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SPECIFICATIONS
GENERATOR
MODEL
WATTS
VOLTS
AMP
HZ
PH
RPM
PSS50LS
50,000
120/240
208*
60
1
1800
PSS50LS-4
50,000
120/208
151*
60
3
1800
PSS50LS-17
50,000
120/240
174*
60
3
1800
PSS50LS-18
50,000
277/480
75*
60
3
1800
PSS75LS
75,000
120/240
312**
60
1
1800
PSS75LS-4
75,000
120/208
225**
60
3
1800
PSS75LS-17
75,000
120/240
261**
60
3
1800
PSS75LS-18
75,000
277/480
113**
60
3
1800
*Derate 11% for Natural Gas operation. Derate 3.5% per
1000 feet elevation above sea level.
**Derate 7% for LP operation. Derate 3.5% per 1000 feet
elevation above sea level.
FUEL CONSUMPTION
NG (1,000 BTU/CU FT) L.P. VAPOR (2,520 BTU/CU FT)
MODEL
CF/HR
BTU/HR
#/HR GAL/HR CF/HR
BTU/HR
PSS50LS
725
725,000
36.0
8.5
300
756,000
PSS75LS
1000
1,000,000
43.2
10.2
360
907,200
L.P. TANK SIZING
Minimum required L.P. Tank size for L.P. Vapor withdrawal
operating at various outside temperatures given in degrees
Fahrenheit (Celsius)
TANK TEMPERATURE
MODEL
60 F(16 C) 30 F(0 C) 0 F(-18 C) -20 F(-29 C)
PSS50LS
500 Gal
1000 Gal 1500 Gal* 5000 Gal*
PSS75LS
500 Gal.
1000 Gal. 2000 Gal.* 5000 Gal.*
*Recommend liquid withdrawal at these temperatures.
ENGINE SPECIFICATIONS:
Refer to engine operating and maintenance instructions
** NOTICE **
Regarding Engines - This manual covers the generator portion of
these units. See the separate engine instruction manual for
engine-related problems, detailed engine information and engine
warranty.
** CAUTION **
EQUIPMENT DAMAGE - Be sure to check the engine oil level
frequently as specified in the engine manual.
The engine manufacturer has established an excellent world-wide
engine service organization; engine service is available from a
nearby authorized dealer or distributor; check the Yellow Pages
of the telephone directory under “engines,” or ask the dealer from
whom you purchased the power plant.
The rated power of each engine-generator is limited by the
temperature, altitude and all other ambient conditions specified
by the engine manufacturer. Engine power will decrease 3-1/2%
for each 1000 ft. above sea level, and will decrease an additional
1% for each 10 degrees Fahrenheit above 60 degrees Fahren-
heit.
Battery Overvoltage
15 VDC
N/A
Low Battery Voltage
10 VDC
N/A
Weak Battery Voltage
7.5 VDC
N/A
Coolant Temperature Sender Failure
Enabled
Oil Pressure Sender Failure
Enabled
Magnetic Pickup Failure
Enabled
During normal operation the DGC will continuously display the
engine oil pressure, coolant temperature and the battery voltage
reading. By pressing the "Phase Toggle" push-button you can
toggle through the different phases checking the generator output
and amperage reading on each phase.
The DGC has three operational push-buttons. You can tell which
position has been activated by the LEDs positioned just under the
push-buttons:
RUN - Will start the unit locally at the engine generator set and
allow you to perform any necessary checks prior to connecting
your loads.
STOP - Will disable the engine-generator set making it safe to
perform routine maintenance.
AUTO - Will allow the unit to be started from a remote location.
This is the position you will use in conjunction with an Automatic
Transfer Switch. This is also the push-button you depress to
leave the unit in "Standby Mode"
There are three additional LED lights on the panel:
NOT IN AUTO - Indicates that the engine generator set has not
been left in the "AUTO" mode and will not start if there is a line
power failure.
ALARM - This red LED lights continuously during alarm condi-
tions and flashes during pre-alarm conditions.
SUPPLYING LOAD - Indicates the generator is supplying more
than 2% of rated current to whatever is connected to it. In such
cases you should not shut the unit down for routine maintenance
or you will disrupt your loads.
There are seven additional push-buttons on this control panel,
only two of them should routinely be used. The "LAMP TEST"
push-button tests the DCG indicator by exercising all LCD
segments and lighting all LEDs. The "ALARM SILENCE" push-
button would reset an audio alarm if the control is equipped with
one. These controllers are not.
The last five push-buttons, "Raise/Scroll". "Lower/Scroll",
"Select/Enter", "Previous", and Display Toggle, are not used
during normal operation. These push-buttons allow the service
personnel to gain access to some of the programming and
change it in the field. PLEASE NOTE OPENING UP THE
PROGRAMMING VIA THESE PUSH-BUTTONS AND ENTER-
ING AN IMPROPER CODE CAN DISABLE YOUR GENERA-
TOR. If you should push one of these push-buttons by mistake
and get the programming opened up, back out of it by depressing
the display toggle. If it should become necessary to change the
baseline setting programmed into this controller please contact
the WINCO Inc. Service Department at 507-357-6831 for
assistance.
