AIMS Power PWRINV8KW12V User manual

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DC TO AC POWER INVERTER
PWRINV8KW12V
Instruction Manual

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Introduction
The AIMS Power inverter 8000 Watt inverter are the most advanced line of mobile DC to AC power
systems available. AIMS also offers the 10,000 Watt in 12V, or 12,000 Watt in 24V.
This model is used in a wide range of applications including back up power for remote
homes, off-grid systems, RVs, boats, commercial vehicles and mobile businesses. The
8000 Watt inverter will operate most pumps, motors, lights, heaters and hand tools.
To get the most out of the power inverter, it must be installed and used properly. Read
the instructions in this manual before installing and using this model.

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FUNCTIONS
FRONT VIEW
A. On/Off switch: Leave in the OFF position during installation.
B. Over temperature indicator: Lights when inverter protects itself against overheating. Inverter
shuts down while indicator is on. Inverter will restart automatically and indicator will turn off
when the inverter cools.
C. Over load indicator: Lights when inverter shuts down because of overload. Indicator will turn off
and inverter will restart when overload is removed.
D. Bar meters: Displays battery voltage and current. Current should be in the green zone for
continuous operation. The inverter will operate for several minutes when the current is in the
yellow zone. Operation with battery voltage or current in the red zone of a meter will result in
protective shutdown of inverter.
E. AC outlets: Maximum recommended output per outlet is 1500W.
F. Remote port: Used with remote switch to turn inverter ON/OFF (sold separately).
G. AC terminal block: Hard wire block providing inverter's full power.
E: AC outlets
D: Bar meters
B: Over temperature
indicator
A: On/Off
switch
C: Over load
indicator
G: AC terminal Block
F: Remote port

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REAR VIEW
A: Fan: Do not obstruct, allow at least l inch for air flow.
B: Battery terminals: Connect to 12V, or 24V, or 36V, or 48V (depending on inverter model) battery
(s) or other DC power source. "+" is positive & " - " is negative. Reverse polarity connection will blow
internal fuse and may damage inverter permanently. Make sure you check your input voltage and do
not REVERSE POLARITY! This will void the warranty.
C: Chassis ground lug: Connect to earth ground or to vehicle chassis using #8 AWG wire.
Warning! Operation of the inverter without a proper ground connection may result in an electrical
safety hazard.
QUICK HOOK-UP AND TESTING
If you would like to quickly hook-up the power inverter and check its performance before going ahead
with your installation, please follow these guidelines:
1. Unpack and inspect the power inverter, check to see that the power switch is in the OFF position.
2. Before you connect the battery cables, make sure the power switch is in the off position. Connect
Red (+) battery cable to Red (+) inverter terminal. Connect Black (-) battery cable to Black (-) inverter
terminal. Connect Red (+) battery cable to Red (+) battery terminal. Connect Black (-) battery cable to
Black (-) battery terminal. Alligator clamp cables may be used but only to connect to the battery. Do not
use clamps on inverter terminals. Alligator clamps are not a permanent solution. You may see a spark
during connection. Do not reverse the polarity. This may damage the inverter and void warranty.
Caution! Loosely tightened connectors result in excessive voltage drop and may cause overheated wires
and melted insulation. Reverse polarity connection will blow a fuse in inverter and may permanently
damage the inverter. Damage caused by reverse polarity connection is not covered by our warranty.
Warning! You may observe a spark when you make this connection since current may flow to charge
capacitors in the power inverter. Do not make this connection in the presence of flammable fumes, as
explosion or fire may result.
3. Set the power switch to the on position. Check the meters and indicators on the front panel
of the inverter. The voltage bar graph should indicate 11 to 14 volts depending on the voltage
of the power source. If it does not, check your power source and the connections to inverter.
A: Fan
B: Battery terminal (+)
B: Battery terminal (-)
C: Chassis grounding

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The other indicators should be off.
4. Set power inverter switch to the OFF position, the indicator lights may blink and the
internal alarm may sound momentarily. This is normal. Plug the test load into the AC
receptacle on the front panel of the inverter. Leave the test load switch off.
5. Set power inverter switch to the ON position and turn the testload on, the inverter should
supply power to the load. If youplan to measure the true output R.M.S. voltage of inverter, a
meter such as FLUKE 87A, BACKMAN 4410 or TRIPLETT 4200 must be used.
INSTALLATION
1. Where to install
The power inverter should be installed in a location that meets the following requirements:
a. Dry - Do not allow water to drip or splash onto the inverter.
b. Cool - Ambient air temperature should be between 0°C and 40°C, the cooler the better when
operating in this range
c. Ventilation - Allow at least one inch of clearance around the inverter for air flow. Ensure the
ventilation openings on the rear and bottom of the unit are not obstructed.
d. Safety - Do not install the inverter in the same compartment as batteries or in any compartment
capable of storing flammable liquids such as gasoline.
2. Cables
DC to AC inverters require high amperage/low voltage DC power to low amperage/high voltage AC
power. To operate properly, connect inverter DC input terminals direct to battery with heaviest wire
available see below:
12 Volt Model: 2 x set of 4/0 AWG (2 red + 2 black) and quantity 2- ANL500KIT-500 Amp fuse kits
Battery Cables Installation
When connecting the AC inverter to the battery terminals, it is important to connect the "+" wire to the
"+" terminal and the wire to the"-" wire to the “-“terminal. Do NOT reverse the polarity. It will void the
warranty. Make sure you connect negative to negative and positive to positive.
RED
BLACK
Red (+) * 2
Black (-) * 2

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Caution!
DO NOT allow the wires to cross or touch each other. Install the cables facing away from each other and
screw tightly. When connecting the battery cables to the terminals of the inverter, make sure they do
not touch the case.
3. Grounding
The power inverter has a lug on the rear panel marked "chassis ground" This is to connect the chassis of
the power inverter to the ground.
The ground terminals in the AC outlets on the front panel of the inverter are also connected to the
ground lug.
The chassis ground lug must be connected to a grounding point, which will vary depending on where the
power inverter is installed. In a vehicle, connect the chassis ground to the chassis of the vehicle. In a
boat, connect to the boat's grounding systems in a fixed location, connect the chassis ground lug to an
earth point, which will vary depending on where the power inverter is installed.
The neutral (common)conductor of the power inverter AC output circuit is connected to the chassis
ground. Therefore, when the chassis is connected to ground, the neutral conductor will also be
grounded.
This conforms to national electrical code requirements that separately derived AC sources (such as
inverters and generators) have their neutral tied to ground in the same way that the neutral conductor
from the utility line is tied to ground at the AC breaker panel.
Caution! The Negative DC input of the power inverter is connected to the chassis. DO not install the
power inverter in a positive ground DC system. A positive ground DC system has the positive terminal of
the battery connected to the chassis of the vehicle or to the grounding point.
Warning! Do not operate the power inverter without connecting it to ground. Electrical shock hazard
may result.
OPERATION
To operate the power inverter, turn it on using the ON/OFF switch on the front panel. The power
inverter is now ready to deliver AC power to your loads. If you are operating several loads from the
power inverter, turn on separately after the inverter has been turned on. This will ensure that the power
inverter does not deliver starting currents to all of the loads at once.
1. Controls and indicators
The ON/OFF switch turns the control circuit in the power inverter on and off. It does not disconnect
power from the power inverter.
When the switch is in the OFF position, the power inverter draws no current from battery. When the
switch is in the ON position but with no load, the power inverter draws less than 450 mA.
2. Battery voltage indicator

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The battery voltage bar graph indicates the voltage at the input terminals of the power inverter. At low
input current, this voltage is very close to the battery voltage. At high input current, this voltage will be
lower than the battery voltage because of the voltage drop across the cable and connections.
Ideally, the voltage should remain in the green area of the bar graph. If the voltage goes into the red
area at top or bottom of the graph, inverter may shut-down.
3. Battery current indicator
The battery current bar graph indicates the current drawn from the battery by the power inverter, it will
not indicate current by other loads also connected to the battery. The indicator only displays DC volts
and amps.
For long term operation, the current should be in the green area of the bar graph. Short term operation
is possible with current in the orange area. If the current rises to the red area, the inverter will reduce its
output voltage to protect itself.
To measure AC current, use a TRUE RMS MULTI METER.
4. Over temp indicator
The over temp indicator indicates that the power inverter has shut itself down because it has become
overheated. The power inverter may overheat because it has been operated at power levels above its
rating, or because it has been installed in a location which does not allow it to dissipate heat properly.
5. Over load indicator
The over load indicator indicates that the power inverter has shut itself down because its output circuit
has been short circuited or drastically overloaded. Switch the ON/OFF to OFF, correct the fault
condition, and then switch the ON/OFF back to ON.
THINGS TO CONSIDER REGARDING THE LOAD
The 8000W inverter will operate most AC loads within its power rating. When determining whether a
microwave oven can be operated by the 8000W inverter, remember that the power commonly
advertised for microwave ovens is the cooking power (the power delivered to the food) not the power
actually consumed by the microwave oven. The microwave oven will consume 40% to 100% more than
its advertised cooking power. Check the rating sticker on the back of the oven to determine its actual
power draw. The 8000W inverter will operate small microwave ovens (0.2 to 0.3 cubic foot capacity)
that draw is about 1700 watts.
Some induction motors used in refrigerators, freezers, pumps, and other motor operated equipment
require very high surge currents to start. The power inverter may not be able to start some of these
appliances even though their rated current draw is within the rating of the power inverter.
If a motor refuses to start, observe the battery voltage indicator while trying to start the motor. If the
battery voltage indicator drops below 10.5V DC while inverter is attempting to start the motor, this may
be why the motor won't start.

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Make sure that the battery connections are good and that the battery is fully charged. If the connections
are good and the battery to is charged, but the voltage still drops below 11 volts, you may need a larger
battery or larger battery bank.
(*2 for 24V *3 for 36V *4 for 48V)
INPUT VOLTAGE
The power inverter will operate from input voltage ranging from 10V-16V. If the voltage drops below
input range, an audible low battery warning will sound and the voltage indicator will be in the lower red
zone. The power inverter will shut down if the input voltage drops below 10V +/- .5V. This protects your
battery from being over discharged.
The power inverter will also shut down if the input voltage exceeds 17V +\-.5V. This protects the
inverter against excessive input voltage.
The voltage indicator will be in the upper red zone. Although the power inverter incorporates protection
against over voltage, the inverter is at risk of permanent damage if the input voltage is allowed to
exceed 17V +\-.5V.
TROUBLESHOOTING
1.Common problems
a. Buzz in audio systems:
Some inexpensive stereo systems and radios will emit a buzzing noise from their loudspeakers when
operated from the power inverter. This is because the power supply in the device does not adequately
filter the modified sine wave produced by the power inverter. The only solution is to use a sound system
that incorporates a higher quality power supply.
b. Television interference:
Operation of the power inverter can interfere with television reception on some channels. If this
situation occurs, the following steps may help to alleviate the problem.
-Make sure that the chassis ground lug on the back of the power inverter is solidly connected to the
ground system of your vehicle, boat or home.
-Do not operate high power loads with the power inverter while watching television.
-Move the television as far away from the power inverter as possible.
-Keep the cables between the battery and the power inverter as short as possible and twist them
together with about 2 to 3 twists per foot. This minimizes radiated interference from the cables.

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ProblemandSymptoms
Possible Cause
Solution
Low output voltage
If using a non-RMS meter you could
cause incorrect reading of 10-30V
Use a true RMS meter
Low output voltage and current
indicator in red zone
Overload
Reduce load
No output voltage and voltage
indicator in lower red zone
Low input voltage
Recharge battery. Check cable
connection.
No output voltage, no voltage
indication.
Inverter switched off.
No power to the inverter.
Internal fuse open.
Reverse polarity.
Turn power switch to on position.
Check wiring to the inverter.
Check polarity.
No output voltage. Voltage in upper
red zone.
High input voltage.
Make sure inverter is plugged to
correct DC voltage. Check voltage
charging system.
Low battery alarm on all of the time.
Indicator below 11V.
Poor DC wiring, poor battery
conditions.
Use proper cable and make proper
connection. Consider new battery.
No output voltage. Over heat
indicator on. Load >8000 W.
Thermal shutdown.
Improve ventilation and make sure
openings in the inverter are not
obstructed. Reduce ambient temp.
No output voltage. Over load
indicator on.
Short circuit or wiring error.
AC load too large.
Check AC wiring for short circuit or
improper polarity. Remove load.

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SPECIFICATIONS
MODEL NO
PWRINV8KW12V
DC Input Voltage
12V (10-16V)
Output Wave Form
Modified Sine Wave
Output Power
8000W
Surge Power Capacity
16,000W for 40milsecs
Efficiency
Over 90%
No Load Current
<1.5A
Fan
Thermal
Battery Low Alarm
D C 10 . 5
+
_
0 . 5 V
Battery Low Shutdown
D C 9 . 5
+
_
0 . 5 V
High Voltage Shutdown
17V
+
_
0 . 5 V
Operating Temperature
(Automatic Recovery/Shutdown)
30-140° F
Internal DC Input Fuse
Must be fitted use 40A*8 max
Mounting Hole Location
2.32” center hole to center hole * 2
Remote Switch Port
Yes
Direct Connect Terminal Block
Yes
Recommended Cable Size
2 sets of 4/0 AWG
Outlets
4
Power Switch
DC input ON/OFF control
Dimensions (LxWxH)
19” x 7.8” x 6.13”
Net Weight
19.8 lb

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AIMS Corp., Inc. dba AIMS Power Warranty Instructions:
This product is designed using the most modern digital technology and under very strict quality control
and testing guidelines. If, however, you feel this product is not performing as it should, please contact us:
[email protected] or [phone]
We will do our best to resolve your concerns. If the product needs repair or replacement, make sure to
keep your receipt/invoice, as that will need to be sent back along with the package and RMA# prepaid to
AIMS. You have a full 1 year warranty from date of purchase.
This warranty is valid worldwide with the exception that freight and duty charges incurred outside the
contiguous 48 United States will be prepaid by customer.
Except as provided above, AIMS makes no warranty of any kind, express or implied, including without
limitation the implied warranties of merchantability and fitness for a particular purpose. In no event shall
AIMS be liable for indirect, special or consequential damages. This warranty only applies to AIMS Power
branded products. All other name brand products are warranted by and according to their respective
manufacturer. Please do not attempt to return non-AIMS Power branded products to AIMS Power.
For additional products such as:
-Modified sine wave inverters
-Pure sine wave inverters
-Low Frequency Inverters
-Solar Charge Controllers
-Micro Grid Tied Inverters
-Inverter Chargers and Automatic transfer switches
-Converters DC-DC
-Custom cut cables
-Batteries
-Solar Panels & Racks
Please visit our web site: www.aimscorp.net
To find out where to buy any of our products, you may also e-mail: [email protected] or call [phone].

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