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Venmar ERV500i - User Manual

Venmar ERV500i
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Installation, Operation and
Maintenance Instructions
ERV500i/e
ERV500i

Table of Contents

Questions and Answers

  • R
    Robyn StevensAug 7, 2025
    What to do if my Venmar Fan unit will not turn on or off?
    • S
      Sean PearsonAug 7, 2025
      If your Venmar Fan unit isn't turning on or off, there are several things you can check: * First, examine the external wiring to ensure it's properly connected. * Next, check the internal wiring within the control box to confirm all connections are secure. * Also, verify that the Occ./Unocc. control circuit is closed. * Finally, inspect the external terminal strip wiring to see if the high or low speed control contacts are closed.
  • D
    Darrell CarrAug 14, 2025
    Why is my Venmar ERV500i Fan motor and blower not functioning?
    • K
      Kimberly JonesAug 14, 2025
      If the motor and blower in your Venmar Fan aren't working, consider the following potential causes: * An interruption in the electrical supply. Check the unit's circuit breaker and the three-wire service connector on each motor. * A faulty fan motor capacitor. Inspect the capacitor connections and test the motor with a new capacitor. * Fan motor failure. In this case, you should check the fan motor. * A malfunctioning fan motor relay in the control box. Examine the relay wiring and test the relay operation.
  • A
    Amanda GarciaAug 21, 2025
    Why is the air from my Venmar ERV500i supply diffusers too cold?
    • T
      tmorenoAug 21, 2025
      If the air from the supply diffusers of your Venmar Fan is too cold, it could be due to an imbalance of supply and exhaust air. You should check the filters and enthalpy wheel for any blockage. Also, check the balance of airflow and consider installing a post-heat module.
  • W
    William HornDec 1, 2025
    Why is the enthalpy wheel not running on my Venmar ERV500i Fan?
    • D
      dakota86Dec 1, 2025
      If the enthalpy wheel isn't running on your Venmar Fan, here are some possible reasons: * There might be an interruption in the electrical supply. Check the unit circuit breaker and the two-wire service connector on the motor. * The drive motor capacitor could be faulty. Check the capacitor connections and test the motor's operation with a new capacitor. * The drive motor itself might have failed, so check the drive motor. * There could be an issue with the drive motor relay in the control box. Check the relay wiring and its operation. * The drive belt may have derailed from the drive pulley or failed, so check it. * The drive pulley may not be securely fastened on the motor shaft, so check it. * The free cooling contact may be closed. Open the contact on the external termin...

Summary

Safety Considerations and General Information

General Information

Information about Energy Recovery Ventilators (ERVs) and their purpose.

Installation Overview

Guidance on installing the unit, covering initial steps and mounting methods.

Installation Procedures

Duct Connections and Rigging

Connecting ductwork, rigging, and placing the unit for installation.

Hoods, Access Panels, and Packaging

Installing hoods, access panels, and removing internal packaging.

Systems Integration and Electrical

Systems Integration Methods

Integrating the ERV with forced air or separate ventilation systems.

Electrical Connection Procedures

Wiring the unit for power supply and field connections.

Start Up and Operation

Controls and Frost Control

Overview of available remote controls and frost control functions.

Sequence of Operation and Checks

Unit operational sequences and pre-operation check points.

System Service and Maintenance

Airflow Balancing and Quarterly Tasks

Balancing airflow and performing quarterly maintenance like filter replacement.

Annual Maintenance and Component Checks

Yearly maintenance for interior, enthalpy wheel, and fans.

Damper Actuator Service

Testing and replacing the damper actuator.

Component Removal Procedures

Motor and Blower Removal

Step-by-step instructions for removing motors and blower assemblies.

Cassette Assembly Removal

Procedures for safely removing the cassette assembly.

Cassette Service Details

Brush Seal Replacement

Instructions for replacing the brush seal on the cassette.

Drive Belt Replacement

Steps for replacing the cassette drive belt.

Cassette Service Continuation

Cassette Re-assembly

Completing the re-installation of the cassette assembly and belt.

Appendix A: Roofcurb Detail

ERV500 e Roofcurb Installation

Diagrams and dimensions for roofcurb installation specific to ERV500e.

Appendix B: ERV500 i Dimensional Drawing

ERV500 i Dimensions and Views

Technical drawings and dimensions for the ERV500i model.

Appendix B Continued: ERV500 e Dimensional Drawing

ERV500 e Dimensions and Views

Technical drawings and dimensions for the ERV500e model.

Appendix C: Hood Installation and Rigging

ERV500 e Hoods and Rigging

Instructions for installing and rigging hoods for the ERV500e.

Appendix D: Installation Requirements

Minimum Distances and Typical Layouts

Guidelines for minimum spacing and typical installation layouts.

Appendix E: ERV500 i Components

ERV500 i Component Identification

Identification of key components within the ERV500i unit.

Appendix E Continued: ERV500 e Components

ERV500 e Component Identification

Identification of key components within the ERV500e unit.

Appendix F: Equipment Data

ERV Unit Specifications

Specifications and data for both ERV500i and ERV500e models.

Appendix G: Airflow Performance Charts

ERV Airflow Performance Data

Charts showing airflow performance under various static pressure conditions.

Appendix H: Terminal Control Diagrams

Wall Control Wiring

Wiring details for standard and Xtra wall controls.

Occupancy Sensor Wiring

Wiring for occupancy control using timers or sensors.

Enthalpy and Remote Fan Control

Wiring for enthalpy control and remote fan speed control.

Low Temp and Wheel Rotation Sensor

Wiring for low temperature control and wheel rotation sensor.

CO2, Unoccupied Recirc, and Smoke Detector

Wiring for CO2, unoccupied recirc, and smoke detector integration.

Appendix I: Trouble Shooting

ERV Unit Problem Diagnosis

Common problems and their solutions for the ERV unit.

Venmar ERV500i Specifications

General IconGeneral
BrandVenmar
ModelERV500i
CategoryFan
LanguageEnglish

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