21
4
44
44.8.4 MICROPROCESSOR CONTROLS INSTALLED ON THE UNITS.
.8.4 MICROPROCESSOR CONTROLS INSTALLED ON THE UNITS.
.8.4 MICROPROCESSOR CONTROLS INSTALLED ON THE UNITS.
.8.4 MICROPROCESSOR CONTROLS INSTALLED ON THE UNITS.
.8.4 MICROPROCESSOR CONTROLS INSTALLED ON THE UNITS.
The KAPPA.V 2001chillers and heat pumps utilise the pCO
2
microprocessor control.
The microprocessor control pCO
2
with the program DBBB0*P20Z is able to manage a chiller or a heat pump; the
controller has 2-step capacity control over each compressor.
Correctly configured, the program can control water or air-cooled condensers fitted with plate-type exchangers,
as well as compressor operation and safety. Additional functions include condensation control during cooling,
evaporation control (for heat pump units), free-cooling management and heat recovery.
The required hardware has been optimised to maximise the utility of available inputs and outputs, while inter-
board connections and user-terminal interface are ensured by means of the pLANE, using the serial connector
RS485, dedicated for network construction.
Each unit can be connected by a 485 serial line to supervisor and/or tele-maintenance systems.
Detailed informations on the control are reported in the manual enclosed with the unit.
4.8.3 CIRCULATOR PUMP ELECTRICAL CONNECTIONS
4.8.3 CIRCULATOR PUMP ELECTRICAL CONNECTIONS
4.8.3 CIRCULATOR PUMP ELECTRICAL CONNECTIONS
4.8.3 CIRCULATOR PUMP ELECTRICAL CONNECTIONS
4.8.3 CIRCULATOR PUMP ELECTRICAL CONNECTIONS
To be enabled to work, the contacts of external interlocks must be closed. The normally open pump contactor
contacts must be connected in series to terminals 1-2 of the electric control panel.
The unit can start only if the pump of the hydraulic circuit is already working.
In the “ST” units the 1-2 contacts of the external interlocks must be short-circuited (if not necessary for the plant
necessities).
The pump must be started up before the chiller and shut down after the
The pump must be started up before the chiller and shut down after the
The pump must be started up before the chiller and shut down after the
The pump must be started up before the chiller and shut down after the
The pump must be started up before the chiller and shut down after the
latter (recommended minimum advance/delay interval: 60 seconds).
latter (recommended minimum advance/delay interval: 60 seconds).
latter (recommended minimum advance/delay interval: 60 seconds).
latter (recommended minimum advance/delay interval: 60 seconds).
latter (recommended minimum advance/delay interval: 60 seconds).
4.8.5 SERIALE RS485 INTERFACE (opzionale)
4.8.5 SERIALE RS485 INTERFACE (opzionale)
4.8.5 SERIALE RS485 INTERFACE (opzionale)
4.8.5 SERIALE RS485 INTERFACE (opzionale)
4.8.5 SERIALE RS485 INTERFACE (opzionale)
The serial card for remote supervision or remote assistance by computer is available on request
The serial card for remote supervision or remote assistance by computer is available on request
The serial card for remote supervision or remote assistance by computer is available on request
The serial card for remote supervision or remote assistance by computer is available on request
The serial card for remote supervision or remote assistance by computer is available on request
for all KAPPA.V 2001 units.
for all KAPPA.V 2001 units.
for all KAPPA.V 2001 units.
for all KAPPA.V 2001 units.
for all KAPPA.V 2001 units.
The serial board is fitted in the connection board (see figure of large board).
Connection with the serial line for supervision or tele-maintenance is made by standard RS485 and by means of
serial boards.
When the serial board is fitted, communication protocol Carel, Modbus-jbus and BacNet are available. Note that
systems using the Lon-Talk protocol require a special board.
Conversion gateways are not required.
4.8.2 POTENTIAL FREE CONTACTS
4.8.2 POTENTIAL FREE CONTACTS
4.8.2 POTENTIAL FREE CONTACTS
4.8.2 POTENTIAL FREE CONTACTS
4.8.2 POTENTIAL FREE CONTACTS
The following potential free contacts are availablei:
- 1 potential free contact for general alarm (terminals 100 - 101 - 102)
- 1 potential free contact for each compressor (option)
- 1 potential free contact for any couple of fans (opzione)
- 1 potential free contact for any circulating pump (option - Models ST)
Summary of Contents for KAPPA V 2001
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