5 - PRO-DIALOG PLUS CONTROL OPERATION
5.1 - Start/stop control
The table below summarises the unit control type and stop or go status with regard to the following parameters.
-Operating type: this is selected using the start/stop button on the front of the user interface.
-Remote start/stop contacts: these contacts are used when the unit is in remote operating type (rEM). See sections 3.6.2 and 3.6.3.
-CHIL_S_S: this network command relates to the chiller start/stop when the unit is in CCN control (CCn). Vari- able forced to disable: the unit is halted. Variable forced to Enable: the unit runs in accordance with schedule 1.
-Start/Stop schedule: occupied or unoccupied status of the unit as determined by the chiller start/stop program (Schedule #1). Used when the unit is equipped with an optional CCN/clock board, otherwise the chiller occupied mode is forced to occupied all the time.
-Master control type. This parameter is used when the unit is the master unit in a two chiller lead/lag arrange- ment. The master control type determines whether the unit is to be controlled locally, remotely or through CCN (this parameter is a Service configuration).
-CCN emergency shutdown: if this CCN command is activated, it shuts the unit down whatever the active operating type.
-General alarm: the unit is totally stopped due to failure.
| ACTIVE OPERATING TYPE |
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| STATUS OF PARAMETERS |
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| TYPE | MODE |
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| REMOTE | MASTER | START/STOP | CCN | GENERAL |
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| START/STOP | CONTROL | SCHEDULE | EMERGENCY | ALARM |
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| LOFF | rEM | CCN | MASt | CHIL_S_S | CONTACT | TYPE | MODE | SHUTDOWN |
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| - | - | - | - | - | - | - | - | - | - | Enable | - | - | Off |
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| - | - | - | - | - | - | - | - | - | Yes | - | Off | ||
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| Active | - | - | - | - | - | - | - | - | - | - | - | Local | Off |
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| - | - | Active | - | - | - | - | - | - | Unoccupied | - | - | Local | Off |
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| - | - | - | Active | - | - | - | Off | - | - | - | - | Remote | Off |
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| - | - | - | Active | - | - | - | - | - | Unoccupied | - | - | Remote | Off |
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| - | - | - | - | Active | - | Disable | - | - | - | - | - | CCN | Off |
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| - | - | - | - | Active | - | - | - | - | Unoccupied | - | - | CCN | Off |
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| - | - | - | - | - | Active | - | - | Local | Unoccupied | - | - | Local | Off |
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| - | - | - | - | - | Active | - | Off | Remote | - | - | - | Remote | Off |
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| - | - | - | - | - | Active | - | - | Remote | Unoccupied | - | - | Remote | Off |
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| - | - | - | - | - | Active | Disable | - | CCN | - | - | - | CCN | Off |
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| - | - | - | - | - | Active | - | - | CCN | Unoccupied | - | - | CCN | Off |
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| - | Active | - | - | - | - | - | - | - | - | Disable | No | Local | On |
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| - | - | Active | - | - | - | - | - | - | Occupied | Disable | No | Local | On |
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| - | - | - | Active | - | - | - | On | - | Occupied | Dsable | No | Remote | On |
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| - | - | - | - | Active | - | Enable | - | - | Occupied | Disable | No | CCN | On |
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- | - | - | - | - | Active | - | - | Local | Occupied | Disable | No | Local | On | |
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- | - | - | - | - | Active | - | On | Remote | Occupied | Disable | No | Remote | On | |
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- | - | - | - | - | Active | Enable | - | CCN | Occupied | Disable | No | CCN | On | |
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5.2 - Heating/cooling selection
On heat pumps, heating/cooling selection can be controlled differently depending on the active operating type:
•Locally on the unit, using operating types
•Remotely using the heat/cool selection
•Via a CCN command when the unit is in CCN operating type (CCn).
The current heat/cool operating mode on the unit is indicated by item 4 in the Information menu and by the heat/cool LEDs on the summary interface.
PARAMETER STATUS
ON/OFF | CONTROL TYPE | HEATING/COOLING | REMOTE HEATING/ | HC_SEL | OPERATING MODE |
STATUS |
| SELECTION IN LOCAL MODE | COOLING CONTACTS |
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Off | - | - | - | - | Cooling |
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On | Local | Cooling | - | - | Cooling |
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On | Local | Heating | - | - | Heating |
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On | Remote | - | Cooling mode | - | Cooling |
On | Remote | - | Heating mode | - | Heating |
On | CCN | - | - | Cooling | Cooling |
On | CCN | - | - | Heating | Heating |
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