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M
M-5
© FANTECH
2016
CONTROLLERS, VSD, SENSORS & RUN-ON TIMERS
SPEED CONTROLLERS SINGLE-PHASE MOTORS
The VA range is an electronic type
speed-controller which provides infinite
variation of fan speed from 100% down
to approximately 30% of full speed.
When used to control a number of
identical fans the sum of the full load
amps of all the connected fans must not
exceed 85% of the maximum rating of
the controller. The fans should be
identical.
Power consumption is reduced by up to
70%.
The motors must be designed for speed
control.
Warning
Check with our Sales Department before
using the VA controllers with run-on
timers.
Note
To minimise electronic hum from larger
PSC (Permanent Split Capacitor) motors,
a constant active is connected to the
start winding via the capacitor and the
run winding is regulated by the speed
controller. (4 wire connection)
A PSC motor is sometimes referred to as
a Capacitor Run motor.
70W
×
114H
×
51D
Recess
8.0
VA8.0
70W
×
114H
×
51D
70W
×
114H
×
36D
70W
×
114H
×
36D
25W
×
30H
×
50D
Recess
Recess
Recess
Bracket
5.0
2.0
2.0
VA5.0
VA2.8
VA2.0
VA2.0POT**
Dimensions, mm
Mounting
Max. Amps
Model Number
** The VA2.0POT unit is designed to be mounted within equipment or enclosures;
e.g. HB12E Fan Header Boxes, as well as Mixvent Series duct mounted fans. It will not fit in
a standard wall plate.
The VA range, being triac-type controllers, can cause an electronic hum particularly
at low speeds.
The VA range is generally suitable for use with any speed-controllable single-phase
motors. Ensure the motor amperage does not exceed the rating of the controller.
Enclosure rating - IP00
WIRING DIAGRAMS
TECHNICAL DATA
TYPE - VA
2.8
On/Off
Switch
Yes
Yes
Yes
No
Yes
LED
Power
Light
Yes
No
Yes
No
No