Powrmatic LNVx Series User, Installation And Servicing Instructions page 17

1.3 General Requirements
1.3.1. Related Documents
AlIlNVx heaters compl V wIth the following European
Directives'
EntrlV
Related
Product Directive:
Gas Appliann Dired ive:
Electromagnetic Compatibility Directive:
low V oltage Directive:
Machln.ry Directi ve:
2oo9/125 / £C"
2009/1 42/£(
2004/ 108 / £(
20061951£(
2006/421E(
Air heater(sl must be Installed In accordance with 856230
and 855440 plus any relevant requirements of local and
national bUilding codes . • wh~~ appropriate.
1.3.2 Location
Powrmatlc lNVx units ar£' deSIgned to opt-rate withl" an
ambient temperature range of ·10 to 25 -C
LNVx heaters can be installed
in
several ways:
i)
suspended from 'drop rods' via purpose designed M10
suspenslon fhdnl points on the healer, Ii) attached to our
optional walt support brackets or Hi} positioned on a level.
non-combustible base. In all cases, it is important that all
supporting structures have been assessed with regard to
the relevant weight loadings.
Coosideration should be given to flue routes and points of
exit, gas, electrical and (ontrol connmions. ConsideratIon
should also be given to the throw characteristics of the
heater, issues of public access and siting of environmental
control stations
andlor
remote temperature sensors
where the position needs to be representative of the zone
temperature to which they refer.
Where the location of the air heater is such that it might
suffer external mechanical damage e.g. from overhead
cranes, fork
hft
trucks, it must be suitably protected,
Heaters should not be installed in hazardous areas or
areas where there is a foreseeable fisk of flammable
or corrosion Inducing particies, gases or vapours being
drawn into
the
combustion air or main fan circuits.
Areas where specjaj consideration or advice may be
required could include but is not limited to -
Where de-greasing solvents are present, even In
minute concentrations
Where paint spraying is cartled out
Where styrenes or other laminating products are
used
Where airborne silicone is present
Where petrol engine vehicles are stored or
maintained
Where dust Is present (Le. wood working or
joinery shops)
Where high levels of
(,lCtract
persist
InstallatIOn
In
such areas may be poSSIble under speCIfic
condItIons. Please consult our TechnICal Department for
further information.
1.3.2.1 Sizing of the heater
The heater should be correctly sized for the area that it is
heating, Full calculatIons need to be preformed to ensure
the correct KW output heater is fitted {CiBSE elemental
methodology can be used, or the Powrmatic Technical
Department can provide guidelines}.
1.3.3 Electrical Supply
Wiring external to the air heater must bl! Installed In
accordance with the I.E.E. Regulations for Electrical
Installations and any local rl!gulatJons which apply.
All standard heaters are supplied by 230V -1 ph, 50Hz.
The method of connectIon to the main electricitv supply
must:-
- facliitate the complete electrIcal isotation of the unit(s}
via a suitable fused isolator (see section 2.4.5 for ratings)
- be in a readily accessible position adjacent to
the
unit(s)
- serve oNy the UM(S}
- have
a
contact separation of at least 3mm in all poles.
See the accompanying wiring diagram for the heater
electrical connections
lNVx (CF and
fan/s~encer
units can also be supplied for
400V 3N,
50Hz,
1.3.4 Gas Supply
A servicing valve and union to facilitate servicing must
be fitted to the gas Inlet pipe work of the heater. The
gas supply must be completed In solid pIpe work and
be
adequately supported.
Heaters suspended by drop rods, straps or chains must
have a fleXIble connection as the final link between the
gas supplV pipe work and the heater. Sufficient slack
must be left In the connection to take account of normal
movement of the heater.
WARNING: When compleUnc the final
ps
connection to the
heate,
do not
piau
undul
strain on the ps
pipe work
of the heater.
1.3.4.1 Service Pipes
The local gas undertaking should be consulted at the
installation planning stage in order to establish the
availability of an adequate supply of gas to suit the
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