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Fantech VHR 2004 - User Manual

Fantech VHR 2004
28 pages
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SHR 1504 • SHR 1505 R(D) • SHR 2004 • SHR 2005 R(D) • SHR 3005 R • SHR 3205RD
VHR 1404 • VHR 1405 R • VHR 2004 • VHR 2005 R • VHR 704
*Leave with Homeowner
Heat Recovery Ventilator Operation Manual
For use with Models

Table of Contents

Other manuals for Fantech VHR 2004

Preview: Installation Manual
Installation Manual44 pages

Questions and Answers

  • R
    Raymond EvansSep 22, 2025
    How to fix condensation or ice build up in insulated duct to the outside of Fantech VHR 2004 Fan?
    • J
      Jimmy StoneSep 22, 2025
      If you notice condensation or ice build-up in the insulated duct to the outside of your Fantech Fan, it might be caused by an incomplete vapor barrier around the insulated duct. In this case, tape and seal all joints. Another cause can be a hole or tear in the outer duct covering, tape any holes or tears made in the outer duct covering and ensure that the vapor barrier is completely sealed.
  • J
    joseph11Aug 25, 2025
    Why is the air from my Fantech Fan too dry?
    • C
      Cole AllenAug 25, 2025
      The air from your Fantech Fan may be too dry if the dehumidistat control is set too low or the HRV is out of balance. You can increase the desired level of humidity and change the ventilation mode from continuous to standby. It is also recommended to have a contractor balance the HRV airflows.
  • J
    Jillian TravisAug 25, 2025
    What to do if Fantech Fan has poor air flows?
    • D
      Devin JonesAug 26, 2025
      If your Fantech Fan has poor air flows, you can try the following: * Clean exterior hoods or vents if the 1/4" (6mm) mesh on the outside hoods is plugged. * Remove and clean the filter if filters are plugged. * Remove and clean the core if it is obstructed. * Check and open indoor grilles if they are closed or blocked. Also, ensure that an electrician checks the supply voltage if there is an inadequate power supply at the site and check duct installation if ductwork is restricting airflow. Increase the speed of the HRV if there is an improper speed control setting. If the HRV airflow is improperly balanced or ducting has fallen down or been disconnected from the HRV, have a contractor address these issues.
  • J
    joshuajonesAug 26, 2025
    Why is my Fantech VHR 2004 Fan supply air feels cold?
    • J
      jpopeAug 27, 2025
      If the supply air from your Fantech Fan feels cold, it could be due to the following reasons: * The location of supply grilles may be causing airflow to irritate occupants. Relocate the grilles high on the walls or under the baseboards, and install ceiling-mounted diffusers or grilles to avoid directly spilling supply air on occupants. You can also turn down the HRV supply speed. A small duct heater (1kW) could be used to temper the supply air. Ensure that furniture placement or closed doors are not restricting air movement. * If the outdoor temperature is extremely cold, and supply air is ducted into the furnace return, the furnace fan may need to run continuously to distribute ventilation air comfortably.
  • C
    Christine MartinSep 23, 2025
    Why is Fantech Fan air too dry?
    • C
      christopherwilsonSep 23, 2025
      If the air from your Fantech Fan is too dry, it may be because the dehumidistat control is set too low. Increase the desired level of humidity and change the ventilation mode from continuous mode to standby.
  • Y
    ycantuSep 23, 2025
    What to do if LED is flashing on Fantech VHR 2004?
    • P
      Philip PearsonSep 23, 2025
      If the LED on your Fantech Fan is flashing, it indicates that no power is being transmitted to the control board. First, make sure the unit is plugged in. If it is, the transformer may need replacing.
  • J
    Jennifer WilliamsSep 12, 2025
    Why does the supply air feel cold from my Fantech VHR 2004 Fan?
    • T
      Terri BennettSep 12, 2025
      If the supply air from your Fantech Fan feels cold, it could be due to the location of the supply grilles, which might irritate the occupant. Consider relocating the grilles higher on the walls or under the baseboards, or install ceiling-mounted diffusers or grilles to avoid directly spilling the supply air on the occupant. You could also turn down the HRV supply speed or use a small duct heater (1kW) to temper the supply air. Additionally, ensure that furniture or closed doors aren't restricting air movement in the home. If the outdoor temperature is extremely cold, and the supply air is ducted into the furnace return, the furnace fan may need to run continuously to distribute ventilation air comfortably.
  • T
    Teresa HendersonSep 12, 2025
    How to fix air that is too dry with Fantech VHR 2004?
    • M
      Maurice JonesSep 12, 2025
      If the air is too dry when using your Fantech Fan, it might be because the dehumidistat control is set too low. Try increasing the desired level of humidity and change the ventilation mode from continuous mode to standby.
  • K
    kevinklineSep 3, 2025
    Why does supply air feel cold from my Fantech Fan?
    • T
      Thomas OlsonSep 3, 2025
      If the supply air from your Fantech Fan feels cold, reposition the supply grilles high on the walls or under the baseboards, and install ceiling-mounted diffusers to avoid direct airflow on occupants. Reduce the HRV supply speed. If supply air is ducted into the furnace return, run the furnace fan continuously. Also, ensure furniture or closed doors aren't restricting air movement.
  • J
    jessicafoxSep 1, 2025
    How to improve poor air flows in my Fantech VHR 2004 Fan?
    • K
      Kenneth SimonSep 1, 2025
      To improve poor air flows with your Fantech Fan, begin by cleaning the exterior hoods or vents and removing and cleaning the filter and core. Ensure indoor grilles are open and not blocked. Have an electrician check the power supply voltage. Check the duct installation and increase the HRV speed. If the issue persists, have a contractor balance HRV airflows or reconnect ducting.

Summary

Understanding HRVs

What Are HRVs?

Defines Heat Recovery Ventilators and their purpose in whole-house ventilation.

How Do They Work?

Explains the operating principle of HRVs, including heat recovery core function.

Fantech Product Identification

Model Numbers and Port Configurations

Explains model number nomenclature and describes different port configurations.

OPERATION MODES AND SEASONAL ADJUSTMENTS

Winter Operation Considerations

Discusses humidity control, condensation, and recommended ventilation for winter.

Spring, Summer, and Fall Operation

Discusses optimal HRV operation and humidity control settings for other seasons.

MODES OF OPERATION

Continuous Ventilation Mode

Describes continuous operation at selected fan speeds for constant air exchange.

Intermittent; Standby Mode

Describes standby mode and activation via optional remote controls.

Defrost Modes (5-Port & 4-Port Models)

Explains automatic defrost cycles for different HRV models.

OPTIONAL REMOTE CONTROLS OVERVIEW

Dehumidistat & Timer Controls

Covers MDEH and RTS series controls for humidity and timed ventilation.

Multi-Function & Basic Controls

Covers EDF series controls for various operating modes and basic functions.

Control Panel Features

Describes digital display, power, mode selection, speed, and cycle controls.

MAINTENANCE PROCEDURES

Filter and Heat Recovery Core Maintenance

Instructions for cleaning and maintaining filters and the heat recovery core.

Unit and Component Care

Maintenance for fan, unit interior, drain line, and outside hoods.

TROUBLESHOOTING GUIDE

Air Humidity & Condensation Issues

Addresses problems related to air being too dry or too humid, and window condensation.

Airflow, Frosting & Duct Issues

Troubleshooting poor airflow, frost buildup, and duct-related problems.

Control Board LED Indicators

Interpreting control board LED light codes for diagnostics.

HRV MAINTENANCE CHART AND WARRANTY

Scheduled Maintenance Tasks and Frequency

Summary of recommended maintenance tasks and their frequency.

Limited Warranty Details

Information on warranty coverage, limitations, and responsibilities.

IMPORTANT INSTALLATION PRECAUTIONS

General Installation Cautions

Safety warnings and considerations before installing the unit.

Combustion Equipment Interaction Warnings

Warnings about potential interaction with vented combustion appliances.

DETERMINING AIRFLOW REQUIREMENT

Maximum Airflow Calculation Method

Method for calculating required airflow based on house volume.

Alternate Sizing Method (Room-by-Room)

Alternative method for calculating airflow based on room classification.

TECHNICAL DATA (SHR Models)

Dimensions and Airflow Path

Provides physical dimensions and airflow path diagrams for SHR models.

Fan Performance and Power Data

Presents fan performance curves and electrical power specifications.

TECHNICAL DATA (VHR Models)

Measurements and Airflow Path

Provides physical dimensions and airflow path diagrams for VHR models.

Fan Performance and Power Data

Presents fan performance curves and electrical power specifications for VHR models.

HRV INSTALLATION

Installation Location and Tips

Guidance on selecting the optimal installation location and general installation tips.

Mounting and Drain Line Setup

Instructions for mounting the HRV unit and installing the condensate drain line.

EXTERIOR DUCTING INSTALLATION

Weatherhood Location Guidelines

Recommendations for positioning intake and exhaust weatherhoods.

Ducting to Weatherhoods and Installation Steps

Process for connecting flexible ducts to weatherhoods and securing them.

INTERIOR DUCTING INSTALLATION

General Ducting Tips and HRV Connection

Best practices for ductwork design and connecting to the HRV unit.

Supply and Exhaust Grille Placement

Guidance on locating supply and exhaust air grilles within the home.

Ducting for 5 th Port Units

Specific considerations for ducting the fifth port on 'R' models.

INSTALLATION EXAMPLES

Fully Dedicated System Installation

Diagram and notes for a recommended fully dedicated system in new construction.

INSTALLATION EXAMPLES (CONTD)

Partially Dedicated System Connection to Furnace

Connecting HRV to furnace cold air return for ventilation.

Partially Dedicated System Ducting Diagram

Illustrates ductwork layout for a partially dedicated system.

INSTALLATION EXAMPLES (CONTD)

Simplified Installation Option 1 (Return;Return Method)

Connecting HRV supply and exhaust to furnace cold air return.

Option 1 Ducting Diagram

Shows ductwork for simplified installation option 1.

INSTALLATION EXAMPLES (CONTD)

Simplified Installation Option 2 (Supply;Return Method)

Connecting HRV to furnace cold air return and supply air side.

Option 2 Ducting Diagram

Illustrates ductwork for simplified installation option 2.

START UP PROCEDURE & AIRFLOW BALANCING

Start Up Self-Diagnostic

Describes the unit's 45-second self-diagnostic during initial power-up.

Airflow Balancing Importance and Warnings

Explains the necessity of airflow balancing and potential issues if unbalanced.

AIRFLOW BALANCING TECHNIQUES

Adjusting Airflows with Integrated Damper

How to adjust airflow using the built-in damper on the fresh air collar.

Measuring Airflow Using Station Method

Procedure for measuring airflow velocity using a station or grid method.

LOW VOLTAGE CONTROL SYSTEMS

Basic and Advanced Control Features

Overview of basic (EDF1, EDF2) and advanced (MDEH, EDF5) control functions.

Timer Controls (RTS Series)

Describes the operation of RTS2 and RTS3 timer controls.

Control System Notes and Operation

Important notes and operational tips for various control systems.

ELECTRICAL CONNECTIONS

Wiring for Common Control Devices

Wiring diagrams for common accessory controls like EDF, RTS, and Dehumidistats.

Wiring Notes and Timer Connections

General notes on wiring polarity and timer connections.

ELECTRICAL CONNECTIONS TO FURNACE

Standard & Alternative Thermostat Connections

Wiring connections to standard and alternative HVAC system thermostat controls.

Furnace Cooling System Wiring & Cautions

Specific wiring for systems with cooling and associated safety cautions.

TROUBLESHOOTING COMMON ISSUES

Air Humidity & Condensation Problems

Addresses problems related to air being too dry, too humid, and window condensation.

Airflow, Frosting & Duct Issues

Troubleshooting poor airflow, frost buildup in ducts, and other air movement issues.

Control Board LED Indicator Codes

Interpreting control board LED light codes for system diagnostics.

HRV MAINTENANCE AND WARRANTY

Scheduled Maintenance Tasks and Frequency

Summary of recommended maintenance tasks and their frequency for the HRV.

Limited Warranty Coverage and Limitations

Details on warranty coverage, limitations, and purchaser responsibilities.

Fantech VHR 2004 Specifications

General IconGeneral
ModelVHR 2004
Frequency50Hz
Tilt AdjustmentYes
TypeDesk Fan
Voltage220V

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