Fantech VHR 1404 User Manual

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

Heat Recovery Ventilators

fantech



Item #: 405191

Rev Date: 022414

SHR 1504 • SHR 1505 R(D) • SHR 2004 • SHR 2005 R(D) • SHR 3005 R • SHR 3205 RD

VHR 1404 • VHR 1405 R • VHR 2004 • VHR 2005 R • VHR 704

Fantech reserves the right to modify, at any time and without notice, any or all of its products’ features, designs,

components and specifications to maintain their technological leadership position.

Please visit our website www.fantech.net for more detailed technical information.



10048 Industrial Blvd., Lenexa, KS, 66215

Tel.: 800.747.1762 • Fax: 800.487.9915



50 Kanalflakt Way, Bouctouche, NB, E4S 3M5

Tel.: 800.565.3548 • Fax: 877.747.8116

Other manuals for Fantech VHR 1404

Installation Manual44 pages

Questions and Answers:

H
Hayden JimenezAug 18, 2025
What to do if Fantech VHR 1404 Fan air is too humid?
- J
  Jeff FowlerAug 18, 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.
B
Brett BellAug 21, 2025
Why is the air from my Fantech VHR 1404 too dry?
- P
  Paul WalshAug 21, 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.
M
Matthew ParksAug 23, 2025
What to do if Fantech Fan has poor air flows?
- D
  Deborah JonesAug 23, 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.
A
amberharperAug 26, 2025
Why is my Fantech VHR 1404 Fan supply air feels cold?
- A
  Amy SilvaAug 26, 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.
L
Leonard CaldwellAug 27, 2025
What to do if Fantech VHR 1404 Fan has persistent condensation on window?
- S
  Shannon ChangAug 27, 2025
  If you notice persistent condensation on windows when using your Fantech Fan, consider the following: * Reduce the desired level of humidity, if there is an improper adjustment of the dehumidistat control, and combine this step with the use of continuous exchange mode. * Have a contractor balance the HRV if the HRV is out of balance. * Open curtains or blinds to improve air circulation near windows.
E
Evan HernandezAug 30, 2025
How to fix HRV and/or Ducts frosting up in Fantech Fan?
- P
  peter51Aug 30, 2025
  If your Fantech Fan's HRV and/or ducts are frosting up, consider these solutions: * Have an HVAC contractor balance the HRV airflows if the HRV air flows are improperly balanced. * Note that minimal frost build-up is expected on cores before the unit initiates defrost cycle functions, if there is a malfunction of the HRV defrost system.
J
Johnny CookSep 1, 2025
What to do if Fantech VHR 1404 air is too dry?
- P
  Pamela JohnsSep 1, 2025
  If the air is too dry when using your Fantech Fan, increase the desired level of humidity if the dehumidistat control is set too low. Also, change the ventilation mode from continuous mode to standby.
D
David ZimmermanSep 3, 2025
How to fix Condensation or Ice Build Up in Insulated Duct to the Outside in Fantech VHR 1404?
- D
  Doris CookSep 3, 2025
  To address condensation or ice build-up in the insulated duct to the outside of your Fantech Fan, tape and seal all joints if there is an incomplete vapor barrier around the insulated duct. Also, tape any holes or tears made in the outer duct covering and ensure that the vapor barrier is completely sealed if there is a hole or tear in the outer duct covering.
K
katherine50Sep 6, 2025
Why is my Fantech Fan air too humid?
- E
  Evelyn PierceSep 6, 2025
  Several factors can cause your Fantech Fan to produce air that is too humid. First, reduce the desired level of humidity if the dehumidistat control is set too high and combine this with the use of continuous exchange mode. If there has been a sudden change in temperature, wait until the outside temperature stabilizes. Ensure that you store a majority of your wood outside. Check that the dryer vent is exhausting outside and that there is good air circulation near windows (open curtains or blinds). If you have a well-sealed basement door, open it or install a grill on the door. Finally, a failed damper system may be stuck in recirculation mode, so have a contractor verify the damper system.
M
Michael SmithSep 8, 2025
What to do if Fantech VHR 1404 Fan HRV and/or Ducts frosting up?
- G
  gthomasSep 8, 2025
  If your Fantech Fan's HRV and/or ducts are frosting up, it could be due to improperly balanced HRV air flows, have an HVAC contractor balance the HRV airflow. Note that minimal frost build-up is expected on cores before unit initiates defrost cycle functions.

Fantech VHR 1404 Specifications

General

Brand	Fantech
Model	VHR 1404
Category	Fan
Language	English

Summary

What are HRVs?

How do They Work

Port Configuration

Modes of Operation

Continuous Ventilation Mode

Explains continuous air exchange at selected speeds, recommended for pollutant removal.

Intermittent / Standby Mode

System on standby, activates high speed via remote control, user stops continuous exchange.

Defrost/Recirculation Mode (5 port "R" models)

Automatic defrost cycle for R models using recirculation and damper.

Defrost/Fan shutdown (4 port models)

Automatic defrost cycle for 4-port models using fan shutdown and ambient air.

Low Voltage Control Systems

Central Controls

Central control options that can only be used individually, with features and connection diagrams.

Auxiliary Controls

Auxiliary controls that can be paired with the system, listing features and wiring.

Maintenance

Filters

Instructions for checking, cleaning, and replacing air filters.

Heat Recovery Core

Guidance on cleaning the heat recovery core and filters every 3-6 months.

Troubleshooting

HRV Maintenance Chart

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