Greenheck MiniVent-450 Installation Manual

Part #459023

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.

Energy Recovery Ventilators • MiniVent

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

Energy Recovery Ventilators • MiniVent

Dimensional Data and Weights Service Clearances and Access

Outdoor Air

Discharge

Exhaust

Discharge

Outdoor Air

Intake

Front View

Outdoor Air

Discharge

Outdoor Air

Intake

Front View

Outdoor Air

Intake

Exhaust Discharge

Back View

Outdoor Air Discharge

Energy Wheel

Front View

MiniVent A B C

450 40 29 18 150

750 46 36 22 210

All dimensions are in inches.

Exhaust Intake

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.

Outdoor Air

Discharge

Intake

Front View

Exhaust

Intake

Back View

Exhaust

Discharge

Exhaust Discharge

Exhaust Intake

Cassette

Slides Out

Supply Discharge

Supply Intake

MiniVent D E F G H J K L M N P Q

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.

Energy Recovery Ventilators • MiniVent

Intake and Discharge Locations

Flat Washer

Lock Washer

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.

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

450 37 750 43

All dimensions are in inches.

⁄8 267⁄8 20

⁄8 327⁄8 24

Isolator Assembly

Electrical and Fan Access Panel (underside)

Energy Recovery Ventilators • MiniVent

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