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FORWARD
You are now the proud owner of a Power Technology Generator powered by a Kubota engine.
This engine is a product of Kubota’s quality engineering and manufacturing. The engine is made
with fine materials and manufactured under the strictest quality control standards and will assure you long
satisfactory service. To obtain the best use of your engine, please read this manual carefully. It will help you
become familiar with the operation of the engine and contains many helpful hints regarding engine
maintenance. Continuing improvements and advancements in product design may have caused changes to
your engine, which are not included in this manual.
Please contact Power Technology’s Customer Service Department for latest information on your Kubota
engine or for the number of your local Kubota dealer.
TO OUR CUSTOMERS
Thank you for your purchase of a Power Technology Generator. The information contained in this
manual applies to PTRV-17.5K & KT, PTRV-20K & KT generators. In the event you experience a problem
with your generator please contact the sales dealer, one of our authorized service centers or Power
Technology’s Customer Service Department directly at 1-800-760-0027 from 8:00 a.m. to 5:00 p.m. EST.
Please have the generator model and serial numbers available when you call. This will help expedite service
and parts to you. Parts may be obtained directly through Power Technology and shipped the same day if
ordered by 3:00 p.m. EST. If required, a Major Service Manual may be ordered through Power
Technology’s Customer Service Department.
Generator Model Number____________________________________________
Generator Serial Number_____________________________________________
POWER TECHNOLOGY SOUTHEAST, INC.
634 STATE RD. 44
LEESBURG, FL. 34748-8103
(352) 365-2777
FAX (352) 787-5545
www.PowerTech-Gen.com
Limited Warranty on Power Tech Generators
Power Technology Southeast, Inc. warrants to you, the original purchaser, that each product of our manufacture is free from defects in materials, and workmanship. That
each generator will deliver its rated output as indicated on The Power Technology Nameplate, if properly installed, serviced, and operated under normal conditions in
accordance with Power Technology’s instructions.
THE WARRANTY COVERAGE TERMS:
2 years from date of purchase, or 3000 hours whichever comes first, or 36 months from the date of manufacture. Parts, and labor, including diagnostic labor, removal, and
reinstallation are covered for the first 12 months from date in service or 1000 hours whichever comes first.
Parts and labor are covered only on the following generator and engine parts for 2 years or 3000 hours whichever comes first. Generator Parts: Main Rotor and Main
Stator. Engine Parts: Cylinder Block, cylinder head, crankshaft, camshaft, cylinder head gears, connecting rods, flywheel and flywheel housing, intake and exhaust manifold
(only if flexible connection is used).
3) Stand-by Units are covered for a period of 1 year from date of installation, or 1000 hours, or 24 months from the date of manufacture whichever comes first.
4) Replacement Parts are warranted: 30 days. (Excluding the following: voltage regulators, fuses, controllers, capacitors, brushes, and switches)
________________________________________________________________________________________________________________________________
WHAT POWER TECHNOLOGY WILL DO:
Power Tech will at our option, repair or replace any part covered by this warranty which becomes defective, malfunctions or otherwise fails to conform to this warranty
under normal use and service during the term of this warranty.
WHAT YOU MUST DO TO OBTAIN WARRANTY SERVICE:
In order to obtain warranty repairs you must deliver the product, together with proof of purchase to an authorized Power Tech service facility. In the case of repairs
pertaining to the engine only, you must use an authorized dealer or distributor of that make of engine, to be covered under their warranty. Engines used in the manufacture
of Power Tech products are warranted solely by the engine manufacturer.
PRIOR APPROVAL IS REQUIRED FOR ANY WARRANTY SERVICE
Failure to obtain authorization prior to the repair being performed will result in the claim being denied.
All claims must be submitted within 30 days of the repair. Along with the following: a copy of the original repair order, Power Tech authorization number, Power Tech
serial number, and operation hours shown on the genset mounted hour meter.
THIS WARRANTY DOES NOT COVER THE FOLLOWING:
A. Normal wear items, including but not limited to: turbo-chargers, fuel injector (s), starter, alternator, and electronic components, as well as normal engine and/or generator
wear. A1. Travel time and fuel charges to and from the repair facility or travel time and fuel charges for mobile service. (Except stationary units with a maximum of 2-hours
travel time.) B. Defects, malfunctions or failure resulting from accidents, abuse, misuse, improper servicing, improper installation, improper storage, and lack of
performance of required maintenance service. C. Products which have been subjected to alteration, modification, neglect or unauthorized repairs. D. Troubleshooting,
routine service, tune-ups, replacement of filters, belts, coolant, lubricants, hoses, clamps, exhaust system components, fuel system components, gaskets and/or seals. E.
Electrical items damaged by welding or jump-starting. F. Damage caused by water ingestion or electrolysis. G. Damage caused by ingestion of substances other than clean
filtered air, fuel, or intake water. H. Damage caused by faulty repairs performed by a repair facility not authorized in writing by Power Tech. I. Damage caused by operation
with improper fuel or at speeds, loads, conditions, modifications, or installation contrary to published specifications or recommendations. J. Original installation charges and
startup costs. K. Removal and re-installation charges of more than 1-hour labor for outside units, 2-hours for compartment mounted units, and 3-hours for below deck
marine units. Customer is responsible for additional labor/charges due to difficult access, removal or installation. L. Starting batteries and labor or charges related to battery
service. M. Loss of revenue or the rental of equipment due to down time. N. Generator repairs made within the warranty period other than by an authorized Power Tech
service dealer without prior written approval from Power Tech warranty department. O. Damage caused by negligent maintenance such as but not limited to: Failure to
provide the specified type and quantity of lubricating oil, cooling air flow, and proper coolant mixture and level. Failure to provide adequate air intake/or maintenance of the
air intake system. Failure to provide scheduled maintenance as prescribed in supplied manuals. P. Engine fluids such as fuel, oil or coolant/antifreeze. Q. Shop supplies such
as adhesives, cleaning agents, rags, paint, or other miscellaneous supplies. R. Use of other than factory supplied or approved repair parts or procedures. Replacement of a
failed Power Tech component with a non-Power Tech component voids the Power Tech warranty on that component and any and all failures related to that component. S.
Fuel injection pumps repaired by anyone other than the factory authorized dealer or distributor of that engine. T. Expenses incurred investigating performance complaints
unless defective Power Tech materials or workmanship are discovered. U. Generator sets used in rental applications. V. Cleaning, service, or repair of generator sets the
have not been kept free of dirt, debris, or other items that prevent the unit from being able to operate properly. W. Any generator set not application approved. X. Loss of
excitation due to prolonged storage. Y. Any damage attributed to low battery monitoring or automatic generator starting systems. Z. Optional accessories are warranted
solely by the manufacturer of that item including but not limited to the following item: Block heaters, oil pan heaters, electric cooling fans, air-bag isolators, compartment
heaters, fuel tanks, trailers, battery chargers, battery monitors.
To obtain warranty service:
For your nearest Power Tech authorized service center, on the World Wide Web at: http://www.powertech-gen.com/parts_service.php
Call 1-352-365-2777 or write to Power Tech Warranty Department, P.O. Box 490133 Leesburg, FL 34749 USA.
Power Tech must be notified in writing within five (5) business days of any product failure.
General Conditions:
This Warranty is the sole property of the original owner /user.
A transfer of ownership shall terminate this Warranty.
This Warranty is only valid within the contiguous United States and Canada.
Warranty coverage is available outside the U.S. and Canada; please speak to a factory representative for those details.
This Warranty does not cover any products or parts not purchased from Power Technology.
Power Technology reserves the right to make design improvements and model changes without any obligation to change units or parts previously manufactured.
Warranty registration card must be completed and mailed to Power Tech at the above address to validate the Warranty.
This is the only express warranty on Power Tech products
No person, agent, or dealer is authorized to give any Warranties on behalf of Power Technology Southeast, Inc., and not to assume for Power Technology Southeast,
Inc. any other liability in connection with any of its products unless made in writing and signed by an officer of Power Technology Southeast, Inc.
LIMITATIONS ON OUR RESPONSIBILITY WITH RESPECT TO PRODUCTS PURCHASED AND USED FOR PERSONAL, FAMILY OR HOUSEHOLD USE:
Our responsibility is to repair or replace defective parts as stated above. We will not be responsible for any other expenses, losses or inconvenience which you may
Sustain as a result of the purchase, use, malfunction or defective condition of our products. ANY IMPLIED WARRANTIES, INCLUDING WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE SHALL BE LIMITED IN DURATION TO THE PERIOD SET FORTH ABOVE.
Some states do not allow limitations on how long an implied Warranty lasts or the exclusion or limitation of incidental or consequential damages, so the above
Limitations or exclusions may not apply to you. This Warranty gives you specific legal rights and you may have other rights which vary from state to state.
This Warranty is in lieu of all other Warranties, expressed or implied and of any other obligations or liability on our part.
Our responsibility for any and all losses and IN NO EVENT WILL WE BE LIABLE FOR LOSS OF USE, LOSS OF PROFITS, INCONVIENCE, COMMERCIAL LOSS
OR OTHER INCIDENTIAL OR CONSEQUENTIAL DAMAGES WHATSOEVER.
Power Technology S.E., Inc.
P.O. Box 490133 Leesburg, FL 34749 USA.
Z code 04/20/2010
TABLE of CONTENTS
SECTION 1: SAFETY
SAFE OPERATION 1-4
SECTION 2: ENGINE
PRE-OPERATION CHECK 1
OPERATING THE ENGINE 2
ENGINE SPECIFICATIONS 3
ENGINE MAINTENANCE SERVICE SCHEDULE
4
ENGINE OIL MAINTENANCE
5
ENGINE COOLANT MAINTENANCE 6
OPERATING HOURS AND SERVICE LOG 7
ENGINE TROUBLESHOOTING GUIDES 8-10
SECTION 3: “GENERATOR END
PRINCIPLES OF OPERATION 1-2
“M” SERIES EXCITER TYPE GENERATOR ASSEMBLY __ 3
GENERATOR END TROUBLESHOOTING GUIDES 4-6
WIRING SCHEMATICS and RESISTANCE CHARTS_____________________ 7-8
SECTION 4: INSTALLATION
SAFETY PRECAUTIONS 1-2
GENERATOR INSTALLATION in RECREATIONAL VEHICLES
3-9
SYSTEMS CONNECTION 10-13
ELECTRICAL CONNECTIONS
14-19
12V DC ENGINE CONTROL WIRING SCHEMATIC
SECTION 5: “POWER CONTROL MODULE”
POWER CONTROL MODULE (PCM) and DISPLAY (PCMD) _____________ 1-3
TROUBLESHOOTING GUIDES ______________________________________ 4-10
12 VOLT DC POWER CONTROL MODULE WIRING SCHEMATIC _______ 11
SECTION 1
“SAFETY”
SAFE OPERATION
1-4
Observe Safety Instructions
Wear Safety Clothing
Check Before Operating the Engine
Keep Area Around the Engine Clean
Safe Handling of Fuel and Lubricants
Exhaust Gases and Fire Prevention
Escaping Fluids
Cautions Against Burns and Battery Explosion
Keep Hands and Body Away From Rotating Parts
Anti-Freeze and Disposal of Fluids
Conducting Safety Checks and Maintenance
This symbol, the industry’s “Safety Alert Symbol”, is used throughout this manual and
on labels attached the machine itself. It warns of the potential for personal injury. It is
essential that you carefully read the instructions and safety regulations before you attempt
to assemble or use this unit.
WARNING: Indicates a potentially hazardous situation, which
may possibly result in serious injury or possible death.
CAUTION: Indicates a potentially hazardous situation, which
may possibly result in minor injury.
IMPORTANT: Indicates that equipment or property damage may result
if instructions are not followed.
NOTE: Indicates helpful information.
SAFE OPERATION
Cautious operation is your best insurance against an accident. Read and understand this section carefully
before operating the engine. All operators, no matter how knowledgeable they may be, should read this
and other related manuals before operating the engine or any equipment attached to it. It is the owner’s
responsibility to instruct all operators in safe operation. Be sure to observe the following for safe
operation.
OBSERVE SAFETY INSTRUCTIONS
Read, understand and follow this “OPERATORS MANUAL”
and “LABELS ON THE ENGINE” before starting and operating
the engine.
Learn how to operate and work safely. Know your equipment
and its limitations. Always keep the engine in good condition.
Before allowing other people to use your engine, explain how
to operate and have them read this manual before operation.
DO NOT modify the engine. UNAUTHORIZED
MODIFICATIONS to the engine may impair the function
and/or safety and affect engine life.
WEAR SAFETY CLOTHING
DO NOT wear loose, torn or bulky clothing around machinery.
Entanglement in rotating parts, controls or projections may cause
personal injury.
Use additional safety items, e.g. hardhat, eye protection,
gloves, etc., as appropriate or required.
DO NOT operate machinery or equipment while under the
influence of alcohol, medication, or other drugs, or
while fatigued.
DO NOT wear radio or music headphones while operating engine.
CHECK BEFORE OPERATING THE ENGINE
If the engine is malfunctioning DO NOT operate until repairs
are made.
Be sure all guards and shields are in place before operating
the engine. Replace any that are damaged or missing.
Check to see that the area around the engine is clear of foreign
objects before starting.
Always keep the engine at least 3 feet (1 meter) away from
buildings or other facilities.
DO NOT allow children or livestock to approach the machine
while in operation.
DO NOT start the engine by shorting across starter terminals.
1
KEEP AREA AROUND THE ENGINE CLEAN
Be sure to stop the engine before cleaning.
Keep the engine clean and free of accumulated dirt, grease and trash.
DO NOT stop the engine without idling; Temperatures around
the engine rises suddenly. Keep the engine idling for about 5
minutes before stopping.
SAFE HANDLING OF FUEL AND LUBRICANTS
Always stop the engine before refueling or lubricating.
DO NOT smoke or allow flames or sparks in your working
area. Fuel is extremely flammable and explosive. Never store
flammable liquids in the engine compartment.
Refuel at a well-ventilated and open place. If fuel or lubricants
spill, clean up immediately and properly dispose of.
DO NOT mix gasoline or alcohol with diesel fuel. The mixture
can cause a fire.
EXHAUST GASES AND FIRE PREVENTION
Engine exhaust fumes can be very harmful if allowed to
accumulate. Be sure to run the engine in a well-ventilated area
where there are no people or livestock near by.
The exhaust gas from the muffler is very hot. To prevent a fire,
do not expose dry grass, oil or any other combustible materials
to exhaust gas. Keep the engine and mufflers clean all the time.
To avoid a fire, be alert for leaks of flammables from hoses and
lines. Be sure to check for leaks from hoses and pipes, such as
fuel and hydraulic by following the maintenance check list.
To avoid a fire, do not short across power cables and wires.
Check to see that all power cables and wires are in good
condition. Keep all power connections clean. Bare wire or
frayed insulation can cause a dangerous electrical shock and
personal injury.
2
CALIFORNIA
Proposition 65 Warning
Diesel Engine Exhaust and some
of it’s constituents are known by the
State of California
to cause
Cancer, Birth Defects and Other
Reproductive harm.
ESCAPING FLUIDS
Relieve all pressure in the air, oil and cooling systems
before any lines, fittings or related items are removed or
disconnected.
Be alert for possible pressure release when disconnecting any device
from a system that is pressurized. DO NOT check for
pressure leaks with your hands. High-pressure oil or fuel can
cause personal injury.
Escaping hydraulic fluid under pressure has sufficient force to
penetrate skin causing serious personal injury.
Fluid escaping from pinholes may be invisible. Use a piece of
cardboard or wood to search for suspected leaks: do not use
hands and body. Use safety goggles or other eye protection
when checking for leaks.
If injured by escaping fluid, see a medical doctor immediately.
This fluid can produce gangrene or severe allergic reaction.
CAUTIONS AGAINST BURNS AND BATTERY EXPLOSION
To avoid burns, be alert for hot components during operation and
just after the engine has been shut off. Such as the muffler, muffler
cover, radiator, piping, engine body, coolants, engine oil, etc.
DO NOT remove the radiator cap while the engine is running or
immediately after stopping. Wait approximately ten minutes for the
radiator to cool before removing the cap.
Be sure the radiator drain valve / petcock and hose clamps are
tighten. Check radiator pressure cap and oil fill cap before operating
the engine.
The battery presents an explosive hazard. When the battery is
being activated, hydrogen and oxygen gases are extremely explosive.
Keep sparks and open flames away from the battery, especially
during charging. DO NOT strike a match near the battery.
DO NOT check a batteries charge by placing a metal object across
the terminals. Use a voltmeter or hydrometer.
DO NOT charge a battery if frozen, it may possibly explode. Frozen
batteries must be warm up to at least 61°F (16°C) before charging.
KEEP HANDS AND BODY AWAY FROM ROTATING PARTS
Keep your hands and body away from all rotating parts, such
as cooling fan, v-belts, pulleys and flywheel. Contact with these
rotating parts can cause serious personal injury.
Be sure to stop the engine before adjusting belt tension or checking
the cooling fan.
DO NOT run the engine without safety guards installed. Be sure the
safety guards are properly aligned and securely fastened before operating
the engine.
3
PRE-OPERATION CHECK
ENGINE BREAK-IN PERIOD
During the engine break-in period, observe the following recommendations:
1. Change the engine oil and oil filter cartridge after the first 50 hours of operation.
(See “ENGINE OIL” in ENGINE MAINTENANCE SERVICE SCHEDULE).
2. In ambient temperature above 32°F (0°C) approximately 3-5 minutes without a load is sufficient
for engine warm up. Allow additional warm up time when temperatures are below 32°F (0°C)
before placing an operating load on the engine.
DAILY CHECK
To prevent future engine problems from occurring, it is important to know and keep track of the engines
condition. Below are items to be Inspected and Checked on a daily basis.
CAUTION:
To avoid personal injury:
Be sure all safety shields and guards are attached to the engine when operating.
To prevent a fire hazard, keep foreign materials, fuel and oil away from the battery, wiring, muffler
and engine. Check and clear them daily. Be aware of the muffler and exhaust gas heat underneath the
engine compartment, this heat may ignite grass or other flammable materials.
Follow all safety precautions as outlined in the “SAFE OPERATION” section.
1. For accurate readings the engine should be on level ground when checking engine fluids.
2. Check fluids before starting the engine. (Cold Engine)
Lubrication System: Check Engine oil level
Check for Engine oil leaks
Cooling System: Check coolant level and condition
Check for coolant leaks
Check for proper installation of the radiator cap
Fuel System: Check for sufficient quantity of fuel
Check for fuel leaks
3. Check engine after starting. (Warm Engine)
Proper Operation: Check for easy engine start
Check for fluid leaks
Check for abnormal engine noises
Check for abnormal exhaust gas
1
OPERATING THE ENGINE
ENGINE STARTING CONTROLS
1) Generator Main Switch must be in the ON position.
2) Hold Start/Stop Switch for 1 second and release.
3) Glow Plugs will preheat for 8 seconds. LED flashes slowly.
4) Preheating will cease during engine cranking cycle. LED continues flashing.
5) Engine begins an 8 seconds crank cycle, After 4 seconds of cranking the PT-ECU-63 will check
for an AC signal from the generator. If an AC signal is verified the engine will start and the LED
will remain ON during the normal run operation. If the AC signal is not verified the PT-ECU-63
will terminate the cranking cycle and LED will flash a fault code.
6) Starter disengages immediately after engine run is verified.
7) PT-ECU-63 deactivates the Low Oil Pressure and High Water Temperature Switches for 6
seconds, this will assure oil pressure build-up time. If oil pressure does not build-up the engine will
immediately shut down and go into a fault mode. Likewise for a high temperature situation.
8) If engine will not start on the first attempt the PT-ECU-63 will initiate the start cycle 2 more times
before going into a fault mode. Glow Plugs will preheat for 8 seconds per attempt. Engine will
crank for 8 seconds per attempt.
9) To shut down the engine under normal operations, hold the Start/Stop Switch for 1 second and
release.
10) If a fault occurs turn Generator Main Switch OFF and then ON to reset PT-ECU-63.
CHECKING ENGINE AFTER STARTING
1) Allow the engine to warm up 3 to 5 minutes before applying a load. In colder climates allow a few
extra minutes longer.
2) Perform a visual inspection of all areas of the engine and generator.
3) Listen for any abnormal noises.
4) Check for any abnormal exhaust gases.
STOPPING THE ENGINE
It is recommended to disconnect or reduce the power load from the generator before shutting down the
engine. Then follow the steps outlined above for normal shut down.
NOTE: The PT-ECU-63 is designed to operate on 12V DC power. In a low battery situation the
PT-ECU-63 may not initiate the normal cranking cycle. To start the generator you can press and
hold the Start/Stop Switch for approximately 10 seconds or until the engine starts. Once the
engine starts the PT-ECU-63 will resume normal operations. If this situation re-occurs, charge or
replace the battery.
IMPORTANT: Damage to the Starter Motor, Starter Solenoid, Run Solenoid or any generator component
due to excessive or prolonged starting attempts attributed to an external Low Battery Control Monitoring
or Auto-Start System will not be covered by the Power Technology Southeast, Inc. Limited Warranty.
2
SECTION 4
“INSTALLATION”
SAFETY PRECAUTIONS 1-2
Hot Piping
Dangerous Fuels
Explosive Battery Gases
Electrocution
Moving Parts
High Voltage
Explosion
Hot Coolant
Lethal Exhaust Gas
Excessive Noise
Electrical Shock
Backfire
Flash Fire
Fire Hazard
Marine Application
Unit Starts Without Notice
Loose Components
GENERATOR INSTALLATION in RECREATIONAL VEHICLES 3-9
Introduction
Marine Application
General Information
Specification Charts
Fuel Consumption in Gallons per Hour
Installation Factors
Generator Compartment Size
Compartment Frame
Air Requirements
Air Requirements Cont’d
Generator Enclosures
Dimensions and Enclosure Layout
Installation Dimensions
SYSTEMS CONNECTION 10-13
Remote Radiator Cooling System
Fuel System
Exhaust System
Fuel Line Diagram
ELECTRICAL CONNECTIONS 14-19
Electrical Wiring
AC Load Lead Connections
Motor Loads
Kilowatt De-Rating
Electrical Loads
Appliance Loads
Extension Cords
GAC Engine Governing System
BASLER AVC 63-4
ECU-63 Engine Control Module
WIRING SCHEMATIC
12V DC Engine Control 550 Series
7) EXPLOSION: Never connect the negative (-) battery cable to the positive (+) connection terminal of the
starter solenoid, or test the battery by shorting terminals together. This could ignite fuel
vapors or cause the battery to explode. To disconnect the battery remove the negative
battery cable first and reconnect it last. Do not modify the fuel tank or propulsion engine
fuel system. Your vehicle must be equipped with a fuel pick-up arrangement as described
in the Fuel System section of this manual. Fuel tank and installation must conform to
applicable regulations.
8) HOT COOLANT: Allow engine to cool and release pressure from the cooling system before opening the
radiator pressure cap. To release the pressure, cover the radiator cap with a thick cloth then
turn it slowly counterclockwise to the first stop. After the pressure is released and the
engine has cooled, remove the cap.
9) LETHAL EXHAUST GAS: When installing an exhaust system position the tail pipe end so that the
discharged gases may not be drawn into the vehicle interior through windows, doors, air
conditioners, etc. The engine powering your generator set discharges deadly carbon
monoxide as part of the exhaust gas when running. It is essential that the exhaust system be
leak proof and routinely inspected.
10) EXCESSIVE NOISE: Never operate the generator set without an adequate muffler or with a faulty
exhaust system. Exposure to excessive noise can lead to a hearing impairment.
11) ELECTRICAL SHOCK: A battery can cause electrical burns and shocks. Use reasonable care when
working near the battery to avoid electrical connections by contacting the battery terminals
with tools. Remove wristwatch, rings and all jewelry when working on the generator set.
12) BACKFIRE: A sudden backfire can cause serious burns. Do not operate your generator set without its air
cleaner / flame arrestor in place.
13) FLASH FIRE: A sudden flash fire can cause serious burns. To avoid the possibility of a flash fire do not
smoke or permit a flame or spark to occur near the carburetor, fuel lines, fuel filter, fuel
pump or other potential source of spilled fuel or vapors.
14) FIRE HAZARD: Be careful when parking your vehicle to prevent grass fires from being started by hot
exhaust gases or exhaust system. Keep away from hot engine and generator parts to avoid
burning yourself. Keep the generator set and compartment clean and free of debris,
especially combustible materials. Never store fuel, oil or rags in the generator
compartment.
15) MARINE APPLICATION: RV generator sets do not comply with United States Coast Guard (USCG)
requirements. They must not be used for marine applications. Use only generator sets
specified for marine use in a marine application. USCG regulation 33CFR183 requires a
generator set to be ignition protected for use in a gasoline-fueled environment.
16) UNIT STARTS WITHOUT NOTICE: To prevent accidental starting on the units with remote start /
stop switch, always disconnect the battery by removing the negative (-) terminal first and
then the positive (+). Always disconnect the unit in this manner before working on the
generator or any equipment connected to it.
17) LOOSE COMPONENTS: Periodically check for and tighten any fasteners that may have become loose
from vibration or road shock. Serious damage may possibly occur if components become
dislodged or misaligned.
2
GENERATOR INSTALLATION
In RECREATIONAL VEHICLES
INTRODUCTION
Use this section as a guide when installing a generator set in a recreational vehicle, and then refer
to the appropriate operation section for specific instructions. When installing a RV generator set the
installation must comply with the current Safety Standards of ANSI / RVIA EGS-1-2003, ANSI A 119.2
/ NFPA 501C and applicable articles of ANSI / NFPA 70 of the National Electrical Code. Generator set
installations must also comply with state and local requirements.
MARINE APPLICATION
RV generator sets do not comply with United States Coast Guard (USCG) requirements and
must not be used for marine applications. Use only generator sets specified for marine use in marine
installations. USCG regulation 33CFR183 requires a generator set to be “ignition protected” when used
in a gasoline fueled environment.
GENERAL INFORMATION
This information section covers the RV generator set models listed below. To determine which
model is involved, check the model number found on the Power Technology nameplate attached to the
frame of the generator being installed. Follow all instructions to ensure proper installation and operation.
Each generator set features a Kubota diesel engine, rotating-field alternating current generator,
and a control box. The generator is directly connected to the engine for permanent alignment. Each
control box includes a Start / Stop switch, and a On /Off switch to reset the control module or lockout
any remote switch to prevent starting while service is being performed. The control box may also be
equipped with a switch to operate the mechanism used to move the generator in/out of the coach for
servicing. (Supplied by the coach manufacture). After the set is attached to the frame of the vehicle, all
that is usually required to make it operational is the following.
1. Attaching the exhaust system.
2. Add proper amount of radiator coolant.
3. Add oil to crankcase, to the dipstick FULL mark.
4. Connect fuel lines, remote switch, load leads and battery terminals.
(Consult the Specification Charts on the Following Pages for Requirements)
3
MODELS PTRV-17.5K PTRV-20K PTRV-17.5KT PTRV-20KT
DIMENSIONS L x W x H 41” x 27” x 28” 42” x 27” x 28” 41” x 27” x 28” 42” x 27” x 28”
WEIGHT 840 lbs. 850 lbs. 840 lbs. 850lbs.
ENGINE Kubota V-2203 Kubota V-2003-T Kubota V-2203 Kubota V-2003-T
RPMs 1800 1800 1800 1800
KW RATING 17.5 20 17.5 20
AC VOLTAGE 120 / 240 120 / 240 120/240 120/240
AMPERAGE 146/73 166/83 146/73 166/83
Hz 60 60 60 60
PHASE 1 1 1 1
GENERATOR COMPARTMENT
FREE AIR OPENING
400
Square Inches
400
Square Inches
400
Square Inches
400
Square Inches
RADIATOR AIR REQUIREMENTS 2120 CFM 2120 CFM 2120 CFM 2120 CFM
AIR REQUIREMENTS CONT’D
*Combustion Air Temperature: The output of the engine will decrease about 1% for
every 10°F of air temperature above 77°F or 25°C.
IMPORTANT: Insulation and Sound Absorbing Material used inside of the generator compartment
Must Not reduce the specified airspace clearance of one (1) inch or restrict the airflow around the
generator. Such reduction in airspace may lead to an overheating situation and reduced generator
performance. Also be sure the air inlet and outlet openings meet the specified requirements. Allow
clearance inside the generator compartment for easy access when routine maintenance is required.
WARNING: The generator compartment Must Be sealed to prevent hazardous fumes and vapors from
entering the vehicles other compartments and interior spaces. Plugging holes and sealing all seams will
greatly reduce this hazard.
WARNING: Drip Proofing! When installing a generator, the area directly beneath the generator end of
the unit must incorporate a non-flammable barrier. This barrier needs to be made of sufficient material
able to withstand and prevent molten metal, burning insulation, flaming or sparking particles from
penetrating the compartment floor or dripping beneath the compartment.
6
17.5KW 20KW
ENGINE SPEED IN RPM 1800 1800
OUTPUT IN HORSEPOWER 32.5 32.5
WATER FLOW – GAL. / MIN. 8.75 8.75
ENGINE INLET WATER TEMP. N/A N/A
THERMOSTAT – RATING 180°F 180°F
THERMOSTAT FULL OPEN 195°F 195°F
ENGINE OUTLET WATER TEMP.MAX. 235°F 235°F
HIGH TEMP. SHUTDOWN SWITCH 230°F 230°F
HEAT REJECTION – BTU / MIN. 1650 1650
HEAT REJECTION – BTU / HR. 99,000 99,000
REMOTE RADIATOR
AIR FLOW – CU. FT. / MIN.
1920 1920
ENGINE OIL TEMP. MAX. 268°F 268°F
COMBUSTION AIR TEMP. * N/A N/A
9
GENSET
DIMENSIONS
L x W x H
41” x 27” x 28”
MINIMUM
DIMENSION FOR
INSIDE CLEARANCE
OF AN ENCLOSURE
L x W x H
43” x 29” x 29”
NOTE: BESURE TO
ALLOW FOR THE
THICKNESS OF
SOUNDMAT OR
INSULATION
INSTALLATION DIMENSIONS
39

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