Advance acoustic 56514925, Service Manual

Page: 194 / 260

Solution System 194 Service Manual – Advance 7765 / Nilfisk CR1500
ESP/Recycle Option Wiring Diagram
Circuit Description
• (Also refer to the
Recovery System
section.) When the water level in the recovery tank is high enough to
actuate (close) the Recovery High Switch and switch on the High Recovery Warning Light, a connection
off of wire
41
provides positive voltage to terminal
5
on the
ESP
(Recycling System)
On/Off Switch
. When
the
ESP On/Off Switch
is closed, the
ESP Pump
will switch on to pump filtered recovered water from the
recovery tank into the solution tank.
• When the
ESP
(Recycling System)
On/Off Switch
is closed, positive
voltage is provided to the
LS-DMP Switch
. When the Operator
moves the solution control lever forward off of the “no flow”
position, a roll pin on the solution control lever actuates (closes)
the
LS-DMP Switch
which provides positive voltage to the
Rheostat
Switch
. The
Rheostat Switch
is a two-terminal potentiometer that
controls the voltage to the
Detergent Pump
to regulate the detergent
pump speed/detergent flow to the solution line.
• When the detergent level in the detergent tank drops low enough to actuate (close) the
Detergent Low Switch
(liquid level switch), the
Detergent Low Switch
provides positive
voltage to light th
e Detergent Low Light
.
• When solution level in the solution tank rises high enough to actuate (close) the
Solution
High Switch
(liquid level switch) in the solution tank, the
Solution High Switch
provides
positive voltage to light the
Solution High Light
.
From W
ire #19 at Connector Q-e
From W
ire #44 at Connector
Y
-a
From W
ire #41 at Recovery T
ank Full Light
2 2 1 2A 9A 2
Solution High Light
1
1
1 1 2 1A 9A
8A
10 1 5 3
8 1
K
E
K1
E
K
C 4
9
9B 1 2
D D
7A 7 2
K K1
R1
F K1
F K
2 5
6
K1
C
K
A A
K1 K
10
2
Detergent Low Light
LS-DMP
Switch
Rheostat
Switch
ESP On/Off
Switch
Detergent
Low Switch
Solution
High Switch
ESP Pump
4 4A
+ - M
Detergent Pump
+ - M
B-
B-
B B
K1 K
LS-DMP
Switch