Greenheck MiniVent User Manual
Document 459023
Model MiniVent
®
Energy Recovery Ventilator
Installation, Operation and Maintenance Manual
Please read and save these instructions for future reference. Read carefully before attempting to assemble, install,
operate or maintain the product described. Protect yourself and others by observing all safety information. Failure
to comply with instructions could result in personal injury and/or property damage!
Energy recovery wheels are certified by the AHRI Air-to-Air Energy Recovery Ventilation Equipment Certification
Program in accordance with AHRI Standard 1060. Actual performance in packaged equipment may vary.
Certified Ratings are available in the Certified Product Directory at www.ahridirectory.org
General Safety Information
Only qualified personnel should install this system.
Personnel should have a clear understanding of these
instructions and should be aware of general safety
precautions. Improper installation can result in electric
shock, possible injury due to coming in contact with
moving parts, as well as other potential hazards. Other
considerations may be required if high winds or seismic
activity are present. If more information is needed,
contact a licensed professional engineer before moving
forward.
DANGER
Always disconnect power before working on or near
this equipment. Lock and tag the disconnect switch or
breaker to prevent accidental power up.
CAUTION
When servicing the unit, the internal components may
be hot enough to cause pain or injury. Allow time for
cooling before servicing.
CAUTION
Precaution should be taken in explosive atmospheres.
1. Follow all local electrical and safety codes, as well as
the National Electrical Code (NEC), the National Fire
Protection Agency (NFPA), where applicable. Follow
the Canadian Electrical Code (CEC) in Canada.
2. All moving parts must be free to rotate without
striking or rubbing any stationary objects.
3. Unit must be securely and adequately grounded.
4. Do not spin fan wheel faster than maximum
cataloged fan RPM. Adjustments to fan speed
significantly affects motor load. If the fan RPM is
changed, the motor current should be checked to
make sure it is not exceeding the motor nameplate
amps.
5. Do not allow the power cable to kink or come in
contact with oil, grease, hot surfaces or chemicals.
Replace cord immediately if damaged.
6. Verify that the power source is compatible with the
equipment.
7. Never open access doors to the unit while it is
running.
®
Energy Recovery Ventilator 1
Receiving
Upon receiving the product check to ensure all items
are accounted for by referencing the delivery receipt or
packing list. Inspect each crate or carton for shipping
damage before accepting delivery. Alert the carrier
of any damage detected. The customer will make
a notation of damage (or shortage of items) on the
delivery receipt and all copies of the bill of lading which
is countersigned by the delivering carrier. If damaged,
immediately contact your Greenheck Representative.
Any physical damage to the unit after acceptance is not
the responsibility of Greenheck Fan Corporation.
Unpacking
Verify that all required parts and the correct quantity
of each item have been received. If any items are
missing, report shortages to your local representative to
arrange for obtaining missing parts. Sometimes it is not
possible that all items for the unit be shipped together
due to availability of transportation and truck space.
Confirmation of shipment(s) must be limited to only
items on the bill of lading.
Handling
Units are to be rigged and moved by the lifting brackets
provided or by the skid when a forklift is used. Location
of brackets varies by model and size. Handle in such
a manner as to keep from scratching or chipping the
coating. Damaged finish may reduce ability of unit to
resist corrosion.
Storage
Units are protected against damage during shipment. If
the unit cannot be installed and operated immediately,
precautions need to be taken to prevent deterioration of
the unit during storage. The user assumes responsibility
of the unit and accessories while in storage. The
manufacturer will not be responsible for damage during
storage. These suggestions are provided solely as a
convenience to the user.
INDOOR — The ideal environment for the storage of
units and accessories is indoors, above grade, in a
low humidity atmosphere which is sealed to prevent
the entry of blowing dust, rain, or snow. Temperatures
should be evenly maintained between 30°F (-1°C)
and 110°F (43°C) (wide temperature swings may
cause condensation and “sweating” of metal parts).
All accessories must be stored indoors in a clean, dry
atmosphere.
Remove any accumulations of dirt, water, ice, or snow
and wipe dry before moving to indoor storage. To avoid
“sweating” of metal parts allow cold parts to reach room
temperature. To dry parts and packages use a portable
electric heater to get rid of any moisture build up. Leave
coverings loose to permit air circulation and to allow for
periodic inspection.
The unit should be stored at least 3½ in. (89 mm) off the
floor on wooden blocks covered with moisture proof
paper or polyethylene sheathing. Aisles between parts
and along all walls should be provided to permit air
circulation and space for inspection.
OUTDOOR — Units designed for outdoor applications
may be stored outdoors, if absolutely necessary. Roads
or aisles for portable cranes and hauling equipment are
needed.
The fan should be placed on a level surface to prevent
water from leaking into the unit. The unit should be
elevated on an adequate number of wooden blocks so
that it is above water and snow levels and has enough
blocking to prevent it from settling into soft ground.
Locate parts far enough apart to permit air circulation,
sunlight, and space for periodic inspection. To minimize
water accumulation, place all unit parts on blocking
supports so that rain water will run off.
Do not cover parts with plastic film or tarps as these
cause condensation of moisture from the air passing
through heating and cooling cycles.
Inspection and Maintenance during
Storage
While in storage, inspect fans once per month. Keep a
record of inspection and maintenance performed.
If moisture or dirt accumulations are found on parts,
the source should be located and eliminated. At each
inspection, rotate the fan wheel by hand ten to fifteen
revolutions to distribute lubricant on motor. Every three
months, the fan motor should be energized. If paint
deterioration begins, consideration should be given to
touch-up or repainting. Fans with special coatings may
require special techniques for touch-up or repair.
Machined parts coated with rust preventive should be
restored to good condition promptly if signs of rust
occur. Immediately remove the original rust preventive
coating with petroleum solvent and clean with lint-free
cloths. Polish any remaining rust from surface with
crocus cloth or fine emery paper and oil. Do not destroy
the continuity of the surfaces. Wipe thoroughly clean
with Tectyl
hard to reach internal surfaces or for occasional use,
consider using Tectyl® 511M Rust Preventive or WD-40®
or the equivalent.
REMOVING FROM STORAGE — As units are removed
from storage to be installed in their final location, they
should be protected and maintained in a similar fashion,
until the equipment goes into operation.
Prior to installing the unit and system components,
inspect the unit assembly to make sure it is in working
order.
1. Check all fasteners, set screws on the fan, wheel,
bearings, drive, motor base, and accessories for
tightness.
2. Rotate the fan wheel(s) by hand and assure no parts
are rubbing.
®
506 (Ashland Inc.) or the equivalent. For
Energy Recovery Ventilator2
®
Table of Contents
Dimensional Data and Weights
Dimensional Data and Weights ...................3
Service Clearances and Access Panel Locations .....4
Intake and Discharge Locations ..................4
Installation
Hang Mounting with Hanging Vibration Isolators ...5
Base Mounting with Base Vibration Isolators ......6
Duct Connections ...........................6
Electrical Connections .........................7
Frost Control ...............................7
Wiring Schematics .......................... 8-9
System Start-Up
Pre-Start-Up Checklist ......................10
Unit Documentation Record ..................10
Unit Start-Up Checklist ......................11
General ..................................12
Energy Wheel .............................12
Blower Wheel Rotation ......................12
Fan RPM .................................12
Motor ....................................12
Routine Maintenance
General ..................................12
Fasteners and Set Screws ...................12
Removal of Dust and Dirt ....................12
Internal Filters .............................12
Energy Wheel Maintenance ................ 12-13
Troubleshooting ..............................14
Optional Vari-Green
®
EC Motors ................15
Maintenance Log ...................... Backcover
Our Commitment ...................... Backcover
Discharge
Intake
Side "A"
Discharge
Side "A"
Front View
A
Side "B"
Back View
MiniVent A B C
450
750
All dimensions are in inches.
DISCHARGE
SIDE "A"
40.2 28.6 19.9 160
45.8 35.3 23.8 240
D
G
E
INTAKE
SIDE "A"
F
Intake
Side "B"
Energy Wheel
C
B
Weight
(lbs.)
K
L
J
H
INTAKE
SIDE "B"
N
M
FRONT VIEW
P
E
F
D
G
BACK VIEW
Q
DISCHARGE
SIDE "B"
MiniVent D E F G H J K L M N P Q
450
750
All dimensions are in inches.
Intake and Discharge positions are not labeled because
they are configurable by rotation of the unit about the
vertical axis. The supply and exhaust can be on either
side, but the intake/discharge relationship must be
maintained. For example, Outdoor Air Intake = Intake
Side “B”/Outdoor Air Discharge = Discharge Side “B”.
The preferred configuration is to have the energy wheel
motor in the exhaust airstream.
10 8 12 6 4.3 1.4 6 1.5 6 1 4.8 3.4
10 10 18 7 4 2.2 5.1 1.5 5.1 1.1 4 1.5
®
Energy Recovery Ventilator 3
Service Clearances and Access
Panel Locations
Recommended Service Clearances
The MiniVent requires minimum clearances to perform
routine maintenance, such as filter replacement, energy
wheel cassette and fan inspection. Fan and motor
assemblies, energy recovery
wheel cassette and filter
sections are provided with
a service door or panel for
proper component access.
MiniVent A B
450
750
All dimensions are in inches.
25 15
31 21
Intake and Discharge Locations
Intake and discharge locations are shown. Both intake
locations are capable of being field relocated to suit
installation needs (see optional locations).
Intake Side “A” (optional)
Access Panel Locations
1. • Outdoor and exhaust fans and motor
• Electrical connection
2. • Energy wheel cassette
• Internal filters
1
B
A
Discharge
Side “B”
1
Discharge
Side “A”
Intake
Side “A”
2
2
Cassette
Slides Out
Intake
Side “B”
Discharge
Side “A”
Intake
Side “A”
Discharge
Side “B”
Intake
Side “B”
Intake Side “B” (optional)
Changing the discharge location
Step 1 - Remove the
metal cover for optional
intake by unfastening the
four sheet metal screws
holding it in place.
Step 2 - Hand bend
flanges out to form a
duct collar in the newly
uncovered intake opening.
Step 3 - Hand bend
flanges in on original intake
and replace metal cover
removed in Step 1.
Intake
Cover
Intake Duct
Collar
Energy Recovery Ventilator4
®
Installation
The system design and installation should follow
accepted industry practice, such as described in the
ASHRAE Handbook and SMACNA.
Minimum service clearance should be provided on
the side of the unit for routine service and component
removal should it become necessary.
Before beginning installation see page 3 for detail on
appropriate service clearances.
Hang Mounting with Hanging Vibration
Isolators
• The hanging isolator kit includes four (4) isolators
and required hardware.
• Locate the support rods as shown in the drawing.
• Assemble each isolator as shown.
B
A
C
3/8-inch threaded rod,
provided by others
Nut
Hanger bracket,
factory-mounted
Small flat washer
Big flat washer
Isolator
Big flat washer
Small flat washer
Lock washer
Nut
Hanging Vibration Isolator Assembly
MiniVent-450
Nut
Hanger bracket,
factory-mounted
1/2-inch threaded rod,
provided by others
Lock Washer
Flat Washer
Isolator
Flat Washer
Lock Washer
Nut
MiniVent A B C
450
750
All dimensions are in inches.
37.6 26.4 19.9
43.2 33 23.8
Electrical and Fan Access Panel
(underside)
Hanging Vibration Isolator Assembly
MiniVent-750
®
Energy Recovery Ventilator 5
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