This article covers installation of readers on Alliance Netmaster dryers and Netmaster small-chassis washers/dryers
Parts
Installation
Before proceeding, you should assign numbers to each of the machines in the laundry room/building. It is highly recommended that you place number labels on each washer and dryer machine.
Turn machine power OFF!
Open the service door, pull-out the control board and coin drop assembly, detach the coin drop connector and and remove the coin drop
Connect the 4-wire connector to header H7 on the control board:

Connect the 2-wire connector the 24Vac power supply connector coming off the 24Vac transformer on the machine
Mount the reader
Set the Start Pulse mode on the dryer or washer control.
On a tumble dryer, find setting 65 and set it to either 128 (for a single pulse start) or 192 (for multi-pulse start which allows small increments of time every time you tap the card):
In small-chassis washers/dryers, find setting 60 and set it to either 128 (for a single pulse start) or 192 (for multi-pulse start on dryers which allows small increments of time every time you tap the card)