ASHRAE Journal - February 2021 - 58

Greenheck: Providing more new
products to meet your applications
Greenheck's expanding line of HVAC
products improve indoor air quality
and save energy. The following are
just a few of our recent product
introductions.

Two new models have been
added to Greenheck's line of
Dedicated Outdoor Air Systems
(DOAS) for high percentage and
100% outside air. Pre-engineered
rooftop ventilator models RV-75 and
RVE-150 with energy recovery offer
capacities up to 16,000 cfm, up to
50 tons of packaged cooling, and
up to 1200 mbh of indirect gas-ﬁred
heating. Featuring two-inch doublewall construction and R13 thermally

Model
RV-75

comprehensive line of DOAS units,
including models RV-110 and
RVE-180 with up to 18,000 cfm and
up to 70 tons of packaged cooling,
meet a wide range of heating, cooling,
dehumidiﬁcation, and ventilation
requirements.

Greenheck's new three-phase
Vari-Green® electronically
commutated (EC) motors accept
208-230V and 460V power supply and
are available in sizes ranging from 1 to
10 hp. Typical turndown is factory-set
at 75% and speed can be controlled
via an onboard dial or a 0-10 VDC
control signal. Low maintenance
Vari-Green motors run quieter and
cooler and offer higher efﬁciencies
compared to standard motors;
the three-phase Vari-Green motor
operates at IE5 efﬁciency levels. The
energy efﬁcient three-phase motor
is compatible with all Vari-Green
controls and other controls such as a
building automation system and has
an auxiliary contact for motor status
or damper actuation. The three-phase
Vari-Green motor can be ordered with
select sizes of Greenheck model SQ
inline fans, AER axial fans and models
G and CUE power roof ventilators.

broken foam insulation, both models
include a top-mounted condenser
and an upgraded controls platform
with a web user interface that
comes as standard. The factoryprogrammed, wired, and tested
controller can operate as a standalone unit or integrate with a Building
Management System (BMS).
Greenheck pre-engineered rooftop
units are factory-tested and can
be speciﬁed with a variety of
options including an optional
inverter compressor. Greenheck's

Greenheck direct drive square
inline fans now incorporate
mixed ﬂow wheel technology
for a unique combination of high
efﬁciency, low sound and ease of
installation in a square housing
design. AMCA certiﬁed for sound and
air performance, mixed ﬂow model
SQ is available in eight sizes, 16-33,

Model
SQ-16

with performance ranges up to 27,497
cfm and up to 3 in. wg. Model SQ is
available with a single-phase or threephase direct drive Vari-Green® motor
up to 10 hp for improved energy
efﬁciency and low maintenance. The
SQ's companion ﬂange connection
point allows the fan to easily slide
in and out of ductwork and the use
of totally enclosed style motors
eliminates the need for a motor
cover improving motor access.
For more information, contact your
nearby Greenheck representative
or visit greenheck.com

Three-Phase Vari-Green®
Electronically Commutated Motor

P.O. Box 410 * Schofield, WI 54476
715.359.6171 * greenheck.com
http://www.greenheck.com http://www.greenheck.com
ASHRAE Journal - February 2021

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