1. Units above NLPA/W-20.2 are equipped with two compressors with multi-stage energy regulation, suitable for small and medium-sized production sites and equipment.
2. The NLPA/W-3.1 to NLPA/W-12.1 standard units are equipped with movable casters at the bottom, which are slim in appearance and can be freely changed in installation position, suitable for supporting small production equipment.
3. Air cooled units do not require cooling water pumps or towers, and can be installed outdoors to reduce noise and heat consumption, with centralized supply of cold water.
4. Water cooled or air-cooled low-temperature chiller units can have an outlet temperature below 5 ℃, and can also use ethylene glycol refrigerant according to user requirements, suitable for special low-temperature refrigeration systems.