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The U.S. Department of Energy has enacted a grace period for products that were manufactured before 2015, but do not meet the 2015 Regional Standards. While this model is no longer being produced, limited inventory remains available in some areas. Learn more.
SEER (Seasonal Energy Efficiency Ratio) rates the energy efficiency of your cooling equipment. The higher the SEER rating, the more efficiently your unit operates, saving you money on utility bills.
HSPF (Heating Seasonal Performance Factor) rates the energy efficiency of your heat pump. The higher the HSPF rating, the more efficiently your unit operates, saving you money on utility bills.
Allows heat pumps to enter defrost mode without excessive noise. Since refrigerant pressure is allowed to equalize before the switch, the heat pump can dissipate performance-robbing frost and ice quietly.
Integrated Compressor Protection: The combination of both high and low pressure switches give additional reliability to each Armstrong Air cooling unit. The high pressure switch prevents operation in the event that refrigerant pressures exceed safe levels, protecting the compressor. In the event that your unit does not have enough refrigerant, the low pressure switch prevents the unit from drawing in moisture and other contaminants while operating.
Armstrong Air’s proprietary heat transfer system. A specially designed fan shroud pulls air evenly throughout the air conditioner’s coil surface. The coil features rifled tubing to enhance refrigerant flow, while lanced coil fins increase surface contact between metal and air. All combine for maximum heat transfer and efficiency.
Top Features of the 4SHP13LB
* Due to Allied Air's ongoing commitment to quality, all specifications, ratings and dimensions are subject to change without notice. Consult AHRI directory for the latest performance ratings.