Voltec Pro Pure Sine Wave Owner's Manual

Pure Sine Wave Power Inverter

OWNER’S MANUAL

Featured Design

• High efficiency- save batt ery

• Compact size- portable

• Low Idle Current

• Soft Start Technology

THIS MANUAL CONTAINS IMPORTANT INFORMATION REGARDING
SAFETY, OPERATION, MAINTENANCE AND STORAGE OF THIS
PRODUCT. BEFORE USE, READ AND UNDERSTAND ALL CAUTIONS,
WARNINGS, INSTRUCTIONS AND PRODUCT LABELS, PLUS YOUR
VEHICLE’S BATTERY MANUFACTURER GUIDELINES. FAILURE TO DO
SO COULD RESULT IN INJURY AND/OR PROPERTY DAMAGE.

IMPORTANT SAFETY INSTRUCTIONS

To ensure reliable service, your power inverter must be installed and used properly.
Please read the installation and operating instructions thoroughly prior to
installation and use. Pay particular attention to the WARNING and CAUTION
statements in this manual. The CAUTION statements advise against certain
conditions and practices that may result in damage to your inverter. The WARNING
statements identify conditions or practi ces that m ay result in personal injury. Read
All Instructions Before Using This Power Inverter!

WARNINGS:

TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, EXPLOSION OR INJURY:

1. Do not connect to AC distribution wiring. This inverter is NOT grid interactive.

2. Remove appliance plug from outlet strip or turn off inverter before working on t he
appliance. Multiple outlet power strips with switches and circuit breakers only
interrupt power to the “hot” receptacle terminals. The “neutral” terminals remain
powered with respect to the “ground” terminals.

3. Do not make any electrical connections or disconnections in areas designated
as IGNITION PROTECTED. This include s 12 V DC cigarette plug connections,
and terminal connections.

4. This is not a toy - keep away from children.

5. DO NOT install object into air vents.

CAUTIONS:

1. Do not use with positive ground electrical systems (the majority of modern
automobiles, RVs, trucks and boats are negative ground). Reverse polarity
connection will result in a blown fuse and may cause permanent damage to the
inverter.

2. This inverter will not operate high w atta ge appliances ov er the output pow er limit
or surge power limit.

3. Grounding the neutral will cause the inverter to shut down. Do not operate this
inverter if it is wet. Do not install in engine compartment – please install in a well
ventilated area.

4. This inverter is not tested for use with medical devices.

IMPORTANT CABLE INFORMATION

Substantial power loss and reduced battery operating time results from inverters
installed with cables that are not able to supply full power. Symptoms of low battery
power can result from cables that are either excessively long or an insufficient
gauge. The installer/operator should be especially aware of the requirements to
maintain secure

, tight, water-resistant electrical connections and to provide for
strain relief for DC cables and appliance wiring. Cable insulation must be the
appropriate type for the environment.

HOW YOUR INVERTER WORKS

The inverter converts low voltage DC (Direct Current) from a battery or other
power source to standard 115 volt AC (Alternating Current) household power.

PRINCIPLE OF OPERATION

The inverter converts power in two stages. The first stage is a DC to DC
conversion process that raises the low volt age DC at the inverter input to 150 volts
DC. The second stage is the actual inverter stage that converts the high voltage
DC into 115 volts, 60 Hz AC(rms). The DC-to-DC converter stage uses modern
high frequency power conversion techniques that have replaced the bulky
transf ormers found i n less technologically-advanced models. The inverter stage
uses advanced power MOSFET transistors in a high frequency full bridge
configuration.

THE OUTPUT WAVEFORM

The AC output waveform of the inverter is known as “Pure Sine Wave” or “True
Sine Wave”. It is a wavefo rm that ha s characte ristics same to the sine wave shape
of utility power. (See Figure 1).

FIGURE 1 : Pure Sine Wave Waveform

INSTALLATION / ENVIRONMENTS

POWER SOURCE REQUIREMENTS

The power source must prov ide between 10.5 and 15.5 volt s DC and must be able
to supply the necessary current to operate the load. The power source may be a
battery or a well-regulated DC power supply. To obtain a rough estimate of the
current (in amperes) the power source must deliver, simply divide the power
consumption of the load (in watts AC) by 10.

Example: lf a load is rated at 100 watts AC, the power source must be able to deliver: 100 /
10=10A

The inverter will provide you 115 V AC when powered by a 12 VDC source such as is
found in a vehicle or multiple battery configurations as shown in FIGURE 2. This
manual does not describe all of the possible ty pes of battery configurations, ba ttery
charging configurations and battery isolation configurations.

To properly operate the inverter the DC power source must provide between 11.0
and 15.0 VDC and nominally at 100 Amps. This DC power source must be a
well-regulated DC power supply as typically found in vehicular and deep-cycle
marine batteries. The DC power source may also be two 12 volt batteries connected
in parallel. On larger applications the power source may be several batteries
connected in parallel.

INSTALLATION NOTES:

WARNING: Keeping ventilation when using batteries. Batteries may generate

flammable gas during charging or discharging.

The inverter has four slots in its mounting bracket that allow the unit to be fastened
against a bulkhead, floor, wall or other flat surface. Ideally, the mounting surface
should be cool to the touch.

It is more electrically efficient to use longer AC wiring than DC wiring, so
install the inverter as close as possible to the 12 VDC powe r s ource.

The inverter can be operated in any position, however, if it is to be mounted on a
wall, mount it horizontally (#) so that indicators, switches, outlets and terminal
blocks located on the front panel are visible and accessible. If inverter is to be
installed in a moving vehicle, we strongly recommends that the inverter be
shock-mounted either on the floor (in a clear, safe area) or on a secure flat surface.
(#):

CAUTION: The power inverter must be connected only to batteries with a no minal
output voltage of 12volts. The unit will not operate from a 6 volt battery, and will
sustain permanent damage

if connec ted to a 24 volt battery.