Operation; Iu Parameters (Sw8: Setting 0 - All In Off) - Hitachi HARC I/O Installations- Und Betriebshandbuch

6. Operation

6.1 A.C. IU Parameters (SW8: Setting 0 – All in OFF)
Code Description
AI1 Inlet temperature
AI2 Outlet temperature
AI3 Not available
AI4 Not available
AI5 Not available
AI6 Not available
AI7 Not available
AI8 Not available
DI1 Fan unit ON/OFF
DI2 Fan HIGH speed
DI3 Fan MEDIUM speed
DI4 Fan LOW speed
DI5 Alarm code
DI6 ON/OFF status
DI7 Not available
DI8 Not available
O1 Fan unit ON/OFF
O2 Fan HIGH speed
O3 Fan MEDIUM speed
O4 Fan LOW speed
O5 Heat/Cool mode
O6 Central/Local mode
O7 Alarm signal
O8 Not available
1) If some of DI2~4 are activated at the same time, the lower speed is selected.
2) If some of those terminals are not available or accesible from fan unit, then those functions are not available.
Some functions activated by local Remore Controller (ON/OFF and FAN SPEED).
All these parameters can be used for other purposes different from those indicated in the previous table. In that case, it is
recommended to keep in local mode, just to avoid the undesired performance of that parameter in case of central control.
Those functions in central mode can be operated from CSNET WEB as normal Hitachi Indoor Unit
PMML0169A rev0 - 12/2007
Connection
Temperature sensor (optional)
Temperature sensor (optional)
–
From local remote controller
From local remote controller
From local remote controller
From local remote controller
From local remote controller
From fan unit (feedback signal)
–
Unit fan: ON/OFF terminals
Unit fan: HIGH speed terminals
Unit fan: MEDIUM speed terminals
Unit fan: LOW speed terminals
Unit fan: Operation mode terminals
Local Remote Controller: Lamp
To Local Remote Controller
HARC I/O - xxxxxxxxxxxxxxxx HARC I/O - Installation Manual
Remarks Local
PT1000 Applicable
PT1000 Applicable
– –
OFF: Open Applicable
ON: Closed
Selector switch: Applicable
Selected switch is
closed circuit (1)
Alarm OFF: Open Applicable
Alarm ON: Closed
OFF: Open Applicable
ON: Closed
– –
OFF: Open Applicable
ON: Closed
OFF: Disabled Applicable
ON: Activated (2)
COOL: Open Applicable
HEAT: Closed (2)
OFF: Local Applicable
ON: Central
OFF: Alarm OFF Applicable
ON: Alarm ON
11 11 11
Central
Monitoring
Monitoring
–
Monitoring
Monitoring
Monitoring
Monitoring
–
Control
Control
Control
Control
Control