GenConnex GXK LPNG-EU7000is-Kit-EC5.0 User manual

Supplement
to Honda EU7000is
OEM Owner’s Manual
Genconnex is a trademark of New England Gen-Connect LLC
Honda is a registered trademark of Honda Motor Co., Ltd.
Model number
GXK LPNG-EU7000is-Kit-E 5.0
Genconnex®
Engineered, Tested & EPA Certified
Genconnex®
70-0005r5.01
Propane & Natural Gas
EFI Conversion Kit for
Honda EU7000is
y Genconnex
1-800-341-0792
Parts, Service and Support
[email protected]
Genconnex
Conversion Kit Warranty
This conversion system “kit” is designed and manufactured to conform with the
applica le requirements of the EPA and California Air Resources Board, is free from
defects in materials and workmanship which would cause the this conversion system
to fail or to cause damage to any part on the converted generator, is warranted for 2
years from the installation date, is transfera le to su sequent purchasers, and
covers full repair and replacement costs including the costs of diagnosis, la or and
parts (and only in California includes any part on the converted
vehicle/engine/equipment that is damaged due to a defect in the alternative fuel
conversion system). We reserve the right to deny warranty claims when, in our sole
ut reasona le determination conclude that the cause of the primary failure was due
to misuse and neglect (including ut not limited to flood, sand & de ris filled, impact
with vehicle or heavy o ject, etc) or failure to perform the asic maintenance called
for in this supplement or the original Honda manual.
We disclaim any responsi ility for loss of time or use of the product, transportation,
commercial loss, or any other incidental or consequential damage. Any implied
warranties are limited to the duration of this written warranty. We will either repair or
replace with like-kind unit, or issue a refund, within 30 days of receipt of the unit or
goods. We will pay shipping costs within the continental 48 states to and ack from
our repair facility if you call first to get a pre-paid shipping la el sent to you y us.
Factory and Warranty
35 Pond Park Road, Unit 11, Hingham, MA 02043 Genconnex® and HomeconnexTM are trademarks of
New England Gen- onnect LL , opyright 2023 All rights reserved.
www.genconnex.net www.genconnexdirect.net
We offer out-of-warranty repair service for any units we modify or manufacture at our
main factory and at additional authorized dealers provided parts are still availa le
from the original OEM. Please call for details, email us at
[email protected] or go to www.genconnexdirect.net to locate a service
center near you.
Consu er Service Infor ation
Engineered, Tested & EPA Certified
Genconnex®
NEW 5th-Gen features include computerized electronic fuel control,
for optimum performance and cleaner emissions.

5
Thank you for purchasing a Genconnex conversion kit. We sincerely
hope you are satisfied with your purchase for many years.
Before operating your generator, please take a moment to read this entire
manual along with the original Honda Owner’s Manual. This manual is
intended to e a supplement to the original Honda Owner’s Manual with
regard to operating from alternate fuels. Where different, this manual
supersede s the Honda Owner’s Manual unless otherwise noted.
Table of Contents
1) Safety Infor ation >>>>>>>>>>>>>>>>>>>>> 1
Propane Tank Sizing Guidelines
2) Tips before starting ........................................... 2
3) Use & Maintenance ............................................ 3-4
The Proper Fuel Pressure for your Generator
How to Set the Generator’s Fuel Selection Switch
How to Connect your Generator to a Propane tank
How to Start and Stop Your Generator
4) Trouble Shooting ……….……………………….. 4
4) Technical Infor ation ..........….......................... 5
Propane Tank Run Time Chart
Understanding Pressure-Reducing Regulators
Specification Changes for Tri-Fuel Conversion
High-Altitude Operation
6) Warranty & Service Infor ation ....................... 6
Customer Service Information
Technical Infor ation
How long will a tank run y generator?
Based on lower heating value of Propane 3H8 is approx 85,000 Btu/gal @ 90% full tank
Note that tank refill can varying from 75-100% depending on provider.
20lb/4.7gal 30lb/7.0gal 60lb/14gal 100lb/25gal
(400,000Btu) (600,000Btu) (1,200,000Btu) (2,000,000Btu)
1375W average load (eco on)
2750W average load (eco on)
4125W average load
5500W average load
10hrs 15hrs 30hrs 53hrs
10hrs 20hrs 36hrs
8hrs 15hrs 27hrs
11hrs 20hrs
EU7000is
RED means only can use tank/average load combination in weather above 32 deg F or tank won’ t
vaporize propane fast enough to keep up with demand. Propane stops vaporizing at -44Deg F.
5hrs
Engine Oil: SAE 0W-20 Fully Synthetic (-20deg F to 0deg F)
Quick Reference Infor ation
Propane Natural Gas Load
4.00 l s/hr 84,000 BTU/hr 5500 Watts
2.22 l s/hr 46,000 BTU/hr 2750 Watts
1.58 l s/hr 32,700 BTU/hr 1375 Watts
Fuel Usage:
Max Output on Propane 7.0kW
Note: this spark gap is essential to prevent rough cold weather starting.
A larger spark gap up to .026 is accepta le for warm to hot weather
Inside Tank
(psi = pounds per square inch) (w.c. = inches Water Column)
Red Regulator reduces to:
Silver regulator reduces to:
60psi to 120psi+ (too high!)
Pressure
10-15 psi / 277-330”w.c. (too high!)
1/2 psi / 7-11”w.c. (correct)
Understanding pressure-reducing regulators
High Altitude Operation
This generator comes with computer controlled electronic fuel induction for natural
gas and propane operation and computer controlled electronic fuel injection for
gasoline operation. This, along with the uilt in a solute am ient air pressure the on-
oard computer will automatically correct for altitude etween sea level and
approximately 10,000ft. Note that engines in general will lose etween 2.5% to 3%
of engine power for every 1000ft a ove sea level. At 10,000ft the maximum power
on propane, for instance, will e approx 4,900Watts vs 7,000Watts at sea level
SAE 10W-30 Fully Synthetic ( 30deg F to 110deg F)
SAE 5W-30 Fully Synthetic ( 0deg F to 110deg F)
Specifications changes for Bi-Fuel conversion
Engine Oil Fully synthetic SAE 0W, 5W or 10W-30
Fuel Options Propane, Natural Gas
Propane & Nat. Gas Pressure 7-13” water column (approx. 1/2psi)
Spark Plug RC12YC Champion
Max Output on Natural Gas 5.8kW (DO NOT LET LOAD EXCEED THIS)
Spark Plug:Champion: RC12YC 0.019-.020 inches gap

1 4
To START your generator from propane BBQ tanks, connect the supplied regulator hose to
oth the propane tank and generator. Slowly turn on the propane tank. If you hear a “ting”
sound as you turn on the BBQ valve you may have actuated the tank’s excess flow valve. If
this happens, either wait a moment for it to automatically reset or you will have to turn off tank
valve and repeat this step slower. To connect to larger propane tanks with regulators already
on them or natural gas connect the straight-through hose to oth the generator and supply line
quick disconnects.
Note that your generator has a secondary propane & natural gas fuel lock-off solenoid inside.
Because of this, you must jump start this generator with a car attery or equivalent if needed.
Also, note that it may take several successive attempts to start your generator y any means
ased on your fuel hose length This is ecause there will e air trapped in the hose when first
connected that will have to work through efore the generator receives pure fuel.
To STOP your generator, we recommend that you turn off what you are powering (generator
load), then turn off the gas supply, then turn off the key. This is a est practice when possi le
to minimize potential accidents and removes the smell of fuel from your hose when
disconnecting it.
How to start your generator and STOP your generator
Troubleshooting
Generator won’t start
1. Make sure the generator’s fuel selection switch matches the fuel you are using
2. Check that your attery is charged. If the display turns off or you hear just a “clunk”
sound ut it does not turn over, your attery is either ad or not charged enough. If
needed, you can either jump start the attery or use a attery charger to charge it.
3. Check that propane tank hose connection is fully screwed onto tank tightly.
4. Turn your propane tank off then ack on slowly to check/reset tank excess flow valve.
5. Check that your air cleaner element is not flooded with oil. This can happen if your
generator tips over. If it is, squeeze filter etween paper towels, then properly
dispose of oily paper towels. (oily rags can spontaneously com ust in gar age or in
pile - hang until dry, then soak with water and detergent efore discarding)
6. Check that your tank isn’t empty, or near empty or has tipped over. If your propane
tank tipped over, the tank valve may freeze up. Return tank to upright position and let
it sit for a while without use to let valve thaw and/or drain.
7. Check the status lights on Genconnex EFI control ox located at the ottom of the oil
fill side door. The green power light should e on when the start utton is pressed.
There are two lights to show which fuel the EFI controller senses you have selected,
a light that lights if the O2 sensor signal is poor or too low, and a light that lights up if
the altitude sensor is a ove 10,000 feet or damaged.
Safety Infor ation
NOTICE:
This section is intended to augment safety information in the original Honda
OEM manual. Read the Honda Owner’s Manual efore operating
this generator.
DANGER:
Failure to follow instructions ay result in explosion or fire causing
property da age, serious injury or death.
DO NOT attempt to use damaged (including ut not limited to kinked, cut, chewed or plugged)
equipment and hoses. See your local LP or Natural Gas dealer for repairs.
DO NOT operate a generator inside your home, garage, or place of usiness. It must e
used outdoors at all times with all near y doors and windows closed. The National Fire
Code requires the generator e a minimum of 5 feet from any structure and highly
recommends a minimum distance of 10 feet to any openings including windows and doors.
DO NOT attempt to make repairs yourself
DO NOT connect to non-approved tanks or systems
DO NOT use an open flame to check for gas leaks
DO NOT perform your own gas pipe installation or repair without a proper license
DO NOT let fuel hose/regulator or tank come in direct contact with exhaust pipe
DO NOT make any alterations or modifications to any natural gas or propane supply. You must
use a licensed gas fitter/plum er and follow all state and local codes.
DO NOT store propane tanks in your home or garage etc.
INSPECT all hoses and connections prior to use
per generator output rating
(assuming 1/2-3/4 average rated load)
> 10 Deg F
2kW 20l tank,
3kW 30l tank,
7kW 60l tank
10 to -10 Deg F
2kW 30l tank
3kW 40l tank
7kW 100l tank
-10 to -20 Deg F
2kW 40l tank
3lW 60l tank
7kW 100l tanks
PROPANE TANK SIZING GUIDELINES
Propane tanks vaporize the fuel inside at a rate ased on the rate of heat a sor ed from the
tanks steel shell. The colder the temperature the slower the propane vaporizes until at some
point the generator is requiring more vapor per minute than the tank can produce. This will
cause the generator to turn off or run very poorly.
1. Make sure oth side doors are latched close.
2. Make sure the attery door is installed and screwed close. Note there is a cutout
in the top of the door for remotes and external attery leads.
3. Do not start your generator in ECO mode. Let it warm up 5 minutes first.
Generator runs rough

32
Use & Maintenance
How to connect your generator to a propane tank
1) Set up your generator outdoors on a hard level
surface such as a driveway or concrete patio at least 5’
from any opening in a dwelling (window, door vent etc)
ut prefera ly 10 feet.
2) Take your propane tank and place it next to the
generator making sure it is secured from tipping over
and close enough for the hose/regulator to reach with a
slight slack in the hose (not pulling on fittings). A milk
crate is ideal for 20 and 30l tanks, ut taller tanks will
need additional securing.
3) Close the valve on the propane tank then attach the
regulator with integral hose onto the tank. Connection
should e snug ut do not tighten with a wrench.
4) Attach the other end of hose with the female quick-
disconnect onto the male quick-disconnect found on top
of generator. To do this, fully pull ack on the safety
shroud of the female quick-disconnect to expose the
ring of earings, insert fully over male fitting on
generator, then release the shroud to lock in place. See
“Safety Information” section of this supplement for more
details.
The proper fuel pressure for your generator
Your generator comes pre-set from the factory to run from low pressure natural gas and
propane at 7-11” w.c. equivalent to max 1/2psi (also referred to as standard household
pressure). DO NOT connect your generator directly to a propane tank without the
proper regulator or to an intermediate 10-15psi regulator often found on large tanks.
How to set the generator’s fuel selector switch
Your generator has a simple 3 position rocker switch located on
the top of the generator Always turn off the generator efore
changing fuel selection! Note Natural gas is selected in
picture.
0
Switch Position
II
I
Off
Natural Gas
Propane
1. DO NOT START YOUR GENERATOR IN ECO ‘ON’! Turn it off efore every
start until 2minutes when warm and 5 minutes cold. We also recommend ECO
mode only if your load will not e fluctuating greatly or running motors. This
prevents a rown-out and possi le damage to your equipment as the
generator tries to quickly increase RPM’s to handle the sudden changes.
2. Make sure your generator’s battery is fully charged. This generator
requires a charged attery to open the internal fuel lock-off solenoid to start.
The pull starter can only e used if a 12Vdc-1Amp minimum power source is
applied to the solenoid. We suggest leaving your generator’s attery plugged
into a smart-charger/trickle charger when not in use so it remains in a fully
charged state, or to start it and run it for a few hours every 2-3 months.
3. Side doors and battery co part ent door ust be latched shut. The
EU7000is engine draws in a com ination of air for com ustion through the
attery compartment door vents and from the pressurized enclosure ased on
the attery door’s design. If the attery door is removed or one or oth side
doors are open the generator will not operate correctly or cool correctly and
the tur ulent air inside the enclosure may lead to EFI over-control, especially
in ECO mode. Note in Honda Manual where a cutout is, in the top of the door,
for remote control and attery extension ca le access to ena le the door to
stay closed.
4. Do not atte pt to cold start loads greater than 75% of full load de-rated
for altitude. You can damage the engine and or load. Let the generator
warm up for 5 minutes efore applying full load on any fuel.
5. Change fuel selection switch only when the generator is turned off.
6. Do not replace your generator’s battery with a different brand or rating.
Lesser atteries have een found to have a much lower cold cranking a ility.
7. You ay need to add a secondary battery in parallel with the Honda
battery for cold starting below 15Deg F. The OEM attery may not have
enough cold cranking amps to turn over a cold soaked engine elow approx.
15degF. Store the generator indoors where its warmer or we recommend our
“GXA EU7000is Battery Extend Kit” that ena les you to connect an additional
car attery for starting. 0W-30 fully synthetic motor oil must e used for
extreme low temperatures along with Honda’s cold weather reather tu e kit.
8. This is a fully EFI controlled generator. There is no choke.
9. When possi le, turn the generator off y turning off the propane tank or
natural gas supply valve. This is a est practice for eing safe with all
propane/natural gas outdoor appliances.
10. We recommend that you always put the caps ack over the quick-disconnects
immediately after use to prevent contamination or water from entering the unit.
Tips before starting