SystemAir Combi Unit Genius Installation, Operation And Maintenance Instructions page 58

10.6.4 Analogue Outputs
The fans operate with 0 ... 10 V. The actual performance can be derived by these outputs.
Example: 5 volts correspond 50 % power, 7 volts correspond 70 %.
Analogue outputs
AA1 Supply air fan control
AA2 Extract air fan control
AA3 Secondary air fan control
AA4 preheater
10.6.5 Digital Outputs
Actual components status (On/Off).
Digital outputs
DA1
DA2
DA3
DA4 Rotor On/Off
DA5 Sum alarm
DA6 Storage charge pump
DA7 Heating rod HW
DA1 Relay heat pump operation
DA2 Change-over
DA3 Bypass cooling
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Operation/Control via Internet/App
Voltage
6.0 V
5.5 V
0.0 V
0.0 V
Temperature
Off
Off
Off
On
Off
Off
Off
see Settings
After the switch-off point has been reached (see Settings), the signal switches.It can
be used as a switch for a second heat source.
This output enables a passive cooling of a room. During commissioning, this room
must be defined as Room 2. If the current temperature of this room is higher than the
predefined setpoint, this output will switch.
This triggers a relay which switches on a fan (to be installed by the client on-site).
The fan transports cool external air into the room via a bypass pipe.
Genius - V 1.0