Start-Up Operation - Barnes SFU SERIE Manual De Instalación Y Operaciones

E
FIGURE 6
N
SINGLE PHASE - 115 & 230 VAC
G
POWER CABLE
L
Green (Ground)
I
Black
S
White
H Capacitor
Capacitor
C-3.2) Overload Protection:
C-3.2-1) Single Phase - The type of in-winding overload
protector used is referred to as an inherent overheating
protector and operates on the combined effect of temperature
and current. This means that the overload protector will trip
out and shut the pump off if the windings become too hot,
or the load current passing through them becomes too high.
It will then automatically reset and start the pump up after
the motor cools to a safe temperature. In the event of an
overload, the source of this condition should be determined
and rectifi ed immediately.
MODEL HP
NO (kW)
SFU31 1/3
SFU51 1/2
SFU71 3/4
SFU102 1
2P536 1/3
2P537 1/2
2P538 3/4
2P539 1
SFU2W2L .19 (.14)
SFU3W2L .28 (.22)
SFU4W2L .43 (.32)
SFU6X2L .58 (.43)
Pump rated for operation at ± 10% voltage at motor.
Winding Resistance ± 5%,
MOTOR LEADS
Green
Straight Connector
Straight Connector
Flag Connector
Flag Connector
VOLT/ Hz RPM NEMA
PH (Nom) START
CODE
115/1 60 3450 J
115/1 60 3450 E
115/1 60 3450 D
230/1 60 3450 E
115/1 60 3450 J
115/1 60 3450 E
115/1 60 3450 D
230/1 60 3450 E
110/1 50 2850 M
110/1 50 2850 H
110/1 50 2850 H
220/1 50 2850 H
DO NOT LET THE PUMP CYCLE OR RUN IF AN
OVERLOAD CONDITION OCCURS !
If current through the overload exceeds the values listed, an
intermediate control circuit relay must be used to reduce the
current or the overload will not work properly.
TEMPERATURE SENSOR ELECTRICAL RATINGS
Volts
110-120
220-240
C-3.3) Wire Size:
Consult a qualifi ed electrician for proper wire size.
See Table for electrical information.
SECTION: D START-UP OPERATION
D-1) Check Voltage and Phase:
Before operating pump check to make sure that the voltage
and phase information stamped on the pump's identifi cation
plate matches the available power.
D-2) Check Pump Rotation:
Before putting pump into service for the fi rst time, the motor
rotation must be checked. Improper motor rotation can result
in poor pump performance and can damage the motor and/or
pump. To check the rotation, momentarily apply power and
observe the "kickback". "Kickback" should always be in a
counter-clockwise direction as viewed from the motor end of
the pump ("kickback" is always opposite to impeller rotation).
FULL LOCKED CORD
LOAD ROTOR SIZE
AMPS AMPS
8.0 21.0 16/3
9.5 21.0 16/3
12.0 28.0 16/3
7.0 21.0 16/3
8.0 21.0 16/3
9.5 21.0 16/3
12.0 28.0 16/3
7.0 21.0 16/3
6.7 17.5 16/3
7.9 17.5 16/3
10.0 23.3 16/3
5.8 17.5 16/3
6
Continuous Inrush
Amperes Amperes
3.00 30.0
1.50 15.0
CORD CORD WINDING
TYPE O.D RESISTANCE
inch (mm) MAIN--START
SOW 0.395 (10) 2.26 -- 20.34
SOW 0.395 (10) 1.54 -- 16.21
SOW 0.395 (10) 0.99 -- 16.17
SOW 0.395 (10) 2.81 -- 15.04
SOW 0.395 (10) 2.26 -- 20.34
SOW 0.395 (10) 1.54 -- 16.21
SOW 0.395 (10) 0.99 -- 16.17
SOW 0.395 (10) 2.81 -- 15.04
SOW 0.395 (10) 2.26 -- 20.34
SOW 0.395 (10) 1.54 -- 16.21
SOW 0.395 (10) 0.99 -- 16.17
SOW 0.395 (10) 2.81 -- 15.04