0108X1DHGBEN
10
EURO-X
Model
Heat input
kW
Low level
cm²
1025
30.28
140
1030
34.94
160
1035
43.26
200
≤
60 kW
1045
52.00
240
1055
64.70
290
1075
88.95
340
≥
60 kW
1095
118.70
410
4.3 Where it is known that the air change rate is less than
0.5/h or where the building volume is less than 4.7m³
per kW of heat input, ventilation grilles must be
provided at low level i.e. below the level of the
appliance flue connection. In cases where doubt
exists over the air change rate additional ventilation
must be provided.
For air heaters of heat input less than
60 kW the total minimum free area shall not be less
than 4.5 cm² per kW of total rated heat input as table
5 below.
For our heaters of heat input 60 kW or more the total
minimum free area shall not be less than 270 cm²
plus 2.25 cm² per kW in excess of the 60 kW rated
heat input.
4.4
Table 5. Air Supply Requirement for Combustion &
Ventilation.
Note :
Ventilation grilles must be installed so that air
is drawn directly from outdoors. In the event that
communication from the space where the heater is
installed to outdoors is via another room then the
route to outdoors must be ducted through the
communication area.
The grille velocity for all air supply must not exceed
2.0 m/s. Grilles should be sited where they cannot
easily be blocked or flooded. Notices should be
provided advising about the need to keep air supply
grilles unobstructed.
4.5 Where mechanical ventilation is used it shall be by
mechanical inlet with either mechanical or natural
extraction. Automatic means of control such as
interlocks must be provided.
The function of other ventilation plant in the zone
must be taken into account. At no time should it be
possible to create a negative pressure in the zone as
this will lead to a hazardous situation whereby the air
heater flue will act as a pressure relief.
4.6 EURO-X 1000 D air heaters which are used in the free
blowing mode i.e. without discharge air ducting are
installed within the room to be heated If it is
necessary to install the air heater in a separate room
and blow the air into an adjoining room, then return
air should be ducted to the appliance.
EURO-X D air heaters may be used for fresh air and/or
return air as combined heating/ventilation appliances
within an air handling system.
