Greenheck ERV-361 User Manual

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GREENHECK

P.O. BOX 410 SCHOFIELD, WISCONSIN 54476-0410

PH. 715-359-6171

ENERGY RECOVERY VENTILATORS

Models ERV-251, 361, 521, 581, 522 & 582

INSTALLATION, OPERATION AND MAINTENANCE MANUAL

**WARNING**

DISCONNECT ALL ELECTRICAL POWER TO THE ERV PRIOR TO INSPECTION OR SERVICING BY

SECURING THE MAIN DISCONNECT SWITCH TO THE "OFF" POSITION. FAILURE TO COMPLY WITH THIS

SAFETY PRECAUTION COULD RESULT IN SERIOUS INJURY OR DEATH.

**IMPORTANT**

ALL FACTORY PROVIDED LIFTING LUGS MUST BE USED WHEN LIFTING ANY ERV.

FAILURE TO COMPLY WITH THIS SAFETY PRECAUTION COULD RESULT IN PROPERTY

DAMAGE, SERIOUS INJURY OR DEATH.

PART #455924

READ AND SAVE THESE INSTRUCTIONS

Questions and Answers:

S
swillisAug 5, 2025
How to fix excessive noise in Greenheck Fan?
- M
  michaelwilsonAug 5, 2025
  Excessive noise in your Greenheck Fan can stem from several sources. Start by checking if the fan wheel is rubbing against the inlet and adjust the wheel or inlet cone accordingly. Then, tighten the wheel hub or bearing collars on the shaft. Also, examine the bearings. If they are defective, replace them and lubricate the new bearings, tightening any loose collars and fasteners. Check the belts and tighten sheaves on the motor/fan shaft. Adjust belt tension and ensure sheaves are properly aligned. If belts or sheaves are worn, replace them. Finally, if the wheel is out of balance, replace or rebalance it.
A
Angelica KingAug 9, 2025
What to do if my Greenheck Fan is not operating?
- M
  Mark JenkinsAug 9, 2025
  If your Greenheck Fan is not operating, begin by checking the electrical components. Examine the fuses and circuit breakers, replacing them if necessary. Also, check for any On/Off switches that may be in the off position. Finally, ensure that the unit is receiving the correct supply voltage. If the electrical components are functioning correctly, check the drive components for broken or loose belts and tighten any loose pulleys. If the issue persists, inspect the motor to ensure that the motor hp is correct and not tripping overloads.
D
dylanstephensAug 14, 2025
Why is there low airflow (cfm) in my Greenheck Fan?
- R
  russell42Aug 14, 2025
  If your Greenheck Fan has low airflow (CFM), first check if the blower fan speed is too low and verify that the drives and RPMs match the catalog data. Also, check the blower rotation. Ensure correct fan-to-duct connections and make sure dampers open appropriately. Increasing the fan speed may also help.
D
Danielle ConradAug 18, 2025
Why is there high airflow (cfm) in my Greenheck ERV-361 Fan?
- D
  Diana Miller MDAug 18, 2025
  If your Greenheck Fan has high airflow (CFM), check if the blower fan speed is too high and verify the correct fan RPM. Also, ensure that grilles, filters, and access doors are installed properly. Decreasing the fan speed may also help.
K
Kyle FoxAug 22, 2025
What to do if one or both blowers turn off in my Greenheck ERV-361 Fan?
- A
  andersonjamesAug 22, 2025
  If one or both blowers of your Greenheck Fan turn off, it may be due to blower fan motor overloads tripping, in which case you should decrease the fan speed. It could also be that the exhaust only or On/Off frost control sensors are tripping; if so, adjust the frost temperature sensor set point as needed.
D
David HernandezAug 27, 2025
Why does the energy wheel not turn on my Greenheck Fan?
- J
  Joseph RomanAug 27, 2025
  If the energy wheel on your Greenheck Fan does not turn, ensure the wheel drive is plugged in and that power is available. Check for loose or broken belts and replace them if necessary. Also, adjust temperature or enthalpy set points as needed.
T
Tricia BaileyAug 30, 2025
Why does the energy wheel run intermittently on my Greenheck ERV-361?
- M
  Matthew MorrisonAug 30, 2025
  If the energy wheel on your Greenheck Fan runs intermittently, recheck the air seals to ensure they are not too tight.

Greenheck ERV-361 Specifications

General

Model	ERV-361
Weight	95 lbs
Hertz	60 Hz
Housing Material	Galvanized Steel
Power Supply	Electric

Summary

Lifting and Mounting Procedures

Safe Unit Lifting

Mandatory use of lifting lugs and spreader bars for safe unit lifting.

Slab Mounting Requirements

Requirements for concrete slab construction for unit mounting.

Unit Installation Guide

Mounting Methods Overview

Describes Surface Rail and Curb Mounting methods for the ERV.

Ductwork Installation and Connections

Guidelines for connecting ductwork to the unit and best practices.

Electrical Connections and Wiring

Instructions and warnings for connecting electrical power to the unit.

Technical Specifications and Clearances

Dimensional Data Tables

Provides exterior and duct dimensions for specific ERV models.

Service Clearance Requirements

Details minimum required clearances for maintenance and access.

System Startup Procedures

Initial Checks and Voltage Verification

General checks, voltage comparison, and energy recovery wheel inspection.

Blower and Motor Operation Checks

Procedures for checking blower rotation, air volume, and motor operation.

Optional Component Settings

Configuration of optional components like frost control and sensors.

Routine Maintenance Procedures

Belt and Fastener Maintenance

Procedures for checking and adjusting belts, fasteners, and set screws.

Component Cleaning and Filter Care

Guidelines for cleaning unit components and maintaining filters.

Energy Recovery Wheel Maintenance

Instructions for accessing, cleaning, and maintaining the energy recovery wheel.

Maintenance Documentation Forms

Energy Recovery Wheel Maintenance Log

Form for recording energy recovery wheel maintenance details.

General Unit Maintenance Log

Form for recording general unit maintenance activities.

Troubleshooting and Warranty

Troubleshooting Common Issues

Lists common problems, causes, and corrective actions for the ERV.

Warranty Coverage Details

Details the warranty period and terms for the equipment and parts.

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