Control and operation

Access and equipment of the cab

As long as the fan symbol 22 is flashing, the fan speed can be increased or reduced manually using the keys 2 or 3

Press the key 5 again, to return to automatic operation. the symbols 22 and 21 will go off, the symbol 20 is displayed again.

Air conditioning operation

Fig. 3-46 Air conditioning operation and Reheat-operation

Press the key 1 turn on the air conditioning operation. the symbol 15 is displayed. the control unit now turns the airco compressor on and off automatically. the control unit automatically adjusts the fan RPM.

Press the key 1 again, to turn off the air conditioning operation. the symbol 15 is no longer displayed, the airco compressor remains off.

Note!

In case of high outside temperature, and especially if the cab has been heated up by the sun, decrease the temperature inside the cab as far as possible before turning on the air conditioner.

Open the windows and the door for a few minutes and adjust the blower fan to maximum RPM via the keys 5 and 2.

Reheat-operation

In order to achieve a quick dehumification of the cab, as an example on morning, when setting the machine into operation, it may be advisable to briefly turn on the air conditioning operation even when the heater is allready operative.

Press the REHEAT-key 6: the symbol 14 is displayed, the compressor is constantly working, the fan of the heater and airconditioner is running at maximum RPM, the air flaps at the front window and at the legroom are open, as necessary the control unit switches on the heating so to maintain the adjusted cab temperature.

As soon as the windows are completely demisted, the Reheat-operation may be exited while pressing the REHEAT-key 6 again

Note!

To avoid overloading the starter motor and the batteries, turn on the air conditioning operation and the REHEAT-operation only after the engine is running.

The REHEAT-operation is turned off automatically after 60 minutes.

If the machine is used for a longer period of time without using the air conditioner, press the REHEAT key 6 about every 2 weeks so to turn on the airco compressor.

Recirculated air and fresh air operation

Fig. 3-47 Recirculated air and fresh air operation

The heating and air conditioning system can work either in recirculated air operation or in fresh air operation.

Pressing the key switch 8 will alternately change from recirculated air operation into fresh air operation: in recirculated air operation: 13 is displayed, in fresh air operation: 13 is no longer displayed, ll is open and an amount of fresh air is admitted into the cab (about 10%, depending on the contamination of the filters 31 and 32).

Note!

The best heating, resp. cooling effect is reached in recirculated air operation!

Air repartition

The adjustment of the air flow in the cab is achieved via the keys 9 to 12 and via the partly closing and revolving louvers 8a to 8d:

8a on the seat console

8b on the right control panel

8c on the front windshield

8d on the rear wall of the cab

To reach a maximal feeling of comfort:

For heating the air flow must be blown into the cab via the louvers 8a, 8b and eventualy 8c. This is obtained while actuating the keys 10, 11 and eventualy 12

For air conditioner operation the air flow must be blown into the cab via the louvers 8d and eventualy 8b. This is obtained while actuating the keys 9 and eventualy 12

Note!

To defrost or dehumidify the windshield quickly, blow the whole air flow only out of the louvers 8c at the front windshield and 8b on the right control panel.

In case of very high outside temperature, preferably close the louvers 8c to avoid an unnecessary warming up of the inside air along the windshield.

Changing the temperature from °Celsius to °Fahrenheit

Fig. 3-49 Switching over °Celsius - °Fahrenheit

Press the key 8 and keep it depressed. Press the key 3 at the same time. the display of the adjustet cab temperature is changed from °Celsius into °Fahrenheit.

Pressing again the keys 8 and 3 at the same time will cause the temperature to change back into °Celsius.

3.2.13Additional standstill heater (option)

As an option, Your machine can be fitted with an additional heater mounted to the uppercarriage structure, out of the cabin. This heater is aimed to improve the starting ability of the Diesel engine and the working possibilities of the machine at very low temperatures.

This heater works with Diesel fuel and is used with the machine stopped to preheat the coolant circuit of the Diesel engine and thus the warm water circuit of the air

In addition, and depending on the low temperature range planned for the machine operation, the additional standstill heater can also serve to heat various components on the machine via water to oil or water to air heat exchangers (such as splitterbox, fuel tank, batteries compartment, ...).

Operating the standstill heater

Notice!

The standstill heater can only be operated when the ignition of the machine is turned off.

If the ignition key is turned on during operation of the standstill heater, the message "SH" is displayed on the control unit on the left control console, informing that the standstill heater is on.