| 摘要 |
The invention relates to a condensation dryer 1 with a drying chamber 3 for the objects to be dried, a process air circuit 2, a first fan 19 in the process air circuit 2, a heat pump 13, 14, 15, 17 in which a coolant circulates, an evaporator 13, a compressor 14, a condenser 15 and a throttle 17 as well as a temperature sensor 22 for measuring a temperature of the coolant, and a controller 10. The controller 10 comprises a first means 26 for comparing a temperature T? of the coolant to an upper temperature limit T? lim1 stored in the controller 10; second means 27 for shutting off the compressor 14 when T? is greater than or equal to T? lim1, and for turning on the compressor 14 after a respective shut off; a counting device 28 for determining a number n of cases in which the compressor 14 has been shut off, said counting device 28 being incremented by 1 every time a shutoff occurs; and third means 29 for comparing the number n with a pre-determined limiting number nlim stored in the controller 10 and for evaluating the difference ?n = (n - nlim) in relation to the existence of an impermissible operating state. The invention further relates to a method for operating the condensation dryer. |
