Unitec EZ Trak - Manual (Page 13)

E Z T R A K
Document Number: EZT1001 9
Document Title: EZ Trak Installation and Operations Manual
panel. You will be making connection to the interface board connector J7,
pins 3 and 4.
2. Use the screwdriver to open and/or secure the manufacturer wash wires
to each of the appropriate Unitec relay locations in accordance with the
following table:
Table 1. Wash Program Relays
Signal: EZ Trak Interface Board
Wash Program Relay Output J7, Pin 3
Wash Program Relay Input J7, Pin 4
2.4.3 Wash-In-Use
The EZ Trak will accept 24VAC, 24VDC or 115-120 VAC, Identify the signals
provided as a “Wash-In-Use Hot” and a “Wash-In-Use Common” coming from the
wash PLC. Install the two signal wires in accordance with the following table:
Table 2. Wash-In-Use Signal
Signal: EZ Trak Interface Board
Wash-In-Use Hot J7, Pin 1
Wash-In-Use Common J7, Pin 2
2.4.4 Wash Stacking
The EZ Trak unit stacks one wash if the wash in-use signal is on. If the wash-in-use
signal is on and a card/code is entered, that wash will be stacked and the customer
message is: “Account Valid, Wash Queued, Wait for Wash”. When the wash-in-use
signal turns off, the customer will be prompted to enter the wash.
A card/code entry will not activate a wash immediately following a wash activation.
The message displayed is: “Wait Until Previous Car is in Wash”. This is cleared by
the wash-in-use signal or a ~5 second timeout (the timeout is required in case the
carwash does not provide a wash-in-use signal).
If the in-use signal is on and a wash is queued, additional card/codes entrees will not
stack another wash. Customer message is: “Wash Already Queued – Waiting for
Wash”.