6
OPM-117/B
INTRODUCTION
PRODUCT DESCRIPTION
The Package Standby System is designed to automatically
provide standby power to unattended loads during
electrical outages. Upon interruption of normal electrical
service, the Packaged Standby System electrical control
circuits will automatically start the engine. The generator
will produce electrical power and the Automatic Transfer
Switch (ATS) will automatically transfer the electrical loads
to the engine-generator set. Upon restoration of normal
electrical service the emergency transfer switch will sense
return of the normal commercial power. The Automatic
Transfer Switch will transfer the load back
to the normal commercial power source. The engine
control circuits will begin a cool-down cycle, after which the
fuel supply will be shut off and the engine ignition system
disabled.
These packaged standby systems consist of two major
components:
1. AUTOMATIC TRANSFER SWITCH
A wall mounted ASCO 185 or ASCO 300 Automatic
Transfer Switch (ATS) designed for inside or outside
installation. The transfer switch is UL1008 approved. A
fourteen day electronic exerciser circuit is installed
in the ATS as standard equipment. The ATS also contains
the power failure sensing circuitry necessary to start and
stop the engine generator set. The transfer switch is also
equipped standard with a 3 second start delay, and a 15
second transfer delay to allow the engine to warm up
before transferring the load to the generator. When the
line power is restored the ATS has a 5 minute transfer delay
to allow the incoming utility to stabilize before transferring
back to line power and then an additional 1 minute engine
cool down delay before the engine shuts down. Read
and understand the ATS owners manual before installing,
servicing or operating the transfer switch.
MINIMUM
UNIT
VOLTAGE
ATS
AMPERAGE
PSS60-3
120/240
230
PSS60-4
120/208
200
PSS60-17
120/240
200
PSS60-18
277/480
100
PSS90-3
120/240
400
PSS90-4
120/208
400
PSS90-17
120/240
400
PSS90-18
277/480
150
2. ENGINE / GENERATOR
The engine generator set consists of a GM 5.7L, Industrial,
four cylinder, liquid cooled engine equipped to run on L.P./
N.G. fuel. The engine operates at 1800 rpm and frequency
regulation is maintained by the electronic governor within
.5 cycles variation, from no load to rated load. The generator
is a single bearing, direct drive, rotating field design. The
generator is connected to the engine flywheel via flexible
drive disks. The engine generator is available mounted in a
weather proof enclosure for outside installation. Connection
boxes are provided to all customer connections (both AC
output and DC control). A customer supplied 12 Volt, 650
CCA (BCI group 24) battery is required to complete the
installation. Engine operation is controlled by a Deep Sea MKII
(DSE) engine mounted in the engine generator enclosure.
NOTICE:
These units will automatically transfer if a power outage
occurs while running in an exercise mode.
PREPARING THE UNIT
START-UP CHECK LIST
A Start-Up Completion & Warranty Validation Form was
sent along with this manual. This must be completed and
returned to WINCO Inc. within 180 days of the factory
invoice date.
If this form is not returned, the Warranty may be voided.
UNPACKING
1. As you receive your unit, it is critical to check it for any
damage. If any damage is noted, it is always easiest to
refuse the shipment and let WINCO take care of the
freight claim. If you sign for the unit, the transfer of the
ownership requires that you file the freight claim
2. Before proceeding with the preparations of your new
generator for operation, take a couple of minutes to
ensure the unit you have received is the correct model
and review the specification pages in this manual to
ensure that this unit meets your job requirements.
CAUTION: EQUIPMENT DAMAGE:
These units are shipped with oil and a 50/50 mix of coolant.
Be sure to check all fluid levels before operating. See engine
manufacturer’s instruction manual for recommended oil
requirements before initial starting.
Once generator set is on-site:
1. Carefully remove the crate.
2. After inspecting the engine-generator for external,
physical damage, locate and check the following items
packed with the unit:
a. Installation and Operator’s Manual.
b. Engine manufacturer’s instruction manual.
c. Start-up and warranty validation form.
d. Battery hold-down brackets & hardware.
e. Unit components or accessory items shipped loose
for on-site installation.
f. Optional accessories.
3. Remove main frame hold-down bolts.
4. Unit can now be lifted from shipping rails.
