Corporate
800.882.8854
57
Electrical Diagrams - Relay Descriptions
This diagram shows relay descriptions, a brief overview of the connected components, the wiring
color scheme, and the relay connection points. This should be helpful for troubleshooting.
1
2
6
3
4
5
6
7
8
A1
A2
14
11
12
A1
A2
14
11
12
A1
A2
14
11
12
A1
A2
14
11
12
A1
A2
14
11
12
A1
A2
14
11
12
A1
A2
14
11
12
A1
A2
14
11
12
A1
A2
14
11
12
G
H
A
A
B
F
E
C
D
110VAC
6-24V
(RED)
OR
110VAC
(YELLOW)
1
1
0
V
A
C
24V
I3
DC
1
DC
2
DC
1
DC
2
RED
STRIP
YELLOW
STRIP
GREY
STRIP
GREY
STRIP
BLACK
STRIP
YELLOW
STRIP
Tag Wire Color
Routing
(A) – ORANGE / BLACK TRACER
R4 #12 to R9-A1
(B) – Q8 YELLOW / BLACK TRACER
R8-A1 to PLC Q8
(C) – Q4 YELLOW / BLACK TRACER
R4- A1 to PLC Q4
(D) – Q6 YELLOW / BLACK TRACER
R3-A1 to PLC Q6
(E) – Q2 YELLOW / BLACK TRACER
R2-A1 to PLC Q2
(F) – BLUE STRIP YELLOW / BLACK TRACER
R1-A1 to Blue TermBlocks
(G) – 01 ON VFD RED
R1-11 to VFD term 01
(H) – 02 ON VFD ORANGE
R1-14 to VFD term 02
9
1
2
3
4
5
6
7
8
RELAY DESCRIPTIONS
Relay 1
: Run signal to VFD.
Relay 2
: 2” Recirc motorized ball valve wired as normally open so the relay powers on
to close valve.
Relay 3
: 1" underflow (U/F) motorized ball valve, wired as normally closed so the relay
powers on to open valve. Relay is controlled by the PLC.
Relay 4
: 1
st
bypass relay wired as normally closed so the relay powers on to prevent
the bypass valve from opening. Relay is controlled by the PLC.
Relays 5, 6, and 7
: Standard activation relays, jumpered together so if one or all are
on, a signal is sent to Input 3 on the PLC, and the common on the bypass relay is
powered. Voltage varies based on wash needs, either 110V, or 24V AC or DC. Relay
is controlled by car wash controller.
Relay 8
: Dry contact for external signal to indicate reclaim OK/fault status.
Relay 9
: 2
nd
bypass relay for fail safe operation if PLC fails. (24v coil)
BROWN
STRIP
RECLAIM BOX up to PW400
PWS5M.V8.19
NEW Ozone & Touch Screen
First Use June 2019
RELAY FUNCTIONS
Summary of Contents for PURWATER RECLAIM 3.0
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