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4- ALL POLES DISCONNECT MUST BE PROVIDED BY THE
INSTALLER
RC
1 F, 250VAC
m
1 F, 250VACm
m1 F, 250VAC
2 SPEED
250V
10
B
L
U
C2
BRN
S
B
L
U
2
B
L
U
2
B
L
U
1
B
R
N
C1 BLU
17
B
L
U
H5
B
R
N
A5
B
R
N
A6 BRN
A3 BLU
A4 BRN
A4
B
R
N
BUZZER
TIMER
2
1
4
S
14
B
L
K
18
W
H
T
Used ONLY
on CO1-E
CIRCUIT
BREAKER
16 BRN
6 BRN
13 BRN
L2
4
3
2
1
P4
P3
P2
P1
SELECTOR
SWITCH
PILOT
LIGHT
(POWER)
DOOR
SWITCH
C
NC
NO
BUTT
CONNECTOR
230/400 3N
T4
T3
T2
T1
L1
L2
L3
L4
VALVE
WATER SOLENOID
BLU
RED
YEL
BLK
GND
GRN/YEL
7 BRN
8 WHT
4 BLK
5 BLU
2- ALL INTERNAL WIRES TO BE RATED 200° C AND 600 VOLTS.
TO BE # 14 AWM.
1- # 5 BLUE WIRES TO BE # 10 AWM. ALL OTHER WIRES
NOTES:
SENSOR
WHT
RED
GC20-3006
HEATING ELEMENTS
AMBER
PILOT LIGHT
(THERMOSTAT)
250V
LIGHTS
28 BRN
28 BRN
26 BLK
27 WHT
25 BLU
24 BLU
23 BLU
7 BRN
8 WHT
4 BLK
5 BLU
16 BRN
A1
H1
H2
STEAM OPTION
A2 BRN
A1 BLU
29 BLU
31 BLU
H2
B
R
N
H1 BRN
POTENTIOMETER
STEAM TIMER
STEAM SWITCH
7
1
2
6
5
4
3
L3
L1
N
THERMOSTAT
ROBERTSHAW
4 WIRE
3 PHASE
4 POLES,40 AMP
CONTACTOR
BLOCK
TERMINAL
MOT
TERMINAL
BLOCK
LIGHT
SWITCH
15 BLU
HI
LO
COM
3- ALL HEATING ELEMENTS TO BE 230 VOLTS - 3 KW FOR COH-E
AND 3.3 KW FOR CO1-E
9
B
L
U
12
B
L
U
S
B
L
U
10 BLU
A3 BLU
C1 BLU
H6 BRN
H3 BRN
S2 BRN
S1BRN
11 BRN
1
B
R
N
N
L1
L3
5 BLU
3 PHASE
4 WIRE
4 BLK
8 WHT
16 BRN
13 BRN
L15B U
7 BRN
L2
TC+
TC-
L1
L2
NO
COM
OOOX
OOXO
OXOO
OXXO
11
WIRING DIAGRAM - STAR CONNECTION - COH-E & CO1-E DWG. 1040-71B 8/98