Depression and addiction, for example, have several things in common, including: 1  Loss of interest in once-enjoyable activities. 2  Fatigue. 3  Feelings of hopelessness. 4  Reckless behavior. 5  Irritability.
Deflection Temperature Testing of Plastics. The deflection temperature is a measure of a polymer's ability to bear a given load at elevated temperatures. The deflection temperature is also known as the 'deflection temperature under load' (DTUL), 'heat deflection temperature', or 'heat distortion temperature' (HDT).
When a heat pump comes out of defrost in the heating mode, it can put off steam. There is no need for alarm. Defrosting is your systemâs way of automatically removing any ice that has formed. Ice build up can dramatically reduce airflow and cause damage to the outdoor unit.