For models that a have a screw terminals, connect the reader's Green and White wires to terminals 3 and 4 from the top:

However, some models may not have this screw terminal, instead the coin-drop uses a white board-edge connector as shown below.
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In this case you'll need to splice the reader's Start wires (Green and White) into these existing wires (and cut-off any excess going to the coin-drop).
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The reader harness's White wire should splice to the middle wire, while the reader harness's Green wire should splice to bottom wire.

On these installs, you'll be keeping the coin drop connected to the machine, and the card reader's start wires will need to be wired into the coin drop's wires, in series.
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To do this, you will cut the Coin Drop's White wire, and connect 1 end to the reader's White wire, and the other end to the reader's Green wire, like in the figure below:

This will allow both the Card Reader, and the Coin Drop to be able to send Pulses to this machine to trigger payment.

The card reader kit will come with the following mounting bracket:

This bracket will fit where the coin-drop was remove; no drilling is required for this installation.

You will need to drill custom holes in order to mount the reader to the machine. Find any appropriate spot on the front of the machine that does not interfere with the existing control board and wiring.

You may follow this general Hybrid (Coin + Card) guide.

The machine needs to be configured to start from ONE Pulse from the card reader.
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To do this, you can either set the starting price of the machine to $0.25 so it starts from 1 Pulse.

Or you can set the price of the machine to whatever price the customer wants to charge, but if you do this, you ALSO need to change the Coin Value setting to be equal to the full Vend Price the machine is charging. This ensures that the ONE pulse the reader sends, satisfies the full vend price and triggers the machine to start.

Depending on what the customer is going to be charging for these machines, the Laundroworks support team may need to update the card reader's firmware/Control Type to allow the reader to send multiple pulses each time, if that's necessary.
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In general, we recommend setting the dryers to start for $0.25, and add the same amount of time each time (regardless of if the machine is running or at idle).
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If the Dryers is setup to start for $0.25, and add the same amount of time each time, then pricing a Hybrid machine is the exact same as pricing Card Only machines.
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If setting up Hybrid readers, where the customer charges multiple quarters to start/add time to the machines, get in touch with our support team so we can help configure the card readers for multiple pulses. Regardless of what pricing your using, the reader can only charge 1 vend price amount, so the machine needs to be setup to add the same amount of time, regardless of if the machine is running on at idle.

Every time you tap/present the card, the reader will deduct the Time Unit Cost from the laundry cards balance, but it will only send ONE pulse to the machine, just like inserting 1 quarter into a coin-drop.
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The price configured, and displayed, on the machine is largely irrelevant. Some store owners will match the price on the machine to the price on the reader. The problem with this approach is that if you want to change the vend price in the future, they'll need to change the price on both the card reader and the machine itself.
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Other owners set the machine vend price to 1 penny. This way, machine users would not pay much attention to the machine's displayed price, and instead focus on the reader's displayed price. Setting things this way allows the owner to adjust prices of the card reader, without needing to worry about synchronizing the display on the machine.
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The Time-Unit parameter is ONLY used by the reader, to simulate the dry time being added to the machine; this setting DOES NOT control the actual dry time that the Dryer is adding; the amount of dry time is controlled entirely by the machine directly.
So the reader's Time Unit (mins) setting should be set to the actual amount of time that the machine adds, so that the reader is in sync with the actual dry time the machine adds.