Gentech GP3500i User manual

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TABLE OF CONTENTS:
1. GENERAL SAFETY INFORMATION Page 4
2. ELECTRICAL SAFETY INFORMATION Page 5
3. SAFETY STICKERS AND EXPLANATIONS Page 7
4. SPECIFICATIONS Page 8
5. PRE-OPERATING INSPECTION Page 9
6. CONTROLS AND FEATURES Page 10
7. PRE-OPERATION CHECKS Page 15
8. ELECTRICAL CONNECTION Page 20
9. MAINTENANCE Page 27
10. TRANSPORTING AND STORAGE Page 35
11. TROUBLE SHOOTING Page 38
12. CIRCUIT DIAGRAM Page 39

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IMPORTANT:
Thank you for purchasing a Gentech Power Gasoline Inverter Generator
(hereinafter referred to as the “inverter generator”).
This manual will assist you in operating and maintaining your generator. This
manual is the latest version.
With the continuous improvement and upgrading of this product, the
manufacturer reserves the right to modify this manual without notice. The
manufacturer shall assume no liability for incorrect information contained in
this manual.
This manual is an integral part of the generator. When the generator is
transferred to others, this manual should be handed over to the new owner.
Some important information in this manual will be indicated in the following
way. The users should pay special attention to these instructions.
The range of Gentech Power Products are safe and reliable, but incorrect
use of these products may cause personal injury and or damage to your
machine. Please read this manual thoroughly before operation as this
product is required to operate strictly in accordance with this manual.

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IMPORTANT NOTICES:
PLEASE PAY SPECIAL ATTENTION TO STATEMENTS
PRECEDED BY THE FOLLOWING WORDS:
Danger
•DANGER
This indicates a hazardous situation, which, if not avoided, will
result in death or serious injury.
Warning
•WARNING:
This indicates a hazardous situation, which, if not avoided,
could result in death or serious injury.
Caution
CAUTION:
This indicates a hazardous situation, which, if not avoided,
could result in injury.
For any queries on the above please contact GenTech
Industries

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1. GENERAL SAFETY INFORMATION:
Danger Warning Caution

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2. ELECTRICAL SAFETY INFORMATION:
2.1 Electrical equipment including cables, cords and plug connections must
not be defective. Please check before using.
2.2 Do not plug the Generator directly into a wall socket – outlet.
2.3 The Generator shall not be connected to other power sources such as
the power company supply mains. In special cases where stand-by
connection to existing electrical systems or integration therewith is
intended, note that it is a legal requirement that such connection or
integration may only be performed by a competent person.
2.4 Protection against electrical shock depends on circuit-breakers that are
specially matched to the Generator. If a circuit breaker requires
replacement, it shall be replaced by a circuit breaker that has identical
ratings and performance characteristics.
2.5 Due to high mechanical stresses only tough rubber-sheathed flexible
cable should be used
2.6 If the Generator is of Class II construction then earthing of the Generator
is not required.
2.7 Extension Cords:
When an extension cord set is connected to the generating set the
following should be considered:
2.7.1 A 1mm2 flexible cable can draw a maximum of 10A provided that
the cable is no longer than 25m.

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2.7.2 A 1.5mm2 flexible cable can draw a maximum of 10a provided that
the cable is not longer than 35m
2.7.3 A 1.5mm2 flexible cable can draw a maximum of 16a provided that
the cable is not longer than 20m
2.7.4 A 2.5mm2 flexible cable can draw a maximum of 10a provided the
cable is not longer than 65m
2.7.5 A 2.5mm2 flexible cable can draw a maximum of 16a provided that
the cable is not longer than 45m
2.7.6 A 4mm2 flexible cable can draw a maximum of 10a provided that
the cable is no longer than 100m
2.7.7 A 4mm2 flexible cable can draw a maximum of 16a provided that
the cable is no longer than 65m.
2.8 Voltage drop in electric extension cords:
When a long electric extension cord is used to connect an appliance or
tool to the generator, a certain amount of voltage drops or loss occurs in
the extension cord which reduces the effective voltage available for the
appliance or tool.
The chart below has been prepared to illustrate the approximate voltage
loss when an extension cord of 300 feet (approx.100 meters) is used to
connect an appliance or tool to the generator.

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3. SAFETY STICKERS AND EXPLANATIONS:

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4. SPECIFICATIONS:

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5. PRE-OPERATING INSPECTION:
5.1 Engine Oil – This is a major factor affecting the performance and life
span of the Generator. Do not use non-detergent and 2 stroke oil as
this will damage the Generator.
5.2 Before using the Generator check the oil level, ensure that the unit is
on a flat and level surface when doing this and that the unit is “OFF”
5.3 The recommended oil to use is 4 – stroke gasoline engine oil IE
SAE10W-30
5.4 Running the Generator with insufficient engine oil will cause damage
to the Generator.
5.5 Please note that the Generator is fitted with a “low oil alert sensor”.
5.6 Only use clean un-leaded fuel when operating/running the
Generator. Dirty/contaminated fuel will cause damage to the
Generator and will affect the performance.
5.7 Gasoline is extremely flammable, exercise extreme caution when
putting fuel into the fuel tank. DO NOT BE NEGLIGENT.
5.8 Always refuel in a well-ventilated area.
5.9 Do not attempt to refuel the Generator whilst the engine is running.
5.10 Be careful not to over fill the tank when refueling. If this happens,
clean the fuel spillage properly.
5.11 Do not smoke whilst refueling.
5.12 Keep out of reach of children

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6. CONTROLS AND FEATURES

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6.2 CONTROL FUNCTIONS
LOW IDLE MODE
When the switch is in the “ON” position the throttle
controls the engine speed according to the connected
electrical load. The results are better fuel consumption
and less noise. When the switch is in the” OFF”
position the engine runs at 4,500 rpm regardless of the
electrical load.
Note: The switch must be “OFF” when using electrical
devices that require a large starting current such as
compressors, pumps or refrigerators.
LED INDICATORS
The Led Indicators assist in communicating status and
functions of the Generator.
Output Indicator (Green)
The Output Indicator comes on when the engine starts
and produces power.
Overload Alarm (Red)
The Overload Alarm comes on when a connected
device requires more power than the generator is able to produce.
The Output Indicator (Green) will go off and the Overload Alarm (Red) will stay
on, but the engine will continue to run.

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Caution
Do not overload the generator. Low Oil Alarm (Red)
When the engine oil falls below the required level the Low Oil Alarm will come
on and the engine will stop automatically. The engine will not restart until oil is
added to the unit to bring it up to the appropriate level.
6.3 TO RESET THE GENERATOR
6.3.1 Turn off any connected electric devices and stop the engine.
6.3.2 Reduce the total wattage of the connected electric devices
within the rated output.
6.3.3 Use in proper ventilated areas. Maintain at least 1m of
clearance on all sides for adequate cooling.
6.3.4 After checking, restart the engine.
Note:
The Overload Alarm may come on for a few seconds when
first using electrical devices that require a large starting
current, such as compressors, pumps or refrigerators.
When starting the unit, if the Low Oil Alarm light flickers and
the engine will not start, you will need to add engine oil
before attempting to restart the engine.
The generator should only be operated on a level
surface.DO NOT operate the generator on loose ground or
obvious inclines. The low oil shutdown feature may be
prematurely activated causing the engine not to start.

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12V 8A DC
The 12V 8A DC Output is provided for
battery charging. Follow the instructions in
the owner’s manual for the battery
charging procedures.
8A DC Circuit Breaker
The 8A DC Circuit Breaker turns off automatically if the current exceeds 8A.
If the circuit breaker turns “OFF” you will need to push it “in” to turn it “on”
again.
230V AC Outlet
The Outlet is used to power
230V Single Phase 50Hz
loads requiring up to 3600W
continuous power.

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7. PRE-OPERATION CHECKS
7.1 UNPACK THE GENERATOR:
Remove the generator from its packaging.
Inspect the generator to ensure that no damage has incurred in
shipping or handling. If the unit appears to be damaged do not add
oil or fuel or attempt to start the generator.
Check to ensure that you have received the following items:
•Generator
•12V Charging Cables
•Oil Funnel
7.2 ADDING THE ENGINE OIL:
The generator has been shipped without engine oil.
DO NOT add fuel or start the engine before adding engine oil.
In order to add engine oil, you will need to remove the side panel
from the generator see Figure 1

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Place the generator on a level
surface.DO NOT tilt the
generator while adding oil. It
can cause you to overfill the oil
and or cause the oil leak into
areas in which it is not
intended. Remove the oil filler
cap seen in figure 2.
Using the funnel provided, fill
with 0.6L of SAE10W-30 or
15W-40 (SEE FIGURE 3) See
figure 4 for proper oil level.
Replace the fuel cap and
secure the side panel with the
screws provided.
Ensure that the correct
amount of oil is used of 0.4L.

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RECOMMENDED ENGINE OIL:
Only use 4 stroke automotive oil (API or SE) alternatively you can use a
higher grade (SG, SH or SJ). SAE 15W-40 is recommended for general
all temperature use. If single viscosity oil is used, select the appropriate
viscosity for the average temperature in your area.
7.3 ADDING FUEL:
7.3.1 Do not overfill the tank, otherwise it may overflow when the fuel
warms up and expands.
Note: For safety reasons once the fuel has been added to this unit it cannot be
returned to the place of purchase, please contact Gentech Industries for all
service-related enquiries.
7.3.2 Use clean, fresh, regular unleaded fuel with a minimum octane
level of 85.
7.3.3 DO NOT mix oil with the fuel.
7.3.4 Always clean the area around the fuel cap.
7.3.5 Remove the fuel cap.
7.3.6 Be sure that the fuel strainer is in place.
7.3.7 Slowly add the fuel to the tank.
7.3.8 Do not exceed the red marker position of the fuel filter.
7.3.9 Screw on the fuel cap and wipe away and spilled fuel.

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Note: Use only unleaded fuel, the
use of leaded fuel will cause
severed damage to the internal
engine parts. After filling the fuel
ensure that the fuel tank cap is
securely tightened
7.4 STARTING THE ENGINE:
ALWAYS OPERATE THE GENERATOR IN AWELL
VENTILATED AREA. DO NOT connect any electrical devices to
the outlets on the generator before starting the engine.
Turn the LOW IDLE MODE switch “OFF” you may turn
the switch to the “ON” position once the engine is
started and a steady idle is achieved.
Turn the fuel valve to the “On” position.

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Pull choke lever out to the “START”
position.
Grasp the carrying handle firmly to prevent
the generator from falling over when
pulling the recoil starter.
Pull the recoil starter slowly until it is
engaged and then pull it briskly.
After the engine starts, warm up the
engine until the engine does not stop
when the choke knob is returned to its
original position.
Push choke lever in to the “RUN” position.

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7.5 STOPPING THE ENGINE:
Stopping the engine whilst in the “generator” function:
7.5.1 Disconnect the load from the AC receptacle.
7.5.2 Turn the engine switch to the “OFF” position
7.5.3 Turn the fuel switch off.
Turn the engine switch to the
“OFF” position.
Turn the fuel switch off.