Winco PSS12H4W/D - Manual (Page 11)

PAGE 9 8009-30 60706-183
In addition to the power leads you will also need to run a
three wire 120 volt, 15 amp circuit from your distribution
panel to the generator. This circuit will be used to power
the battery charger.
The last four wires you will need are the DC control leads
(14 or 16 gauge) for the start circuit in the A.T.S. These
last two connections will be discussed later in more detail.
WINCO UL ATS (ASCO165)
See the ASCO installation manual for additional details
on proper wiring of the Automatic Transfer Switch.
The standby generator terminals in the A.T.S are marked
“ALTERNATE L2 & L6”. The “hot” leads G1 and G3 from
the generator are connected to the terminals L2 & L6.
The normal line power terminals in the A.T.S. are marked
“PREFERRED - L1 & L5”. The “hot” line power leads are
L1 and L3 from your normal power supply are connected
to terminals L1 and L5.
The load terminals in the A.T.S. are marked “LOAD - L3 &
L7”. The leads to the load distribution panel are connect
to terminals L3 & L7.
The neutral leads from all three locations are connected
to the isolated terminal lugs on the sidewall of the
cabinet. This terminal block is labeled “NEUTRAL” and
the terminal lugs are mounted on red isolation standoffs.
The ground leads from all locations are connected to the
grounded terminal lugs, also 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 entrance (or sub-panel) protect-
ing the contactor switch.
All wires should be installed in rigid or flexible conduit.
(Knockouts are provided in the control box)
Because of the many different types of service, feeder,
and distribution equipment, no specific wiring instruc-
tions can be provided. It is, however, recommended that
only copper wire be used. In all cases it is essential that
while the load is connected to the generator, there can be
absolutely no feedback from the generator to the power
line or the power line to the generator. When properly
installed, the normal A.T.S. control and safety systems
will eliminate all paths for feedback. Check with your
local electrical inspector on applicable local, state and
federal codes.
*************
***** WARNING *****
*************
A service disconnect must be installed in front of the
A.T.S. panel as the A.T.S is not service entrance rated.
This will allow you to test the generator under load.
Should you ever have to work on the switch, you will be
able to disconnect the power and work on the switch cold
without having the power company pull your meter.
To wire the automatic transfer switch into the existing
wiring, first determine which circuits will be on the
emergency load circuit. If the entire load is to be trans-
ferred, the transfer switch can be wired in directly after the
watt-hour meter and the service entrance, providing the
service entrance ampere rating is within the transfer
switch’s rated capability.
If only specific circuits are to be powered under emer-
gency power failure conditions, an additional distribution
panel designated “emergency distribution panel” must
be installed.
All selected emergency circuits are removed from main
distribution panels and reinstalled in the emergency
distribution panel. Suggested circuits: freezer, refrigera-
tor, furnace, emergency lights, sump pump, emergency
outlet circuits, etc. Total running load must not exceed
generator rating.
D.C. ELECTRICAL
INTERCONNECTION
*******CAUTION******
Never run the AC and DC wiring in the same conduit.
ASCO 165 UL SWITCH
Your DC connection points in the ASCO 165 UL ATS are
on the terminal block in the upper right hand corner of the
ATS panel. The terminal block (TB7) is numbered 1
through 9. These terminals will accept #22 - #14 stranded
wire. It is recommended that you use #16 for distances
up to 200 feet.
You need to run four (4) wires from the engine generator
set to the transfer switch, see table below.
Wire # Purpose Recommended Color
#5 Battery positive Black
#1 Battery Negative White
#24 Fuel Solenoid Red
#22 Start Orange
You can use any color you want, these color codes are
just a recommendation. The wires terminate on TB7 as
follows:
Wire # Color TB7 Terminal
#5 Black #3
#1 White #2
#24 Red #4
#22 Orange #7
Jumpers will need to be installed as follows:
Wire #
Color TB7 Terminals
#5 Black #3 & #5
#5 Black #5 & #8