Winco RP25/A - Manual (Page 12)

Page 10
60706-201 8190-00
5. For most installations 16-gauge wire is sufficient to
handle the control signal. On extremely long runs in-
crease wire size to minimize voltage drop.
6. Locate the neutral and full power output load connec-
tion terminal on the generator.
7. Locate and identify the “neutral” and “generator”
connections in the automatic transfer switch.
8. Connect the load block to the transfer switch using
the proper wire sizes. Refer to the National Electric Code
Handbook (NFPA 70) for proper wire type and sizing.
Use Table 310-16 for wiring run through conduit and table
310-17 for free air wiring.
Use extreme caution when installing the delta voltage
pattern. One power leg of this 3 phase pattern produces
208 volts measured from line to neutral. Be sure to match
the location of the generator wild leg to the location of the
wild leg on the incoming power service. Failure to do so
will cause equipment damage to any 120 volt load
incorrectly connected to this line.
9. Connect the neutral to the transfer switch using the
same wire size.
10. For isolated neutral operation remove the jumper wire
between the ground lug and neutral connection block.
Then route a ground lead back to system ground.
11. Ground the Mobile Diesel Generator set using an 8 ft.
copper ground rod or other approved grounding system.
Connect #4 Awg Copper cable from the ground lug on the
generator to the ground rod.
12. Depress the "RUN" button on the RP25 control panel
to start the generator set.
13. Check the voltage at the transfer switch. Verify that it
matches the incoming power line voltage line-to-line and
line-to-neutral on each leg.
16. Check the three phase rotation pattern. Insure that
you have the same rotation, with both the generator and
the normal power source.
17. Depress the “STOP” button on the front of the engine
control. Let the unit stop and then depress the “AUTO”
button. The unit is now in automatic start mode. Also be
sure the "AUTO" light is lighted on the control, this light
tells you it is in automatic mode. See control panel layout
for additional information.
18. If the transfer switch has a test button use it to test
the complete system. The unit should start up and the
transfer switch should transfer the load to the generator.
19. Compare the amperage reading from each leg on the
generator and insure that none of the legs is exceeding
the nameplate rating on the generator.
20. Upon completion of the test, leave all control mode
switches in the “AUTO” position.
21. The system is now ready to start and power the loads
should the power fail.
F. CONNECTING THE LOADS
WARNING -ALL WIRING MUST BE DONE IN ACCOR-
DANCE WITH NATIONAL ELECTRIC CODE NFPA 70
There are two ways the loads may be connected to a
Mobile Diesel Generator.
1. FRONT PANEL - A variety of receptacles have been
provided for your convenience on the front panel. The 120
volt receptacles are powered when the voltage selector
switch is in the 120/240 single and three phase and 120/
208 three phase volt position. The 240 volt receptacles
are only usable in the 120/240 volt single and three phase
position. In the 120/208 volt three phase position the 240
volt receptacles have only 208 volts at them.
2. FULL POWER LOAD CONNECTION TERMINAL
BLOCK - For remote connections and connecting load
distribution boxes, heavy duty terminal blocks have been
provided. These terminal blocks are located on the rear of
the unit just below the main line circuit breakers. The
neutral and ground are connected together at this panel.
For use with an isolated neutral, remove the jumper strap
between the neutral connection block and the ground lug.
This will isolate the neutral from the ground and allow you
single point grounding at a distribution panel. When using
these terminal blocks be sure to use wire rated large
enough to carry your full load or the full rated load of the
generator.
3. GROUNDING THE UNIT - To comply with current
safety standards this generator set must be properly
grounded. Ground the Mobile Diesel Generator set by
driving an 8 ft. copper ground rod into the earth. Then
connect a #4 AWG ground cable from the grounding lug
on the generator to the ground rod.