Abstract: A method to control operation of a laundry dryer. The method includes starting a drying cycle, and receiving a user input command through one of a first interface and a second interface. If the command is provided through the first interface, a first working routine is started. If the same command is provided through the second interface, a second working routine is started. The second routing is different in at least one operational parameter than the first working routine. A laundry dryer configured to perform the method is also provided.

Abstract: A method to control operation of a laundry dryer. The method includes starting a drying cycle, and receiving a user input command through one of a first interface and a second interface. If the command is provided through the first interface, a first working routine is started. If the same command is provided through the second interface, a second working routine is started. The second routing is different in at least one operational parameter than the first working routine. A laundry dryer configured to perform the method is also provided.

Abstract: A heat pump laundry dryer or a heat pump washing machine having a drying function, includes a control unit controlling an operation of the laundry treatment apparatus. A laundry treatment chamber treats laundry using process air circulated in a process air circuit. A heat pump system has a refrigerant loop in which refrigerant fluid is circulated through a first and a second heat exchanger. A compressor circulates the refrigerant fluid through the refrigerant loop, and a cooling fan unit cools the compressor. During the operation, a conveyance capacity of the cooling fan unit is varied. A detector unit detects an operation parameter indicating a state of at least one electronic board. A method of operation includes operating the cooling fan unit based upon the electronic board operation parameter, and controlling the compressor operation output based upon the electronic board operation parameter, wherein the compressor is a variable speed compressor.

Abstract: A method is provided for operating a heat pump laundry dryer or a heat pump washing machine having drying function. The laundry dryer or washing machine includes: a control unit controlling the operation of the laundry dryer or washing machine, a laundry treatment chamber for treating laundry using process air, a process air circuit for circulating the process air, a heat pump system having a refrigerant loop, in which the refrigerant fluid is circulated through a first and a second heat exchanger, a compressor for circulating the refrigerant fluid through the refrigerant loop, and a cooling fan unit (24) for cooling the compressor.

Abstract: A laundry dryer (1) has a laundry drum (3) which is designed to rotate about an longitudinal axis (6). An air recirculating conduit (10) is connected to the laundry drum (3). A heater device (10) is located along air recirculating conduit (10) to heat the airflow. A rotatable fan (11) is located along air recirculating conduit (10) to produce an airflow flowing through drum (3). The fan (11) is designed to be rotated in a main and secondary direction of rotation for providing different air flow rates. An electric motor (14) is mechanically connected with the fan (11) and the drum (3) for rotating the fan (11) and drum (3), simultaneously.

Abstract: A method of controlling a rotatable-drum laundry drier to dry delicate laundry in a drum of the rotatable-drum laundry drier. The method includes the steps of feeding drying air into the drum; rotating the drum at a variable rotation speed about an axis of rotation; rotating the drum at a first rotation speed higher than, or equal to a rotation speed, at which centrifugal acceleration of the inner surface of the drum equals gravitational acceleration; making interruptions in rotation of the drum at the first rotation speed; and performing, at each interruption, one or more rotation cycles at a second rotation speed, so that, at each cycle, at least part of the laundry slides/tumbles slowly inside the drum while remaining in contact with the inner surface of the drum and/or another part of the laundry contacting the drum.

Abstract: A method of operating a laundry treatment apparatus, in particular a washing machine, a laundry dryer, a heat pump laundry dryer or a washing machine having a drying function, is provided. The apparatus includes a control unit controlling the operation of the treatment apparatus, a laundry treatment chamber for treating laundry, a detector unit for detecting at least one operation parameter (T_inv) of the treatment apparatus, and a first variable speed motor unit adapted at least to drive the treatment chamber, and/or a compressor having a second variable speed motor unit for circulating a refrigerant fluid through a refrigerant loop of the laundry treatment apparatus.

Abstract: Method for operating a laundry treatment machine comprising an outer casing (2) provided with a door (8), a drum (3) mounted inside the outer casing, a drum lighting device (9) arranged inside the outer casing and operable to light the drum, and a control unit (11) adapted to control the lighting device; the method comprises: —switching-on drum lighting device if the control unit detects a preset action performed by a user on the laundry treatment machine and/or a preset state of the laundry treatment machine and/or of the drum lighting device; —switching-off drum lighting device if the control unit detects a preset action performed by a user on the laundry treatment machine and/or a preset state of the laundry treatment machine and/or of the drum lighting device.

Abstract: A method for controlling a rotatable-drum laundry drier to dry laundry in a drum is provided. The control method includes the steps of memorizing, in a memory device of the laundry drier, a comparison threshold variable in time according to a predetermined profile, and, at predetermined drying times in the laundry drying cycle, measuring an electric quantity indicating the moisture in the laundry at the drying time; comparing, at each drying time, the measured electric quantity with the memorized comparison threshold corresponding to the drying time; and determining the end of drying cycle time on the basis of this comparison.

Abstract: The invention relates to a method of operating a heat pump laundry dryer or a heat pump washing machine having drying function and to such a laundry dryer or washing machine, wherein the laundry dryer or washing machine comprises: a control unit (30) controlling the operation of the laundry dryer or washing machine, a laundry treatment chamber (18) for treating laundry using process air, a process air circuit for circulating the process air, a heat pump system (4) having a refrigerant loop, in which the refrigerant fluid is circulated through a first and a second heat exchanger (10, 12), a compressor (14) for circulating the refrigerant fluid through the refrigerant loop, and a cooling fan unit (24) for cooling the compressor (14), and wherein the method comprises: modifying or changing an operation parameter set of the cooling fan unit (24) in dependency of at least one of the following input variables: a user selectable input variable, a working parameter of the laundry drum, a working parameter of a proces

Abstract: The invention relates to a heat pump laundry treatment apparatus, in particular a heat pump laundry dryer or a heat pump washing machine having drying function, and to a method of operating such a heat pump laundry treatment apparatus. The laundry treatment apparatus comprises a control unit (51) controlling the operation of the laundry treatment apparatus, a laundry treatment chamber for treating laundry using process air, a process air circuit for circulating the process air, a heat pump system having a refrigerant loop (6) in which the refrigerant fluid is circulated through a first and a second heat exchanger, a compressor (14) for circulating the refrigerant fluid through the refrigerant loop (6), and a cooling fan unit (53) for cooling the compressor (14). During the operation the conveyance capacity of the cooling fan unit (53) is varied, and a detector unit (60) for detecting an operation parameter indicates a state of an electronic board (52).

Abstract: A method of operating a laundry treatment apparatus, in particular a washing machine, a laundry dryer, a heat pump laundry dryer or a washing machine having a drying function, is provided. The apparatus includes a control unit controlling the operation of the treatment apparatus, a laundry treatment chamber for treating laundry, a detector unit for detecting at least one operation parameter (T_inv) of the treatment apparatus, and a first variable speed motor unit adapted at least to drive the treatment chamber, and/or a compressor having a second variable speed motor unit for circulating a refrigerant fluid through a refrigerant loop of the laundry treatment apparatus.

Abstract: A method is provided for controlling a drying operation of a rotatable-drum laundry dryer (1) having a rotatable drum (3) for loading laundry (5) and at least an electrode sensor (22) for sensing dryness of the laundry (5). The method includes the step of detecting the presence/absence of moist laundry (5) inside the rotatable drum (3) by the electrode sensor (22). If a presence of moist laundry inside the rotatable drum (3) is detected, a drying cycle is started. The dryness of the laundry (5) is sensed during the drying cycle and a cycle time (TD) at which the sensed dryness reaches a preset dryness threshold is measured. If the cycle time (TD) is lower than a preset dryness threshold time (Sm), the drying cycle is continued for a first additional time (D1), and the drying cycle is stopped at the end of the first additional time (D1).

Abstract: A laundry dryer (1) has a laundry drum (3) which is designed to rotate about an longitudinal axis (6). An air recirculating conduit (10) is connected to the laundry drum (3). A heater device (10) is located along air recirculating conduit (10) to heat the airflow. A rotatable fan (11) is located along air recirculating conduit (10) to produce an airflow flowing through drum (3). The fan (11) is designed to be rotated in a main and secondary direction of rotation for providing different air flow rates. An electric motor (14) is mechanically connected with the fan (11) and the drum (3) for rotating the fan (11) and drum (3), simultaneously.

Abstract: A method for controlling a rotatable-drum laundry drier to dry laundry in a drum is provided. The control method includes the steps of memorizing, in a memory device of the laundry drier, a comparison threshold variable in time according to a predetermined profile, and, at predetermined drying times in the laundry drying cycle, measuring an electric quantity indicating the moisture in the laundry at the drying time; comparing, at each drying time, the measured electric quantity with the memorized comparison threshold corresponding to the drying time; and determining the end of drying cycle time on the basis of this comparison.

Abstract: A method of controlling a rotatable-drum laundry drier to dry delicate laundry in a drum of the rotatable-drum laundry drier. The method includes the steps of feeding drying air into the drum; rotating the drum at a variable rotation speed about an axis of rotation; rotating the drum at a first rotation speed higher than, or equal to a rotation speed, at which centrifugal acceleration of the inner surface of the drum equals gravitational acceleration; making interruptions in rotation of the drum at the first rotation speed; and performing, at each interruption, one or more rotation cycles at a second rotation speed, so that, at each cycle, at least part of the laundry slides/tumbles slowly inside the drum while remaining in contact with the inner surface of the drum and/or another part of the laundry contacting the drum.

Abstract: A method is provided for controlling a rotatable-drum laundry drier (1) for drying laundry. The rotatable-drum laundry drier (1) has a rotatable drum (3) for laundry (5) and moisture sensors (22) generating an electrical signal (SM) indicative: of the loaded laundry moisture/quantity.

Abstract: Method for operating a laundry treatment machine comprising an outer casing (2) provided with a door (8), a drum (3) mounted inside the outer casing, a drum lighting device (9) arranged inside the outer casing and operable to light the drum, and a control unit (11) adapted to control the lighting device; the method comprises: switching-on drum lighting device if the control unit detects a preset action performed by a user on the laundry treatment machine and/or a preset state of the laundry treatment machine and/or of the drum lighting device; switching-off drum lighting device if the control unit detects a preset action performed by a user on the laundry treatment machine and/or a preset state of the laundry treatment machine and/or of the drum lighting device.

Abstract: A home laundry drier (1) having a revolving drum (5) for housing the laundry to be dried, a hot-air generator (7) for circulating a stream of hot air inside the drum (5), and a steam generator (17) for feeding steam into the drum (5); the steam generator (17) having an electric boiler (18) designed to receive a given quantity of water and immediately convert it into a stream of low-pressure steam to be fed into the drum (5), a demineralized-water reservoir (20) located over and communicating with the electric boiler (18), and a lint filter (23) located upstream from the water reservoir (20); the water reservoir (20) receiving distilled water from the water canister (12) of the heat exchanger (10) of the hot-air generator (7) via a water drain circuit (13); and the laundry drier (1) also having a liquid level sensor (26) for determining when the water in the water reservoir (20) is below a given minimum level, and a central control unit (24) for determining whether the water reservoir (20) is in a given low-wa

Abstract: A home laundry drier (1) having a revolving drum (5) for housing the laundry to be dried, a hot-air generator (7) for circulating a stream of hot air inside the drum (5), and a steam generator (17) for feeding steam into the drum (5); the steam generator (17) having an electric boiler (18) designed to receive a given quantity of water and immediately convert it into a stream of low-pressure steam to be fed into the drum (5), a demineralized-water reservoir (20) located over and communicating with the electric boiler (18), and a lint filter (23) located upstream from the water reservoir (20); the water reservoir (20) receiving distilled water from the water canister (12) of the heat exchanger (10) of the hot-air generator (7) via a water drain circuit (13); and the laundry drier (1) also having a liquid level sensor (26) for determining when the water in the water reservoir (20) is below a given minimum level, and a central control unit (24) for determining whether the water reservoir (20) is in a given low-wa