EngineSpecications
PSS8B PSS12H PSS15B PSS20B
Make B&S Honda B&S B&S
Model Vanguard GX690 Vanguard Vanguard
Displacement 570 cc 688 cc 895 cc 993 cc
Cylinders V-Twin
Cylinder Sleeves Cast Iron
Lubrication Forced with Spin-On Filter
Ignition Electronic
Engine Speed 3600
Governor Mechanical
Regulation +/-1.8 hz Steady State
Fuel LP/NG Field Selectable
Exhaust Critical Grade, Glass-pack
Low Oil Shutdown
High Oil Temp. Shutdown
EPA/CARB Yes Yes Yes Yes
Fuel Requirements
Load PSS8B PSS12H PSS15B PSS20B
Natural
Gas
100% 132 195 260 328
50% 95 140 170 239
LP Gas
100% 1.6 2.2 2.96 3.61
50% 1.0 1.4 1.75 2.60
Flow Rate NG (BTU/HR)
132,000 190,000 260,000 328,000
Flow Rate LP (BTU/HR)
158,760 194,000 272,160 329,000
Notes: (1) Natural gas measured in ft
3
/hr. (2) LP gas measured in gal/hr. (3) Requires
7-11” water column (4-6 oz) fuel pressure. (4) Flow rates are at full load. (5) 3/4” Fuel
Inlet.
ElectricalSpecications
Output
120/240V Single Phase
Design Rotating Field
Poles 2
Voltage Regulation +/-5%
Insulation Class H
Temperature Rise 125
0
/40
0
C
Windings 100% Copper
Bearings Weatherproof Maintenance Free
Harmonic Distortion <5%
Rotor 2/3 Pitch
Load Acceptance 100% Rating/Single Step
DC System Voltage 12V
DC Alternator Engine Mounted
Battery Rack/Cable Included
Battery Charger Included (4 Stage)
Start Battery Group 26, 500 CCA (Not included)
Fuel Tank/Line Sizing (Gallon)
PSS8B PSS12H PSS15B PSS20B
60
o
F (16
o
C) 150 150 150 150
32
o
F (0
o
C) 150 250 250 250
0
o
F (-18
o
C) 250 500 500 500
-20
o
F (-29
o
C) 500 1000 1000 1000
Feet Pipe Size
(Add 3’ for each elbow. Do not use ‘street ells.)
Up to 25’ 3/4” Pipe
25’-100’ 1” Pipe
Over 100’ Use a 2 regulator system.
Winco Air-Cooled Packaged Standby Systems are available with both 4-wire and 2-wire control modules. The
choiceofcontrollersgiveyoutheexibilitytoeffectivelymeetanyapplication’srequirementswithoutcompromise.
4-Wire Start Module
The Winco 4-wire control module is designed to work with the ASCO 165 4-wire transfer
switches. All starting controls including start contacts, fuel solenoid contacts and time delays
are built into the transfer switch. If a fault occurs, the transfer switch will shut down the system
and display diagnostic code. This system is ideal for most residential standby installations.
2-Wire Start Module
The Winco 2-wire control module starts the generator when a dry contact closes,
making it compatible with most transfer switches and other starting devices. All
generator start and shutdown functions are controlled by the 2-wire control module.
The module provides detailed operating and diagnostic information through its digital
display. This module is recommended for applications with compatible transfer
switches, solar, pump and independent operation.
Controller Features
4-Wire 2-Wire
Fail To Start X X
Fail To Stop - X
Low Oil Pressure X(1) X
High Engine Oil Temp. X(1) X
Under Frequency/Speed X(1) X
Over Frequency/Speed X(1) X
Low Voltage X(1) X
High Voltage X(1) X
Battery Over/Under Voltage - X
Digital Display - X
Notes: (1) ATS displays a generic fault code.
ASCO 165 ATS (2 or 4 Wire)•
ASCO 185 ATS (2 Wire Only)•
Oil Heater Kit (With Thermostat)•
Battery Heater Kit •
Vapor Strainer Kit (3/4”)•
Accessories
9
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