External enabling contact Op-
eration/Standby
In addition to being operated
with the controller or the cabled
remote control, the unit can be
switched on (normal operation)
and switched off (Stand-By) via
an external potential-free contact
(normally-closed).
The contact is equipped with a
wire jumper in the factory. The unit
is enabled in this condition.
If the contact is opened, the unit
is disabled and OFF is shown
on the display.
Switching
cooling/heating mode
This changeover contact enables
the unit to be switched to cooling
mode or heating mode from
a remote location.
The switching of operating
mode must be implemented
both through the connection/
disconnection of the external
changeover contact and through
the setting in the controller display.
If the contact is open and the unit
is switched to cooling mode
(snowflake) via the setting in
the controller display, the unit
operates in cooling mode.
If the contact is closed and the unit
is switched to heating mode (sun)
via the setting in the controller
display, the unit operates in
heating mode.
General alarm signal ALARM
230V
The connection of a general alarm
signal, for example, for signalling
or for further processing to a
building control system is possible
as standard equipment. 230V is
output here.
There is no voltage present at
this contact during normal unit
operation. As soon as a fault
is diagnosed on the unit, 230V
is present on the respective
terminals of the alarm contact.
Terminal blocks RVS 220-260 DC
1112
10
8 9
7
6
5
4
3
2
1
Rs485 +
Rs485 -
Umschaltung Kühlen / Heizen
Externe Freigabe
Sammelstörmeldung 230V (L)
Sammelstörmeldung 230V (N)
nicht verwendet
nicht verwendet
nicht verwendet
nicht verwendet
Not used
Not used
Not used
Not used
General alarm signal 230V (N)
General alarm signal 230V (L)
External enabling
Switching/hea
-
ting switching
Modbus interface RS485
The unit has a Modbus interface
RS485 as standard. This enables
the querying or stipulation of
setpoints, system temperatures,
operating modes etc. A detailed
list of all necessary information
can be obtained on request.
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