Airedale BluCube 10-48kW - Manual (Page 13)

Condensing Units BluCube
™
Condensing Units
13
Technical Manual : 7206188 V1.6.0_07_2014
pCO5 Microprocessor
(without built-in display) 32 bit 44MHz controller.
Modbus / Carel BMS
Connection The Airedale controllers shall be able to communicate directly using the Modbus®
protocol.
The Modbus® is inbuilt within the PCO5 controller

Modbus® - JBus slave.

RTU mode (Remote Terminal Unit) with 8 bit encoding and error handling using
16 bit CRC.

Communication standard connection options of RS485 (multipoint) or RS232
(point-point).

Maximum Baud Rate of 19200.
The data communication shall be asynchronous serial, 8 data bits, 2 stop bits and no
parity (in total 11 bits/datum).
The data/parameters from the controller shall be represented within Modbus® registers,
each register containing information pertaining to temperatures, pressures, setpoint,
status, etc and is available to the site integration company in a spreadsheet format
Lon BMS Connection The Airedale controllers, using special serial cards, shall be integrated into LonWorks®
networks. The RS485 and the FTT10 standards shall be supported by the LonWorks®
serial cards.
The two types of LonWorks® serial cards shall differ by the type of interface on the
LonWorks® network side:
FTT-10A 78 kbs (TP/FT-10)
RS485 39 kbs (TP/485-39)
BacNet Protocol The BACnet protocol option shall be supplied either with a pCOWeb (Ethernet) or
pCONet (RS485) interface card.
Compressor Soft Start The electronic soft start enables the unit’s compressor motor to be ramped to speed with
the minimum full load current. Further benefits include removal of nuisance tripping,
supply voltage dips and motor overheating.
Power Factor Correction When applied to the motors of each compressor, the compressor power factor is
controlled to a minimum operating value of 0.95 at the full operating capacity. This
satisfies many supply authorities that may impose surcharges on equipment with power
factor less than 0.95.
Phase Monitoring Relay A phase sequence relay is available for units containing 3 phase scroll compressors, to
prevent possible damage by running the compressor in the wrong direction.
Phase Rotation Relay A phase sequence relay shall be available for units containing 3 phase scroll
compressors, to prevent possible damage by running the compressor in the wrong
direction.
Coil Guards Guards can be fitted to each of the outer coils to protect against damage.
(Cooling only units).
Compressor Attenuation Compressor attenuation shall be provided if required in low noise applications.