Compass FREEZE Handbuch Seite 3

3. Functions and operation setting.
3.1 Power supply: 12/24V DC or 110~240V AC （enclose adapter）.
3.2 Power cable connection:
3.3 Operation setting:
ON/OFF: Connect to the power; press the ON/OFF button to start the unit. Press the ON/OFF
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button again, the unit is turn off.
Press the button Δ UP or ▽DOWN button to adjust target temperature. Press the button Δ to
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increase or the button ▽to decrease the temperature.
"SET" BUTTON: Press the button "SET" to enter the economy running mode:
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1. ECO (Energy-saving mode)
2. HH (Quick cooling mode)
Indicator light:
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1. Power indicator light in red: the compressor is stopped.
2. Power indicator light in Green: the compressor is working.
3. Eco/Max indicator light in red: quick cooling mode is working.
4. Eco/Max indicator light in green: Energy-saving cooling mode is working.
Battery Protection: Selecting the H1, H2, H3 positions, you can choose different levels for batte-
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ry protection. When the unit is on working, press the "SET" button for 3S, then the LED will dis-
play as below:
H1: Low power protection.
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H2: Middle power
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H3: High power protection (factory default)
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When the unit is connect to the car, we suggest you setting the battery protection to H3 (H) level. H2
(M) and H1 (L) are suggested when the unit is connect to the backup battery. Different car may have
different power output voltage. If the voltage protection display (F1 display in the LED), then setting
the battery portection from H3 to H2 or H1.
Most car will stop power supply if engine is stopped. But some car will continue power supply even
engine is stopped. If your refrigerator is still working when the engine of the car is stopped, then you
should adjust the battery protection to H3 (H), otherwise, the power of your car battery may run out
and your car battery may not have enough power to start car.
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