10
A.O. SMITH / CENTURY MOTOR TERMINAL
BOARD AND VOLTAGE CHANGE PLUG
■
Pumps are Pre-Wired by HP:
• ½ hp wired for 115 volts
• ¾ hp - 1½ hp and larger wired
for 230 volts
• 2 hp is 230 volt only
NIDEC MOTOR
• Slide voltage switch to desired voltage prior to wiring.
WARNING: DISCONNECT POWER SOURCE BEFORE CHECKING. DO NOT MAKE ANY CHANGES WITH
POWER ON.
TECHNICAL DATA
TECHNICAL DATA
VOLTAGE CHANGES ARE MADE INSIDE THE MOTOR COVER, NOT IN THE PRESSURE SWITCH.
Fig. 7
DANGER
Hazardous voltage
can shock, burn or
cause death.
A.O. SMITH / CENTURY MOTOR DATA
GWT Number
Where Used
A.O. Smith Number
HP
Volts
Phase
Service Factor
Max. Load Amps
Watts Circuit Breaker
J04853L
J5(S), GB
C48A93A06
½
115/230
1
1.6
10.8/5.4
968
25/15
J05853L
J7(S), GB, GT07, (H)SJ07, HSC07
C48A94A06
¾
115/230
1
1.5
14.8/7.4
1336
30/15
J06853L
J10(S), GB, GT10, (H)SJ10, HSC10
C48A95A06
1
115/230
1
1.4
16.2/8.1
1592
30/20
J07858L
J15(S), GB, GT15, HSJ15, HSC15
C48C53A06
1½
115/230
1
1.3
21.4/10.7
1950
40/20
➀
J08854L
HSJ20, GB, GT20, HSC20
K48A34A06
2
230
1
1.4
12.9
2100
25
J09853
XSH30, GT30
7-196427-20
3
230
1
1.15
13.3
3280
30
SFJ04860
JRS5, JRD5, JB05
C48C04A06
½
115/230
1
1.6
12.6/6.3
990
25/15
SFJ05860
JRS7, JRD7, JB07
C48C05A06
¾
115/230
1
1.5
14.8/7.4
1200
30/15
SFJ06860
JRS10, JRD10, JB10
C48C06A06
1
115/230
1
1.4
16.2/8.1
1400
30/20
➀
Effective July, 1998, 230 V only.
VOLTAGE CHANGE PROCEDURE AND TERMINAL BOARD DESIGN
Jet pump motors have a voltage plug to facilitate simple voltage changes from 115V to 230V. All ½ HP motors are fac-
tory wired for 115V operation. If wired for 115V, operation at 230V will destroy the windings in a matter of seconds
and will not be covered by warranty. Larger HP motors are factory wired at 230V.
A.O. Smith / Century Terminal Board Design:
• L1 has two (2) male terminals, one switch wire is attached to one terminal.
• L2 has two (2) male terminals, one switch wire is attached to one terminal and when set up for 115V operation the
voltage plug is connected to the other.
• “A” has 1 male terminal, the voltage plug is always connected to “A”.
A.O. Smith / Century Voltage Change: failure to follow these instructions may damage the windings
• 115V - Place the Black voltage plug on the open L2 male terminal and the “A” terminal.
• 230V - Place the Black voltage plug only on the “A” male terminal. The 2nd L2 male terminal will be open.
L1
L2
A
115V
230V
L1
L2
A
115V
230V
DANGER
Hazardous voltage
can shock, burn or
cause death.
