Winco PSS12H4W/A - Manual (Page 4)

PAGE 2 60706-167 4062-00
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 conditions specified
by the manufacturer of the applicable engines.
INTRODUCTION AND DESCRIPTION
The package standby system includes all items
necessary for a completely automatic standby power
system as standard equipment.
DESCRIPTION
This packaged standby system is designed to auto-
matically 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 electrical power and the Automatic
Transfer Switch (A.T.S.) 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 commer-
cial 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 of two
major components:
1) AUTOMATIC TRANSFER SWITCH
A wall mounted ASCO 165 Automatic Transfer
Switch (A.T.S.) designed for inside installation. The
transfer switch is UL1008 approved. A fourteen day
electronic exerciser circuit is installed in the A.T.S. as
standard equipment. The A.T.S. 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 retransfer
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 is shuts
down. Read and understand the owners manual before
installing, servicing or operating the transfer switch.
UL Automatic Transfer Switch Sizes
UNIT LINE SIDE GENERATOR
CONTACTOR SIDE CONTACTOR
PSS12H4W 100 AMPS 100 AMPS
200 AMPS 200 AMPS
Both the 100 amp and the 200 amp UL Switches are
available in single phase only.
2) ENGINE/GENERATOR
The engine generator set consists of a Honda, twin
cylinder, four cycle air cooled engine. The engine is
factory equipped to run on L.P. or N.G. fuel. The engine
operates at 3600 rpm and frequency regulation is main-
tained 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 connected to the
engine’s tapered (quill) crankshaft extension. The engine
generator is mounted in a NEMA 3R enclosure for outside
installation. Connection boxes are provided for all
customer connections (both AC output and DC control). A
customer supplied 235 CCA (BCI group U1) battery is
required to complete the installation. A customer supplied
235 CCA (BCI group U1) battery is required to complete
the installation. Engine operation is controlled by the
ASCO 165 Transfer Switch
COLD WEATHER OPERATION
Extreme cold weather operation requires special
considerations. Higher CCA batteries are required for
cold weather starting, 300 CCA or larger are recom-
mended. In addition you should consider installing an
oil heater kit and a battery warmer for reliable starting
during cold weather.
** NOTICE **
This unit will automatically transfer if a power outage
occurs while running in an exercise mode.
SPECIFICATIONS
GENERATOR
MODEL WATTS* VOLTS AMPS* HZ PH RPM
PSS12H4W 12,000 120/240 50.0 60 1 3600
*Derate 16% for Natural Gas operation. Derate 3.5%
per 1000 feet elevation above sea level.
FUEL CONSUMPTION
NG L.P. VAPOR
1000 BTU/CU FT 2520 BTU/CUFT
MODEL CF/HR BTU/HR #/HR* GAL/HR CF/HR BTU/HR*
PSS12H4W 190 190,000 9.0 2.10 76.6 194,000
*Based on full load operation