
14
Air 70 Rev. D
5.5.4 Connecting optional On/Off switch
If the Air 70 is connected to a permanent 230 V power source,
the appliance - both the basic and the Plus versions - must be
equipped with the optionally available two-pole On/Off switch.
It can be placed in the appliance on the left-hand side; a break-
out opening for this switch is provided.
At the location of this permanent power supply, a hole must be
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template used to drill the holes from inside the unit (see §5.4
item 4).
Refer to the installation instructions that come with this switch
for the electric connection of this On/Off switch.
Control pcb
Breakout opening
switches
Position junction box
230 V
Chapter 5 Installation
5.5.5 Connecting MODBUS connector (only possible for Plus version)
The Air 70 supports the MODBUS protocol.
A 3-pole (detachable) screw terminal X11 is available on the
plus pcb for connecting a MODBUS link. MODBUS can be
used to connect the appliance to a building automation system.
MODBUS connector
X11 on Plus pcb
Control pcb
Plus pcb