How to fix air that is too dry with my Fantech VHR 1405 R?
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.
What to do if LED is flashing on Fantech VHR 1405 R?
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.
Why is Fantech Fan air too dry?
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.
How to fix condensation or ice build up in insulated duct to the outside of Fantech Fan?
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.
What to do if Fantech VHR 1405 R HRV and/or Ducts frosting up?
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.
Why is my Fantech Fan supply air feels cold?
If the supply air from your Fantech Fan feels cold, it could be due to the location of the supply grilles. Locate the grilles high on the walls or under the baseboards, install ceiling-mounted diffuser or grilles so as not to directly spill the supply air on the occupant. You can also turn down the HRV supply speed. 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.
What to do if Fantech Fan has persistent condensation on window?
If you notice persistent condensation on your window when using the Fantech Fan, it could be due to a few reasons. Try reducing the desired level of humidity, combining this step with the use of continuous exchange mode. Also, ensure good air circulation near windows by opening curtains or blinds. If the issue continues, have a contractor balance the HRV.
Why is my Fantech VHR 1405 R air too humid?
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.
What to do if Fantech Fan has poor air flows?
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.
What to do if Fantech Fan air is too humid?
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.
Definition and basic function of HRVs.
Explanation of the heat transfer process in HRVs.
Explains how Fantech model numbers are structured.
Details on 4-port vs. 5-port HRV configurations.
Managing humidity and condensation in winter.
Adjusting settings for moderate spring conditions.
Cooling and dehumidification strategies for summer.
Dealing with humidity and temperature changes in fall.
Detailed operation of the continuous mode.
Functionality of intermittent and standby modes.
How the defrost cycle works on 5-port models.
How the defrost cycle works on 4-port models.
Controls for managing indoor humidity levels.
Timers for activating high-speed ventilation.
Controls offering multiple operational modes.
Comprehensive wall control for various HRV functions.
Instructions for checking, cleaning, and replacing filters.
Guidelines for cleaning the heat recovery core.
Maintenance for fans, unit interior, drain lines, and hoods.
Solutions for air being too dry or too humid.
Resolving window condensation and poor airflow.
Diagnosing cold supply air and frosting.
Understanding green LED light codes.
Tasks and frequencies for regular HRV upkeep.
Details on the product's limited warranty coverage.
Important warnings before starting unit installation.
Preventing backdrafting with combustion equipment.
Step-by-step calculation using cubic volume.
Method to determine airflow based on room type and usage.
Physical sizes and airflow path for SHR units.
Graphs showing fan performance vs. static pressure.
Data on sensible effectiveness and power usage.
Physical sizes and airflow path for VHR units.
Graphs showing fan performance vs. static pressure.
Data on sensible effectiveness and power usage.
Advice on selecting the optimal installation site.
Step-by-step guide for securely mounting the HRV.
How to properly install the drain line for condensation.
Criteria for locating intake and exhaust hoods.
Procedures for attaching flexible ducting to exterior hoods.
Tips for efficient and effective interior duct routing.
Recommendations for locating air grilles for optimal airflow.
Specific instructions for ducting units with a fifth port.
Example of a fully dedicated HRV system setup.
Example of connecting HRV supply to furnace cold air return.
Example of connecting HRV supply/exhaust to furnace return.
Example of connecting HRV supply/exhaust to furnace supply/return.
Steps for powering on and initial unit self-diagnostic.
Explains why balancing airflow is critical for performance and safety.
Instructions for using the built-in damper to control airflow.
Detailed steps for measuring airflow using a station or grid.
Functions and operation of EDF series controls.
Features and operation of MDEH dehumidistat controls.
Operation of RTS2 and RTS3 timer controls.
Diagrams showing electrical connections for EDF and timer controls.
Diagrams illustrating connections for dehumidistat controls.
Detailed schematic of internal and external electrical connections.
Connecting HRV to furnace standard accessory contacts.
Connecting HRV to furnace alternative accessory contacts.
Wiring for connecting to a furnace with cooling.
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