31 © STULZ SpA . – all rights reserved EN/39B/06.2018
SAL
A user interface (keypad) can be connected to C2020 to display information about working
conditions, status of the air conditioner and eventual alarms. Ordering accessory ACTKPDC1010H,
this keypad will be supplied in wall-mounted version (not inside the unit), provided in a separate
plastic box. When two or more units are linked in a sequencing LAN, with only one keypad
connected to the master controller, it's possible to display data of all units, selecting it via the keypad
itself.
For more information about the C2020 controller, please refer to its specific manual.
C2020 controller can be (optionally) linked to a supervisory / telemonitoring system via serial line,
providing it with the necessary options.
INFORMATION
For controller input / output assignation, please refer to the electrical diagram on manual part 2,
specific for each unit.
C2020 Internal Unit
BMS
(optional)
WIB1000 / WIB1485 or
accessory ACTHKEY
PRG
SPI SLAVE USER
Keypad
Communication with
the external unit
Sequencing
(optional)
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