This article covers installation of readers on Wascomat washers with Emerald controls (like E620 SU655E). The readers use pulse control
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See Reader DIP Switch settings

The reader simply replaces the coin-drop connection.
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On most Emerald control washers you should see a coin board shown below with the X221 (Coin 1) connection slot. Connect the 3-pin signal connector (with white and green wires) to this slot.
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Most common Emerald control washer

There are some models that do not have this board. Instead these models have screw terminals shown below. In this case, connect the green/white wires from the cable harness to pin 1 and pin 3 (polarity does not matter).
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Older Emerald control washers

Connect the DC jack from the cable harness the provided 12V power supply adapter. Connect the 110/220Vac side of the power adapter to a high voltage source (outlet or inside the machine)

Mount the reader to the coin-drop hole. It should be secured like this (inside view):
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Use the provided Activation card to activate the reader:
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Set vend prices on the Portal. The reader sends ONE pulse to the machine. Therefore, you will want to set the value of a single pulse meet the vend price set on the machine.
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See Vend Prices article.
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Below are problems commonly encountered during installation of readers on C-series Dexter machines. For more general reader troubleshooting, see Reader Support Process
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