Products

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Marine Diesel Generators: Navigator Yanmar - 20NY

Standby Rating 60 Hz : 20kW (20kVA) Prime Rating 60 Hz : 18kW (18kVA) Standard Features • Analog 200 Remote Control Panel • 10' Extension Harness • Aqua Shield™ Patented Ex. Manifold Cover • Marine Grade Epoxy Paint • Oil Drain Kit (Valve Type w/ Safety Lock) • Washable Long-Life Air Filter • Buddy Box (Spare Parts Kit) • ABS Molded Belt Guard • Coolant Overflow Bottle • Rubber Isolation Mounts • Stainless Steel Drip Pan • Single Lifting Point • Hand Built In The USA • Prototype And Production Tested • Meets or Exceeds Tier 2 Nonroad Emissions • 5 Year 5,000 Hour Warranty

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Generator Specifications:

Manufacturer Type Exciter Type Leads: Quantity Voltage Regulator Insulation Material Temperature Rise Bearing Type Coupling Voltage Regulation Phase Type Power Factor Power Rating At 60hz Power Rating At 50hz Mainline Breaker (Amps) *Optional

Marathon 4 Pole Brushless 4 AVR H Type 105°C Sealed Direct Bolt-Up 1% 1 1.0 20 kW (20kVA) 16.5 kW (16.5kVA) 60

Generator Ratings:

Amps @ 120 Volts 60hz Amps @ 240 Volts 60hz Amps @ 120 Volts 50hz Amps @ 240 Volts 50hz

166.6 83.3 132 68

Engine Specifications:

Manufacturer Engine: Model Type Cylinder Arrangment Displacment Bore Stroke Compression Ratio Rated RPM 60 hz Rated RPM 50 hz Max Power At Rated RPM (60hz) Max Power At Rated RPM (50hz) Cylinder Head Material Block Material Governor Type Frequency Regulation Air Filter Type

Yanmar 4TNV88 4 In Line 4 Cycle 133.58 cu.in. (2189 cc) 3.46 in. (87.8mm) 3.54 in. (89.9mm) 19.1:1 1800 1500 29 bhp 24.2 bhp Cast Iron Cast Iron Mechanical 3-5% Replaceable Element

Engine Electrical System:

Ignition System Starter System Voltage (DC) Battery Recommendation (CCA) Battery Voltage (DC) Starter kW

Electric 12V 500 12V 1.4

Fuel System:

Fuel Shutoff Solenoid Fuel Pump Priming Fuel Pump Fuel Type Fuel Pump Lift Fuel Line Supply Fuel Line Return

Electric Electric Mechanical #2 Diesel 3.28 ft. (1m) 5/16 in. (7.9mm) 5/16 in. (7.9mm)

Fuel Consumption:

100% Load At 60hz 75% Load At 60 hz 50% Load At 60 hz	1.67 gph. (6.3 Lph) 1.30 gph. (4.9 Lph) .92 gph. (3.5 Lph)
100% Load At 50hz 75% Load At 50 hz 50% Load At 50 hz	1.39 gph. (5.3 Lph) 1.08 gph. (3.8 Lph) .77 gph. (2.9 Lph)

Cooling System:

Manifold Engine Coolant Capacity Heat Exchanger Type Raw Water Pump Inlet Raw Water Pump Type Raw Water Pump Flow Rate Engine Water Pump Type Fan Diameter* Fan & Alternator (hp)* Fan Type Fan Rotation * Used only on sound enclosed models

Water Jacketed 2.85 qts. (2.69 L) 3 in. (76.2mm) 2 Pass Cupronickel 5/8 in. (15.87mm) Belt Driven 8 gpm. (30.28 Lph) Centrifugal 9.5 in. (241.3mm) 1 5 Blade Pusher Clockwise

Lubrication System:

Type Engine Oil Capacity With Filter Oil Filter Type

Full Pressure 7.82 qts. (7.4 L) Spin-On

Exhaust System:

Exhaust Type Max Allowable Back Pressure Exhaust Outlet Size

Water Cooled 4.52 in. hg (11.4 cm hg) 2.5 in. (6.35 cm)

Air Requirments:

Engine Combustion Air Intake Requirements Generator End Cooling Requirements Sound Shield Air Space Requiremants

62.6 cfm. (19.0 cmm) 220 cfm. (67.0 cmm) 4 in. (10.1cm)

Sound Table:

dB(A) Without Sound Shield Load 3' 10' 21' 100% 86 83 80 75% 85 83 79 50% 85 82 77 dB(A) With Sound Shield Load 3' 10' 21' 100% 72 70 66 75% 73 69 64 50% 72 68 64 Weights And Dimensions: Open Unit: Length - in(cm) Width - in(cm) Height - in(cm) Dry Weight - lbs.(kg) Wet Weight - lbs.(kg) 42.5 (108.0) 19 (48.3) 26.5 (67.3) 725 (328.9) 735 (333.4) Enclosed Unit: Length - in(cm) Width - in(cm) Height - in(cm) Dry Weight - lbs.(kg) Wet Weight - lbs.(kg) 46 (116.8) 23 (58.4) 27.5 (69.9) 780 (353.8) 790 (358.3)

Please Note: While every attempt is made to ensure the information on this site is accurate, this data is provided for information purposes only and is subject to change without notice.