Valeo Aerosphere World, Operating Instructions Manual

Page: 40 / 61

Aerosphere World / Midibus
36
3.3 Command Description - Test Operation
3.3.1 Test Mode
This mode is used to diagnose the system checking the inputs and activating
the outputs.
To access this mode, perform the following the steps:
- Press the keys + . The display will indicate - -, asking for entering
the access password. The access password is 14.
- Use the key for increasing the first digit and key for decreasing the
second digit until the correct password is shown on the display.
- Press to confirm. In case the typed password is incorrect, the panel
will return to indicate the vehicle internal temperature. After verifying the
password, the panel will indicate
,so that all inputs may be tested.
- Press for alternating between the inputs and the outputs.
- By pressing , the panel will indicate or , depending whether it is
an input or an output. When it is an input , the ventilation LED speed 2
will show the input status. If it is blinking the input is off, otherwise it is on.
- When you select an output , press for turning it on and/or off. The
ventilation LED speed 2 will be on indicating the output is on.
- Press or for alternating between other inputs or outputs. When
you alternate the output function, the previous function will be turned off.
- To exit a mode selected input or output and moving to another, press
and by a second press leave the test mode.
The function allows the A/C system to operate without considering
internal temperature. This function is used when it is necessary to turn on the
A/C for testing and the temperature inside the bus is not enough to allow the
A/C to work. All other protections are enabled in this mode.
Input Description LED on LED blinking
Pressure switches
input Both pressure
switches are OK
(closed) One or both pressure
switches in fail status.
Check connections and
pressure switches.
Ice sensor -
freezing of
evaporator coil
input Ice sensor OK. Ice sensor indicates that the
system is frozen. Check ice
sensor and connections.
Heating system
enabled -input
indicating the
heating system is
installed. Heating board
GL-W002
available,
enabled and
operating Heating board (GL-W002)
not installed.
Fig. 6 Test Operation Input Readings
Output Description
Turns on blowers at low speed
Turns on blowers at medium speed
Turns on blowers at high speed
Opens air flap
Turns on fans (condenser motors)
Turns on water pump
Opens heating valve (30 %) (in case there is heating)
Opens heating valve (65 %) (in case there is heating)
Opens heating valve (99 %) (in case there is heating
Gas charge function, allows refrigeration to take place,
independently of the control conditions
Fig. 7 Test Operation Output Readings