How to improve poor air flow in my Direct Air Fan?
To improve poor air flow in your Direct Air Fan, you can try the following: * Clean exterior hoods or vents. * Remove and clean the filter. * Remove and clean the core. * Check and open indoor grilles. * Have an electrician check the supply voltage. * Check the duct installation. * Increase the speed of the HRV (i.e., change the unit control from REDUCED to NORMAL speed).
Why is the air too humid when using my Direct Air PHRVR100 ES Fan?
Several factors can cause the air to be too humid when using your Direct Air Fan. It could be due to a dehumidistat control set too high, a sudden change in temperature, storing too much wood for heating inside, a dryer vent exhausting inside the home, poor air circulation near windows, an out-of-balance HRV, a closed well-sealed basement door, or a failed damper system stuck in recirculation mode. To address this, you can reduce the desired level of humidity and use continuous exchange mode. Wait until the outside temperature stabilizes, store wood outside, ensure the dryer vent exhausts outside, open curtains or blinds, have a contractor balance the HRV airflow, open the basement door or install a grill, and have a contractor verify the damper system.
What to do if there is persistent condensation on the window when using Direct Air PHRVR100 ES?
If you notice persistent condensation on the window when using your Direct Air Fan, it might be due to improper adjustment of the dehumidistat control, an out-of-balance HRV, or poor air circulation near the windows. To resolve this, reduce the desired level of humidity and use continuous exchange mode. Additionally, have a contractor balance the HRV, and ensure you open curtains or blinds to improve air circulation.
Why does the supply air feel cold from my Direct Air PHRVR100 ES?
The supply air from your Direct Air Fan might feel cold due to the poor location of supply grilles, which can irritate occupants, or because the outdoor temperature is extremely cold. To address this, locate the grilles high on the walls or under the baseboards, install ceiling-mounted diffusers or grilles to avoid directly spilling the supply air on occupants, turn down the HRV supply speed, or use a small duct heater (1kW) to temper the supply air. If the supply air is ducted into the furnace return, the furnace fan may need to run continuously to distribute ventilation air comfortably.
How to fix air that is too dry when using my Direct Air Fan?
If the air is too dry when using your Direct Air Fan, it may be because the dehumidistat control is set too low. To fix this, increase the desired level of humidity and change the ventilation mode from continuous mode to standby.
Why are my Direct Air PHRVR100 ES HRV and/or ducts frosting up?
If your Direct Air Fan HRV and/or ducts are frosting up, it could be due to improperly balanced HRV airflows or a malfunction of the HRV defrost system. Consider having an HVAC contractor balance the HRV airflows. Note that minimal frost build-up is expected on the core before the unit initiates defrost cycle functions.
Why is there condensation or ice build up in the insulated duct to the outside of my Direct Air Fan?
Condensation or ice build-up in the insulated duct to the outside of your Direct Air Fan could be due to an incomplete vapor barrier around the insulated duct or a hole or tear in the outer duct covering. To resolve this, tape and seal all joints and tape any holes or tears made in the outer duct covering. Ensure that the vapor barrier is completely sealed.
How to fix Direct Air PHRVR100 ES Fan HRV out of balance?
Have contractor balance HRV airfolws.
What to do if the LED is flashing on my Direct Air PHRVR100 ES?
Make sure the unit is plugged in. The transformer may need replacing.
General| Brand | Direct Air |
|---|---|
| Model | PHRVR100 ES |
| Category | Fan |
| Language | English |
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