GAMMA EC SUPPLY SERIES
ROOF MOUNTED FANS
D
© FANTECH
2016
D-34
The Gamma EC Series of centrifugal supply air roof units can be
used for supplying fresh air to an air handling unit or to an air
conditioning system. They incorporate the latest state of the art,
energy saving EC motor technology and are most efficient
where conditions vary during the course of the day.
They feature integrated infinitely variable speed control and
eliminate the need for external VSDs, current overloads and
motor phase protection.
The Gamma EC Supply Series is a simple "plug and play"
system which means installers do not need to have specialised
control programming knowledge.
Matching sensors can easily be connected to monitor the
ambient conditions in a space and provide real time feedback
to the fan. The fan's on-board microprocessor can adjust the
speed and therefore modulate the ventilation rate to match the
specific requirements of the area.
They are fitted with bird mesh which prevents objects entering
building or interrupting motor operation and are available in 315,
355, 450, 560 and 630mm fan sizes.
Typical Applications
Ideal for supplying fresh air to an air handling unit
or to an air conditioning system. Also suitable where make-up
air or positive pressure is required in the ventilated space.
Features
O
EC motor features reverse polarity protection, locked rotor
protection and soft start.
O
No additional protection such as contactors are required.
O
All motor sizes can be pre-configured to suit specific
sensors and specific applications, and are supplied
standard with 0-10V control input.
O
A full range of sensors are available including differential
pressure, humidity, temperature, air velocity and pollutant.
O
Can be run as an independent ventilation source or
integrated into most building management systems.
O
Corrosion-proof, robust construction.
O
High performance backward-curved centrifugal impellers
fitted.
O
Can be mounted at angles up to 30°.
Construction
Cowls are of UV-stabilised plastic.
Steel components have a corrosion resistant finish.
Impellers are backward-curved centrifugal design and are of
high performance composite material.
Bird-mesh guards are fitted as standard.
Shutters cannot be fitted.
Motors
Type - electronic commutated (EC) motor.
Electricity supply - 200-277V single-phase, 50/60Hz for 315 to
450mm sizes.
- 380-480V three-phase, 50/60Hz for 560
and 630mm sizes.
Bearings - sealed-for-life, ball.
See page
O-7
for details on motors.
Integrated EC Controller providing infinite speed control.
Internal Thermal Protection
Integral thermal overload protection is supplied as standard.
Testing
Air flow tests to ISO 5801: 2007.
Noise tests to ISO 3744:2010.
Wiring Diagram
Scan the QR code on page
D-35
to view wiring diagrams online.
Special Note
All Gamma EC supply models can be pre-configured to suit
specific sensors and specific applications. Please advise
Fantech of these parameters at the time of order.
EC motors should be directly connected to their appropriate
AC supply. EC motors should not be regularly power cycled.
ANCILLARY EQUIPMENT
Controllers & Sensors
Ref. Section M-1
DCV-CU - Premium Module
on-board control pack
Ref. M-18
DESCRIPTION
SUGGESTED SPECIFICATION
The roof ventilators shall be of the Gamma EC Series supply air
type as designed and manufactured by Fantech Pty Ltd and be
of the model numbers shown on the schedule/drawings.
Impellers shall be made from high performance composite
material. They shall be of backward-curved centrifugal design
and driven by EC external rotor motors with integrated
EC Controller and integral thermal overload protection. They
shall be pre-configured to suit the selected sensors and the
required applications.
The cowls shall be of the downflow design and manufactured
from UV-stabilised plastic. Steel components shall be corrosion
protected.
All models shall be fully tested as a complete assembled unit to
ISO5801:2007 for air flow and ISO 3744:2010 for noise.
HOW TO ORDER