Hitachi PSC-A1T Installation And Operation Manual page 22

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OPERATION PROCEDURE
16
7
CAUTION:
- The control timer has a built-in back-up
battery and the clock function is available
within 2 weeks in case of power failure.
If the power failure continues more than
2 weeks, set the present time again.
- The RUN indicator is turned on at ON
time and turned off at OFF time.
In case that that the indoor unit operation
is started or stopped by the remote
control switch or the central station used
together with the timer, the RUN
indicator is not changed.
- The flickering of the RUN indicator
shows the abnormal condition of the
Timer.
Check to ensure that the wiring
connection and the setting of dip
switches are correct.
In the case that the RUN indicator is still
flickered after checking, contact your
distributor or dealer of HITACHI.
CAUTION:
- It may take approximately 15 seconds to
start (or stop) operation after ON time (or
OFF time) according to the controller used
together.
- The operation can not be started or
stopped during the setting mode condition.
After the completion of setting, set the
Timer at the monitor mode. (After 3
minutes with leaving the Timer at the
setting mode, the Timer is changed to the
monitor mode automatically.)
- In the case that the Timer is used with the
central station (PSC-A64S), the setting by
the central station is required. Refer to the
"Installation & Operation Manual of Central
Station" for details.
- During the timer pause mode, the mode is
not changed to setting mode by depressing
the "SET/MONITOR" switch.
- In the case where the ON time or OFF is
passed during power failure, the timer
setting is not available. After recovery the
power supply, the air conditioner is
stopped. However, depending on the
model and the setting of the controller to
be used with the control of those
controllers may have the priority. Consult
your distributor or dealer of HITACHI for
details.