During warmer months, heat from warm air is transferred to the heat exchanger and into the fluid. As it moves through the pipes, the heat is dispersed to the rocks, soil, and groundwater. The pump is reversed during the colder months. Heat energy stored in the relatively warm ground raises the temperature of the fluid. The fluid then transfers this energy to the heat pump, which warms the air inside the building.
While individual states generally govern how long medical records are to be retained â HIPAA. rules require a Medicare Fee-For-Service provider to retain required documentation for six. years from the date of its creation or the date when it last was in effect, whichever is later.
How long to keep accident records. by keith666 Â» Thu Sep 02, 2010 2:51 pm. Quick question before i trawl the legislation, how long should accident/incident records (and personnel files) be kept, we currently scan all over 3 years.uick question before i trawl the legislation, how long should accident/incident records (and personnel files) be kept, we currently scan all over 3 years.