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E
SIGMA SERIES
CENTRIFUGAL FANS; SWSI & DWDI
E-2
© FANTECH
2016
The single-width, forward-curved centrifugal fans shall be of the
Sigma Series as supplied by Fantech Pty Ltd.
The impellers shall be of forward-curved design, constructed
from galvanised steel and driven by a speed-controllable,
single-phase, external rotor motor with integral thermal
protection. The housings are of pressed, galvanised steel.
All models shall be fully tested to NFX 10-200 for air flow.
VA - Speed controller
Ref.
M-5
B
F
C
E
A
D
Model
Number A B C D E F
App.
wt. kg
2GRE120
68 78 172 180 89 100 2.1
2GRE160
95 95 241 267 110 115 3.7
Dimensions, mm
SUGGESTED SPECIFICATION
HOW TO ORDER
DIMENSIONS
ANCILLARY EQUIPMENT
TECHNICAL DATA
Select the model that will deliver at least the amount
of air required
If the performance you require is not shown, please contact our Sales Engineers.
Model
Number
Fan
Speed
rev/sec
Avg.
dB(A)
@ 3m Watts Amps
Max.
Amb.
°
C
2GRE120
37
50
75
0.34 50
2GRE160
33
53
244 1.07 50
Single-phase
DESCRIPTION
The Sigma Series of forward-curved centrifugal fans is ideal
for handling relatively low air flows at quite high pressures.
Typical Applications
Applications where medium air flows are required but system
pressures are relatively high such as ovens and switch boards.
Features
O
Quality single-width, single-inlet housings.
O
Can be easily speed-controlled.
O
High strength galvanised steel housing.
O
Can be mounted at any angle.
Construction
Housings are of pressed, galvanised steel
Impellers are galvanised, forward-curved design
Motors
Type - external rotor, squirrel cage induction motor.
Electricity supply - 230V, single-phase, 50/60Hz.
Bearings - sealed-for-life, ball.
Speed-controllable.
Motor protection IP44.
See pages O-2/3 for details on these motors.
Internal Thermal Protection
Auto-reset type fitted as standard
Testing
Air flow test to NFX 10-200
Wiring Diagram
See page N-8, diagram ER4
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to view more
information online.