Pay attention：<br> 1. PLEASE DON'T RUN the compressor without adding R134a gas (Freon) and connecting with other parts! We couldn't take responsibility for you if you damage the compressor.<br> 2. To prevent unwanted moisture entering the system and causing insulation down,the compressor should be installed in a closed system immediately once you've opened the suction/exhaust port.<br> General requirements:<br> Refrigerant (Gas): R134a<br> Speed range: (12V)1000～1900 rpm / (24V)1000 ~ 3300 rpmWorking<br> pressure:Suction pressure: 0.2～0.45Mpa<br> Discharge pressure: ≤2.0Mpa<br> pressure ratio: ≤10<br> Ambient temperature:≤85℃<br> Discharge temperature: ≤110℃<br> Lubricating oil require:<br> 12V: 8%-10% of whole system refrigerant (Gas)<br> 24V: 13%-15% of whole system refrigerant (Gas)<br> Generator (battery) request:<br> 12V compressor require generator ampere over 100A;<br> 24V compressor require generator ampere over 70A.<br> About vehicle battery: If you want to use the electric compressor after parking, then your vehicle battery capacity should be large enough. For example, 12V compressor current about 45A. So one new and full charged 45A battery can run the compressor for one hour.<br> Compressor data:<br> Compressor style: Semi-closed Horizontal Scroll Compressor<br> Material: Aluminum alloy<br> Rated voltage: 12VDC / 24VDC<br> Normal voltage range: (12V)10.8VDC~15VDC /(24V)19.5VDC~32VDC<br> Max incoming current: (12V)60A / (24V)55A<br> Max applied power: (12V)1000W / (24V)1600W<br> Displacement: 21cm³/r<br> Cooling capacity:(12V)1622.5W, 5536.08 Btu/h / (24V)2760W, 9417.31 Btu/h<br> Normal speed range: (12V)1000~1900rpm / (24V)1000~3300rpm<br> Rated input power: (12V)550w / (24V)850W<br> Rated speed: (12V)1800rpm / (24V)3200rpm<br> Evaporator temperature range: -10~12.5℃<br> Condenser temperature range: 26.7~68℃<br> Refrigeration oil:POE oil RL68H/130ml<br> COP W/W: (12V)2.95 / (24V)3.27<br> Noise:<br> (12V)≤70dB(A) / ≤74dB(A)<br> (24V)≤76dB(A) / ≤78dB(A)<br