Caravan Control Unit Vehicle Interior Climate Control, Function - GF54.21-D-5017TSA
Model 907
with code JA3 (Intelligent body control.)
General
The A/C control is a basic function of the MB Advanced Control control unit (N175).
The MBAC can control the following equipment for the A/C control in the vehicle interior and the hot water:
- Air conditioning
- Heating system
- Roof ventilator
- Hot water heater
Air conditioning system control
The MBAC can set the target temperature of each air conditioning system between 2 threshold values with a resolution of 0.1 °C. To do so, the air conditioning system must be connected over the LIN interface to the MBAC and be controllable.
The MBAC allows the user to adjust the target temperature of each air conditioning system with a resolution of 0.1 °C. To do so, the air conditioning system must be connected over the LIN interface to the MBAC and be controllable.
The MBAC can set the mode of each air conditioning system (OFF, Fan, Cool, Heat or Automatic). To do so, the air conditioning system must be connected over the LIN interface to the MBAC and be controllable.
The MBAC enables the user to set the mode of each air conditioning system (OFF, Fan, Cool, Heat or Automatic). To do so, the air conditioning system must be connected over the LIN interface to the MBAC and be controllable.
The MBAC can set the mode of the air conditioning system ventilation (Low, Mid, High or Night). To do so, the air conditioning system must be connected over the LIN interface to the MBAC and be controllable.
The MBAC enables the user to set the mode of the air conditioning system ventilation (Low, Mid, High or Night). To do so, the air conditioning system must be connected over the LIN interface to the MBAC and be controllable.
The MBAC enables the user to set the mode of the air conditioning system (Fan, AC, Automatic or specified value).
Heating system control
The heating system is controlled through the following interfaces:
- LIN interface
- I/O interface
LIN interface
The MBAC can set the target temperature of each heating system between 2 threshold values with a resolution of 0.1 %. To do so, the heating system must be connected to the LIN interface of the MBAC and be controllable.
The MBAC enables the user to adjust the target temperature of each heating system with a resolution of 0.1 %. To do so, the heating system must be connected to the LIN interface of the MBAC and be controllable.
The MBAC can set the state of natural gas operation of each heating system (Natural gas operation ON or natural gas operation OFF). To do so, the heating system must be connected to the LIN interface of the MBAC and be controllable.
The MBAC enables the user to set the state of natural gas operation of each heating system (Natural gas operation ON or natural gas operation OFF). To do so, the heating system must be connected to the LIN interface of the MBAC and be controllable.
The MBAC can set the output stage of each heating system (0 kW, 1 kW, 2 kW or 3 kW). To do so, the heating system must be connected to the LIN interface of the MBAC and be controllable.
The MBAC enables the user to set the output level of each heating system (0 kW, 1 kW, 2 kW or 3 kW). To do so, the heating system must be connected to the LIN interface of the MBAC and be controllable.
The MBAC can set the mode for each heating system with a hot-water heater (OFF, 40 °C or 60 °C). To do so, the heating system with hot water heater must be connected to the LIN interface of the MBAC and be controllable.
The MBAC enables the user to set the mode for each heating system with a hot water heater (OFF, 40 °C or 60 °C). To do so, the heating system with hot water heater must be connected to the LIN interface of the MBAC and be controllable.
I/O interface
The MBAC can control the status of the heating system (switch on or off). To do so, the heating system must be connected to the "DO_Heating_Switch" interface and be controllable.
The MBAC can control the fan stage of a heating system. To do so, a heating system with fan must be connected to the "DO_PWM_Heating_Fan1_Stage" interface and be controllable.
The MBAC can control the fan stage of a heating system. To do so, a heating system with fan must be connected to the "DO_PWM_Heating_Fan2_Stage" interface and be controllable.
The MBAC can control the fan stage of a heating system. To do so, a heating system with fan must be connected to the "DO_PWM_Heating_Fan3_Stage" interface and be controllable.
The MBAC can control the status of the valve's actuator in a heating system (active or inactive). To do so, the actuator must be connected to the "DO_Power_Heating_Valve1_Active" interface and be controllable.
The MBAC can control the direction of the valve's actuator in a heating system (open or close). To do so, the actuator must be connected to the "DO_Power_Heating_Valve1_Direction" interface and be controllable.
The MBAC can control the status of the valve's actuator in a heating system (active or inactive). To do so, the actuator must be connected to the "DO_Power_Heating_Valve2_Active" interface and be controllable.
The MBAC can control the direction of the valve's actuator in a heating system (open or close). To do so, the actuator must be connected to the "DO_Power_Heating_Valve2_Direction" interface and be controllable.
The MBAC can control the heating unit of a heating system (active or inactive). To do so, the heating unit must be connected to the "DO_Power_Active" interface and be controllable.
The MBAC can send the current actual temperature value in a range between 2 threshold values with a specific resolution in °C. To do so, the heating system must be connected to the "AO_Heating_Actual_Temperature_Value" interface and be controllable.
The MBAC can send the current specified temperature value in a range between 2 threshold values with a specific resolution in °C. To do so, the heating system must be connected to the "AO_Heating_Specified_Temperature_Value" interface and be controllable.
The MBAC enables the user to set the current specified temperature value with a specific resolution in °C. To do so, the heating system must be connected to the "AO_Heating_Specified_Temperature_Value" interface and be controllable.
The MBAC can control the status of the hot-water heater (switched on or switched off). To do so, the heating system must be connected to the "DO_Hot_Water_Switch" interface and be controllable.
Roof ventilator control
The MBAC can switch the status of the roof ventilator (switched on or off). To do so, the roof ventilator must be connected to the "DO_Roof_Ventilator_Switch" interface.
The MBAC can control the roof ventilator mode. To do so, the roof ventilator must be connected to the "DO_PWM_Roof_Ventilator_Switch" interface and be controllable.
Hot water heater control
The MBAC can control the status of the hot-water heater (switched on or switched off). To do so, the heating system must be connected to the "DO_Hot_Water_Switch" interface and be controllable.
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