NF series are side-airflow and air-cooling units,apply for medium and low temperature cooling equipment.The whole installation process is just like installing a wall type air-conditioner.As hermetic design and anti-corrosion outer shell,it can be avoidance of sunshine and raining effect.Just choosing any ventilating place without exposing to the direct sunshine to install the unit.The unit is completely welding to ensure no leakage and avoid adding refrigerant frequently.The use of welding ensure refrigerant leakage below 3g/year.