Commissioning; Master/Slave Unit Operating Status; Operating Information For Each Unit (Menu 1 "Operating Info'') - Carrier CCU Regelungshandbuch

11 - COMMISSIONING

1. Power up.
2. The yellow voltage present indicator on the console comes on.
3. Adjust the setpoint and settings parameters as explained in sections 4 and 5.
4. Press the power button (if the green LED does not come on, check whether parameter P99 is locked "P99 = 1").
5. T he green indicator flashes if the external control contact is open; if the timer is not set to operate the unit then it remains on standby.
6. If the green indicator comes on, the unit will be started.

11.1 - Master/slave unit operating status

• Stopped:The units are operating individually. The unit in question is authorised by the console button and by the external safety
contact. The unit is not faulty, it is powered up. The unit is stopped by the on/off control (contact or timer).
• Forced stop: The unit in question is stopped by the console button or by the external safety contact. It is not faulty, it is powered
up.
• Operating: The units are operating individually. The unit in question is authorised by the console button and by the external
safety contact. The unit is not faulty, it is powered up. The unit is authorised by the on/off control (contact or timer).
• Automatic operation: The units are operating as master/slaves. At least one unit is configured as backup or additional. The
unit in question is authorised by the console button and by the external safety contact. The unit is not faulty, it is powered up.
The unit is not controlled by the on/off (contact or timer). The unit is not selected as a backup or additional unit.
• Override: The units are operating as master/slaves. At least one unit is configured as backup or additional. The unit in question
is authorised by the console button and by the external safety contact. The unit is not faulty, it is powered up. The unit is controlled
by the on/off (contact or timer).
• Standby: The units are operating as master/slaves. At least one unit is configured as backup or additional. The unit in question
is authorised by the console button and by the external safety contact. The unit is not faulty, it is powered up. The unit is not
controlled by the on/off (contact or timer). The unit is selected as a backup or additional unit, but it is not operating as a backup
or additional unit.
• Backup: The units are operating as master/slaves. One unit is configured as backup or additional. The unit in question is
authorised by the console button and by the external safety contact. The unit is not controlled by the on/off (contact or timer).
The unit is selected as a backup or additional unit, it is operating as a backup but not as an additional unit.
• Additional: The units are operating as master/slaves. One unit is configured as additional. The unit in question is authorised
by the console button and by the external safety contact. The unit is not faulty, it is powered up. The unit is not controlled by the
on/off (contact or timer). The unit is selected as an additional unit, it is operating as an additional unit but not as backup.
• Additional and backup: The units are operating as master/slaves. One unit is configured as additional. The unit in question is
authorised by the console button and by the external safety contact. The unit is not faulty, it is powered up. The unit is not
controlled by the on/off (contact or timer). The unit is selected as an additional unit, it is operating as an additional and backup
unit.
• Periodic restart: The units are operating as master/slaves. At least one unit is configured as backup or additional. The unit in
question is authorised by the console button and by the external safety contact. The unit is not faulty, it is powered up. The unit
is not controlled by the on/off (contact or timer). The unit is selected as an additional or backup unit and is periodically restarted.
• With non-critical fault: The unit in question is powered up. It has at least one non-critical fault, but no critical faults.
• With critical fault: The unit in question is powered up. It has at least one critical fault.
• Powered off: The CCU CONTROLLER for the unit in question is not responding. It is not powered up or the bus connection is
broken.

11.2 - Operating information for each unit (menu 1 "operating info'')

• Unit with no fault
The first line: displays the values measured by the target relative humidity and/or temperature sensors.
The second line: displays the target relative humidity and/or temperature setpoint values.
For the two values, the value displayed is the setpoint for the last control mode (heating or cooling, humidification or dehumidification).
If the measurement value is below the heating or humidification setpoint, it is this setpoint which is displayed. If the measurement
value is above the cooling or dehumidification setpoint, it is this setpoint which is displayed. If the measurement value is between
the two setpoints, the value displayed does not change.
The third line displays the unit's operating status:
• Unit stopped: The fan is stopped as are all the controls and controllers.
• Unit operating: The one-speed or variable-speed fan is operating, the controls are authorised, the temperature setpoints are
calculated based on the normal value.
• Unit in fan delay: Unit shut down has been requested, the controls and controllers are no longer authorised. The fan operates
until post ventilation is finished.
• Unit stopped by the safety contact: The external safety contact is open. The unit stop has been requested.
• Unit faulty: the last fault that appeared is displayed with a text indicating the components which have been stopped and the
first checks to be carried out before acknowledging the fault.
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