Setting of Target Evaporator Temperature Upper Limit Value
DESCRIPTION
Setting of upper limit value of target evaporator temperature can be changed. Control characteristic of compressor control (freezing protection control and refrigerant discharge amount control) changes according to change of the setting, and then operation ratio of compressor and refrigerant discharge amount are changed. According to change of the setting, control characteristic focusing on the fuel consumption can be adjusted to control characteristic focusing on the cooling capacity.
HOW TO SET
CONSULT Select "TARGET EVAPORATOR TEMP UPPER LIMIT SETTING" in "Work support" mode of "HVAC".
| Work support items | Display | Setting |
|---|---|---|
| TARGET EVAPORATOR TEMP UPPER LIMIT SETTING | Initial setting | Setting 1 |
| Low | Setting 4 | |
| Middle (initial status) | Setting 3 | |
| High | Setting 2 |
| Setting | Target evaporator temperature upper limit value | Evaporator freezing protection control | Refrigerant discharge amount control |
|---|---|---|---|
| Setting 1 | 50°F (10°C) | Minimum operation ratio of compressor | Minimum refrigerant discharge amount |
| Setting 2 | 45°F (7°C) | Operation ratio of compressor increases from setting 1. | Refrigerant discharge amount increases from setting 1. |
| Setting 3 | 41°F (5°C) | Operation ratio of compressor increases from setting 2. | Refrigerant discharge amount increases from setting 2. |
| Setting 4 | 37°F (3°C) | Operation ratio of compressor increases from setting 3. | Refrigerant discharge amount increases from setting 3. |
NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V or less, the setting of the target evaporator temperature upper limit setting may be cancelled.