Winco ATS User Manual
Page 4

PAGE 2
60706-131
8107-00
TESTING POLICY:
Before any Automatic Transfer Switch (A.T.S.) is shipped
from the factory, it is fully checked for performance.
Rated capability of the Automatic Transfer Switch is
based on engineering tests of typical units, and is
subject to, and limited by, the temperature, and other
conditions specified by the manufacturer.
DESCRIPTION
These wall mounted Automatic Transfer Switch (A.T.S.)
are designed for inside installation. The A.T.S. consists
of a line side contactor and a generator side contactor.
The contactors are both electrically and mechanically
interlocked.
An automatic taper battery trickle charger (40 MA max.)
and a seven day electronic exerciser clock are installed
in the A.T.S. as standard equipment. The battery trickle
charger is not designed to recharge a low battery, but is
designed to keep a fully charged battery in peak operat-
ing condition. The exerciser clock is electronically
programmable, which allows you to set multiply exercise
periods during the week. These exercise periods can be
from 1 second long to hours long depending on how
long you want it operate.
The A.T.S. also contains the power failure sensing
circuitry necessary to send a start/stop signal to the
engine generator set. These switches are designed to
close to ground (Battery Negative) upon failure of normal
power. If the engine control you are using needs a
positive signal or some other type of signal to initiate the
start sequence you will have to install a pilot relay in the
start circuit. (Consult the factory for details.)
During normal operation the A.T.S. will supply normal line
power to the loads connected to the load terminals in the
switch. Upon an interruption of normal electrical service
the A.T.S. will close the start/stop relay sending a start
signal to the engine-generator set. Once the engine-
generator is producing electricity, the Automatic Transfer
Switch will transfer the connected loads to the engine-
generator set. Upon restoration of normal electrical
service the A.T.S. will sense the return of the normal
commercial power and retransfer the connected loads
back to the normal power source. At the same time the
start/stop relay will open removing the start signal being
sent to the engine control, allowing the engine-generator
set to shut down.
UNPACKING INSTRUCTIONS
** NOTICE **
When unpacking the Automatic Transfer Switch, be sure
to inspect it carefully for freight loss or damage. If loss or
damage is noted at the time of delivery, require that the
person making the delivery make note of the loss or
damage on the freight bill, or affix his signature under the
consignor’s memo of the loss or damage. Contact the
carrier for claim procedures.
When loss or damage is noted after delivery, segregate
the damaged material, and contact the carrier for claim
procedures. Be sure to retain the packaging material for
carrier inspection.
“Concealed Damage” is understood to mean damage to
the contents of a package which is not evident at the time
of delivery by the carrier, but which is discovered later.
The carrier or carriers are responsible for merchandise
lost or damaged in transit. The title to goods rests with
the consignee when generators are shipped F.O.B.
factory, and only the consignee can legally file a claim.
UNPACKING:
1.
Carefully remove the carton.
2.
After inspecting the Automatic Transfer Switch for
external physical damage. Carefully inspect the
contactors, contactor interlocks and the contactor
mountings, to insure no damage has occurred to the
contractors during shipment and handling.
3.
Check inside the carton for the owner’s manual,
wiring diagram and parts list.
INSTALLATION
General Information
*************
***** WARNING ****
*************
Before proceeding with the installation, be sure the
operation selector switch is in the STOP position.
Before beginning the installation process recheck the
rating of the transfer switch to be certain it can handle the
intended load and is compatible with the entrance
voltage, phase and current ratings. Plans for installation
should be prepared with proper attention to mechanical
and electrical engineering detail to assure a satisfactory
installation. The information in this manual is offered
only as a guide to finalizing your installation plans.