Alliance Laundry Systems (SpeedQueen and Huebsch) has been making commercial laundry machines for decades. There are many eras of laundry machines that all work slightly differently and it is helpful to identify differences between them to configure Cents devices correctly.
The Cents Penny is compatible with the following Alliance machine eras:
ACA
Titanium
Midas
Centurion
MDC
EDC
If you are having trouble identifying the machine era, see the table below that should help narrow things down. This does not provide exhaustive information and [email protected] can be consulted to determine the correct era for any given model number if you need final clarification.
Machine Era | Quick Identifier | Relevant Photo |
Titanium | The display on the machine control shows numbers in white rather than older machines which show them in green. Additionally, the buttons are capacitive touch instead of a traditional button. As of 2026, Titanium is only relevant for small chassis machines, which are top-load washers and dryers. See also that the 7-pin header will be blue and on a separate board than the control itself. | 
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ACA | Model numbers are 18 digits long. On SpeedQueen Washer-Extractors, the START button is always in the bottom row. | 
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Midas | These machines have a touchscreen. Additionally, their model number is 18 digits long. | 
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Centurion | Model numbers are 15 digits long. Machines may look similar to ACA, but note two things: on SpeedQueen Washer-Extractors the START button is always in the middle row, and usually the button designs are "busier" than new machines. | 
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MDC | Model numbers are 15 digits long. Note how the button shape for MDC and Centurion differs from ACA. Differentiating between Centurion and MDC requires reaching out to [email protected] | 
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NetMaster | These machines are older than MDC and Centurion machines but look similar. Consult [email protected] | - |
EDC | These machines are older than MDC and Centurion machines but look similar. Consult [email protected] | - |