3.1.2.8
Interfaces
FSL
‑
CONTROL II masters provide 3 digital inputs and
3 digital outputs. You can use these for the following or
for other functions:
Inputs
–
Frost protection hardware:
Additional frost
protection sensor, e.g. capillary tube sensor with
a digital output, as an additional means of
switching units safely off if there is a risk of
freezing.
–
Window contact:
As soon as a window is
opened, the master and slave devices in the
room (connected via a communication cable)
will be switched off.
–
Changeover function:
Allows for changing
from heating to cooling and vice versa in 2-pipe
heat exchangers.
–
Fire protection:
Master and slave devices are
switched off if a signal is received at the corre-
sponding input.
–
PIR:
'Occupied' mode can be manually enabled.
Outputs (all contacts can be configured as NO or
NC contacts).
–
Alarm relay:
Frost protection
–
Activation relay:
Signal regarding a heating or
cooling request in changeover operation.
–
Analogue output:
No power
Digital inputs
Factory setting: not configured
Digital outputs:
Max. contact load of relays: 230 VAC, 2 A
Control of ventilation units
FSL
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CONTROL II > Functional description
Single room control system FSL
‑
CONTROL II
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