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10
OPERATION PROCEDURE
3. Press the "GROUP" switch again. The first digit is
flickered (the maximum unit No. is indicated at first).
4. By pressing the "UNIT SELECTION" switch, the unit
confirmed to connect No. bigger than minimum unit No.
is indicated sequentially.
(Set the maximum unit No.)
5. By pressing the "GROUP" switch for more than 3
seconds again, the group setting is registered.
NOTE:
- If "RESET" switch is pressed or any switch is not pressed for more than 30 seconds, group
registration mode is changed to the normal mode automatically. (During this time, group
registration is not set.)
- Group registration is not available during unit operation. If this procedure is performed, "NO
FUNC." is indicated.
- Check to ensure that the same unit No. setting was not performed in case of connecting two or
more controllers. In this case, alarm code "E002" may occur at the controller having bigger
address. At that time, set correct address No. to the controller having "E002" alarm code.
7.2. SELECTION FOR OPERATED UNIT AND UNIT STATE MONITORING
The controller controls the maximum 8 chiller units for individual or simultaneous. It is possible to
operate the unit and check operating state of the units.
NOTE:
At the time to select the unit, unit No. is changed by pressing "UNIT SELECTION" switch.
However, the unit not performed for group registration is not indicated.
RUN
Lamp
COOL
UNIT No.
TIMER
MULTI
INLET
SET TEMP.
INDVDL
EMG.STOP
OUTLET
TEMP. PR.
HEAT
NO FUNC.
DEMAND
H.RCV.
1
2
3
4
5
6
7
8
A/C
H.STRG
LOCAL
ABNML
CHECK
UNIT SELECTION
RUN/STOP
MODE CHANGE
A/C／H.STRG
DISP.MODE
TIMER
OPTION
GROUP
TEMP.
UNIT No.
INDVDL
1
2
3
4
UNIT No.
INDVDL
1
2
3
4
UNIT No.
INDVDL
1
2
3
4
℃
MPa
RESET
1
CHECK
Operating State of Each Unit
(The figure in next page shows
the case of individual control,
air-conditioning mode and
setting temperature of 20 °C.)
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