BENSON variante 2 series, Инструкция пользователя

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heated space,
plant room or
enclosure where
the heaters are
to be installed .
It is strongly
recommended
that BS 6230 :
2005 is referred
to for further
information
concerning
ventilation
requirements
2.4.1 Heaters installed within the
heated space
Where heaters are installed within the heated
space (i.e. not a plant room , or enclosure )
then
Combustion air or heater related ventilation
air
will not be required if -

The heaters are installed in room
sealed mode (ie with a positive
connection to atmosphere of both flue
and combustion air)
OR

If the design air change rate of the
heated space is 0.5 air changes per
hour or greater
The design air change rate may be satisfied
by natural infiltration or by mechanical
ventilation.
Combustion air ventilation
will be required if

The heater(s) are installed with flue
only (ie without the positive connection
to atmosphere of a combustion air
duct)
And

The design air change rate of the
heated space is less than 0.5 air
changes per hour
Where heater(s) are installed without the
positive connection of combustion ductwork
within a heated space where air change rate
of that heated space is less than 0.5 air
changes per hour then it will be necessary to
provide either natural ventilation openings to
the heated space (Section 2.4.1.1 refers)
or the mechanical ventilation of the heated
space (Section 2.4.1.2 refers)
2.4.1.1
Natural Ventilation Openings to the
Heated Space
If the heater(s) are to be installed without the
positive connection of combustion air
ductwork within a heated space, and where
MODEL
Minimum Free Area Of
Ventilation Opening
High Level Low Level
cm
2
cm
2
250 None 158
330 None 211
410 None 263
490 None 315