Winco PSS12H4W/D - Manual (Page 4)

PAGE 2 60706-183 8009-30
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 neces-
sary for a completely automatic standby power system as
standard equipment.
DESCRIPTION
This packaged standby system is designed to automati-
cally 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
PSS12H 100 AMPS 100 AMPS
200 AMPS 200 AMPS
Both the 100 amps and the 200 amps UL Switches are
available in single 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
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 connected to the
engine’s tapered (quill) crankshaft extension. The
engine generator is mounted in a drip-proof enclosure
for outside installation. Connection boxes and terminal
blocks are provided for all customer connections (both
AC output and DC control). A customer supplied 12 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.
SPECIFICATIONS
GENERATOR
MODEL WATTS* VOLTS AMPS* HZ PH RPM
PSS12H 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*
PSS12H 190 190,000 9.0 2.10 76.6 194,000
*Based on full load operation
L.P. TANK SIZING
Required L.P. Tank size for L.P. Vapor withdrawal operat-
ing at various outside temperatures given in degrees
Fahrenheit (Celsius)
TANK TEMPERATURE
MODEL 60 f(16 c) 32 f(0 c) 0 f(-18 c) -20 f(-29 c)
PSS12H 150 Gal. 250 Gal. 500 Gal. 1000 Gal.
ENGINE SPECIFICATIONS:
Refer to engine operating and maintenance instructions.