Blue Box - 48
4.17.1 Microprocessor controller for /LE and HP/LE versions
-
Versions SIGMA 2002 /LE and SIGMA 2002 HP/LE with two compressors are equipped with an
m
CHILLER
controller.
- Versions SIGMA 2002 /LE and SIGMA 2002 HP/LE with four compressors do not have an integral controller and
therefore an external controller, or thermostats, must be connected to the auxiliary terminals 1-21, 1-31, 1-41
and 1-51.
Consult the electrical diagram attached to the unit.
4.17.2 RS485 serial interface (optional)
All units can be equipped with a serial interface board for supervision or remote diagnostic
functions via a computer.
The serial interface board plugs into a dedicated slot on the connection board.
Connection to the supervision or remote diagnostics serial line is executed in compliance with standard RS485
and is achieved by means of the serial interface boards.
Models from 3.2 to 13.2 with two scroll compressors and
m
CHILLER controller
When the serial interface board is inserted the Carel communications protocol is available.
A conversion gateway is required for Modbus-jbus and BacNet protocols.
Models from 14.4 to 26.4 with four scroll compressors and pCO
2
controller
When the serial interface board is inserted the following communications protocols are available: Carel, Modbus-
jbus, BacNet. If a connection is to be made with networks that utilise the Lon-Talk protocol, a dedicated board
must be installed.
In this case, a conversion gateway is not required.
Summary of Contents for SIGMA 2002
Page 2: ......
Page 99: ...Blue Box 93 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 SIGMA 2002 DC MODELS 3 2 13 2...
Page 100: ...Blue Box 94 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 SIGMA 2002 DC MODELS 14 4 26 4...
Page 101: ...Blue Box 95 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 HP MODELS 3 2 8 2 14 4 16 4...
Page 102: ...Blue Box 96 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 HP MODELS 9 2 13 2 18 4 26 4...
Page 103: ...Blue Box 97 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LE SIGMA 2002 LE DC MODELS 3 2 26 4...
Page 104: ...Blue Box 98 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LE HP MODELS 3 2 26 4...
Page 105: ...Blue Box 99 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LC MODELS 3 2 13 2...
Page 106: ...Blue Box 100 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LC MODELS 14 4 26 4...
Page 107: ...Blue Box 101 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LC HP MODELS 3 2 13 2...
Page 108: ...Blue Box 102 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LC HP MODELS 14 4 26 4...
Page 109: ...Blue Box 103 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LC DC MODELS 3 2 13 2...
Page 110: ...Blue Box 104 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LC DC MODELS 14 4 26 4...
Page 123: ......
