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Electronic Control* CCU1
PC Board 190.28 x 81.01 mm
Most used test points on
2-sided FR4
PC board for multimeter
checks.
Micro Pin
N
L1
WH
BK
Micro Pin
K4
Micro Pin
K1
Motor
HTR-N
Relay
Sense
Relay
Optional
Ferrite
(1 Loop)
Micro Pin
K3
HTR-L
Pilot
Relay
Relay
Fuse
F8
K2
W2
P4
BK
WH
Thermostat
L1
(Hi-Limit)
BU/R
N.C.
3 2
BU-R
Heater
1 - PH Sync
Element
Wash
Motor
Pump
Power Supply
13V
(+8V)
Level 1-3W
(N)
Level 2-4.4W
VCC
Level 3-7.4W
REF
(-5V)
Return Line 13 Volt relay coils go through Door Switch
Load (current) Sense for drain, vent and all other triac loads on Pilot
AC Input
Motor Sense circuit
Overfull/Leak Detection
is different for
(and Pilot Relay detection)
High vs Low Power motors
Fuse
F9
P5
6 P
7 P
3
1
3
1
3
1
Drain
3
1
Softener
Motor
FillValve*
Regen Valve
N
or
1
1
3
Overfill
(Float)
Switch
Fan Motor
(Not All
Models)
In Factory programming port
P2
(on top surface of PCB)
1
2
3
4
(Depopulate in production; use pads)
13V
Door Open Detection
Fan Load
(Current)
Sense
Pilot L1
Test
Analog
Pad For
All
Input
Triac
Loads
P8
P9
P11
P10
3
1
3
1
3
2
1
3
1
(Spare)
3
1
Vent Wax
Future
Motor
3
1
Fan Motor
(Spare)
Door Switch
3
1
Future
1
Dispenser
1
3
Solenoid
Or
Diverter
5
1
Motor
Flow
Optional
On some models
Meter
Dispenser
Wax Motor
Beeper
13V
VCC
Wide
Data
Digital
Analog
NTC
Opt
Foam
Turbo
13V
Input
Input
Input
Drive
Sig
Drive
P12
P13
6
5
4
3
2
1
3
1
3
1
O.W.I*
(NTC, Foam, & Turbidity Sensor)
(Spare)
Diverter
Future
Position
3
2
1
3
Switch Contact
(Closed During
Transitions)
2
3
4
Light
Softener
(on some models)
Salt Sensor
39K
(Closed When
Empty)
(Not All Models)
LCD UI
Capacitive Touch
4-pin
Keyboards 4-pin
P1-VCC
P4-REF
CR-
1
LED
P1A
P1B
Displays
14-pin
4
3
1
2
Mechanical
Active
P1C
Push-Button
Overlays
7
Boards
19-pin
6
20-pin
ZIF
5
P1A and P1B
4
User Interface
3
Wide Data
2
Connector Options
VCC
1
3
REF
Temporary
Connection Port
for Development
Tools (& future
service tools)
1
3
4
To Connector P13
2
2
1
3
2
1
Light
Light
Light In tub
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