Lifan Energy Storm PD20REG-DB User manual

Lifan Power USA. 2250 Industrial Park Rd. Van Buren, AR 72956
PH 866-471-7464 www.lifanpowerusa.com
1
Owner’s Manual
□PD20REG-DB
□PD25REG-DB
Please keep and read all instructions carefully before operation!!!!
Save all instructions!!!!!!!!!!!
It is highly recommended that the engine ID is recorded for future need of
warranty, parts and service. It can be found stamped on the base of the engine
block or on the outside of original shipping carton.
Engine ID # __________________________________________

Lifan Power USA. 2250 Industrial Park Rd. Van Buren, AR 72956
PH 866-471-7464 www.lifanpowerusa.com
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Preface
Thank you for purchasing this high performance, liquid-cooled, automobile engine-driven
generator. This generator set is designed for use in stationary (permanent) applications
where unreliable utility power may occur. Keep and read this manual carefully and follow
all safety precautions and procedures in this manual to ensure proper equipment
operation and to avoid bodily injury or property damage. Operating instructions
presented in this manual assume that the standby electric and gas system has been
installed by an authorized Service dealer or licensed and qualified contractor.
Installation of this equipment is not a “Do-It-Yourself” (DIY) project!!!!!!!!!
ATTENTION!Follow all safety precautions and instructions as outlined in this manual in
its entirety. If any portion of this manual is not completely understood, please contact an
authorized service dealer near you for installation, starting, operating and servicing
procedures or contact us at 866-471-7464. Common sense and strict compliance with
these special instructions while performing service are essential to preventing accidents
For professional advice on this product and its operating requirements, please contact a
dealer near youor contact us directly at the information provided below. If you have any
questions or suggestions, please contact us any time between 8:00am and 5:00 PM
CST.
Warning Announcements!
Because this generator can be used as a single fuel or multi-fuel unit, pay close attention
to factory settings. This unit can run on natural gas (NG) or propane (LPG).
Please pay attention to all factory settings! Unit comes already preset to one fuel or the
other
Before starting generator：
● Read the user manual carefully and operate generator according to factory
recommendations.
● If you do not operate according to the instructions, it can cause personal injury or loss
of life

Lifan Power USA. 2250 Industrial Park Rd. Van Buren, AR 72956
PH 866-471-7464 www.lifanpowerusa.com
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Tips and Warning Labels
Warning, Danger andAttention labels are provided to indicate the possibility of damage
and personal injury when using generator. In addition, this information can indicate what
kind of damage you could experience.
If you don’t follow the operational requirements, it could result in damage to the engine
or related generator equipment.
If you don’t follow the instructions of the operating requirements, it could result in
personal injury or other equipment damage.

Lifan Power USA. 2250 Industrial Park Rd. Van Buren, AR 72956
PH 866-471-7464 www.lifanpowerusa.com
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If you don’t follow the instructions closely outlined in the operating requirements, it could
result in serious injury or loss of life.
Users must operate in accordance with all requirements; otherwise it could damage the
engine and genset.
This manual contains the following International ISO Graphical Symbols;

Lifan Power USA. 2250 Industrial Park Rd. Van Buren, AR 72956
PH 866-471-7464 www.lifanpowerusa.com
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Save These Instructions –The manufacture suggest that these rules for safe operation
be copied and posted in potential hazard areas. Safety should be stressed to all
operators, potential operators and service technicians for this equipment.
Save These Instructions –This manual contains important instructions that should be
followed during installation and maintenance of the generator and battery

Lifan Power USA. 2250 Industrial Park Rd. Van Buren, AR 72956
PH 866-471-7464 www.lifanpowerusa.com
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How to Obtain Installation, Parts
and Service
Contact Us at;
EQUIPSOURCE, LLC. D/B/A Lifan Power USA
2205 Industrial Park Road.
Van Buren, Arkansas. 32956
TEL: [phone]
FAX:[phone]
www.lifanpowerusa.com

Lifan Power USA. 2250 Industrial Park Rd. Van Buren, AR 72956
PH 866-471-7464 www.lifanpowerusa.com
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Table of Contents
Engine ID………………………………………….....................................................Page 1
Preface ………………………………………………………………………………….Page 2
Tips and Warning Labels…………..………………………………………………...Page3-5
How to Obtain Installation, Parts and Service………………………….………..Page 6
Table of Contents …………………………………………………………………….Page 7
Chapter One…………………………………………………………………………....Page 8
Technical Features…………………………………………………....Page 8
Specifications………………………………………………………….Page 9
Chapter Two……………………………………………………………………………Page 10
Important Safety Instructions………………………………………...Page 10
Warnings……………………………………………………………….Page 10
Fuel System…………………………………………………………....Page 11
Exhaust System………………………………………………………..Page 11
Grounding……………………………………………………………...Page 12
Gas Vapors and fuel leak’s…………………………………………..Page 13
Digital Display and operating system………………………………..Page 14
Emergency Stop Switch!.................................................................Page 15
Circuit Breaker…………………………………………………………Page 15
Engine Pre start preparation………………………………………….Page 16
Engine Oil………………………………………………………………Page 16
Cooling System………………………………………………………...Page 17
Fuel Conversation……………………………………………………..Page 17-18
Battery…………………………………………………………………...Page 19
Starting Generator……………………………………………………...Page 20
Chapter Three………………………………………………………………………… Page 23
Long Term storage and care…………………………………………..Page 23
Starting after storage……………………………………………….......Page 23-24
Chapter Four…………………………………………………………………………...Page 24
Break in period………………………………………………………….Page 24-25
Lubrication System…………………………………………………......Page 25
Oil Level……………………………………………………………….....Page 25-27
Cooling System………………………………………………………….Page 27-28
Belts…………………………………………………………....................Page 28-29
Notes……………………………………………………………………...Page 30
Chapter Five………………………………………………………………………..Page 30
Specifications and Quick Start Stop Instructions...................Page 30-36
Emission control device or system maintenance........Page 37-40

Lifan Power USA. 2250 Industrial Park Rd. Van Buren, AR 72956
PH 866-471-7464 www.lifanpowerusa.com
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Chapter one: Technical Features
I. Technical Features of the Single Phase Dual-Fuel Generator
This gas generator is Dual-fuel and able to utilize both Natural Gas (NG) and Liquid
Propane (LPG). It is a versatile multi-fuel engine. Based on our standards, we have
designed this unit to operate in an environmentally safe and user friendly manor:
1. Speed Regulating System: This gas generator uses an internally designed
electronic speed control system, allowing for quick and easy adjustments to the engine
speed that can be set to specific speed ranges. This control system allows the engine to
run more smoothly and respond quickly to sudden increases or decreases in required
engine speed.
2. Silent Air In-take System: Extra-large air intake cross-sections in the housing
enclosure ensures ample air flow for the engine and air in-take. This unique housing
enclosure structure leads to a significant reduction operating noise.
3. Large Liquid Cooled Radiator and Reservoir: The use of an oversized radiator
and coolant reservoir, like those used in automobile engines, allows for additional
radiator coil surface and helps maintain a more ambient and stable engine temperature
even in the hottest climates. Utilizing this liquid cooled system adds to the life and long
term operating dependability of your gas generator investment.
4. Automatic Transfer Switch (ATS) and Function: Automatic Transfer Switches are
critical components of any emergency or standby power system. They are used for
transferring essential loads and electrical distribution from one power source to another
automatically, without personal involvement.
5. Intelligent Hazard Control System and Function:The Intelligent Hazard Control
System warns of dangerous conditions that exist to the engine or generator. This system

Lifan Power USA. 2250 Industrial Park Rd. Van Buren, AR 72956
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continually checks and monitors the unit’s operating conditions and will automatically
shut down if detected, to help avoid costly damage. This system uses a visual control
panel that can be preset according to the user's needs.
I. Specifications- for more detailed specifications see installation manual.
Item
Unit
PD20REG-DB
PD25REG-DB
RATED
POWER（KW）
LPG
20
23
NG
18
21
FREQUENCY
(HZ)
60
60
SPEED（RPM）
3600
3600
RATED VOLT
（V）
120/240
120/240
RATED
CURRENT（A）
LPG
83.3
95.8
NG
75
87.5
PHASE
Single
Single
POWER
FACTOR
1.0
1.0
PROTECTION
LEVEL
IP23M
IP23M
INSULATION
A
A
POLE
2
2

Lifan Power USA. 2250 Industrial Park Rd. Van Buren, AR 72956
PH 866-471-7464 www.lifanpowerusa.com
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Chapter two: Important Safety Instructions
SAVE THESE INSTRUCTIONS –This manual contains important instructions for the
following modelsPD20REG-DB, PD25REG-DB thatshould be followed completely during
installation and maintenance of the generator and battery.
Ⅰ. Warning
1. Generator set operation. Carbon monoxide can cause severe nausea, fainting, or
even death. Carbon monoxide is an odorless, colorless, tasteless, nonirritating gas
that can cause death if inhaled for even a short time. Avoid breathing exhaust fumes
when working on or near the generator set. Never operate the generator set inside a
building. Never operate the generator set where exhaust gas could seep inside or be
drawn into a potentially occupied building through windows, air intake vents, or other
openings.
N'employezjamais à
l'intérieurd'unemaisonou d'un garage,
MÊME SI les portes et les
fenêtressontouvertes.
Employezseulement EN DEHORS
et loin des fenêtresouvertes, des portes,
et des passages.

Lifan Power USA. 2250 Industrial Park Rd. Van Buren, AR 72956
PH 866-471-7464 www.lifanpowerusa.com
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Risquetoxique de vapeurs. Les moteurs courants dégagent le carbone
oxyde, un gaztoxiqueinodore qui peut causer la nausée, l'évanouissement, ou la mort. Ne
mettez pas enmarcheou ne courez pas le moteur à l'intérieuroudans un secteurinclus,
mêmesi les fenêtres et les portessontouvertes.
2. Fuel system. Fuel Vapors are highly explosive and can cause severe injury or death.
Use extreme care when handling and storing fuels. Store fuels in a well-ventilated
area away from spark-producing equipment, gas hot water heaters and out of the
reach of children. Never add fuel while the engine is running or hot, fuel spills may
ignite on contact with hot parts and muffler. Do not smoke or operate around sparks
or open flames. Keep fuel lines and connections tight and in good working condition.
3. Servicing the exhaust system. Hot parts can cause severe injury. Do not touch hot
engine parts. The engine and exhaust system components become extremely hot during
operation.
4. Servicing the engine. Hot parts can cause personal injury or property damage. Install
(optional feature, sold separately) engine block heater for extreme cold weather
before connecting it to power (See separate installation instructions). Operating the
engine block heater before installation can cause burns and component damage.
Disconnect power to the engine block heater and allow it to cool before servicing the
heater or nearby parts. Keep the generator at least 2m（6ft）distance from other devices.

Lifan Power USA. 2250 Industrial Park Rd. Van Buren, AR 72956
PH 866-471-7464 www.lifanpowerusa.com
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Grounding
5. Grounding electrical equipment Hazardous voltage can cause severe injury or
death. Electrocution is possible whenever electricity is present. Ensure you comply with
all applicable state and local codes and standards. Electrically ground the generator set,
transfer switch, and related equipment and electrical circuits. Turn off the main circuit
breakers of all power sources before servicing the equipment. Never contact electrical
leads or appliances when standing in water or on wet ground because these conditions
increase the risk of electrocution. It is highly recommended that a barrier exist between
you and the ground surface. We recommend using a wooden pallet with rubber mat on
top to stand on while working or servicing the standby generator.
Grounding is required of all AC circuits, use terminal (identify terminal)for bonding this
circuit to the enclosure with a grounding rod (Not provided with unit). Ground the
enclosure to a grounding electrode in accordance with state and local code
requirements.

Lifan Power USA. 2250 Industrial Park Rd. Van Buren, AR 72956
PH 866-471-7464 www.lifanpowerusa.com
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6. Gas vapors and fuel leaks. Explosive fuel vapors can cause severe injury ordeath.
Fuel leaks can cause an explosion. Use digital gas leak detector on all gas connections
for no less than 1 minuet per connection. Leak detector not included with generator.
Contact Service provider.
7. Engine noise. Hazardous noise can cause hearing loss. Generator sets not equipped
with sound enclosures can produce noise levels greater than 105 dB. Prolonged
exposure to noise levels greater than 85 dB can cause permanent hearing loss!
Wear hearing protection at all times when working near an operating generator set.
8. Short circuits. Hazardous voltage/current can cause severe injury or death. Short
circuits can cause bodily injury and/or equipment damage. Do not connect electrical
contacts with tools or while wearing jewelry when making adjustments or repairs.
Remove all jewelry before servicing the equipment.
Electrical backfeed through the utility power supply can cause severe injury or
death. You must install a manual or automatic transfer switch on all standby power
applications and installations. This is to prevent the backfeeding of electrical current
through power lines causing fire, severe injury or death to utility personnel working on
power lines.
9. Moving Parts. When the generator set is in operation, the cooling fan is rotating. Do
not open the maintenance cover and make adjustment while generator is running.
Please shut down the engine and turn electrical breaker in off position before
maintenance or operation. Before restarting, close all service panels
10. CAUTION: FOR STANDBY ELECTRICAL OUTPUT, CONNECT GENERATOR TO
SUITABLY RATED TRANSFER SWITCH IN ACCORDANCE WITH THE CANADIAN

Lifan Power USA. 2250 Industrial Park Rd. Van Buren, AR 72956
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ELECTRICAL CODE, PART I. THIS UNIT REQUIRES A 200amp TRANSFER SWITCH
ATTENTION: POUR L’ALIMENTATION DE RÉSERVE, CONNECTER LA SORTIE DE
LA GÉNÉRATRICE À UN COMMUTATEUR DE CALIBRE APPROPRIÉ
CONFORMÉMENT AU CODE CANADIEN DE L’ÉLECTRICITÉ, PREMIÈRE PARTIE
11. THERE IS A PERMANENT CONDUCTOR BETWEEN THE GENERATOR (STATOR
WINDING) AND THE FRAME
IL Y A UN CONDUCTEUR PERMANENT ENTRE LA GÉNÉRATRICE (ENROULEMENT
DU STATOR) ET LE CADRE
12．Keep top cover locked at all times with provided key. Keep key stored in safe place
out of the reach of children. If key is lost please call 866-471-7464.
Ⅱ. Operating System Functions and Definitions
Depending on the generator unit model, control button functions may vary significantly.
Refer to the following functions:
1. Operating System
Power switch：
Function：The power switch controls the entire generator set control system. If this
switch is placed in the OFF (O push in down mode) position, the internal electrical control
1. Control panel
2. Power switch
3. Fuel switch
4. Stop
5. Manual Start
6. Auto Start
7. Data check up
8. Data check down
Auto

Lifan Power USA. 2250 Industrial Park Rd. Van Buren, AR 72956
PH 866-471-7464 www.lifanpowerusa.com
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circuit of the unit will not have any electrical power. When this switch is placed in the ON
(I in the up mode) position, the control system can be automatically started with ATS,
tested and run.
Fuel switch：
Function：The fuel switch allows the fuel to flow to the engine when placed in the ON or
( I ) is in the up position. Likewise, the switch turns the flow of fuel off to the engine when
placed in the OFF (O) push down position.
Emergency stop switch:
Function：The photo above shows Emergency Stop Switch on outside corner of unit.
Located on the outside corner of generator, when depressed, all generator control
systems will immediately shut down, including the engine and generator head. The
Emergency Stop Switch should be pressed immediately should any
unexpected emergencies occur. Depressing this button will help minimize dangerous
damage to persons, pets, property, plants, or to the generator unit itself.
Use ：When an emergency situation occurs, immediately press the Emergency
Stop Switch. The unit will automatically shut down. Once the switch has been depressed
and the emergency situation has passed, to re-start the generator unit,
rotate clockwise 90 ° to pop up into the normal operational position.

Lifan Power USA. 2250 Industrial Park Rd. Van Buren, AR 72956
PH 866-471-7464 www.lifanpowerusa.com
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Circuit breaker:
Function：The circuit breaker controls the ON/OFF functions of the generators electrical
power output. When this switch is in the up (ON) position, electrical power output will be
produced and flow normally. When this switch is placed in the down (OFF) position,
electrical power output will be broken, or turned off. However, as a safety function, when
this switch is placed in the ON position, the production of a too large of an electrical load
or a short circuit due to faulty operation, the switch will immediately and automatically
switch to the OFF position in order to protect the generator from damage. Should this
occur, turn off the generator unit and correct the cause before restarting and placing the
circuit breaker in the ON position.
Use：When starting manually, always start the generator before placing the circuit
breaker in the ON position. Likewise, when operating manually, place the circuit
breaker in the OFF position before shutting the generator down.
III. Engine Prestart and Preparation
All necessary installation and maintenance must be conducted and performed
by authorized licensed personnel.
Before starting engine for the first time, engine oil and radiator coolant must be added.
An initial fluid inspection and pre-check is recommended before starting genset for the
first time or when unit has been in operation for over 20 hours. It can also be used as a
quick review of all fluids. Check all of the following items before running system for the
first time.
IMPORTANT NOTE! Unit is not shipped with engine oil or coolant from Factory!!
After installment of generator, fill engine with recommended oil weight based on ambient
temperature shown below and add radiator coolant. Prior to initial startup, replace all
service panels and close lid. Start engine and allow 10 minutes for system to warmup.
After this has been performed remove service panels rise lid and check for any leaks or
drips. If found, tighten lose hoses, clamps or plugs. Recheck all fluid levels and top off as
necessary.

Lifan Power USA. 2250 Industrial Park Rd. Van Buren, AR 72956
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1. Engine Oil. The unit is not shipped with oil from factory!!! Use high-quality detergent
oil “Classified for Service in CC, SD, SE, or SF use” Only use oil having the following
SAE viscosity ratings. Fill with the recommended amount of oil as specified. Overfilling or
under filling can cause damage to the engine. Use the following recommended or similar
type engine oil.
●Place funnel in engine oil inlet.
●First time operation will require 4 liters or (4.25qts) of oil
●Check oil gauge dipstick regularly, oil level should be kept between top and
bottom lines, at all times. It is preferred to be at the top mark but not over.
2. Cooling System
Use only automotive grade antifreeze and distilled water in cooling system.
Do not use water that contains salt or alkalis (Tap Water)! Using non-distilled water
creates scale in the radiator causing corrosion and premature wear.
You must check and maintain all fuel, lubricant and coolant levels. Not doing so will
accelerate and shorten the life of the standby system. Attention must be paid to all fluid
systems and annually serviced buy an authorized service provider or call (866)-471-7464 for
assistance.
Temperature
Recommended Oil grade
Below 32° F (0° C)
SAE 10W or 15W-40
32° to 80° F (-1° to 27° C)
SAE 20W or 15W-40
Above 80° F (27° C)
SAE 30W or 15W-40

Lifan Power USA. 2250 Industrial Park Rd. Van Buren, AR 72956
PH 866-471-7464 www.lifanpowerusa.com
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3. Fuel Conversion
Do not touch hot engine parts. The engine and exhaust system components become
extremely hot during operation.
Two fuel connections on the fuel block allow field conversion between natural gas (NG)
and Liquid Propane (LPG). The fuel metering valves are factory-set and sealed to
provide the best possible hot and cold starting.
Use the following procedure to convert fuel from type to another.
Natural Gas (NG) and Liquid Propane ( LPG)Conversion
● Use a pressure reducing valve to reduce LP pressure supply.
● Pushing the button as attached pictures below to the natural gas or LP vapor per the
fuel which you want to use.
LPG NG
A. Liquid propane (LP Vapor)
In engines set up to run on Liquid propane, please check the fuel supply pressure, lower
or higher pressure range will result in equipment failure. Inlet pressure 1.7kPa to 3.5kPa,
and gas line should be no longer than 16 feet or 5 meters, the inner diameter shall not be
less than (0.63”) or 16mm.
Pressure relief valve
Pressure meter

Lifan Power USA. 2250 Industrial Park Rd. Van Buren, AR 72956
PH 866-471-7464 www.lifanpowerusa.com
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It is strictly prohibited to remove high pressure gas lines during maintenance, service and
repair. You must check and test for gas leaks using a gas leak detector before use. The
observation time is not less than 1 minute per connection.
Based on different gas sources that are available, there may be different gas
pressures present. Make sure pressure is known before installation. A pressure reducing
valve may be required to obtain optimal requirements. You will need to use a pressure
reducing valve if the pressure is excessively high. Tools such as leak detectors and
pressure gauges are not included with this purchase.
B. Natural Gas
If engine set to run on natural gas from factory, please check the fuel pressure and
flow. The purchase of a pressure reducing valve might be required and not included
with this unit.
CAUTION! After installation please contact service provider if user wants to switch fuel
types from Natural Gas (NG) to Liquid Propane Gas (LPG) or vice versa. Please
contact the seller, installer or manufacture at (866)-471-7464.
4. Electrical Connections
If the generator set is used for standby power, install properly sized automatic transfer
switch (ATS) provided by manufacture. This will prevent inadvertent interruptions of
standby power and normal sources of supply. Always shut down generator before
servicing the equipment. Never contact electrical leads or appliances when standing in
water or on wet ground because these conditions increase the risk of electrical shock.
5. Battery
Connect positive lead wire first (+) and then negative lead wire (-) to matching positive (+)
and negative (-) terminals on battery. Connect negative（-）lead last!!!!!
IMPORTANT!The generator will not start and circuit board damage can occur if
battery is connected in reverse.
(Before initial use the maintenance free battery should be tested for voltage, if >12.6V,it
can be installed and used immediately; After first time use or <12.6V it should be
re-charge before use.)