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TSHC Wash Tank Thermostat
TSBC Booster Tank Thermostat
TRD
Rinse Cycle Cam
TRB Wash Cycle Cam
TRA Homing Cycle Cam
TR
Timer Motor
T2
120V:24V Transformer
T1
LINE:120V Transformer
RWV
Rinse Water Valve
R3 Power-Up Relay
R2
Hold-In Relay
R1 Fill Relay
MPS Main Power Switch
LT2
Cycle Light
LT1 Power ON Light
HCHL Tank Heat High Limit (Electric Heat ONLY)
HC1 Tank Heat Contactor or Steam Valve
FU1 & 2 Transformer Fuses
FTRA Fill Timer Cam
FTR Fill Timer Motor
EWS Extended Wash Switch
DSS Door Safety Switch
DR Door Safety Switch Relay
BCHL Booster Tank High Limit (ELECTRIC HEAT ONLY)
BC1 Booster Tank Contactor or Steam Valve
1MOL Wash Motor Overload
1M Wash Motor Contactor
1MTR Wash Motor
Tank Heat FusesFU3,4,5
T
O CUSTOMERS DISCONNECT SWITCH
PER LOCAL ELECTRICAL CODE
GND
24V
T2
43
DR
25
HC1
23
TSHC
TSBC
19
BC1
14
HC1
12
19
OFF
DR16
7
MPS
ON
DSS
42
R2
R3
R2C
FTR
R1
NC
NO
FTRA
11
1M
NO
NC
TRA
NO
NC
TRD
BCHL
HCHL
RWV
7
3
17
17
17
16
16
16
31
5
2
2
2
2
2
2
2
2
7
7
3
4
LT1
4
4
4
11
4
11
R3A
R2A
R2B
17
11
41
18
18
18
16
5
LT2
EWS
32
18
29
29
5
31
2
6
15
13
8
R1C
R1A
TR
R1B
3KW
T1
FU1 FU2
120V
1
6
18
7
3KW ELECTRIC TANK HEAT (IF USED)
ELECTRIC HEAT ONLY
ELECTRIC HEAT ONLY
21
1
2
2
8
TRB
2
2
30
2
2
7
6
3
6
7
18
18
18
L1 N
1MOL
1M1MOL
36
34
22
20
FU5
FU3
910
2
33
39
37
9KW
9KW ELECTRIC BOOSTER HEAT (IF USED)
28
BC1
26
USED ONLY ON THE 208-240V MODELS
L1 N
L1
N
1MTR
DIAGRAM STATE
END OF CYCLE
POWER - OFF
DOOR - CLOSED
B701478/A
NOT USED IN
115V 1 PH.
SEE NOTE 1
NOTE 1: IF SUPPLY IS 115 V 1 PH.,
T1 IS NOT USED. WIRES
#1 AND #2 ARE CONNECTED
TO THE FUSE BLOCK.
0 10 20 30 40 50 60 70 80 90
500 10 20 30 40 8060 70 90
500 10 20 30 40 8060 70 90
500 10 20 30 40 8060 70 90
FTRA
FTR
TRD
(TRC Not Used)
TRB
TR
TRA
0
0
10 20
10
20 40
4030
30
50
50
60 70
60
70
80
80
90
90
FILL TIMER CAM
FILL TIMER MOTOR
RINSE CYCLE CAM
WASH CYCLE CAM
HOMING CYCLE CAM
TIMER MOTOR
Wash = 45 secs.
Cycle = 60 secs.
NO
NC
NO
NC
NO
NC
NO
NC
Rinse = 14 secs.
Timed Fill = 90 secs.
Figure 40 - Electrical Schematic / 1 Phase (MH-60, 6N, 6L)
7
0
Detergent
Rinse Aid
Detergent
Signal