Ice maker
AssigneeTrue Manufacturing Co., Inc.
InventorKevin Knatt
Life of this patent
Estimating the term…
Abstract
An ice maker control system includes a low side pressure transducer on a suction line and a high side pressure transducer on a discharge line. The ice maker's refrigeration system is hermetically sealed and devoid of pressure taps for servicing gauges. The ice maker can display an indication of real-time suction or discharge pressure. The ice maker can store records of suction and discharge pressure over time and display time series data for suction and discharge pressure on the display. The ice maker can cycle the condenser fan based on the discharge pressure. An additional high pressure switch can shut off the compressor independently of the controller or transducers. During a pulldown routine, the ice maker refrains from delivering water to the ice formation device until the suction pressure is below a threshold.
Claims11
1-26. (canceled)
A method of servicing an ice maker, the method comprising:
- displaying an indication one of suction pressure and a discharge pressure on a display connected to the ice maker, wherein said indication of one of the suction pressure and the discharge pressure is based on a signal output from a pressure transducer connected to a hermetically sealed refrigeration system of the ice maker;
- and
- conducting, with a controller of the ice maker, an automated maintenance routine in response to a user input to the display and received by the controller, the user input instructing the controller to perform the automated maintenance routine to address a diagnosis made based on the displayed one of the suction pressure and the discharge pressure.
34-36. (canceled)
A method of using an ice maker, the method comprising:
- operating the ice maker to make ice;
- while operating the ice maker to make ice, outputting at least one of a signal from a low side pressure transducer representative of suction line pressure and a signal from a high side pressure transducer representative of discharge line pressure;
- storing, based on at least one of the signal from the low side pressure transducer and the signal from the high side pressure transducer, a respective record of at least one of the suction line pressure and the discharge line pressure over a period of time in memory;
- and
- displaying based on the respective record stored in memory an indication of at least one of the suction line pressure and the discharge line pressure over the period of time.
Dependencies are inferred from the claim text.