Fantech VHR 2005 R User Manual (English)

Questions and Answers:

J
Jessica AllenAug 21, 2025
What to do if Fantech VHR 2005 R Fan air is too humid?
- M
  Mandy JohnsonAug 21, 2025
  If the air from your Fantech Fan is too humid, it might be due to several reasons, including the dehumidistat control being set too high, a sudden change in temperature, storing too much wood inside, a dryer vent exhausting inside, poor air circulation near windows, an out-of-balance HRV, or a closed well-sealed basement door. To address this, reduce the desired level of humidity and use continuous exchange mode. Wait for the outside temperature to stabilize, and consider heating to improve the situation. Store most of your wood outside, arrange an outside vent for the dryer, open curtains or blinds, balance HRV airflows, and open the basement door or install a grill.
M
Martha CraigAug 22, 2025
Why is the air from my Fantech VHR 2005 R Fan too dry?
- J
  Justin MyersAug 22, 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.
O
oblevinsAug 25, 2025
What to do if the air is too humid with my Fantech VHR 2005 R Fan?
- K
  Katherine SolisAug 25, 2025
  To address air that's too humid, try reducing the humidity level setting and use continuous exchange mode on your Fantech Fan. Also, ensure your dryer vent exhausts outside, store wood for heating outdoors, and open curtains or blinds to improve air circulation. If you have a well-sealed basement door, open it or install a grill. If the issue persists, a contractor should check the defrost damper, as a failed damper system might be stuck in recirculation mode, or balance HRV airflows.
K
Kenneth HuffAug 26, 2025
How to improve poor air flows in my Fantech Fan?
- A
  Angelica WilsonAug 27, 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.
B
Brian BrownAug 28, 2025
How to stop persistent condensation on window with my Fantech Fan?
- M
  Michelle CastilloAug 28, 2025
  To fix persistent condensation on your window when using a Fantech Fan, reduce the humidity level and use continuous exchange mode. Open curtains or blinds to improve air circulation. If the problem continues, have a contractor balance the HRV.
D
David JimenezAug 29, 2025
Why does supply air feel cold from my Fantech VHR 2005 R?
- N
  Nicholas BeanAug 29, 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.
R
Robert SavageAug 31, 2025
What to do about condensation or ice build up in insulated duct to the outside of my Fantech Fan?
- L
  linda93Aug 31, 2025
  To address condensation or ice buildup in the insulated duct of your Fantech Fan, tape and seal all joints to ensure a complete vapor barrier. Also, tape any holes or tears in the outer duct covering and ensure the vapor barrier is completely sealed.
R
Richard ChristensenSep 2, 2025
Why are my Fantech VHR 2005 R Fan's HRV and/or ducts frosting up?
- A
  amillerSep 2, 2025
  If your Fantech Fan's HRV and/or ducts are frosting up, have an HVAC contractor balance the HRV airflows. Note that minimal frost build-up is expected on cores before the unit initiates defrost cycle functions.
L
Luke WilliamsSep 4, 2025
How to fix air that is too dry with my Fantech VHR 2005 R Fan?
- M
  Melanie JohnsonSep 4, 2025
  To resolve air that is too dry with your Fantech Fan, increase the desired humidity level and change the ventilation mode from continuous to standby. If the issue remains, have a contractor balance the HRV airflows.
A
Amy StewartSep 5, 2025
What to do if Fantech VHR 2005 R has poor air flows?
- J
  Jean RoweSep 6, 2025
  If your Fantech Fan has poor air flows, several factors could be responsible. Start by cleaning the exterior hoods or vents if the 1/4" (6mm) mesh on the outside hoods is plugged. Also, remove and clean the filter and core. Ensure indoor grilles are open and not blocked. If these steps don't resolve the issue, have an electrician check the power supply voltage. Check the duct installation and increase the speed of the HRV. If the problem persists, have a contractor balance the HRV airflow or reconnect any ducting that has fallen down or been disconnected from the HRV.

Fantech VHR 2005 R Specifications

General

Brand	Fantech
Model	VHR 2005 R
Category	Fan
Language	English

Summary

Understanding Heat Recovery Ventilators (HRVs)

What are HRVs?

Definition and basic function of Heat Recovery Ventilators.

How HRVs Work

Explanation of the heat recovery process and unit operation.

Fantech Model Numbering

Guide to understanding Fantech HRV model nomenclature.

HRV Port Configurations

Overview of different port configurations available in HRVs.

Operation and Modes of HRVs

Seasonal Operation Considerations

Guidance on operating HRVs during different seasons (Winter, Spring, Summer, Fall).

Continuous Ventilation Mode

Details on operating the HRV for constant air exchange.

Intermittent/Standby Mode

Explanation of standby and intermittent operation for specific HRV models.

Defrost Modes

Description of defrost cycles for 5-port and 4-port HRV models.

Optional Remote Controls

MDEH1 Dehumidistat Control

Wall-mount control for indoor humidity monitoring and adjustment.

MDEH2 Dehumidistat Control

Enhanced wall-mount control with off/on and humidity features.

RTS3 Boost Timer

Timer control for activating high-speed ventilation for set periods.

EDF1/EDF1R Timer Controls

Simple controls for timed or continuous operation modes.

RTS2 Remote Timer

Timer control for short-duration high-speed ventilation boosts.

EDF5 Multi-Function Wall Control

Comprehensive control for humidity, speed, and cycle settings.

HRV Maintenance and Care

Filter Maintenance

Instructions for checking, cleaning, and replacing air filters.

Heat Recovery Core Cleaning

Procedure for cleaning the heat recovery core.

Unit, Fan, and Drain Maintenance

Guidelines for cleaning the unit, fan, and drain system.

Outside Hoods and Ductwork Inspection

Recommendations for checking and maintaining exterior components.

Scheduled Maintenance Tasks

Table outlining required maintenance and recommended frequencies.

Product Limited Warranty Details

Information regarding the HRV's warranty terms and conditions.

Troubleshooting Guide

Common Airflow and Humidity Issues

Solutions for problems related to air dryness, humidity, and flow.

Condensation, Frosting, and Duct Issues

Troubleshooting for condensation, ice build-up, and duct integrity.

Control Board Error Indicators

Understanding LED light codes on the control board for diagnostics.

Determining Airflow Requirements

Calculating Required Airflow

Method for calculating the necessary airflow for whole-house ventilation.

Alternate Airflow Calculation Method

Room-by-room method for determining ventilation airflow rates.

Technical Specifications and Performance Data

SHR Model Dimensions and Airflow

Physical dimensions and airflow path for SHR series.

SHR Series Performance Data

Sensible effectiveness and power consumption for SHR models.

VHR Model Dimensions and Airflow

Physical dimensions and airflow path for VHR series.

VHR Series Performance Data

Sensible effectiveness and power consumption for VHR models.

HRV Installation Procedures

Selecting the Installation Location

Guidelines for choosing an appropriate location for the HRV unit.

Unit Mounting and Drain Line Setup

Steps for physically mounting the HRV and installing the condensate drain.

Exterior Ducting Installation

Weatherhood Placement and Duct Connection

Instructions for locating and connecting exterior air intake/exhaust hoods.

Interior Ducting Installation

General Ducting Tips and Grille Placement

Best practices for interior ductwork and grille positioning.

Ducting for 5th Port Units

Specific guidance for connecting the fifth port on certain HRV models.

HRV Installation Examples

Fully Dedicated System Installation

Diagram and notes for a recommended new construction installation.

Partially Dedicated System Installation

Example of connecting the HRV to a furnace's cold air return.

Simplified Installation - Option 1

Diagram for connecting HRV supply/exhaust to furnace return.

Simplified Installation - Option 2

Diagram for connecting HRV to furnace return and supply sides.

Startup and Airflow Balancing

Unit Startup Procedure

Steps for initial power-up and unit self-diagnostic.

Airflow Balancing Principles

Importance and purpose of balancing supply and return airflows.

Adjusting and Measuring Airflow

Methods for adjusting dampers and measuring airflow velocity.

Low Voltage Control System Options

EDF Series Timer Controls

Controls for timed operation, recirculation, and continuous modes.

MDEH Series Dehumidistats

Controls for monitoring and managing indoor humidity levels.

RTS Series Timers

Controls for activating high-speed ventilation for specific durations.

Electrical Connections and Wiring Diagrams

HRV Unit Wiring Diagram

Overview of internal wiring connections for the HRV unit.

Accessory Control Wiring

Diagrams for connecting various low-voltage accessory controls.

Furnace and Cooling System Interlock

Wiring configurations for connecting the HRV to HVAC systems.

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Fantech VHR 2005 R User Manual

Table of Contents

Questions and Answers:

Fantech VHR 2005 R Specifications

Summary

Understanding Heat Recovery Ventilators (HRVs)

What are HRVs?

How HRVs Work

Fantech Model Numbering

HRV Port Configurations

Operation and Modes of HRVs

Seasonal Operation Considerations

Continuous Ventilation Mode

Intermittent/Standby Mode

Defrost Modes

Optional Remote Controls

MDEH1 Dehumidistat Control

MDEH2 Dehumidistat Control

RTS3 Boost Timer

EDF1/EDF1R Timer Controls

RTS2 Remote Timer

EDF5 Multi-Function Wall Control

HRV Maintenance and Care

Filter Maintenance

Heat Recovery Core Cleaning

Unit, Fan, and Drain Maintenance

Outside Hoods and Ductwork Inspection

Scheduled Maintenance Tasks

Product Limited Warranty Details

Troubleshooting Guide

Common Airflow and Humidity Issues

Condensation, Frosting, and Duct Issues

Control Board Error Indicators

Determining Airflow Requirements

Calculating Required Airflow

Alternate Airflow Calculation Method

Technical Specifications and Performance Data

SHR Model Dimensions and Airflow

SHR Series Performance Data

VHR Model Dimensions and Airflow

VHR Series Performance Data

HRV Installation Procedures

Selecting the Installation Location

Unit Mounting and Drain Line Setup

Exterior Ducting Installation

Weatherhood Placement and Duct Connection

Interior Ducting Installation

General Ducting Tips and Grille Placement

Ducting for 5th Port Units

HRV Installation Examples

Fully Dedicated System Installation

Partially Dedicated System Installation

Simplified Installation - Option 1

Simplified Installation - Option 2

Startup and Airflow Balancing

Unit Startup Procedure

Airflow Balancing Principles

Adjusting and Measuring Airflow

Low Voltage Control System Options

EDF Series Timer Controls

MDEH Series Dehumidistats

RTS Series Timers

Electrical Connections and Wiring Diagrams

HRV Unit Wiring Diagram

Accessory Control Wiring

Furnace and Cooling System Interlock

Related product manuals