Winco ULPSS8B4W/E - Manual (Page 4)

045-00 4 60706-20
e. Always avoid hot mufflers, exhaust manifolds,
and engine parts. They can cause severe
burns instantly.
f. Installing a generator set is not a “Do-it-your-
self” project. Consult a qualified, licensed elec-
trician or contractor. The installation must com-
ply with all national, state, and local codes.
TESTING POLICY:
Before any generator is shipped from the factory, it
is fully checked for performance. The generator is
loaded to its full capacity, and the voltage, current
and frequency are carefully checked.
Rated output of generators is based on engineering
tests of typical units, and is subject to, and limited
by, the temperature, altitude, fuel, and other condi-
tions specified by the manufacturer of the applicable
engines.
INTRODUCTION AND
DESCRIPTION
The package standby system includes all times
necessary for a completely automatic standby power
system as standard equipment.
DESCRIPTION
The package standby system is designed to au-
tomatically provide standby power to unattended
loads during electrical outages. Upon an interruption
of normal electrical service the packaged standby
system electrical control circuits will automatically
start the engine. The generator will produce electri-
cal 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 retransfer 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 ot two
major components:
1) AUTOMATIC TRANSFER SWITCH
A wall mounted ASCO 65 Automatic Transfer
Switch (ATS) designed for inside installation. The
transfer switch is UL008 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 5 second transfer delay to allow the engine
to warm up before transferring the load to the gen-
erator. When the line power is restored the ATS has
a 5 minute retransfer delay to allow the incoming util-
ity to stabilize before transferring back to line power
and then an additional  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.
UL Automatic Transfer Switch Sizes
UNIT LINE SIDE GENERATOR
CONTACTOR SIDE CONTACTOR
ULPSS8B4W 00 AMPS 00 AMPS
200 AMPS 200 AMPS
Both the 00 amp and the 200 amp UL Switches are
available in single phase only.
2) ENGINE / GENERATOR
The engine generator set consists of a Briggs &
Stratton Vanguard, twin cylinder, four cycle air
cooled engine. The engine is factory equipped to
run on LP or NG fuel. The engine operates at 3600
rpm and frequency regulation is maintained by the
engine governor within 4 cycles variation (62.5 Hz
- 58.5 Hz) from no load to rated load. The generator
is a brushless, single bearing, direct drive, rotating
field design. The generator is connnected to the
engine’s tapered (quill) crankshaft extension. The
engine generator is mounted in a drip-proof en-
closure for outside installation. Connection boxes
and terminal blocks are provided for all customer
connections (both AC output and DC control). A
customer supplied 2 volt 500 CCA (BCI group 26)
battery is required to complete the installation.
** NOTICE **
This unit will automatically transfer if a power outage
occurs while running in an exercise mode.