Vent-Axia Air Minder Plus User Manual - page 5
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AIR MINDER plus
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1:1 Normal Running Mode (Daytime Running shown).
Typical Displays:
Daytime: Medium Speed:
On 06:00 / Off 22:30
Night Time: Low Speed:
On 22:30 / Off 06:00
1:2 Defrost
Mode
When the external intake air temperature is between
0ºC and -5ºC the defrost mode will automatically
activate. This mode will reduce the supply airflow
rate and increase the extract airflow rate to prevent
frost forming on the heat exchanger.
When the external intake air temperature is below -
5ºC the defrost mode will automatically activate. This
mode will automatically switch off the supply fan, the
extract fan will continue to run at a reduced rate to
prevent frost forming on the heat exchanger.
1:3 Defrost Bypass Mode (AM290FB & AM375FB models only)
The intake air temperature has fallen to -1°C
or below.
A Damper within the Heat Recovery Unit has
opened to bypass the heat recovery cube, when
the intake air temperature rises above 0°C the
damper will close and normal running mode
will resume.
1:4 Heating Failure (Protective) Mode
FLASHING
(Activates in the event of central heating failure).
When the heating system in the dwelling fails to
maintain an internal temperature of 5°C. (e.g. Boiler
failure), the Heat Recovery Unit will automatically
switch off and ‘Heating Failure’ will be displayed on
the controller.
1:5 Central Heating Failure
(Fan Re-Starting) Mode
FLASHING
The Heat Recovery Unit will continue to attempt to
re-start by checking the internal temperature for a 10
minute period every 60 minutes. When the Extract
temperature rises above 5°C the unit will revert back
to normal running mode.