Webasto Diavia TONALE Manual De Instrucciones página 17

Turning on the refrigeration system
IN DRIVE MODE:
- Start up the engine.
- If the control device is On (the temperature in the cell on the control display is shown in °C), the
refrigeration system automatically starts up.
- If the control device is Off (see System shutdown – the word "OFF" is shown on the control
panel display), turn on the instrument and start up the system by pressing "ON-OFF"
Locking and unlocking the keys
You can lock the control device by pressing the
them in a central position; the word "PoF" blinks on the display for a few seconds.
Now only the temperature inside the cell and the Set point can be viewed.
To unlock the keys, press the keys simultaneously once more and the word "Pon" blinks
on the display for a few seconds.
Setting the temperature in the refrigeration cell
The instrument provides a shortcut to access "Set Point" regulation (used to set the desired tem-
perature inside the refrigeration cell). It also has two Menus arranged on two levels and used to
display the programming parameters and their settings (see Accessing the Programming
Menu).
To display the "Set Point", press the "SET"
is displayed in °C (setting for the desired temperature inside the refrigeration cell).
To modify the "Set Point" press the "SET"
The current setting appears and the compressor led starts blinking (see FIG. 3); pressing the "UP"
or "DOWN" keys lets you modify this parameter.
To save the new setting, press the "SET"
ically, wait at least 15 seconds before pressing any other key. The display with the new tempera-
ture "Set Point" blinks for a few seconds and then displays the current temperature inside the
cell.
keys simultaneously; that is, by pressing
, key and release it immediately and the Set Point
key and keep it pressed for 2 seconds.
, key once more or, to exit programming automat-
ENGLISH
The neutral zone function makes it possible to keep the "Set Point" temperature stable inside the
refrigeration cell, automatically activating the cooling or heating cycles. The control device auto-
matically selects the needed function, allowing you to transport materials that must avoid exces-
sive cooling in the case of cold climates. The function is enabled through the db parameter db
(n, y) (when db = y the function is on; when db = n the function is off).
. The cooling function is achieved by activating the compressor when the temperature is above the
"Set Point". The compressor is automatically shut off when the "Set Point" has been reached.
The heating function is achieved by simultaneously activating both the compressor and the super-
heated defrost device when the temperature drops below the "Set Point". The compressor and
the defrost device are automatically turned off when the "Set Point" is reached.
This procedure is to be performed in case of a system performance problem. Such problems are
noted by the excessive accumulation of ice on the refrigeration unit (very damp goods, very low
operating temperature). Activate by pressing the "DEFROST"
2 seconds. The defrost led blinks when the defrost is running (see FIG. 3). The programmed de-
frost has a maximum duration of 8 minutes (R134a) or 5 minutes (R404A). When this time has
elapsed, a drip time is set before the refrigeration system automatically starts up again. If the de-
frost conditions do not exist (e.g. temperature detected by the probe inside the refrigeration unit
is higher than the defrost off setting), the operation is not performed.
Neutral Zone Operation
(Only with R404A gas)
Activating the DEFROST cycle
key and keeping it pressed for
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