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.

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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

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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

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

INTAKE SIDE "A"

Intake Side "B"

Energy Wheel

Weight

(lbs.)

INTAKE SIDE "B"

FRONT VIEW

BACK VIEW

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

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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

Discharge

Side “B”

Discharge

Side “A”

Intake

Side “A”

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

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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.

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

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+ 11 hidden pages