Model Number: AP50V. Mitsubishi Electric MSZ-AP series wall mounted split system reverse cycle air conditioners are engineered for high performance and feature a new square-lined design. Models range from 9000 to 24000 Btu so there is a capacity to suit most cooling and heating requirements around the home. KEY PRODUCT FEATURES: 18000 Btu Reverse cycle air conditioning Wall-mounted air conditioner Econo Cool Auto Vane Natural White Low-Temperature Cooling Night Mode Self Diagnosis Powerful Operation Weekly Timer Auto Restart Dual Barrier Coating Auto Fan Speed 24 Hour Timer Blue Fin Condenser Super Quiet (18dB(A) for model 25 in heating mode only) Auto Change Over Horizontal Swing Vertical Swing Anti-Allergy Enzyme Filter (Optional) Flare Connection Guaranteed Operating Range: Cooling at -10°C ~ 46°C / Heating at -15°C ~ 24°C Maximum Cooling: 18,425 btu/hr Maximum Heating: 20,472 btu/hr