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

Fail- Description Operational bahavior in fail condition
ure
Alternator voltage To restore normal operation, the AUTO key
above 33 Volts. must be pressed and pressed a second
time after a period of at least 10 seconds. If
the failure persists the failure indication will
come on again.
Alternator voltage The system operates with reduced perfor-
below 21 Volts. mance. When the alternator reaches the
normal level, the system will resume its
operational condition before fail taking into
account the possible change of control pa-
rameters.
Alternator voltage To restore normal operation, the AUTO key
below 18 Volts. must be pressed and pressed a second
time after a period of at least 10 seconds. If
the failure persists the failure indication will
come on again.
Battery voltage When the battery reaches the normal level,
above 31 Volts. the system will resume its operational con-
dition before fail taking into account the
possible change of control parameters.
External temperature When the external temperature is above
below the minimum re- 8°C the system will resume its operational
quired for operating condition before fail taking into account the
the system (8 °C) with possible change of control parameters.
reheat mode enabled.
Fig. 5 Failure Code Indications
Fail- Description Operational bahavior in fail condition
ure
Indicated when inter- Cooling mode is enabled.
nal temperature is Reduce set-point floor-heating system
higher than set-point in
case of using floor-
heating system.
or
when reheat key is Reheat system cannot be used.
pressed and the set-
temperature is higher
than the internal tem-
perature.
Fig. 5 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 / Midibus
35