be used
IMPORTANT: The flue must be installed in
accordance with national and local regulations.
Failure to provide proper flueing could result in
death, serious injury and/or property damage.
The air heater must be installed with a flue to the
outside of the building. Safe operation of any
power vented gas apparatus requires a properly
operating flue system, correct provision for
combustion air, and regular maintenance and
inspection.
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