Greenheck MiniVent-450 Installation Manual

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Part #459023
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Energy Recovery Ventilators
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!
Model MiniVent-450 & 750
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 Electric 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.
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Receiving
Upon receiving the product, check to make sure all items are accounted for by referencing the bill of lading to ensure all items were received. Inspect each crate for shipping damage before accepting delivery. Notify the carrier if any damage is noticed. The carrier will make notification on the delivery receipt acknowledging any damage to the product. All damage should be noted on all the copies of the bill of lading which is countersigned by the delivering carrier. A Carrier Inspection Report should be filled out by the carrier upon arrival and reported to the Traffic Department. If damaged upon arrival, file claim with carrier. 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 provided lifting points or fork lifting points (see page 4). Handle each piece in such a way as to keep from scratching or chipping the coating. Damaged finish may reduce ability of the 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.
Inspection and Maintenance during Storage
While in storage, inspect units 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 all moving components by hand ten to fifteen revolutions to distribute lubricant on motor and bearings. If paint deterioration begins, consideration should be given to touch-up or repainting. Units 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 clean thoroughly with Tectyl® 506 (Ashland Inc.) or the equivalent. For hard to reach internal surfaces or for occasional use, consider using Tectyl® 511M Rust Preventive or WD-40® or the equivalent.
Table of Contents
General Safety Information . . . . . . . . . . . . . . 2
Receiving, Handling, Storage . . . . . . . . . . . . .2
Dimensional Data and Weights . . . . . . . . . . . .3
Service Clearances and Access Panel Locations . . 3
Intake and Discharge Locations . . . . . . . . . . . 4
Installation Hang Mounting with Hanging Vibration Isolators 4 Base Mounting with Base Vibration Isolators . . .5
Duct Connections . . . . . . . . . . . . . . . . . 5
Electrical Connections . . . . . . . . . . . . . . . . 6
Wiring Schematics
Standard Wiring Schematic . . . . . . . . . . . . 6
MiniVent-450 Motion Sensor. . . . . . . . . . . .6
Independent Fan Control - Variable Speed . . . . 7
Timed Frost Control . . . . . . . . . . . . . . . . 7
Timed Frost Control with Speed Controllers . . . 7 System Start-Up
General . . . . . . . . . . . . . . . . . . . . . . . 8
Energy Wheel . . . . . . . . . . . . . . . . . . . .8
Blower Wheel Rotation . . . . . . . . . . . . . . .8
Fan RPM . . . . . . . . . . . . . . . . . . . . . . 8
Motor . . . . . . . . . . . . . . . . . . . . . . . . 8
Routine Maintenance
General . . . . . . . . . . . . . . . . . . . . . . . 9
Fasteners and Set Screws . . . . . . . . . . . . . 9
Removal of Dust and Dirt . . . . . . . . . . . . . 9
Internal Filters . . . . . . . . . . . . . . . . . . . 9
Energy Wheel Maintenance . . . . . . . . . . 9-10
Unit Documentation Record . . . . . . . . . . . . 10
Troubleshooting . . . . . . . . . . . . . . . . . . . 11
Maintenance Log . . . . . . . . . . . . . .Backcover
Warranty . . . . . . . . . . . . . . . . . . .Backcover
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Dimensional Data and Weights Service Clearances and Access
K
L
H
J
P
Q
E
G
E
F
F
D
D
Outdoor Air
Discharge
Exhaust
Discharge
Outdoor Air
Intake
Front View
K
L
H
J
E
G
F
D
Outdoor Air
Discharge
Outdoor Air
Intake
Front View
Outdoor Air
Intake
Exhaust Discharge
Back View
Outdoor Air Discharge
Energy Wheel
A
Front View
B
MiniVent A B C
450 40 29 18 150
750 46 36 22 210
All dimensions are in inches.
Exhaust Intake
C
Weight
(lbs.)
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.
Access Panel Locations
1. •Outdoorandexhaustfansandmotor
•Electricalconnection(115volt)
2. •Energywheelcassette
•Internallters
MiniVent A B
450 25 15 750 31 21
All dimensions are in inches.
K
Outdoor Air
G
D
Outdoor Air
Discharge
J
H
E
Intake
F
L
1
B
A
2
Front View
N
Exhaust
Intake
M
F
G
E
Back View
P
Exhaust
Discharge
D
Exhaust Discharge
Q
Exhaust Intake
1
Cassette
Slides Out
2
Supply Discharge
Supply Intake
MiniVent D E F G H J K L M N P Q
3
450 10 8 12 6 4
8 17⁄8 6 1 6 1 31⁄81⁄8
750 9 10 18 7 33⁄4 13⁄4 51⁄8 1 51⁄8 1 33⁄4 13⁄8
All dimensions are in inches.
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Intake and Discharge Locations
Flat Washer
Lock Washer
Nut
Nut
Flat Washer
Lock Washer
Hanger Bracket, factory mounted
Isolator
Threaded Rod, provided by others 3/8 inch (MiniVent-450) 1/2 inch (MiniVent-750)
Installation
Intake and discharge locations are shown. Both intake locations are capable of being field relocated to suit installation needs (see optional locations).
Outdoor Air
Discharge
Exhaust Air
Intake
Intake (optional)
Discharge
Intake
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.
• Thehangermountingbracketsarefactory
mounted.
• Locatethesupportrodsasshowninthedrawing.
• Assembleeachisolatorasshown.
A
B
Intake (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.
Remove the intake duct collar by unfastening the sheet metal screws holding it in place.
Step 2 - place the duct collar over the newly uncovered intake opening.
Fasten the intake duct collar in place.
Place the metal cover over the original intake and fasten into place. Be sure that the corner angle fits correctly around the unit corner.
Intake Cover
Intake Duct
Collar
MiniVent A B C
7
450 37 750 43
All dimensions are in inches.
8 267⁄8 20
3
8 327⁄8 24
Isolator Assembly
C
Electrical and Fan Access Panel (underside)
4
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Base Mounting with Base Vibration
3/8 inch Bolt
Flat Washer
Lock Washe
r
Isolator
Base Mounting Bracket
3/8 inch Bolt
Flat Washer
Lock Washe
r
Isolator
Base Mounting Bracket
Base Mounting Bracket
Isolation
• Thebaseisolatorskitincludesfour(4)isolators, four (4) brackets and required hardware.
• Removethehangingbracketsfromeachcornerof
the MiniVent. These brackets are shipped mounted from the factory. Replace with the base brackets provided.
• RotatetheMiniVent180degrees,sotheelectrical
and fan component panel is accessible from the top. The corners, where the brackets are fastened, are now closest to the mounting surface.
• Assembleandmounttheisolatorsasshowninthe
figures below.
Note: The hanging and base mounting brackets are fastened to the same unit corners.
Duct Connections
Examples of good and poor fan-to-duct connections are shown below. Airflow out of the fan should be directed straight or curve the same direction as the fan wheel rotates. Poor duct installation will result in low airflow, loud noise and excessive vibrations.
4x Wheel Diameter
MiniVent
POOR
Less
than 4x Wheel Diameter
Recommended Discharge Duct Size and Length
GOOD
GOOD
Electrical
Fan Access Panel
and
Isolator Assembly
MiniVent
ERV
Blower Size
Duct
Size
450 8 10 x 8 32
750 10 10 x 10 40
All dimensions are in inches.
Straight Duct
Length
Assembled and Mounted Isolator Detail
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Electrical Connections
Wiring Schematics
Before connecting power to the unit, read and understand the following instructions and wiring diagrams. Complete wiring diagrams are attached inside the blower door of the unit.
All wiring should be done in accordance with the National Electrical Code ANSI/NFPA 70 latest edition and any local codes that may apply. In Canada, wiring should be done in accordance with the Canadian Electrical Code. The equipment must be properly grounded.
CAUTION
If any of the original wire must be replaced, the replacement wire must have a temperature rating of at least 105ºC.
DANGER
High voltage electrical input is required for this equipment. This work should be performed by a qualified electrician.
Electrical Connection Location
MiniVent A B
450 12.5 22.0
750 15.5 30.0
All dimensions are in inches.
B
Electrical Connection
A
CAUTION
Unit shall be grounded in accordance with the National Electrical Code (NEC).
Standard Wiring Schematic
115 VOLT INPUT POWER
(GROUND)
(NEUTRAL)
(HOT)
SWITCH BY OTHERS
M3
M1 Energy Wheel Motor M2 Exhaust Blower Motor M3 Supply Blower Motor
INTERNAL JUNCTION BOX
M1
M2
MiniVent-450 Motion Sensor Wiring
Model MBW is a wall mounted passive infrared motion detector that automatically turns on the MiniVent when a change in temperature is sensed. The MiniVent will automatically turn off after the room had been vacant past the adjustable time delay setting of 1 minute to 20 minutes. The detector must be installed in the line­of-sight of the subject personnel and requires a 2x4 handy box to be supplied by others.
Wheel and Filter Access
Sequence for wiring MiniVent unit:
1. The unit’s nameplate contains the voltage and total amperage required. The wire supplying power to the unit should be sized accordingly.
2. The main power line should be connected to the appropriate leads in the unit.
Power may be routed to the MiniVent through
the opening on the underside of the unit. The locations for the opening are provided in the figure to the right.
3. Refer to the wiring diagrams in this manual or in the unit for controlling the MiniVent.
115 VOLT INPUT POWER
(NEUTRAL)
(HOT)
(GROUND)
M3
FACTORY WIRING
FIELD WIRING
INTERNAL JUNCTION BOX
M1
M2
(GROUND)
M1 Energy Wheel Motor M2 Exhaust Blower Motor M3 Supply Blower Motor
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Independent Fan Control — Variable Speed
Timed Exhaust Frost Control with Speed Controllers
115 VOLT INPUT POWER
(HOT) (NEUTRAL) (GROUND)
VARIABLE SPEED
CONTROL (FURNISHED)
VARIABLE SPEED
CONTROL (FURNISHED)
FACTORY WIRING
FIELD WIRING
ON OFF
ON OFF
M1 Energy Wheel Motor M2 Exhaust Blower Motor M3 Supply Blower Motor
INTERNAL JUNCTION BOX
REMOTE PANEL
115 VOLT INPUT POWER
(HOT)
R
B
W
TEMPERATURE
TIMER
CONTROLLER
A1 15
B1
0.6
0.8
1.0
0.4
0.2
0
0.6
0.8
0.4
1.0
0.2
0
16
A218
M1
M2
(NEUTRAL)
(GROUND)
12
INTERNAL JUNCTION BOX
1
3
SPEED CONT.
1
4
SPEED CONT.
M1
M2
M3
M3
M1 Energy Wheel Motor M2 Exhaust Blower Motor M3 Supply Blower Motor
Timed Exhaust Frost Control
REMOTE PANEL
115 VOLT INPUT POWER
TIMER
R
B
W
TEMPERATURE CONTROLLER
A1
15B1
0.6
0.8
1.0
0.4
0.2
0
0.6
0.8
1.0
0.4
0.2
0
16 A2
18
(HOT)
2
(GROUND)
(NEUTRAL)
1
1
3
1
4
M1 Energy Wheel Motor M2 Exhaust Blower Motor M3 Supply Blower Motor
INTERNAL JUNCTION BOX
M1
M2
M3
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System Start-Up
Forward Curved
Airflow
R
o
t
a
t
i
o
n
WARNING
Do not operate energy recovery ventilator without the filters and birdscreens installed. They prevent the entry of foreign objects such as leaves, birds, etc.
Do not remove access panels or other components while standing on a ladder or other unsteady base. Access panels and components are heavy and serious injury may occur.
For proper unit function and safety, follow everything in this startup procedure in the order presented. Startup is to be done after electrical connections are complete.
SPECIAL TOOLS
•Voltmeter
•Inclinemanometerorequivalent
•Tachometer
•Amperagemeter
General
Check all fasteners and set screws for tightness. This is especially important for bearings and fan wheels Also, if dampers are not motorized, check that they open and close without binding.
Check Voltage
Before starting the unit compare the supplied voltage with the unit’s nameplate voltage and the motor voltage.
Energy Recovery Wheel
First, follow the instructions on page 9 for pulling the energy recovery cassette halfway out of the unit.
Air Seals — turn the energy recovery wheel by hand to verify free operation. Check that the air seals, located around the outside of the wheel and across the center (both sides of wheel), are secure and in good condition.
Air seals which are too tight will prevent proper rotation of the energy recovery wheel. Recheck the air seals for tightness. Air seal clearance may be checked by placing a sheet of paper, like a feeler gauge, against the wheel face. To adjust the air seals, loosen all eight seal retaining screws. These screws are located on the bearing support that spans the length of the cassette through the wheel center. Tighten the screws so the air seals tug slightly on the sheet of paper as the wheel is turned.
Replace cassette into unit, plug in wheel drive, replace access door and apply power. Observe that the wheel rotates freely. If wheel does not rotate or is binding, remove the cassette; instructions provided on page 9.
Check Blower Wheel Rotation
First, hand rotate the blower to ensure that the wheel is not rubbing against the scroll. If the blower is rotating in the wrong direction, the unit will move some air but not perform properly.
To check the rotation, open the blower access panel, which is labeled either supply or exhaust, and run the blower momentarily to determine the rotation.
Forward Curved
Air Volume Check and Measurement
Along with the building balance, the unit’s airflow (cfm) should be measured and compared with its rated air volume. The MiniVent is direct drive, therefore balancing dampers or speed controls are required for airflow balancing. Air volume measurement must be conducted with access doors on the unit.
The most accurate way to measure the air volume is by using the pitot traverse method in the ductwork away from the blower. Other methods can be used but should be proven and accurate.
To adjust the air volume, change the fan rpm or the system static pressure. See Troubleshooting section in this guide.
With all access panels on the unit, compare measured amps to the motor nameplate full load amps and correct if overamping.
Measure Motor Voltage, Amperage and Fan RPM
All access doors must be installed, run the measurement leads through the provided electrical access hole in the bottom access panel of the MiniVent. Measure and record the input voltage and motor amperage(s).
To measure the fan rpm, the blower door will need to be removed. Minimize measurement time because the motor may overamp with the door removed. Do not
operate units with access doors/panels open as the motors will overload.
With all access panels on the unit, compare measured amps to the motor nameplate full load amps and correct if overamping.
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Routine Maintenance
WARNING
Disconnect all electrical power to the MiniVent prior to inspection or servicing. Failure to comply with this safety precaution could result in serious injury or death. Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death. Read the installation, operating, and maintenance instructions thoroughly before installing or servicing this equipment.
After the MiniVent has been put into operation, an annual inspection and maintenance program should be set-up to preserve reliability and performance.
Include the following items in this program:
•General  •Fastenersandsetscrews  •Removalofdustanddirt  •Filtermaintenance  •Energywheelcassette
General
The MiniVent energy recovery ventilator requires very little maintenance. However, small problems left unchecked, over time, could lead to loss of performance or early motor failure. We recommend that the unit be inspected once or twice a year.
The motor should be checked for lubrication at this time. Lubricate only those motors which have an oil hole provided. A few drops of all-purpose oil (SAE 20) will be sufficient.
Fasteners and Set Screws
Any fan vibration has a tendency to loosen mechanical fasteners. A periodic inspection should include checking all fasteners and set screws for tightness. Particular attention should be paid to set screws attaching the fan wheel to the shaft and the shaft to the bearings. Loose bearing set screws will lead to premature failure of the fan shaft.
Removal of Dust and Dirt
The fan motor and wheel(s) should be checked for dust and dirt accumulation. Dirt buildup clogs cooling openings on the motor housing and causes motor overheating. Dirt buildup can contaminate bearing lubricant and collect on fan wheel blades causing loss of performance or premature failure. Cleaning can be accomplished by brushing off any dust that may have accumulated. Under no circumstances should motors or bearings be sprayed with steam or water. Even filtered units can accumulate build up and should be checked when cleaning filters.
Maintenance to these components is achieved through the provided access panels.
Internal Filter Maintenance
Opening the access panels labeled “Filter Access” provides access to the oneinch deep, pleated 30% efficient filters. These filters should be checked regularly and cleaned or replaced as needed.
MiniVent
450 14 x 20 2 750 16 x 20 2
Internal
Filter Size
Quantity
Energy Wheel Maintenance
Annual inspection of the energy recovery wheel is recommended. MiniVent units ventilating smoking lounges and other non-clean air spaces should have energy recovery wheel inspections more often based upon need.
Accessing the Energy Recovery Wheel
Disconnect power to the MiniVent. Remove access panel labeled “Energy Wheel Cassette Access”. Unplug the wheel drive motor. Pull the cassette halfway out as shown.
Removing the Energy Recovery Wheel
First, remove the drive belt and the collars on both bearings. On the pulley side of the cassette remove the four (4) fasteners that hold the bearing support channel in place. Once the bearing support is removed the wheel can be pulled from the cassette. To replace the wheel reverse this procedure.
Recommended Cleaning Procedure for Energy Recovery Wheels
First, remove the energy recovery wheel by following the instructions on this page.
Wash the segments or small wheels with a non-acid based (evaporator) coil cleaner or alkaline detergent solution, such as 409™ or Fantastik™. Non-acid based coil cleaner such as KMP Acti-Clean AK-1 concentrate in a 5% solution has been demonstrated to provide excellent results. Do not use acid based cleaners, aromatic solvents, temperatures in excess of 140ºF or steam; damage to the wheel may result. Soak in the cleaning solution until dirt, grease, and/ or tar deposits are loosened. Internal heat exchange surfaces may be examined by separating the polymer strips by hand.
Note: Some staining of the desiccant may remain and is not harmful to performance.
After soaking, rinse the dirty solution from the wheel until the water runs clear. Allow excess water to drain from the media prior to reinstalling the wheel in the cassette. A small amount of water remaining in the wheel will be dried out by the airflow.
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Frequency of Energy Wheel Cleaning
A regular cleaning cycle must be established for the energy recovery wheel in order to maintain optimum sensible and latent energy transfer. In reasonably clean environments such as schools, offices or retail stores, the energy recovery wheel should be inspected annually and cleaned as needed.
For applications experiencing unusually high levels of tobacco smoke, such as lounges, nightclubs, bars and restaurants, washing of the energy recovery wheel every three months may be necessary to maintain latent energy (water vapor) transfer efficiency.
Failure to follow a regular cleaning cycle for the energy recovery wheel can result in significant energy transfer performance losses.
Energy Recovery Wheel Belt Drive
Drive belt(s) should be inspected annually. Normal operation eventually causes stretching or wear on the belt(s). Once this occurs the belt(s) should be replaced.
Replacement or spare energy wheel drive belt kits are available and ship with their own instructions. The serial number and date code of the energy wheel cassette are required to obtain the proper replacement belt kit from the factory. The energy wheel serial number and date code are located on a label above the drive pulley on the energy wheel cassette.
Wheel Nameplate Information
Model: ______________________________ Volts: ___________ Hertz: _______ Phase: ___ Wheel Serial Number: ____________________ Manufacture Date Code: __________________
Field Start-Up Documentation
Energy Wheel Rotates freely o Yes
Unit Documentation Record
Job Name:________________________________________
Address: _________________________________________
City: ________________ State: ________ Zip: __________
Phone: __________________ Fax: ____________________
Contact Person: ___________________________________
Service Organization: ______________________________
Address: _________________________________________
City: ________________ State: ________ Zip: __________
Phone: __________________ Fax: ____________________
Work Done By: ____________________________________
Field Start-Up Documentation
Actual Voltage: _______ Hertz: _______ Phase: _____
Actual Amperage: _________________________________
Supply Blower
Rotation o Correct
Air Volume Design __________ cfm Actual __________ cfm
Exhaust Blower
Rotation o Correct
Air Volume Design __________ cfm Actual __________ cfm
Supply Motor Voltage: _____________________________
Supply Motor Amperage: __________________________
Supply Fan rpm: __________________________________
Exhaust Motor Voltage: ____________________________
Exhaust Motor Amperage: _________________________
Exhaust Fan rpm: _________________________________
o No, check items below.
Air seal tightness o Acceptable o Adjusted as on page 8
Belt runs smoothly o Yes o Adjusted
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Nameplate Information
Model: ___________________________________________
Volts: ___________ Hertz: __________ Phase: _________
Min. Circuit Amps: _____________ Mark: _____________
Supply Hp: _____________ Exhaust Hp: ______________
Unit Serial Number: ________________________________
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Troubleshooting
Symptom Possible Cause Corrective Action
Check fuses/circuit breakers, replace if needed.
Electrical Unit is NOT operating
Motor
Check for On/Off switches. Check for correct supply voltage.
Check motor horsepower is correct and not tripping overloads.
Excessive noise
Low airflow (cfm)
High airflow (cfm)
Fan wheel rubbing on inlet
Bearings
Adjust wheel and/or inlet cone. Tighten wheel hub or bearing collars on shaft.
Replace defective bearing(s). Lubricate bearings. Tighten collars and fasteners.
Wheel out of balance Clean, replace or rebalance.
Fan speed too low Check for correct rpms with catalog data.
Fan wheels are operating
backwards
Dirty filters or energy wheel
High static pressure
Refer to Fan Wheel Rotation on page 8.
Replace filters and/or follow the cleaning procedure on pages 9 and 10.
Incorrect fan-to-duct connections. Make sure dampers open appropriately. Increase fan speed
Fan speed too high Check for correct fan rpm.
Low static pressure
Make sure grilles, filters and access doors are installed. Decrease fan speed.
Air seals too tight Refer to Energy Recovery Wheel, Air Seals on page 8.
Energy wheel does NOT turn
Energy wheel runs intermittently
No power to wheel motor
Wheel drive belt
Wheel motor overloads are
tripping due to rubbing between
wheel and air seals.
Make sure wheel drive is plugged in/connected. Verify power is available.
Check for loose or broken belts. Replace belts; consult factory.
Recheck air seals, make sure they are not too tight. See Energy Recovery Wheel, Air Seals on page 8.
Always provide the unit model and serial number when requesting parts or service information. Always check motor amps and compare to nameplate rating.
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Maintenance Log
Date __________________ Time _____________ AM/PM
Notes:___________________________________________
_________________________________________________
_________________________________________________
_________________________________________________
_________________________________________________
Date __________________ Time _____________ AM/PM
Notes:___________________________________________
_________________________________________________
_________________________________________________
_________________________________________________
_________________________________________________
Date __________________ Time _____________ AM/PM
Notes:___________________________________________
_________________________________________________
_________________________________________________
_________________________________________________
_________________________________________________
Date __________________ Time _____________ AM/PM
Notes:___________________________________________
_________________________________________________
_________________________________________________
_________________________________________________
_________________________________________________
Date __________________ Time _____________ AM/PM
Notes:___________________________________________
_________________________________________________
_________________________________________________
_________________________________________________
_________________________________________________
Date __________________ Time _____________ AM/PM
Notes:___________________________________________
_________________________________________________
_________________________________________________
_________________________________________________
_________________________________________________
Date __________________ Time _____________ AM/PM
Notes:___________________________________________
_________________________________________________
_________________________________________________
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Warranty
Greenheck warrants this equipment to be free from defects in material and workmanship for a period of one year from the shipment date. The energy recovery wheel is warranted to be free from defects in material and workmanship for a period of five years from the shipment date. Any units or parts which prove to be 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 catalog, Energy Recovery Ventilators, Model MiniVent, provides additional information describing the equipment, fan performance, available accessories, and specification data.
AMCA Publication 410-96, Safety Practices for Users and Installers of Industrial and Commercial Fans, provides additional safety information. This publication can be obtained from AMCA International, Inc. at www.amca.org.
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Phone:(715)359-6171•Fax:(715)355-2399•E-mail:gfcinfo@greenheck.com•Website: www.greenheck.com
459023 • MiniVent, Rev. 5, January 2012 Copyright 2012 © Greenheck Fan Corporation
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