The heat pump dryer allows drying air to remain at a constant
temperature and relative humidity.When the heat pump dryer is in
heating mode, the refrigerant in the heat pump system follows a
sequential path: 1/2/3/4/5/6/7/8/9/1. If the process
temperature is higher than set point, heat pump dryer will run in a
cooling mode and the refrigerant will follow a different path:
1/10/11/4/5/6/7/8/9/1