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The speed the HRV is running at is being controlled by the internal
humidity sensor.
Other Icons
Other status icon that may be visible on the screen are listed below:
The filters need changing or cleaning, refer to the Settings Menu for
details of how to reset the timer.
Frost Protection, if this icon is constantly lit the temperature outside
is low and the speed of the HRV Supply Fan has been reduced to
prevent damage to the Heat Cell. If the Frost icon and backlight
are flashing the indoor temperature is low and both fans will have
stopped. Tap any of the fan speed number buttons to restart the
fans. If the temperature is still too cold, Frost Protection will be
activated.
Summer Bypass is in operation, air from outside is being supplied
directly to the property without recovering heat from the Heat Cell.
This is often accompanied by SUMMERboost®, both fans switch to
Speed 4 to increase the rate fresh air is supplied to the property and
stale hot air is extracted.
Press & Hold the [4] button to cancel SUMMERboost®.
The Boost Overrun timer is active and is holding the HRV at Speed 3;
this follows an external Boost switch being deactivated.
The padlock icon adjacent to the Speed 3 button indicates Boost
Inhibit is active. The HRV will not respond to external Boost switches
or the internal Humidity sensor; it is only possible to select speeds 1
or 2.
The warning icon flashing at the bottom of the screen adjacent to
the Fan icon indicates a fan or thermistor failure has been detected;
contact the installer. The corresponding icon will be flashing at the
top of the screen.
If very high temperatures are detected inside the HRV, fan failure
mode will be enabled to protect the HRV from damage.
