ACTIVE OPERATING TYPE |
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| STATUS OF PARAMETERS |
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| TYPE | MODE |
LOFF | rEM | CCN | MASt | CHIL_S_S | REMOTE | MASTER | START/STOP | CCN | GENERAL |
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| START/STOP | CONTROL | SCHEDULE | EMERGENCY | ALARM |
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| CONTACT | TYPE | MODE | SHUTDOWN |
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- | - | - | - | - | - | - | - | - | - | Enable | - | - | Off |
- | - | - | - | - | - | - | - | - | - | - | Yes | - | Off |
Active |
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| - | - | - | - |
| - | Local | Off |
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| Active |
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| - | - | - | Unoccupied |
| - | Local | Off |
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| Active |
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| - | Off | - | - |
| - | Remote | Off |
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| Active |
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| - | - | - | 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 |
| Active |
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| - | - | - | - | Disable | No | Local | On |
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| Active |
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| - | - | - | Occupied | Disable | No | Local | On |
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| Active |
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| - | On cooling | - | Occupied | Disable | No | Remote | On |
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| Active |
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| - | On heating | - | Occupied | Disable | No | Remote | On |
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| Active |
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| - | On auto | - | Occupied | Disable | 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 cooling | Remote | Occupied | Disable | No | Remote | On |
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| Active | - | On heating | Remote | Occupied | Disable | No | Remote | On |
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| Active | - | On auto | 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/standby operation
5.2.1 - General
The heating/cooling/standby selection applies to all units. But only 30RA/RY (liquid chillers) units, controlling a boiler and 30RH/RYH (heat pumps) units can change over to heating mode. Heating/cooling control can be automatic or manual.
5.2.2 - Heating/cooling/auto selection
The table below summarises the unit heating/cooling opera- tion, based on the following parameters:
-Control type: indicates whether the unit operates in local, remote or CCN mode. See section 5.1.
-Unit on/off status: indicates whether the unit is shut down (not authorised to start) or in operation (or authorised to start).
In automatic mode the outdoor temperature determines the | - |
heating/cooling/standby changeover based on the two |
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threshold values configured by the user (see Setpoint menu for |
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cooling and heating mode changeover thresholds). If the unit is in | - |
standby it does not cool or heat, and no compressor can be |
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activated. The diagram below summarises the operating |
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principle in automatic mode. | - |
HEATING | STANDBY | COOLING | - |
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| Outdoor |
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| temperature |
| Heating | Cooling |
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| threshold* | threshold |
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Heating/cooling/auto selection in local mode: operating mode selected via the user interface. See Information menu.
Remote heating/cooling contacts: these contacts are only active if the unit is under remote control. See sections 3.6.2 and 3.6.3.
HC_SEL: this network command permits heating/ cooling/auto control, if the unit is in CCN operating mode.
Outdoor temperature: determines the operation, if the unit is in automatic heating/cooling/standby changeover mode.
*This threshold does not apply to cooling only units that do not control a boiler.
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