Unitec Wash Select II POS Installation Manual - Manual (Page 24)

W A S H S E L E C T I I
Document Number: WS21001 18
Document Title: Wash Select II POS Installation Manual
2. Remove this connector from the socket and hold it so that the pin marked #1 is on
the left side. 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 Relays
Signal:
Wash Select II CPU
board (lower left
corner) Location:
Enterlink
Equivalent
POS4000,
E-system, Wash
Select V1
Equivalent
Wash Relay Common J-17, Pin 9 PC Conn. A pin 8
Wash Output #1 J-17, Pin 1 P1 Conn. B pin 1
Wash Output #2 J-17, Pin 2 P2 Conn. B pin 2
Wash Output #3 J-17, Pin 3 P3 Conn. B pin 3
Wash Output #4 J-17, Pin 4 P4 Conn. B pin 4
Spare Option Relays J-17, Pins 5-8 P5-8 Conn. B pin 5-8
4.4.2 Wash-In-Use
At the beginning of this manual, a reset circuit for the wash electronics was mentioned as a
requirement. This is what we often refer to as a “Wash-In-Use” signal. It is not uncommon for
values of this voltage to be as much as 115-120 VAC, so it is extremely important to verify
that there is no power applied to any of the wash components before proceeding. In previous
models offered by Unitec, there was a need to set a jumper on the CPU, in order to program
it for a 24VAC or a 120VAC circuit; however, this is not the case with the Wash Select II. This
unit is fully capable of dealing with all ranges of wash-in-use voltage.
1. Locate the Wash Select II CPU board and remove the green Phoenix connector
from the socket labeled J-18. This will be located on the lower left-hand corner of
the CPU. Use the screwdriver to open the terminals marked as pins 1& 2.
2. Identify the signals provided as a “Wash-In-Use Hot” and a “Wash-In-Use
Neutral” coming from the wash PLC. Install the two signal wires in accordance
with the following table:
Table 2. Wash-In-Use Signal
Signal:
Wash Select II CPU
board Location (lower
left corner):
Enterlink
Equivalent
POS4000,
E-system, Wash
Select V1 Equivalent
Wash-In-Use Hot J-18, Pin #1 WUH Conn. D pin 1
Wash-In-Use Neutral J-18, Pin # 2 WUN Conn. D pin 2