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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.
This is easy to calculate:
Calculate the volume of the space in m
The resulting figure is the volume in m
SD-EC destratification fans.
4
B
Dimensional Data
SD3-EC SD5-EC SD7-EC SD10-EC
470
600
600
470
600
600
289
319
328
340
375
375
C. Thermostat
D. Outlet louvre frame assembly
2
, multiply this by 2.
3
/h needed by the
3
Select the SD-EC model based upon air output, throw of
the unit and height of the room. Then simply take the ca-
lulated air volume and divide by the air volume produced
by your selected SD-EC model. The resulting figure is the
C
qty needed for your application.
NOTE
Selecting an SD-EC model with the highest air vol-
ume is not nessecarily the best solution. It is important
to achieve uniform air distribution throughout the space,
for maximum comfort and reduced running costs.
Occasionally it will be nessecary to install more SD-EC
fans that calculations indicate to achieve uniform air dis-
800
tribution. In these scenarios, where possible, reduce the
800
model size and increase the quantity.
438
IMPORTANT
740
of being installed at the height you propose.
3.3 Positioning
Position the destratification fan preferably towards the
B
end of the throw or area that is not directly served by the
heaters throw.
A
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-EC 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-EC fans above plant machinery or
high obstacles.
Location examples:
floor surface.
Always ensure the model of fan is capable
square
2
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