PREVOST X3-45 Multiplex, Maintenance Manual

Page: 1188 / 1422

Section 22: HEATING AND AIR CONDITIONING
PA1562
46
In case of failure:
1. Shut off and turn on again.
2. Check main circuit breaker and overheat
fuse.
3. Have system repaired in a specialized shop.
9.8.4 Timer Operating Instructions (Webasto)
FIGURE 49: WEBASTO
22191
These instructions refer to the timer illustrated in
figure 49. They are the same instructions
provided in the Webasto instruction booklet,
provided with your vehicle.
Remaining Operating Time
The remaining operating time refers to the
period of time the heater still continues to remain
in operation. It may be changed while the heater
is in operation.
Setting the Digital Timer
After the power has been connected, all
symbols on the digital display are flashing. The
time of the day and the day of the week must be
set.
All flashing symbols of the timer can be set by
means of the Forward (9) or Reverse (8)
buttons.
When buttons (8) and (9) are pressed for more
than 2 seconds, the quick digit advance mode is
activated.
Setting the Time and Day of the Week
1. Press button (5) for more than 2 seconds
(time display flashes).
2. Press (8) or (9) button to set the time of day.
3. Wait 5 seconds. The time of day is stored
(time of week flashes).
4. Press (8) or (9) button to set the correct day
of week.
5. Wait 5 seconds. The day of week is stored.
Viewing the Time (Ignition ON)
Continuous display of current time and day of
the week.
Viewing the Time (Ignition OFF)
Briefly press button (5) to display current time
and day for 5 seconds.
SWITCHING HEATER ON (INSTANT
HEATING)
With Ignition ON:
Press button (7). Heater is switched on
(continuous operation) and continues to operate
until button (7) is pressed again or ignition is
switched off.
NOTE
If the ignition is switched off while heater is in
operation, the remaining operating time of 5
minutes flashes on the display and the heater
will continue to operate for this period of time.
With Ignition OFF:
Press button (7). Heater is switched on for
preset operating time (the factory-set heater
operating duration is 60 minutes)
SWITCHING HEATER OFF
Press button (7). The heater starts its after-run
cycle and switches off thereafter.
Presetting Operating Duration
1. Press button (6). Memory location number
flashes.
NOTE
By repeatedly pressing button (6), starting
time 2 or 3 can be preset.
2. Press button (8) or (9) until correct startup
time is set.
3. Wait 5 seconds. Preset starting time is
stored and day of week flashes.