1. TECHNICAL FEATURES...........................................................................................................................4
2. MAINTENANCE OF GENERATOR..........................................................................................................
3. SAFETY RULES...................................................................................................................................... 22
4. LUBRICATION SYSTEM ........................................................................................................................
5. INSTALLING AND CONNECTING GAS LINES......................................................................................
6. GENERATOR ELECTRICAL CONNECTION..........................................................................................
7. TECHNICAL SPECIFICATIONS..............................................................................................................
8. SPARE PARTS LIST................................................................................................................................
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
No.. 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
you or contact us directly at the information provided below. If you have any questions or sugges-
tions, please contact us any time between 8:00 AM and 5:00 PM.
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.
Tips and Warning Labels
Warning, Danger and Attention labels are provided to indicate the possibility of damage and perso-
nal 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 rela-
ted generator equipment.
If you don’t follow the instructions of the operating requirements, it could result in personal
injury or other equipment damage.
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:
Nota
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.
Nota
Save These Instructions – This manual contains important instructions that should be followed
during installation and maintenance of the generator and battery.
1. 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 con-
trol 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 over-sized radiator and coolant reser-
voir, 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 compo-
nents 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 involve-
ment.
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 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.
Important Safety Instructions
SAVE THESE INSTRUCTIONS – This manual contains important instructions for the following
models BNL20SE single-phase and BNL20SE-3 three-phase units that should be followed comple-
tely during installation and maintenance of the generator and battery.
I. Warnings
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 fenêtresson-
touvertes.
Employezseulement EN DEHORS et loin des fenêtresouvertes, des portes, et des passages.
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-produ-
cing 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.
Grounding Generator
5. Grounding Electrical Equipment Hazardous voltage can cause severe injury or death. Electrocu-
tion 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 elec-
trode in accordance with state and local code requirements
6. Gas Vapors and Fuel Leaks. Explosive fuel vapors can cause severe injury or death. 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 grea-
ter than 85 dB can cause permanent hearing loss! Wear hearing protection at all times when wor-
king 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 equip-
ment.
Electrical back-feed 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 back-feeding 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.
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. TThere 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.
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 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.
Locate on the side corner of generator. When depressed, all generator control systems will imme-
diately 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.
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 genera-
tor from damage. Should this occur, turn off the generator unit and correct the cause before restar-
ting 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 Pre-start and Preparation
All necessary installation and maintenance must be conducted and performed by authorized licen-
sed 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 temperatu-
re shown below and add radiator coolant. Prior to initial start-up, replace all service panels and
close lid. Start engine and allow 10 minutes for system to warm-up. 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.
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.
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
- 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.
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 one 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.
