Dexter: Pulse dryers

Dexter: Pulse dryers

This note covers reader installations on older Dexter coin-op dryers such as DDAD, DL2X, DDAB, DLC. The reader uses pulse control to send a single pulse to the dryer control using the coin-drop interface (connector P2). Only one reader per stack is required.


Reader on DL2X dryer

Sample on DDAD dryer

Parts

  • Reader with back-plate
  • Cable harness
  • 12V Power supply

Installation

  1. Before proceeding, you should assign numbers to each of the machines. It is highly recommended that you place number labels on each dryer machine.

  2. Set the machine type and number using the DIP switch on the reader circuit board: 



    See here for more details: 
    Reader DIP Switch settings

  3. Turn machine power OFF!

  4. Open the service compartment or lid

  5. Remove the coin drop if present

  6. Connect the reader-side of the cable harness to the reader

  7. Connect the 2-wire signal connector to header P2 on the machine's control. The reader's cable harness should have wires going to the two right-most pins, controlling the Coin2 input on the machine (so if you're making any pulse/timing adjustments on the machine, ensure you're configuring Coin2)



  8. Connect the 2-wire power connector to the external power supply provided

  9. Connect the 120Vac side of the power supply either to an outlet, or to an appropriate high-voltage connection inside the machine (cut-off AC prong in this case)

  10. Proceed to secure the reader to the machine using the provided nuts. For DL2X models, the reader typically goes over Coin-Drop area. For all other models, the reader typically goes into the Coin-Box vault (you may need to lower the reader plate to avoid overlapping the divider on the front of the dryer - do this by tucking the lower lip of the reader bracket between the reader plate and the machine)

  11. Activate the reader using the Activation card for this store location:



Pricing

Pricing is set on the reader using the LaundroPortal.

Troubleshooting

Below are problems commonly encountered during installation of readers on these dryers. For more general reader troubleshooting, see  Troubleshooting Readers

Issue
Explanation and resolution
Reader taking money BUT time not actually added
This usually means that the vend price or value of the pulse are not configured on the dryer in a way that will allow it to add time, or start the machine, with only a single pulse.

NOTE 1: The cable harness connects to Coin2 (or 2nd Coin switch) input on header P2, not the primary Coin input where the coin-drop normally connects. So ensure that on the dryer, you're configuring the pulse parameters for Coin2


NOTE 2: if this is a conversion from an EasyCard system, the default setting might treat one pulse as 25cents but the vend price to start the machine is set to $1. Therefore, one pulse from the reader will not start the machine.  Configure accordingly.



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