
Page 1 of 4
PM4025
Gaseous Fueled Stationary Standby
Standard Features
Standard Features
Standard FeaturesStandard Features
Ford Industrial Engine
• Ford Model LRG425 4-Cylinder In-Line Engine
25kW
60Hz
Model: PM4025 Standby Rating* Full Load Starting Insulation Rating
Voltage Phase Hertz kW kVA Amps SkVA
120/240 1 60 25 25 104 43.5 H 110
120/208 3 60 25 31.5 86.7 53 H 100
120/240 3 60 25 31.5 75.2 66 H 90
277/480 3 60 25 31.5 37.5 66 H 45
• Electronic, Distributorless Ignition Control Module
• Electronic Governing Provides 0.5% Frequency Control
• Engine Oil Drain Lines Provided
• Easily Accessible For Engine Service
Alternator
• 2/3 Pitch Winding For Reduced Harmonics
• Low Waveform Distortion
• Excellent Motor Starting
• Tropicallized Windings
Weather Enclosure
• 16 Gauge Steel Enclosure With Sound Material Installed
• Powder Painted Almond Color Finish
• Lockable (keyed alike) Doors With Sound Baffles
• Vertical Air Discharge For Optimal Sound Control
• Critical Grade Muffler Integral To Enclosure
• No Exterior Fasteners
Fuel System
• Operates On Liquefied Petroleum Gas Or Natural Gas
• Simple Field Conversion Between Fuels
• Integrated Governor- Throttle Body Assembly
Cooling System
• Rated To Operate In 104°F Ambient Temperatures
• Factory Filled With Environmentally Safe Propylene Glycol
• 500-Watt Thermostatically Controlled Circulation Heater Aids Starting
Main Line Circuit Breaker
• UL 489 Listed Breaker Is Included As Standard
• Conveniently Mounted Behind Lockable Door With Window
Digital Remote Start/Stop Controller
• Robust Control Package
• Highly Accurate Monitoring, Display & Protection
• Field Programmable To Custom Tailor For Users Needs
• Equipped With RS485 Output, Compatible With RDP110 Remote
Annunciator Panel
• Programable I/O’s- 2 Relay Output/3 Auxiliary Input Contacts
3-Year/1500 Hour Warranty
• Best Standard Warranty In Its’ Class
Propane Motor MLCB
Listed To The UL2200 Standard
(1)
Class Amps
(1) Rated @ 30% Voltage Dip
(2) Consult Factory for conformance to UL2200 on special models prior to ordering.
* Standby Power Rating Definition: All models rated on lp gas, derate 10% when using natural gas. Capable of supplying emergency power in lieu o f utility power for the duration of the interruption.
There is no overload capacity available or specified for this rating. Single-phase units are rated at unity power factor. Three-phase units are rated at .8 power factor. Single-phase systems are dedicated single
phase (4-wire). Three-phase systems are 12-lead broad range reconnectable. When reconnecting a 12-lead alternator to single-phase, derate to 2/3 output. OTHER DERATION FACTORS: Engine power is
available to 77°F, barometric pressure of 29.5in. Hg & relative humidity of 60%. Altitude: Derate system performance 4% per 1000 feet above 500 feet. Temperature: Derate system performance 1% per 10°F
temperature increase above 77°F. Humidity: Derate system performance 1.5% per 10% relative humidity above 60%. For elevations above 8000 feet, consult factory.
All Specifications Subject to Change Without Notice ©2002 Coleman Powermate, Inc.
Coleman® is a registered trademark of the Coleman Company, Inc. used under license.

Page 2 of 4
PM4025
Gaseous Fueled Stationary Standby
25kW
60Hz
Engine Data
General
Manufacturer Ford
Model LRG-425
Type 4-Cycle, In-line Configuration
Horsepower 45 Maximum (LP)@ 1800rpm
Cylinder Block Material Cast Iron
Cylinders 4
Aspiration Natural
Air Cleaner Heavy Duty Replaceable Dry Element
Displacement 2.5 Liters
Compression Ratio 9.37:1
Bore 96mm
Stroke 86.3mm
RPM 1800
Engine Governing ± 0.5% - Electronic
Fuel System
Fuel System Woodward Fuel Mixer, Secondary Regulator, 12vdc Positive Locking Shut-off Solenoid
Fuel Type Liquefied Petroleum Gas(Vapor) Or Natural Gas
Injection Method Carburetor Induction
Lubrication System
Lube Oil System Centrifugal Pump, Spin-on-Full Flow Filter
Lube Oil Capacity 4.5 Quarts W/Filter
Cooling System
Cooling System 105°F Ambient Radiator Equipped
Ambient Operating Temperature Range -20°F To 105°F
Cooling System Capacity 2.8 Gallons
Coolant Flow Rate 17.4 GPM
Coolant Heater 120v, 500 Watt Thermostatically Controlled Circulation Type
Electrical
Starting Voltage 12v negative ground
Battery Size Required BCI Group 26, Battery Rack & 2/0 Cables Included
Cranking Current 550cca @ 0°F
Battery Charging Alternator 90 amps
Battery Charger (120v AC) Bulk - 6A, 12vdc
Absorption - 5.5A, Taper To 1.5A Between 13-14.4vdc
Float – 0.1 To 0.3A, 13.3vdc Κ 0.3vdc
Engine Emission Data
Permits:
California Air Resource Board Consult Factory
South Coast Air Quality Management
District
Emissions Data* Tested To ISO 8178 D2 Cycle:
Hydrocarbons Consult Factory
Nitric Oxide Consult Factory
Carbon Monoxide Consult Factory
Particulate Matter Consult Factory
*Emission levels may rise above published limits due to improper maintenance or altered air intake/airflow.
All Specifications Subject to Change Without Notice ©2002 Coleman Powermate, Inc.
Consult Factory
Coleman® is a registered trademark of the Coleman Company, Inc. used under license.

Page 3 of 4
PM4025
Gaseous Fueled Stationary Standby
25kW
60Hz
Fuel System
Fuel Type Liquefied Petroleum Gas Vapor or
Fuel Supply Inlet 1/2” NPT
Fuel Supply Pressure 7-11 (In/H
Natural Gas (LP Liquid Optional)
O)
2
4-6 (Oz/In
2
)
Fuel Consumption
Fuel Consumption @ % Load LP Gas (Cubic Feet/Hour) Natural Gas (Cubic Feet/Hour)
25% 34 85
50% 67 169
75% 101 254
100% 135 304
Engine Generator Application/Installation Data
Radiator Airflow 4200 CFM
Alternator Airflow 250 CFM
Combustion Airflow 100 CFM
Total Airflow 4550 CFM
Heat Rejected To Coolant 70000 BTU/HR
Heat Rejected To Exhaust 195000 BTU/HR
Maximum Exhaust Flow 206 CFM
Maximum Exhaust Backpressure 1.1 PSI
Exhaust Temperature 1200 °F
Sound Data
66
66 dB(A) Average @ 23’ (7m) @ Full Load
dB(A) Average @ 23’ (7m) @ Full Load
66 66
dB(A) Average @ 23’ (7m) @ Full LoaddB(A) Average @ 23’ (7m) @ Full Load
Position 50% Load 100% Load
A
B
C
D
10 Feet (3m)23 Feet (7m)
Average 72 74
Position 50% Load 100% Load
A
B
C
D
Average 65 66
All Specifications Subject to Change Without Notice
74.5 77
69 70.5
73 74
71 72.5
66 67
64.5 65.5
65.5 67
65 66
Coleman® is a registered trademark of the Coleman Company, Inc. used under license.
©2002 Coleman Powermate, Inc.

Page 4 of 4
PM4025
Gaseous Fueled Stationary Standby
25kW
60Hz
Alternator Data
Type Brushless Revolving Field, Drip Proof Construction
# Poles 4
Coupling Method Direct, Flex Disc
Insulation Class H, UL 1446 Recognized
Voltage Regulation
Total Harmonic Distortion <3.5%
Waveform Deviation Factor <5%
W/Tropicallized Windings
Externally Regulated, Solid State AVR ± 1.5%
Circuit Breaker Data
Type Molded Case
Withstand Rating 10kA AC @ 240v, 18kA @ 480v
Agency Listing UL 489 Listed
Control Panel Functions
• Automatic Remote Start (2-wire) • Generator Voltage Metering • Generator Frequency Metering
• Generator Current Metering • Engine Coolant Temperature Metering • Engine Coolant Temperature Protection
• Engine Oil Pressure Monitoring • Engine Oil Pressure Protection • Overspeed Protection
• Overcrank Protection • Emergency Stop Input • Engine Cooldown
• Watt Metering • VA Metering • Engine RPM Metering
• Power Factor Metering • Watt-hour Metering • Engine Run Time Metering
• Battery Voltage Metering • Battery Condition Monitoring • Maintenance Interval Timer
• On-Off-Auto Selector Switch • Low Coolant Level Detection* • Battery Charger Failure Monitoring*
* Generator Set Must Be Equipped With Appropriate Hardware
Options
LP Liquid Withdrawal System
Remote Annunciation Panel – RDP110
Digital (CP1000) Panel Upgrade
Allows For:
Additional I/O Contacts
Modem Capability
Dimensions & Weight
Weight
1400 lbs.
All Specifications Subject to Change Without Notice
101-2931-0602
Coleman® is a registered trademark of the Coleman Company, Inc. used under license.
©2002 Coleman Powermate, Inc.