Failure Operation - Control Panel Functions Not Available - Spheros Aerosphere World Betriebsanleitung

Fail- Description Operational bahavior in fail condition
ure
Alternator voltage All the functions are disabled.
below 18 Volts. To restore the normal operation the func-
tion must be turned off and turned on again
after 10 seconds with AUTO key. If the fail-
ure persists the indication will come again.
Battery voltage All the functions are disabled.
above 31 Volts. When the battery reaches the normal level
the system delay 10 seconds and turn on
again according conditions before failure
happened.
External temperature The compressor and condenser fans are
below the minimum re- turned off. When the external temperature
quired for operating is above 8 ° C the system delay 3 minutes
the system (8 ° C) in and turn on again.
case the reheat mode
is enabled.
Indicated just when the Just indicates the REHEAT system cannot
REHEAT key is be used.
pressed and the set-
point temperature is
higher than the internal
temperature.
Indicates high temper- Floor heating system must be reduced,
ature in passenger cooling mode is blocked.
compartment.
Pressure switch The compressor is turned off.
failure. When the failure is gone the system delay
3 minutes and turn on again.
Fig. 4 Failure Code Indications
Fail- Description Operational bahavior in fail condition
ure
Panel without signal The panel will only indicate
EBM feedback. The system control will be not affected with
(OPTION) this failure.
Fig. 4 Failure Code Indications

3.2.2 Failure Operation - Control Panel Functions not available

When the ignition is switched on, the control panel and the main relay board
intercommunicate. In case there is an intercommunication failure, the control
panel will indicate after 15 seconds and the main relay board will
automatically activate the AUTO function with the set-point of 22 ° C. After the
first communication, the system works with the last temperature setting.
This is a failure condition, although it enables the equipment to work even
without communication between the modules.
If the equipment is operating and there is a communication failure, it will
continue operation on the selected function until the ignition is switched off.
Aerosphere World / Irisbus
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