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HEATERS
OUTPUT
LEDs
WASH
EXTENDED
WASH
T10
RINSEFILL
T9
FLOAT
SWITCH
LAMP
OUTPUT
JB2
T6
T5
FUSE 1A
T7
T8
DOOR
SWITCH
START
SWITCH
T2
T
F
WASH
OUTPUT
RINSE
OUTPUT
JB1
JB3
POWER
LED
T4
T3
5 X 20 MM
FAST ACTING
CLOSED JUMPER SHOWN FROM SIDE
PRINTED CIRCUIT BOARD
BLACK JUMPER SHOWN CLOSED.
LIFT & REMOVE TO OPEN.
WHITE BASE
MH6N, MH6O UP TO D3857 112676 REVC OPEN OPEN CLOSED
MH6N, MH6O D3858 - UP 113597 REVG CLOSED OPEN CLOSED
MH6L ALL 113597 REVG OPEN OPEN CLOSED
MODEL SERIAL NUMBER PART NUMBER JB1 JB2 JB3
MACHINE BOARD JUMPER SETTINGS
! ATTENTION - VERY IMPORTANT ! - VERIFY CIRCUIT BOARD
PART NUMBER AND JUMPER POSITION SETTINGS (JB1, JB2, JB3) PER
MACHINE MODEL AND SERIAL NUMBER AS INDICATED IN TABLE
BELOW. IMPROPER JUMPER SETTINGS MAY CAUSE ERRATIC
OPERATION.
H
H
TSHC WASH TANK THERMOSTAT
11
BOOSTER TANK THERMOSTATTSBC
LINE:120V TRANSFORMERT1
RINSE WATER VALVERWV
MAIN POWER SWITCHMPS
CYCLE LIGHTLT2
POWER ON LIGHTLT1
CYCLE SELECT JUMPERJB3
CYCLE SELECT JUMPERJB2
RINSE TIME SELECT JUMPERJB1
TANK HEAT HIGH LIMITHCHL
TANK HEAT CONTACTOR OR STEAM VALVE
HC1
TRANSFORMER FUSESFUT
TANK HEAT FUSESFUH
FLOAT SWITCHFSW
TIMER BOARD FUSEF1
DOOR SAFETY SWITCH, SIDE DOORSDS2
DOOR SAFETY SWITCH, FRONT DOORDS1
BOOSTER TANK HIGH LIMITBCHL
BOOSTER TANK CONTACTOR OR STEAM VALVE
BC1
WASH MOTOR OVERLOAD1MOL
WASH MOTOR CONTACTOR1M
DOOR SWITCH RELAY1CR
1MTR WASH MOTOR
EW
EW EXTENDED WASH SWITCH
2CR RINSE AID SIGNAL RELAY
PER LOCAL ELECTRICAL CODE
GND
TSHC
TSBC
BC1
HC1
DS2
1M
BCHL
RWV
T1
DETERG.
SIGNAL
RINSE
SIGNAL
1MOL
T1 NOT USED WITH
115V LINE SUPPLY
SEE NOTE 1
NOTE 1: IF SUPPLY IS 115V, T1 IS NOT USED. WIRES #1 AND 2
ARE CONNECTED TO THE FUSE BLAOCK IN PLACE OF #39 AND
40.
NOTE 2: USED ON MACHINES WITH INDEPENDENT FRONT
DOOR OPTION.
STEAM/ELECTRIC - 1 & 3 PHASE
MH-6/0/L/N-E ELECTRONIC CONTROL
701602 H
NONE
J.NEWTON
20MAY99
1
1
FSW
DOORS CLOSED
TANKS EMPTY
POWER OFF
DIAGRAM STATE
END OF CYCLE
LT1
6
DS1
1MTR
28
1M
27
29
28
27
ELECTRIC TANK HEAT IF USED
FUH HC1
4.7KW
FUH HC1
HC1FUH
BC1
BC1
ELECTRIC BOOSTER HEAT IF USED (SEE NOTE 3B)
BC1
NOTE 3:
A: ON 115V MACHINES THE WASH TANK HEATER IS 3 kW.
B: THE kW RATING OF THE BOOSTER ELEMENT IS DEPENDENT UPON THE
VOLTAGE AND DEGREE RISE OF THE SYSTEM. SINGLE PHASE MACHINES W/
ELEC. BOOSTER ARE 40° RISE ONLY. 40° RISE UNITS USE 7.5/10 OR 9 kW
ELEMENTS. 70° RISE UNITS USE 13.5/18 OR 17.7 kW ELEMENTS.
12
2
2
4
4
5
10
13
16
22
17 19
2120
14
30 33
31
34
32
35
34
31
30 33
32
31
30 33
34
35
L1 36
37
L2
L1
L2
L3
38
37
36
36
37
38L3
L2
L1
L1 L2 L3
L1 L2 L3
1M1MOL
1MTR
(IF USED)
FUT FUT
4039
ON SINGLE PHASE
MACHINES OMIT L3.
ON SINGLE PHASE
MACHINES OMIT L3.
L3
L2
L1
L1
L2
L3
L3
L1
L2
L2
L1
L1
L3
L2
L1
L2
2
SEE NOTE 2
1CR
1CRA
9
1CRB
1CRC
12
15
2CR
1M
2CRA
23
41
24
25
24
25
26
ELECTRIC HEAT ONLY
120V FAN SIGNAL
TO CONTACTOR COIL
SUPPLIED BY OTHERS
IF USED
43
4
TO TEST INPUTS T7, T8, T9, AND T10 A METER CAPABLE
OF READING DC VOLTAGES MUST BE USED.
1.) SET METER TO READ DC VOLTAGE
2.) PLACE BLACK LEAD TO T2
3.) PLACE RED LEAD TO TERMINAL BEING TESTED
i.e. PLACE RED LEAD TO T8 TO TEST DOOR SW.
4.) AN OPEN SWITCH WILL READ 4.7-5.3VDC
A CLOSED SWITCH WILL READ 0-1VDC
G JAM
17MAR03
ADDED ACR SUPPRESSORS
ADDED TROUBLESHOOTING REFERENCESB
4NOV99
JCN
LT1
REDRAWN MAIN POWER SWITCHC
7MAR00
JCN
MPS
ON OFF
1MOL
50
50
COIL
COMMON
NORMALLY OPEN
NORMALLY CLOSED
RELAY
D
REVISED SINGLE PHASE MOTOR OVERLOAD AND TANK HEAT HI LIMIT
9AUG00
JCN
4.7KW
4.7KW
HCHL
18
E
CHANGED TANK HEATER KW
30AUG02
WB
SEE NOTE 3A
4
ADD JUMPER / SN INFORMATION.
F
1 NOV02
MJM
AS
AS ARC SUPPRESSOR
G
ADD ARC SUPPRESSOR TO 1CR
04MAR03
JAM
CORRECTED JB1 SETTING, CLOSED SETTING WAS OPEN
H
2/3/04
WB
BY
DATE
DESCRIPTIONREV.
B
REV.
REV. DESCRIPTION
DATE
BY
CUSTOMER TO SUPPLY RATED VOLTAGE/PHASE/Hz,
AS SPECIFIED PER ORDER,TO DISCONNECT SWITCH.
ALL POWER SUPPLIED TO EACH CONNECTION POINT
MUST COMPLY WITH ALL LOCAL ELECTRIC CODES.
SCALEDR.BY
DATE SHEET
OF
129
13 14
5
1
8
4
AS
AS