Bell and Gossett Hoffman Specialty SCC4, Instruction Manual

Page: 3 / 12

3
MOTOR
1
MOTOR
115/1 60*
LINE
L1
L2
FLOAT SWITCH
POWER SUPPLY,
PRIMARY PROTECTION
BY OTHERS
1DW129A 1DW130A
LINE
L2
L1
POWER SUPPLY,
PRIMARY PROTECTION
BY OTHERS
FLOAT SWITCH
REPRESENT ATIVE WIRING DIAGRAMS
WATCHMAN ® SIMPLEX UNITS, SINGLE PHASE
WATCHMAN ® AND SCC1 DUPLEX UNITS, SINGLE PHASE
FIELD WIRING SHOULD BE IN ACCORDANCE WITH
NATIONAL ELECTRIC CODE.
DASHED LINE WIRING & COMPONENTS BY OTHERS
*230/1/60 VOLTAGE PERMISSIBLE IF MOTOR IS
RECONNECTED PER 'HIGH VOLTAGE' DIAGRAM
ON MOTOR AND APPLICABLE PRIMARY PROTECTION
IS SUPPLIED.
MOTOR
2
MOTOR
1
MOTOR
2
MOTOR
1
115/1/60*
LINE
115/1/60*
LINE
L1
L2
L1
L2
1DW129B 1DW130B
LINE
LINE
L2
L1
L2
L1
POWER SUPPLY,
PRIMARY PROTECTION
BY OTHERS
POWER SUPPLY,
PRIMARY PROTECTION
BY OTHERS
MECHANICAL
ALTERNATOR
MECHANICAL
ALTERNATOR
FIELD WIRING SHOULD BE IN ACCORDANCE WITH
NATIONAL ELECTRIC CODE. DASHED LINE WIRING & COMPONENTS BY OTHERS
MODEL SCC2, SCC3 & SCC4 (DUPLEX, 3 PHASE UNITS WITH CONTROL PANEL)
CONNECTION DIAGRAM ELEMENTARY DIAGRAM
LINE
1 H3 H 4
LINE
TRANSFORMER FUSE TYPE
FNQ-R OR EQUIV.
600V / AMP
1 2
MAIN DISCONNECT SWITCH
AND SHORT CIRCUIT
PROTECTION BY OTHERS
FIELD WIRING SHOULD BE IN
ACCORDANCE WITH THE N.E.C.
TRANSF. PRIMARY JUMPER
PER TRANSF. LABEL
1 H3 H 4
L2
L1
L2
L1
GRN
GRN
COIL COIL
COIL COIL COIL COIL
X1 X1 X2 X2
H1
H4
H1
H4
1 1
5 4 10 9
5
7
13
3 S2
S1
T1 T2 T3
T1 T2 T3
3
8
4 7 9 12
MOTOR
1
MOTOR
2
MECHANICAL
ALTERNATOR
(AUTOMATIC)
7 4
9
12
ALT.1
ALT.2
ENCLOSURE
FUSE
TRANSF #1
(115 V.A.C. SEC. 1)
MECH.
ALT.
(ALT. 1)
TRANSF. #2
(115 V.A.C. SEC. 1)
FUSE
MECH.
ALT.
(ALT. 2)
MOTOR
2
MOTOR
1
L1
L2
L3
T1
T2
T3
S1
S1
S1
GRN
GRN
X1 X2
X1 X2
L1
L2
L3
T1
T2
T3
S2
S2
S2
S1
S2
10
9 12
13 10
O.L.
O.L.
4 7 8 5
5
2DW128
SCC2, SCC3 AND SCC4 UNITS ARE
FACTORY WIRED FOR 230 VOLT,
3 PHASE 60 HERTZ. KITS ARE
AVAILABLE TO CONVERT TO 280V
OR 460 VOLTS.