NOZ2 M
ANUAL
I
NSTALLATION
Manual version 6.0 - North America (10-03-2017)
en-37
en
2.11 Installing external controls
2.11.1 Special points regarding external controls
Inputs on the unit i1, i2, i3 (11, 22, 33)
Only for models with automatic
CHIPS
control
On terminal block X520, the unit has three input signal inter-
faces. For example, a timer switch or a signal from a building
management system can be connected to this.
Caution:
c
The inputs are designed for controls with potential-
free contacts, and are not to be loaded.
Caution:
c
The inputs of multiple units must NOT be connected
to each other.
Note:
n
With the setting
All units off
and with the NC
(Normally Closed) settings of function
60. Function
of inputs
, a jumper must be laid on the input for all
the subsequent connected units.
Outputs on the unit o1, o2, o3
Only for models with automatic
CHIPS
control
On terminal block X510, the unit has three signal interfaces
for an output signal. These can be used, for example, for con-
trolling the central heatingor for transmitting status reports to
a BMS.
Caution:
c
The outputs are potential-free contacts (relays).
Their maximum load is 24 V / 1 A.
Options and operation
Options and operation depend on the input or output and on
the control panel settings.
