Gorman-Rupp Pumps S4C65-E10 460/3 861279 thru 1142084 - Manual (Page 13)

CONTROL BOXES OM--04136
PAGE B -- 7 INSTALLATION
Field Wiring Connections (Incoming Power)
The electrical power used to operate
this pump is high enough to cause inju-
ry or death. Obtain the services of a qu-
alified electrician to make all electrical
connections. Make certain that the
pump and enclosure are properly
grounded; never use gas pipe as an
electrical ground. Be sure that the in-
coming power matches the voltage and
phase of the pump and control before
connecting the power source. Do not
run the pump if the voltage is not within
the limits.
The control is designed to regulate the power sup-
ply. The field wiring must be properly sized to en-
sure an adequate voltage supply. The voltage
available
at the pump motor must be within the in-
dicated range.
Table 1. Pump Motor Voltage Limits
Nominal
Voltage
Minimum
Voltage
Maximum
Voltage Phase
460 3 420 500
575 3 520 630
230 3 210 250
200 3 180 220
380 (50 Hz) 3 350 420
If the voltage is not within the recommended limits,
obtain the services of a qualified electrician to de-
termine the correct field wiring size and other de-
tails to ensure an adequate voltage supply.
Make certain all connections are tight and that ca-
ble entry points are rainproof. Support the cable
weight, if required, to prevent excessive strain on
cable clamps and cable.
NOTE
After the power cables have been connected to the
control box, make certain the connection is water-
proof.
Power Cable Connections
The electrical power used to operate the
control box is high enough to cause in-
jury or death. Obtain the services of a
qualified electrician to make all electri-
cal connections. Make certain that in-
coming power to the control box is in the
off position and locked out, or that the
power supply to the control box has
been otherwise cut off and locked out,
before connecting power or accessory
cables.
When necessary to change or connect power
cables to the control box, make certain the incom-
ing power is
OFF and LOCKED OUT. Make certain
the control box is properly grounded and that the
electrical data on the control matches the pump
motor name plate data.
Connect the power cable to the control box as
shown in the wiring diagrams in this section or in-
side the control box door. Use conduit or cable
clamps to secure the power and accessory cables
to the control box. Make certain that all connec-
tions are tight and that cable entry points are
rainproof.
Control Box Adjustments
For control adjustments and settings, refer to the
information inside the control box door.
To maintain overcurrent, short circuit
and ground fault protection, the man-
ufacturer’s instructions for selection of
the heater pack and setting of the in-
stantaneous trip circuit breaker (current
interrupter) or control interface module
must be followed. Failure to follow these
instructions can result in damage to the
pump and/or serious injury to person-
nel.