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NEW GENERATION SERIES
ROOF MOUNTED FANS
D
© FANTECH
2016
D-16
RDE - downflow exhaust
RDS - downflow supply
RVE - vertical exhaust
RSS - smoke-spill
Fan diameter in cm
Fan speed, no. of poles
A =150
B = 250
C = 350
Aluminium blades,
A
GRP,
P
Nylon,
N
No. of blades
Blade pitch angle, deg.
Hub diameter code
D= 400
F = 550
G = 255
-
The heavy duty New Generation Series of axial roof units has
been designed for a wide range of free intake and ducted
applications. These exhaust fans are suitable for a wide range of
commercial and industrial applications for handling clean air
through to smoke-spill.
There are 9 sizes in the series extending from 315 to 1250mm
diameter.
Typical Applications
Can exhaust from a range of commercial and industrial
applications such as warehouses and factories with air
qualities ranging from clean air to toxic, noxious and corrosive
gases and smoke-spill.
Features
O
Robust, heavy duty construction.
O
New Generation downflow supply air units can also be
supplied.
O
Adjustable pitch impellers provide performances to suit a
wide range of applications.
O
Impellers can be GRP, aluminium, nylon or anti-static to suit
the application, GRP is standard.
O
Shutters are a standard component for the RVE
and RSS models and are an optional extra for the RDE
units (see
Special Notes
).
O
Can be mounted at angles up to 30
o
.
O
All standard motors are speed-controllable using variable
speed drives.
O
Can be used for free intake and ducted applications.
O
Wide choice of speeds available.
O
Multi-speed motors, as well as motors to meet Ex d, Ex e,
Ex nA and Ex tD Standards can be supplied.
O
For installations prone to high prevailing winds refer to
Special Notes.
Construction
Galvanised steel bases; cowls/wind bands are of plastic,
fibreglass or galvanised steel.
The RVE and RSS models are all steel construction.
Impeller blades can be GRP, aluminium, nylon or anti-static to
suit the application. GRP is standard.
Motors
Type - squirrel cage induction motors
Electricity supply - motors to suit a wide range of voltages and
frequencies can be supplied
Bearing - sealed-for life, ball
Speed-controllable using variable speed drives
See pages
O-3/4
for details on these motors
Motors with 2-speed windings, or to meet Ex d, Ex e, Ex nA and
Ex tD Standards, can be supplied
When fans are required for non-standard air applications this
must be nominated at the time of enquiry
Internal Thermal Protection
Thermistors can be provided on all motors except when
Standards specifically exclude their use.
Testing
Air flow tests to BS848:Part 1, 1980
Noise tests to BS848:Part2, 1985
Discharge damper fail-open latching
An additional requirement of AS/NZS1668.1:1998 with respect to
un-sprinklered buildings (300
o
C for 30mins) requires dampers to
fail-open during smoke spill operation.
The fail-open discharge damper latches come in two forms;
the first being a manual release type requiring manual closing
after the fan has been run. The second design, an electro-mechanical
type permits the shutter latch to release and close automatically
after the fan stops.
For advice on smoke-spill wiring requirements refer to
AS/NZS1668.1:1998.
See page
C-8
for details of the smoke-spill range.
Wiring Diagram
See pages
N-6/7
, diagrams
DD 1, 2, 3, 9
.
Special notes
The quick select envelope performance curves shown on pages
D-18/19
give a guide to fan size, noise level and speed.
Accurate selections, including comprehensive noise data, can
be obtained from your local Fantech office or from the Fans by
Fantech Product Selection Program. Refer to Fantech for
performances at speeds other than shown.
When shutters are fitted ensure the roof unit is mounted with the
shutter spindle pointing down the roof. When shutters are fitted
to the RDE models derate the performance by 15-20%. Where
prevailing winds are high we recommend the fitting of
Magloks®, see page
J-8
for details. For capacities greater than
shown for the New Generation Series refer to the HC and SS
series on pages
D-60/62
The New Generation RSS Series of smoke-spill fans has been
fully tested to meet the air performance and high temperature
requirements of Standards AS/NZS1668.1:1998 and
AS4429:1999.
DESCRIPTION
SMOKE-SPILL APPLICATIONS
HOW TO ORDER