Winco ULPSS8B4W/E - Manual (Page 11)

045-00 60706-20
must not be larger than 00 amps. If you have a
25, 50, 200 amp or larger system and want to use
a 00 amp transfer switch, you will not be able to
transfer the complete electrical system. In this case
it will be necessary to install a secondary emergency
distribution panel. NOTE: THE MAXIMUM OUT-
PUT OF THE GENERATOR IS 33 AMPS AT 240
VOLTS. You must also take into consideration when
deciding whether to install an emergency distribution
panel.
AC ELECTRICAL
CONNECTIONS
NOTICE - CLASS 1 WIRING METHODS ARE TO
BE USED FOR ALL FIELD WIRING CONNEC-
TIONS TO TERMINALS OF A CLASS 2 CIRCUIT.
******************
***** WARNING *****
******************
A main line circuit breaker has been provided inside
the generator housing. During all wiring installation
make sure the breaker is in the off position and the
generator operators switch is in the off position.
Note: This symbol always indicates
ground where used.
GENERATOR CONNECTIONS
Minimum conductor sizes between the generator
and the ATS. Based on wire type and temperature
rating. Wire has been derated for 40° C ambient
temperatures.
WIRE TEMPERATURE RATING
CU Connector AL Connector
75° C # 8 AWG # 8 AWG
90° C # 8 AWG # 8 AWG
To gain acces to the customer connections remove
the end door panel opposite the muffler end. All
connections including AC and DC connections to the
ATS, 20 Volt power connection for battery charger,
and battery installation are made behind this door
panel. After removing the door panel you will need
to remove the cover over the customer connection
box. Remove the two bolts using a 7/6 inch open
end wrench, then remove the panel. See pages 9
and 20 for generator set and pad layout.
Four AC power leads are required between the
generator and the ATS. Two hot leads, a neutral
and a ground lead. You will then need to run both a
neutral and ground lead in addition to the two power
leads all the way back to your disribution panel. The
two power leads from the generator are marked G
and G3.
In addition to the power leads you will also need to
run a three wire 20 volt, 5 amp circuit from your
distribution panel to the generator. This circuit wll be
used to power the battery charger.
The last four wires you will need are the DC control
leads (4 or 6 gauge) for the start circuit in the ATS.
These last two connections will be discussed later in
more detail.
WINCO UL ATS (ASCO 165)
See the ASCO installation manual for additional
details on proper wiring of the Automatic Trans-
fer Switch.
The standby generator terminals in the ATS are
marked “ALTERNATE L2 & L6”. The “hot” leads
G and G3 from the generator are connected to the
terminals L2 & L6.
The normal line power terminals in the ATS are
marked “PREFERRED - L & L5”. The “hot” line
power leads are L and L3 from your normal power
supply are connected to terminals L and L5.
The load terminals in the ATS are marked “LOAD
- L3 & L7”. The leads to the load distribution panel
are connected to terminals L3 & L7.
The neutral leads from all three locations are con-
nected to the isolated terminal lugs on the sidewall
of the cabinet. This terminal block is labeled “NEU-
TRAL” and the terminal lugs are mounted on red
isolation standoffs.
The ground leads from all locations are connected to
the grounded terminal lugs also located on the side
wall. This set of terminals is labeled “GROUND”.
INSTALLATION NOTES
The load current carrying wires (L) and (T) must be
sized to handle the maximum load current without
excessive voltage drop. By code, the wire must be
heavy enough to handle the full current rating of the
main line circuit breaker (or fuse) in the enterance
(or sub-panel) protecting the contactor switch.
All wires should be installed in rigid or flexible con-
duit.