2 - GENERAL DESCRIPTION
2.1 - General
•Single or dual circuit
•Air or
•
•Split systems
* At present only
Safety circuits are constantly monitored by
All
•Local mode: the machine is controlled by commands from the user interface.
•Remote mode: the machine is controlled by remote contacts
•CCN mode: the machine is controlled by commands from the Carrier Comfort Network (CCN). In this case a data communication cable is used to connect the unit to the CCN communication bus.
The operating mode must be chosen with the Operating Type selection button described in section 4.2.1.
When the
2.2 - Abbreviations used
In this manual the circuits are called circuit A and circuit B. The compressors in circuit A are labelled A1, A2, A3 and A4. Those in circuit B are labelled B1, B2, B3 and B4. A1 and B1 are the lead compressors.
The following abbreviations are frequently used:
AI | - | Analogue Input |
AO | - | Analogue Output |
CCn | - | Operating type: CCN |
CCN | - | Carrier Comfort Network. |
|
| This is the Carrier communication network |
DI | - | Discrete Input |
DO | - | Discrete Output |
EXV | - | Electronic Expansion Device |
LED | - | Light Emitting Diode |
LOFF | - | Operating type: Local off |
- | Operating type: Local operation | |
MASt | - | Master unit operating type (master/slave assembly) |
RCPM - | Reciprocating Compressor Protection Module | |
rEM | - | Operating type: by remote control contacts |
SCT | - | Saturated disCharge Temperature |
SIO | - | Standard Input/Output - internal communication bus |
|
| linking the basic board to the slave boards |
SST | - | Saturated Suction Temperature |
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