Hoshizaki JWE-620UA-6B - Manual (Page 21)

16
3. Control Board Diagram
a) Auxiliary Code U-1, U-2, U-3, V-0, A-0






Pins 1-4 shorted: 3 phase control
Pins 1-4 open: Booster Tank control
Internal Booster Tank Thermistor
Wash Tank Thermistor
Buzzer Output
X5
X4
MC2
X1
MC1
X1
3
X2
X3
X6
X7
5
7
Water Valve
1
XA
Connector
XA
Connector
XH Connector
Door Switch
Wash Tank Electrode
(Water Level Sensor)
[Communication]
Operation Panel
Board
(Shielded Wire)
1
2
3
4
5
Internal Booster Tank Water Level Float Switch
Internal Booster Tank Backup Water Level Float Switch
Phase Reversal Input
1 (CN1) 4 1 (CN2) 6
(CN3)
(CN4)
(CN9)
(CN8)
(CN7)
(CN5)
(CN11)
(CN10)
(CN6)
(CN12)
(CN13)
Transformer
11V 7.7V
Wash Pump
Rinse Pump
Wash Tank Heater
[External
Relay]
*1 Connectors CN 1 - 4 are VH Connectors
JWE-620UA-6B
1
2
3
4
1
2
3
1
2
1
4
1
2
3
1
2
1
2
5
6
1
2
3
4
5
6
7
8
9
10
MC3 Booster Tank Heater
1
200V from Transformer