22
Vari-Green
®
Options
Features
1. Dial on Motor Control - A potentiometer (dial on
motor control) is mounted on the motor for easy
speed adjustment for system balance. Simply turn
the dial; there are no belts and pulleys to adjust.
2. Control Wire Inputs - the motor accepts a
0-10 VDC signal from Building Automated
Systems, Vari-Green controls or other
controls to adjust motor speed.
1
2
Model SE1
Greenheck’s electronically commutated (EC)
Vari-Green
®
(VG) motor combines motor
technology, controllability and energy-efficiency
into one single low maintenance unit. When combined
with Greenheck’s SE1 fans, the VG motor offers variable
volume capability and energy-efficiency without using a
variable frequency drive (VFD). The Vari-Green motor
has built in overload and temperature protections,
so it does not require a stand-alone motor starter
for protection.
Vari-Green
®
Controls
Transformer - 24V power from the existing line voltage
at the fan to the Vari-Green motor and controls. Dual
voltage primary (120/240V) transformer provided with
the fan.
Remote Dial - Allows for remote, manual airflow
adjustments. Wall plate with dial may be mounted in a
standard 2x4 inch electrical junction box.
Two Speed Control with Integral Transformer
Control allows motor RPM to be set at two
independent speeds (high or low). Meets minimum
airflow requirements with the ability to bump up
to high speed in an emergency or meet maximum
airflow requirements, or reset down to low for energy
conservation.
Constant Pressure Control - Control Vari-Green motor
via static (variable volume) or velocity (constant CFM)
pressure on the inlet or outlet side of the fan. Optional,
duct or room probes for use in:
• Multifamily structures - Apartments, condos, hotels;
dryers, residential kitchens and bathrooms.
• Institutional facilities - Schools, prisons, multistory
office buildings; bathrooms.
Air Quality - VOC - Control a Vari-Green motor via
changes in volatile organic compounds (VOC’s). VOC’s
are gasses that are emitted from humans, building
materials, perfumes, foods, and furniture off-gassing.
Range is 0-2000 CO
2
PPM equivalent.
• Institutional facilities - Schools, court houses,
hospitals; bathrooms, waiting rooms, cafeterias.
• Commercial buildings - Office spaces, conference
rooms, bathrooms, break rooms.
Air Quality - Temperature and humidity -
Control a Vari-Green motor via changes in temperature,
humidity, or both. Range is 32 to 120˚F and 0 to 100%
relative humidity.
• Multifamily structures - Apartments, condos, hotels;
bathrooms, utility rooms
• Commercial buildings - Office buildings, office
spaces, conference rooms, utility rooms, bathrooms.
50/60 Hz Motor Information
HP RPM Volts FLA Enclosure
1/6 1725 115/230 3.1 TENV
1/4 1725 115/230 3.9 ODP
1/2 1725 115/230 6.2 ODP
1/2 2500 115/230 6.5 ODP
3/4 1725 115/230 10.1 ODP
3/4 2200 115/230 11.3 ODP
1 1725 115/230 12.4 ODP
1 1725 115/208-230 12.0 / 6.0 TEFC
2 1725 208-230 12.0 TEFC
Vari-Green
®
Motors
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