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11.6 Electrical connection
Danger of electric shock!
Dangerous electric voltage!
All work relating to the electrical installation
may only be carried out by designated spe-
cialist personnel (electrician or qualified per-
son with equivalent training).
The customer is responsible for monitoring
the qualifications of the specialist personnel.
Potential component damage due to elec-
trostatic discharge!
To protect the sensitive electronic compo-
nents, measures to prevent damage due to
electrostatic discharge must be taken before
the start of the installation work.
11.6.1 Connection of control voltage
The control voltage of 230 VAC is to be
applied to terminal block X1 and, from there,
is fed to the expansion board (plug ST1.1).
Depending on the unit configuration, the ter-
minal block X1 terminals for control voltage
connection are labeled „FL“ and „FN“ in case
of additional fusing implemented.
11.6.2 Connection of interlock
(safety) system
The so-called interlock (safety) system is
located between terminals 1 and 2 of the X1
terminal block. Safety equipment can be
wired (also in series) into the interlock
(safety) system. If the interlock (safety) sys-
tem is open, the high-pressure nozzle system
does not start or the operation is interrupted.
In air conditioning, it is standard to incorpo-
rate a max. hygrostat in the interlock (safety)
system. The max. hygrostat is used as a
safety feature in case of a malfunction of the
humidity sensor.
Danger of electric shock!
Dangerous electric voltage!
After the initial operation of the unit, a 230
VAC voltage is present at terminal 1 of ST1.1
(expansion board).
The interlock (safety) system is not closed
when delivered ex-factory!
The contacts, which are connected to termi-
nals 1 and 2 of terminal block X1 must be
potential free and suitable for switching of
230 VAC.
WARNING
!
Please note
NOTICE
WARNING
!
2 1 Terminal block X1
Terminals 1/2 wiring on terminal block X1 for con-
nection of the safety (interlock) system
Safety (interlock) system
Please note
Please note
