
Energy Recovery Ventilator
Model MiniVent
• Commercial • Institutional
• 300 to 800 cfm
• Ideal for classroom ventilation
December
2004

MiniVent-450 & 750
The MiniV
ventilators used for commercial and institutional
applications that r
ventilation air. The compact design provides an
economical solution for individual spaces, such as
school classrooms and small offices.
The MiniVent is designed for indoor installations
and may be floor mounted or ceiling hung. A
removable panel enables easy access to filters
and enthalpy wheel. Pleated 1-inch deep filters
and backdraft dampers are standard.
ent-450 & 750 are energy recovery
equire 300 cfm to 800 cfm of
Typical Installation
The illustration shows a
MiniVent in a typical ceiling
hung installation.
Energy recovery wheels certified by the ARI Air-to-Air
Energy Recovery Ventilation Equipment Certification
Program in accordance with ARI Standard 1060.
Actual performance in packaged equipment may vary.
Certified Ratings are available in the Certified Product
Directory at http://www.ari.org/directories/erv
Outdoor air is drawn through
a model GRS roof mounted
gravity intake hood and preconditioned by the enthalpy
wheel. Outdoor air is then
supplied either to an air
handler or directly to the
space. Energy is recovered
from stale room air before it
is exhausted through a
model WC wall cap.
See opposite page for other
intake and discharge
accessories.
Exhaust Air
Intake and Discharge Locations
Outdoor Air
Outdoor air and
exhaust air intake
and discharge
locations are shown.
Both intake locations
are capable of being
elocated to suit
field r
installation needs
(see optional
locations).
2
Intake & Discharge Locations
Discharge
Intake
Intake
(Optional)
Outdoor Air
Pre-conditioned
Supply Air
Room Air
Exhaust Air
Intake & Discharge Locations
Discharge
Intake
Intake
(Optional)

Performance Data
MiniVent-450
RPM
EXTERNAL STATIC PRESSURE (in. wg)
0.125 0.250 0.375 0.500 0.625 0.750 0.875 1.00
Supply & Exhaust
1250 CFM 386 362 335 300 245 2.6
1680 CFM 542 512 480 442 402 352 294 227 3.6
Direct Drive
* Sones @
0.25 in. wg
MiniVent-750
RPM
0.125 0.250 0.375 0.500 0.625 0.750 0.875 1.00
Supply & Exhaust
EXTERNAL STATIC PRESSURE (in. wg)
Direct Drive
1250 CFM 693 678 657 631 597 559 527 497 5.9
1550 CFM 865 854 842 825 807 785 761 731 6.5
* Sone values are at a distance of 5 feet from the exhaust air intake.
Intake and Exhaust Accessories
Wall Mounted
Model BV
• Intake or exhaust
• Anodized aluminum
construction
• Built in aluminum
mesh insect screen
Model WC
• Exhaust only
• Aluminum construction
• Built in damper
Model GRS
• Intake or exhaust
• All aluminum exterior
construction
• Integral birdscreen
• For roof curb mounting
Roof Mounted
Model GRSF
• Intake or exhaust
• All aluminum exterior
construction
• Integral birdscreen
• Built in flashing flange
Other Accessories
Speed Control
A solid state speed control
is available for adjusting
airflow to desired volume.
One speed contr
supplied for each outdoor
air and exhaust air fan.
Requir
es a 4x4 handy box
by others.
ol is
Motion Detector - MiniVent-450 Only
Model MBW is a wall mounted passive infrared
motion detector that automatically turns on the
MiniVent when a change in temperatur
sensed. The MiniVent will automatically turn off
after the r
oom has been vacant past the
adjustable time delay setting of 1 minute to 20
minutes. The detector must be installed in the
line-of-sight of the subject personnel and requires
a 2x4 handy box to be supplied by others.
e is
* Sones @
0.25 in. wg
Timed Exhaust Fr
Control Kit
Timed Exhaust fr
includes an Outdoor Air Sensor
and Timer for field installation.
Timed Exhaust frost control turns
the supply blower power of
on using field adjustable timer
settings when outdoor air
temperatur
eshold.
thr
Timed Exhaust is appropriate for
climates with limited HVAC
system operation when outdoor
air temperatures are below 0°F.
ost contr
e falls below the frost
ost
ol kit
f and
DIMENSIONS
MiniVent
Model
450 40 29 20
750 46 36 22
All dimensions shown ar
ABC
e in inches.
Hanging Vibration
Isolators
ibration isolator kits ar
V
available for suspended
installations. Kits include
e necessary to
dwar
all har
mount one unit, with the
exception of threaded
ods to be supplied by
r
others. Brackets for
mounting vibration
isolators are factory
installed on the unit.
e
3

Typical Specifications
General:
Energy Recovery V
manufactured by Greenheck or approved equal,
provided all specifications are met. Units shall be
listed per ANSI/UL 1995, Heating and Cooling
Equipment. Energy transfer ratings of the energy
recovery wheel shall be ARI Certified. Performance
shall be as scheduled on plans.
Casing and Access:
Unit shall be constructed of G90 galvanized steel.
All components shall be easily accessible through
removable access panels. Access to filters and
energy wheel shall not require tools. Energy
recovery wheel shall be mounted in a slide-out
track for ease of inspection, removal and cleaning.
Housing shall be insulated with 1/2-inch insulation.
Outdoor air and exhaust air discharges shall have
integral backdraft dampers. Duct adapters shall be
factory installed on all four intake/discharge ports.
Intake Locations:
Both the outdoor air and exhaust air intakes shall
be designed for optional relocation in the field.
Alternate intake location on adjacent side of the
unit enables duct installation flexibility.
entilator shall be as
Silica gel desiccant shall be
permanently bonded to wheel
media to retain latent heat
recovery after cleaning. Wheels
with sprayed on desiccant
coatings are not acceptable.
Wheels with desiccant applied
after wheel formation are not
acceptable. Energy recovery
device shall transfer moisture
entirely in the vapor phase.
Energy recovery drive belt
material shall be high strength
urethane and shall be factory
installed in a pre-stretched state,
eliminating the need for field belt
tension adjustment. Link style belts are not
acceptable.
Fans and Motors:
Fans shall be double width, double inlet centrifugal
forward curved type. Fans shall be statically and
dynamically balanced. Fan motors shall be single
phase, thermally protected and be compatible for
use with speed controller.
Energy Recovery Wheel:
Wheel shall be of the enthalpy type for both
sensible and latent heat recovery, and be designed
to insure laminar flow. Energy transfer ratings must
be ARI Certified to Standard 1060 and bear the ARI
certification symbol for ARI Air-to-Air Energy
Recovery V
Program based on ARI 1060. Ratings “in
accordance with 1060” without certification are not
acceptable. Desiccant shall be silica gel for
maximum latent energy transfer. Wheel shall be
constructed of light weight polymer media to
minimize shaft and bearing loads. Polymer media
shall be mounted in a stainless steel rotor for
osion r
corr
entilation Equipment Certification
esistance.
Filters:
The outdoor air shall be filtered with a 1-in. deep,
30% effective disposable filter. Filter rack shall be
internal to the unit and factory installed.
Electrical:
All internal electrical components shall be factory
wired for single point power connection. All
electrical components shall be UL listed, approved
or classified where applicable and wired in
accordance with the National Electrical Code.
Ventilators shall be model MiniVent as
manufactured by Greenheck, in Schofield,
Wisconsin.
Our Warranty
Greenheck warrants this equipment to be free from defects in material and workmanship for a period of one year from the
purchase date. The energy recovery wheel is warranted to be free from defects in material and workmanship for a period of five
years from the purchase date. Any units or parts which prove defective during the warranty period will be replaced at our option
when returned to our factory, transportation prepaid. Motors are warranted by the motor manufacturer for a period of one year.
Should motors furnished by Greenheck prove defective during this period, they should be returned to the nearest authorized motor
service station. Greenheck will not be responsible for any removal or installation costs.
As a result of our commitment to continuous improvement, Greenheck reserves the right to change specifications without notice.
Greenheck P.O. Box 410 • Schofield, WI 54476-0410 • Phone (715) 359-6171 • greenheck.com
Copyright © 2004 Greenheck Fan Corp. • Catalog MiniVent RG Rev. 4 December 2004