AIRLUX DC Inverter Heat Pumps / Air Conditioners provide cooling and heating with considerable energy savings. Equipped with variable speed DC Inverter compressors AIRLUX units offer compact, quiet, stylish wall-mounted design which perfectly blends into any environment. These units have optimized air duct design for a range of noise reduction measures resulting in ultra-low noise performance. Energy saving: After the indoor temperature approaches the set temperature, Inverter Control adjusts to low capacity operation to maintain this temperature. This makes inverter models more energy-saving than non-inverter models, which must repeatedly start or stop their compressors to maintain the room temperature. Power: Inverter air conditioners operate at maximum capacity as soon as they start up. As a result, the set temperature can be reached more quickly. Comfort: Inverter air conditioners finely adjust capacity according to changes in the air-conditioning load and the difference between the indoor temperature and set temperature is small. These give higher comfort levels than with non-inverter air conditioners. Low outside operating temperature -15C. Environmentally friendly refrigerant R410A Insulated copper pipes for installation – 5 meters Auto Restart Defrosting System & Multi-fold evaporator Washable corrugated filter to trap very fine particles in the air Remote control, ON/OFF timer, sleep mode and memories Quick cooling & heating High energy efficiency & quite operation Outdoor ASZ24O Power supply Ph-V-Hz 208-230V~60Hz ,1Ph Cooling Capacity Btu/h 24000 EER Btu/w 12.5 SEER Btu/w 20.5 Heating Capacity Btu/h 25000 HSPF4 Btu/w 10 MAX.FUSE A 25 Indoor unit Dimension(W*D*H) mm 1080x226x335 Dimension(W*D*H) inch 42.52×8.90×13.19 Net/Gross weight lbs. 29.1/37.0 Outdoor noise level min/max dB(A) 30/61 Outdoor unit Dimension(W*D*H) mm 946x410x810 Dimension(W*D*H) inch 37.24/16.14/31.89 Net/Gross weight lbs. 136.69/147.27 Refrigerant type g R410A/2350g Refrigerant precharge ft 25 Additional charge for each ft oz 0.322 Design pressure PSIG 550/340 PSIG Refrigerant piping Liquid side/ Gas side mm(inch) Φ9.52/Φ15.9(3/8″/5/8″) Max. refrigerant pipe length ft 164 Max. difference in level ft 82 Operation temperature Indoor(cooling/ heating) ℃ 17 ~ 32/0 ~ 30 Outdoor(cooling/heating) ℃ -25 ~ 50/-25 ~ 30