building volume is less than 2.2m
3
per kW of heater input, then ventilation should be
provided in accordance with our table of recommended minimum sizes.
(b)
Where heater is supplied within a plant room or confined area
Where the heater is sited within a plant room or other confined area, then provision
must be made for the positive connection of either return air with high/low level
ventilation in accordance with BS 6230 or if return air is through a louver arrangement
then the return air louver must be of adequate size so as not to starve the main air
distribution fan of air. Under no circumstances must the burner be left to operate within
an area of negative pressure without a combustion air duct.
It is recommended that for applications such as these that you contact our Technical
Department.
(c)
The heater should not be operated within a toxic, corrosive or flammable
atmosphere
The basic minimum effective area requirement of the air (not return air louvres) including
air for combustion is as follows.
Heater Model
Min air vent area per heater (free area)
100/150
2300 CM
2
200/300
3000 CM
2
500/600
6500 CM
2
3.5
Ductwork
All heaters are supplied for free standing and free blowing operation and are not suitable
for connection to a ducted system unless the necessary drive modifications have been
made. Warmflow can make the necessary drive modifications in the factory to suit a
range of ductwork resistances (i.e. 0.5", 1.0", 1.5" and 2.0" wg).
Warmflow cannot guarantee the correct fan/drive configuration unless we have either
designed the ductwork system or were supplied with a set of as installed drawings for
the existing ductwork. Prior to installation all existing ductwork and distribution grilles
must be thoroughly cleaned to ensure there is no additional resistance within the
system.
As an additional safeguard against overheating Warmflow would recommend the
installation of a thermostat within the ductwork to control the operation of the burner.
The thermostat should be installed as close to the heater as possible. (Consult our
technical department for details).
3.6
Filters
Before fitting any inlet or outlet filters, insure that the resistances are maintained or the
correct modifications to belts, pulleys and motor have been made. (Contact Warmflow
for details and advice).
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Содержание WAH 100
Страница 16: ...3 7 7 Wiring Diagram for Single Phase Control Panel Page 14...
Страница 17: ...3 7 8 Wiring Schematic for Single Phase Control Panel Page 15...
Страница 19: ...3 7 10 Wiring Schematic for Three Phase Control Panel Page 17...
Страница 30: ...Notes Page 28...