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4.3.3 Emergency Operation/Fire mode
When the potential-free switching contact DI2 is closed, the device goes into emergency mode/fire modes.
To access the settings: Log in as admin.
The Emergency/Fire mode settings are located in the Configuration menu: Fire function
•
Operation when alarm (stopped, only EAF, only SAF, normal run, continuous run)
•
Fan speed when fire alarm SAF, EAF
•
Pressure SAF/EAF when fire alarm (-1 means no change compared to previous operation)
Note:
A pre-
set fan speed for use during fires can be set. “-1” will deactivate this function. The fire mode is activated by closing the
switching contact DI2.
4.3.4 Exchanger Deicing
All AIR1 ventilation units have a multi-stage heat exchanger frost protection.
1st Stage
EVO-C and AZURE: Activation and control of the preheating as soon as the outside air is lower than -
4 °c
and
exhaust air is
less than 0 °c. The preheating remains active until an exhaust temperature of + 4 °c has been reached. If the pre-heating is
running for more than 3 minutes to 100%, the second stage of icing protection is changed.
EVO-R: Activation and control of the preheating as soon as the outside air is lower than-
8 °c
and
exhaust air is less than 0 °c.
The preheating remains active until an exhau
st temperature of + 4 °c has been reached. If the pre-heating is running for more
than 3 minutes to 100%, the second stage of icing protection is activated.
2nd Stage
Reduction of the volume flow to 50% (pressure to 25%) after the pre-heating was controlled for 3 minutes to 100% power. If the
pre-heating is running for more than 5 minutes to 100%, the third and final stage of icing protection is activated.
3rd Stage
Switch off the ventilation unit (closing the outside flaps).
Restarting the ventilation units
An automatic restarting of the ventilation unit takes place only after either outside air is greater than-
3 °c or exhaust air is larger
than + 4 °c.
Fan speed when fire
↑
Alarm
SAF:-1 %
EAF:-1 %
↓
Operation when alarm
Stopped
↓
Pressure SAF/EAF
↑
when fire alarm
SAF:-1 Pa
EAF:-1 Pa
↓
Summary of Contents for EVO-R
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