Generac Power Systems Mobile Power MMG25FHI User manual

Manufactured by Magnum Power Products LLC., a wholly owned subsidiary of Generac Power Systems
Phone: [phone] . Fax: [phone]
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Mobile Generator – MMG25FHI Specifications
ENGINE
Isuzu®4LE1NYGV-03 - naturally aspirated, diesel engine
oPrime - 32 hp @ 1800 rpm
oStandby - 35 hp @ 1800 rpm
o4 cylinder
o2.2 L displacement
oTier IV Interim approved
Steel, single wall fuel tank
o106 gal. capacity
o45.4 hr. run time – full load
oFuel tank built into skid of generator set
Fuel consumption at prime:
o100% - 1.8 gph (6.8 Lph)
o75% - 1.4 gph (5.3 Lph)
o50% - 0.9 gph (3.4 Lph)
Cooling system capable of operating at 120°F ambient
Low coolant shutdown
Radiator and oil drains plumbed to exterior
Rubber vibration dampers isolate engine/generator from frame
Disposable air filter - paper element
Air filter restriction indicator mounted on control panel
60 Hz engine/generator
Droop governed
GENERATOR
Marathon Electric®
oBrushless
o4 pole
oClass H insulation
Voltage regulation +/- 1% with Marathon SE350 Voltage Regulator
SYSTEM OUTPUT
3 position selector switch
oSingle phase – 120 / 240V Zig Zag
oThree phase – 120 / 208V Low Wye
oThree phase – 277 / 480V High Wye
16 kW / 16 kVA – standby, single phase
15 kW / 15 kVA – prime, single phase
20 kW / 25 kVA – standby, three phase
18 kW / 23 kVA – prime, three phase
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MMG25FHI Generac Specifications Continued:
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SYSTEM CONTROLS
Microprocessor-based controller
oBacklit, 128x64 pixel resolution display
o-40°F to 185°F operating temperature range
oThermostatically controlled LCD heater
oSix LED indicators w/ lamp test
Alarm / Fault (Red)
Ready / Manual (Red)
Running (Green)
Warning (Yellow)
Ready / Auto (Green)
Supplying Load (Green)
Push buttons for easy operation
oManual or Auto Start
oEngine Start or Stop
oAlarm Cancel & Fault Reset
oScrolling Arrows for Diagnostic Information
System kW output display
Line output & frequency display
Engine diagnostic display
Oil pressure
Engine temperature
Fuel level
Battery
System hours
Running hours
kW hours
Time to service
oAlarm list – warnings / shutdowns are date & time stamped
Fuel level: warning – 15%; shutdown – 5%
Overspeed protection: shutdown – 115%
Oil pressure: warning – 25 psi; shutdown – 20 psi
Coolant temperature: warning – 220°F; shutdown – 230°F
Battery voltage: over – 15VDC; under – 11VDC
Generator over voltage: warning – 110%; shutdown – 111%
Generator under voltage: warning – 87%; shutdown – 86%
Generator over frequency: warning – 105%; shutdown – 110%
Generator under frequency: warning – 95%; shutdown – 90%
Over current shutdown
ELECTRICAL CONTROLS
Remote start / stop contacts located next to lug box
Lockable control box door with diagnostics window
Lockable lug box with safety switch
oTrips main breaker when lug door is opened
oDisables voltage regulator

MMG25FHI Generac Specifications Continued:
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Cable entry guides to the lug box
oRestricts access of foreign objects
Output ground connection lug inside lug box
90A main breaker with shunt trip
Convenience receptacles with individual breakers (restricted use in high wye mode)
o(2) 120V 20 Amp GFCI duplex outlets (Nema 5-20R type)
o(2) 125 / 250V 50 Amp, 3 pole, 4 wire twistlock (Non-Nema 6369)
Panel mounted rheostat for voltage adjustment - +/- 10%
720 CCA wet cell battery
ENCLOSURE
Generac Mobile Power decals
“Flip-Hood” Patented design - aluminum, sound attenuated enclosure
oEasy access for daily maintenance
oCentralized location for all electrical connections/wiring
oUV & fade resistant, high temperature cured, white polyester powder paint
oInsulated and baffled
o68 dB(A) at 23 feet – prime power
Fully lockable enclosure including doors and fuel fill
Stainless steel hinges on doors
Emergency stop switch located on outside of enclosure
Central lifting point
Multi-lingual operating/safety decals
Document holder with operating manual including AC/DC wiring diagrams
TRAILER
“Flip-Tongue” design
DOT approved tail, side, brake, and directional lights
oRecessed rear lights
Transportation tie downs
Safety chains with spring loaded safety hooks
2” ball hitch
3500 lb. axle
3000 lb. tongue jack with footplate
P205/75R15 tubeless tires – 6 ply
WEIGHTS & DIMENSIONS
Skid mounted
Dry weight: 2048 lbs (1038 kg)
Operating weight: 2517 lbs (1222 kg)
95 x 35 x 52 in
(2.41 x 0.89 x 1.32 m)

MMG25FHI Generac Specifications Continued:
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Trailer mounted
Dry weight: 2289 lbs
(1147 kg)
Operating weight: 2758 lbs (1331 kg)
150 x 57 x 67 in
(3.81 x 1.45 x 1.70 m)
WARRANTY
Engine and generator covered under OEM warranty – consult factory for details.
CERTIFICATIONS
CSA certified
MMG25FHI Options
ENGINE OPTIONS
In-line engine block heater (Kim Hotstart)
Fuel transfer pump
ELECTRICAL CONTROLS OPTIONS
720 CCA gel cell battery
Battery disconnect
Battery charger – 2A trickle
GENERATOR OPTIONS
PMG Generator - critical grade power quality
Super Start Generator - motor starting applications
VOLTAGE OUTPUT OPTIONS
4 position phase switch
Single phase – 120 / 240V Zig Zag
Three phase – 120 / 208V Low Wye
Three phase – 277 / 480V High Wye
Three phase – 120 / 240V Delta
Dedicated voltage configurations
Buck Transformer kit – Provides 120V at GFCI outlets when in 277/480V
Cam locks
SYSTEM CONTROLS OPTIONS
Analog gauges
Auxiliary strobe/audible indication for soft & hard alarm conditions

MMG25FHI Generac Specifications Continued:
Manufactured by Magnum Power Products LLC, a wholly owned subsidiary of Generac Power Systems Inc
Phone: [phone]. Fax: [phone]
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COOLANT OPTIONS
60/40 Coolant - cold weather applications
ENCLOSURE OPTIONS
Fire extinguisher
Interior cabinet light
Control panel light
FUEL TANK OPTIONS
36 hr. double wall fuel tank
120% Containment
TRAILER OPTIONS
Single axle trailer w/ surge brakes
Single axle trailer w/ electric brakes
Tandem axle trailer w/ surge brakes
Tandem axle trailer w/ electric brakes
6 pin or 7 spade electrical connectors
Spare tire/wheel kit
HITCH OPTIONS
3” lunette ring
2 5/16” ball
Adjustable height options:
2” ball
2 5/16” ball