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ISS0011R10_A_EN.doc
7.
AUTOMATIC MODE
•
Selectable either on the remote or on the display-unit pressing the key for at least 5 seconds (in the latter case
only with the machine previously on STANDBY, no ongoing malfunctions and after DIAGNOSTICS,
specified below). In this mode, also signalled locally on the display-unit when LED DL4 turns on, either the
COOLING or FAN function is selected automatically depending on the constantly monitored room
temperature:
i.
-If Tamb>23°C the fan works at minimum speed;
ii.
-If Tamb>23°C the system works in the cooling mode with fan speed proportional to the extent the
this temperature differs:
iii.
if 23°C<Tamb<25°C minimum speed is selected,
iv.
if 25°C<Tamb<27°C medium speed is selected, if Tamb>27°C maximum speed. After each
variation, fan speed remains constant for at least 3 minutes to avoid annoying hunting.
•
All the various sub programmes of the general automatic function will work in the same way and have the
same alarms defined in the single operating modes.
8.
PROGRAMMING TIMES
•
Programming entails activating two operating intervals in the 24-hour period, signalling when the function
starts on the display-unit with LED DL3. The remote control communicates the “current” time to the board in
question at each transmission. The latter stores the current time in the eeprom every 10 minutes so in the
event of a blackout (besides its actual duration) machine activation times are no more than 10 minutes.
Machine functioning mode will be that corresponding to the activation mode.
9.
SPECIAL FUNCTIONS
•
- DIAGNOSTICS: this is started with the machine on STANDBY, pressing the key on the display-unit for at
least 5 seconds. The corresponding LEDs blink for 5 seconds after which the indication “AUTOMATIC” is
activated (continuing until the ongoing phase finishes) and simultaneously the fan first works at minimum
speed, then at medium speed and lastly at maximum speed 3 seconds each time. The compressor is started at
the end of fan speed scanning (without observing any 3 minute pause and for any temperature measured by
Tamb) for a time equal to Tdiag with fan fixed at maximum speed. At the end of this phase, the unit goes to
the AUTOMATIC mode (maintaining the indication already given) as described above.
•
In the case of a blackout the unit must store the previous mode in the eeprom and resume the function that
was interrupted the instant power returns (except for the DIAGNOSTICS function, which, in the case of a
blackout, the machine most set itself on STANDBY).
Summary of Contents for ISSIMO 11
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