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2.2 Dimensional data
D
A
Models
A - Width
B - Depth
C - Height
D - Suspension point centres
A
E
A. Fan & motor assembly
B. Suspension eyebolts x 4
Fig.1 SD Destratification fan main components
3. Installation
3.1 Suspension
•
The products used for suspension should be fit for
purpose.
•
The minimum suspension height is 2.7m. .
•
Install the appliance with 2 persons, keep in mind,
working on height and the weight of the appliance.
•
Take care of a safe area when working on this ap-
pliance
•
Use certified access equipment.
•
Take care of your personal safety. Use safety
gloves and safety shoes.
The unit has been applied with 4 suspension eyes for use
with chains or steel wire (not included). Ensure the appli-
ance has an uninterrupted supply of air on both inlet &
outlet, a minimum clearance around the air inlet of 0.5m
should be observed. For exact distance for each specific
unit consult the technical data.
3.2 Calculating number of fans required
A rule of thumb, choose one fan per 300m
A more accurate method is on basis of circulation short-
age.
4
B
Dimensional Data
SD3
SD5
470
600
470
600
289
319
340
375
C. Thermostat
D. Outlet louvre frame assembly
floor surface.
2
This is easy to calculate:
Calculate the volume of the space in m
The resulting figure is the volume in m
SD destratification fans.
Select the SD model based upon air output, throw of the
C
unit and height of the room. Then simply take the calu-
lated air volume and divide by the air volume produced
by your selected SD model. The resulting figure is the qty
needed for your application.
NOTE
Selecting an SD model with the highest air vol-
ume is not nessecarily the best solution. It is important
SD7
SD10
to achieve uniform air distribution throughout the space,
600
800
for maximum comfort and reduced running costs.
600
800
Occasionally it will be nessecary to install more SD fans
328
438
that calculations indicate to achieve uniform air distri-
375
740
bution. In these scenarios, where possible, reduce the
model size and increase the quantity.
IMPORTANT
B
being installed at the height you propose.
3.3 Positioning
Position the destratification fan preferably towards the
A
end of the throw or area that is not directly served by the
heaters throw.
In general, a higher number of fans provides better air dis-
tribution.
We suggest that one fan is used per 150 to 300m
of floor surface, taking into account mounting height and
model.
Each SD fan should be fitted approx. 1.0m beneath the
roof or ceiling, but not closer than 0.35m. The distance
between floor and fan may not exceed the length of the
fan's throw as this will prevent the warm air from reaching
the low level. Ensure that the fan is not mounted lower
than the minimum throw to avoid drafts and floor dust
from being disturbed.
Even with the louvres set at maximum deflection, there
will be a severe draft when the unit is suspended too low.
Do not place the SD fans above plant machinery or high
obstacles.
Always ensure the model of fan is capable of
, multiply this by 2.
3
/h needed by the
3
square
2
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