7
February 2007
Part No. 891817 Rev A
2.3.4. Wiring
•
All wiring should be UL-Listed, gasoline- and oil-resistant wire rated at least 90ºC,
600V, Gas & Oil Resistant.
•
All AC wire terminations should be made in the motor junction box. Make sure all wire
connections are tightly spliced and secured with a wire nut. Use electrical tape to close
the open end of the wire nut. After completing the wiring terminations, securely fasten
the junction box cover using all of the supplied bolts.
•
The AC wire size will depend upon the distance from the pump to the circuit breaker
panel. Reference the recommended sizes in the following chart.
RECOMMENDED WIRE GAUGE SIZES
Distance
Feet
Meters
Wire Gauge
25’
7
m 14
50’
15
m 14
100’
30
m
12
150’
46
m
10
200’
61
m
8
250’
76m
8
300’
91m
8
•
If two pumps are wired from the same circuit breaker, increase the wire size to handle the
additional load.
•
Auxiliary AC Control Lead
o
An auxiliary AC Control Lead wire (brown) is provided in the motor junction box.
This line is hot when the pump is turned on and may be used to provide a switch
detect to a fuel management system, open a solenoid valve in the supply line for
positive head pressure applications, or power a signal light.
o
Maximum load is one amp.
o
Check the “on” voltage of the auxiliary lead and make sure it is compatible with any
equipment being connected.
o
The wire size for the auxiliary AC Control lead should be 14-gauge.
o
If the auxiliary lead is not used, make sure the wire is capped with a wire nut and the
open end of the wire nut is covered with electrical tape.
2.3.5. Grounding
•
All pumps and electrical connection boxes must be grounded per NFPA 70.
•
Connect a ground wire between the motor junction box ground lug and the main
electrical service panel.
•
Make sure a ground rod is properly installed and wired to the ground bus strip of the
main electrical service panel in accordance with the National Electrical Code. Unless
prohibited by local regulations, it is recommended that the neutral and ground bus strips
be tied together.
