Vector MAXX SST 1000 VEC049, MAXX SST 1000, VEC049 Owner's Manual

VEC049

FRONT

4140 S.W. 28TH WAY • FT. LAUDERDALE, FL 33312

TEL [phone] • FAX [phone]

TOLL-FREE: [phone]

OWNER’S MANUAL

THIS MANUAL CONTAINS IMPORTANT INFORMATION REGARDING SAFETY, OPERATION,

MAINTENANCE AND STORAGE OF THIS PRODUCT. TO AVOID POSSIBLE INJURY OR PROPERTY

DAMAGE, PLEASE READ THIS INSTRUCTION MANUAL CAREFULLY BEFORE USING THIS PRODUCT.

MAXX SSTTM1000

POWER INVERTER

1000 WATT CONTINUOUS / 2000 WATT PEAK

CONVERTS 12 VOLT DC TO 110 VOLT AC

ADVANCED

MOSFET

TECHNOLOGY

© 2002 VECTOR MANUFACTURING, Ltd.

4140 S.W. 28TH WAY • FT. LAUDERDALE, FL 33312

REV.110802

IMPORTANT SAFETY INFORMATION

To ensure reliable ser vice, your power inver ter 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 practices that
may result in personal injury.

READ ALL INSTRUCTIONS BEFORE USING THIS POWER INVERTER

WARNINGS

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

• Do not connect to AC distribution wiring

• Remove appliance plug from outlet strip or turn off inverter before
working on the appliance

• DO NOT locate inverters in an area, room or compartment where
explosive or flammable fumes might be present

• When using multiple outlet power strips with switches and circuit
breakers ,they only interrupt power to the “hot” receptacle terminals.
The “neutral” terminals remain powered with respect to the “ground”
terminals

• Unplug appliances when servicing

• This is not a toy - keep away from children

CAUTIONS

• NO USER-SERVICEABLE COMPONENTS INSIDE OPENING UNIT
WILL VOID WARRANTY

• 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 may cause
permanent damage to the inverter and will void the warranty

• This inverter will not operate appliances or equipment that exceed
inverters maximum rating

• 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 - install in a well ventilated area

• Not approved for use in conjunction with medical equipment

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, electrical
connections. Cable insulation and ampacity must be the appropriate type for
the environment. If you want to purchase a prepared cable and fuse set
contact Technical Support at [phone] or toll-free at
[phone], extention 119.

The customer is responsible for the shipping charges on all returned items.
During the warranty period, Vector Manufacturing, Ltd. will be responsible
for the return shipping charges.

LIMITATIONS: This warranty does not cover accessories, bulbs, fuses and
batteries, defects resulting from normal wear and tear (including chips,
scratches, abrasions, discoloration or fading due to usage or exposure to
sunlight), accidents, damage during shipping to our service facility, alter­ations, unauthorized use or repair, neglect, misuse, abuse, failure to follow
instructions for care and maintenance, fire, flood and acts of God.

If your problem is not covered by this warranty, call our Technical Support
Department at [phone] Ext. 119 or toll-free [phone] for
general repair information and charges if applicable.

STATE LAW RIGHTS: This warranty gives you specific legal rights. Some
states do not allow limitations on how long an implied warranty lasts or the
exclusion or limitation of incidental or consequential damages, so the
exclusions or imitations stated herein may not apply. This warranty gives
the purchaser specific legal rights. Other rights, which vary from state to
state, may apply.

TO REQUEST WARRANTY SERVICE FOR THIS PRODUCT: Contact Vector
Manufacturing Technical Support by telephone, fax or mail. We suggest
that you keep the original packaging in case you need to ship the unit.
When returning a product, include your name, address, phone number,
dated sales receipt (or copy), and a description of the reason for return
and product serial number. After replacing the unit, we will attempt to
return it to you within four weeks.

WARRANTY ACTIVATION: Please complete Warranty Activation Card
and mail to Vector Manufacturing. Enter “VEC049” as Model and Power
Inverter as “Product Type”. All Vector Manufacturing, Ltd. products must be
registered within (30) days of purchase. To activate this warranty, mail
completed form, a copy of the original sales receipt to:

WARRANTY REGISTRATION
VECTOR MANUFACTURING, Ltd.
4140 S.W. 28th Way;
Fort Lauderdale, Florida 33312

CONTENTS

1.0 INTRODUCTION

1. Basic Tour of Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.1 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

1.2 Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

1.2 Maxx SST 1000 Safety Features . . . . . . . . . . . . . . . . . . .3

1.3 Appliance Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

2.0 INVERTER APPLICATIONS

2.1 Uninterruptible Power Supply (UPS) . . . . . . . . . . . . . . . . .5

3.0 THEORY OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . .6, 7

4.0 OPERATION

4.1 Power Requirements . . . . . . . . . . . . . . . . . . . . . . .8, 9, 10

4.2 Determining Battery Size . . . . . . . . . . . . . . . . . . . . . . . .10

4.3 Battery Operating Time . . . . . . . . . . . . . . . . . . . . . . . .11

4.4 Protective Features . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

5.0 INSTALLATION

5.1 Input Power Requirements . . . . . . . . . . . . . . . . . . . . . . .13

5.2 Operating Environment . . . . . . . . . . . . . . . . . . . . . .14, 15

5.3 Installation Sequence . . . . . . . . . . . . . . . . . . . . . . . . . .15

5.4 Quick Operational Checkout . . . . . . . . . . . . . . . . . .15, 16

5.5 Permanent Installation . . . . . . . . . . . . . . . . . . . . . . . . . .16

5.5.1 Preparation for Permanent Installation . . . . . . .16, 17

5.5.2 Permanent Installation Procedures . . . . . . . . . .18, 19

6.0

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

7.0 SERVICE AND REPLACEMENT PARTS . . . . . . . . . . . . . . . . . .19

8.0 TROUBLESHOOTING

8.1 Common Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

8.2 Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . .21

9.0 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

10.0 WARRANTIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22, 23

23

1.0 INTRODUCTION

Your new Vector MAXX SST 1000 inverter is one in a series of the most
advanced DC to AC inverters available. With proper care and appro­priate usage, it will give you years of dependable service in your car,
truck, RV or boat.

The MAXX SST 1000 supplies 1000 watts of continuous power, with a
2000 watt peak, in the form of three household-type outlets that are ready
to deliver 110 volt AC power whenever and wherever you need it! The
heavy-duty inverter has enough power to run most household or electronic
appliances. Added safety features include automatic shutdown and a low
battery alarm to prevent damage to your batter y.

This Power Inverter is configured with the latest Soft Start Technology (SST).
Before introduction of Soft-Start, high startup currents from large inductive
loads could shut down the inverter. Soft Start improves inverter operation.
Three major features incorporated in SST include: First, gradual voltage
ramp-up during inverter startup. This eliminates failed cold starts under
load. Second, output that momentarily dips in voltage and quickly recovers
to allow large motorized loads to start. This eliminates almost all shut­downs from momentary overloads.

This power inverter also incorporates a new cooling technology that
directly benefits our customers. The new design more efficiently cools the
power transistors, and combined with Soft Start, dramatically increases
reliability and the life of the product.

1.1 BASIC TOUR OF THE MAXX SST™ 1000 MODEL INVERTER

AC power is supplied via three standard North American grounded,
household-type receptacles (U-ground) as shown in FIGURE 1. This allows
the connection and operation of most 110 VAC-powered electrical and
electronic appliances that use a standard plug.
The rest of the front panel items are:
One combined over-temperature and overload LED. If this lights, the
inverter will automatically shut down.
One green LED that lights when the inverter is operating.
One ON/OFF switch that shuts off the AC output and all inverter functions.

The ON/OFF switch is also used to reset the inverter after shut down due
to overload or over-temperature condition.

FIGURE 2 shows the back panel DC connectors and fan locations. Note
that the fan only operates when the inverter’s load requires it to operate. It
shuts off when cooling is not required.

9.0 MAINTENANCE

The inverters require minimal maintenance. However, for optimum perform­ance, perform the following as required.

1. Turn off the inverter using the front panel on/off switch.

2. Disconnect the inverter by removing the DC power fuse.

3. Check and tighten all electrical connections including the ground.

4. Using a non-metallic vacuum cleaner hose, vacuum the fan area
and other air slots.

5. Clean any dirt and dust from the outside of the unit with a damp cloth.

6. Reconnect the fuse and resume operation

10. WARRANTY

VECTOR 2 YEAR LIMITED WARRANTY PROGRAM
This limited warranty program is the only one that applies to this product,
and it sets forth all the responsibilities of Vector Manufacturing, Ltd.,
regarding this product. There is no other warranty other than those
described herein.

This Vector Manufacturing, Ltd. product is warranted, to the original
purchaser only, to be free of defects in materials and workmanship for two
years from the date of purchase without additional charge. The warranty
does not extend to subsequent purchasers or users. Vector Manufacturing,
Ltd. will not be responsible for any amount of damage in excess of the retail
purchase price of the product under any circumstances. Incidental and
consequential damages are specifically excluded from coverage under this
warranty.

This product is not intended for commercial use. This warranty does not
apply to accessories or damage to units from misuse or incorrect installa­tion. Misuse includes wiring or connecting to improper polarity power
sources.

RETURN/REPAIR POLICY: Defective products, other than accessories, may
be returned postage prepaid to Vector Manufacturing. Any defective
product, other than accessories, that is returned to Vector Manufacturing
within 30 days of the date of purchase will be replaced free of charge. If
such a product is returned more than 30 days but less than two years from
the purchase date, Vector Manufacturing will repair the unit or, at its
option, replace it free of charge.

If the unit is repaired, new or reconditioned replacement parts may be
used, at Vector Manufacturing’s option. A unit may be replaced with a new
or reconditioned unit of the same or comparable design. The repaired or
replaced unit will then be warranted under the terms of the remainder of
the warranty period.

221

8.2 TROUBLESHOOTING GUIDE

TROUBLE/ INDICATION POSSIBLE CAUSE SUGGESTED REMEDY

No AC output – DC input below 10 Volts Recharge or replace
red LED lit battery

No AC output – Excessive appliance Reduce load-wait for
red LED lit load-thermal shutdown inverter to cool. Turn Off

Low battery alarm Bad connection or wiring Tighten all DC
sounds continuously connections

Low battery Low battery voltage Recharge battery
alarm sounds Remove load from

inverter while recharging
battery

Motorized power tool Excessive start-up load Rock the On/Off switch
won’t start several times. If appliance

does not start, then
appliance will not work
with inverter

Motorized power tool Purely inductive load Make the load not purely
does not operate at inductive. Operate an
correct speed incandescent lamp at

same time as motor

Television/Radio Snow in picture, buzz Keep inverter and
interference in speaker antenna distant from

each other. Use shielded
antenna cable. Connect
antenna to amplifier and
ground inverter case

FIGURE 1 – FRONT PANEL

FIGURE 2 – BACK PANEL

1) DUAL HIGH SPEED COOLING FANS

2) BLACK NEGATIVE (–) TERMINAL AND RETAINING NUT

3) RED POSITIVE (+) TERMINAL AND RETAINING NUT

4) TERMINAL COVER

1) THREE NORTH AMERICAN
STANDARD OUTLETS

2) GREEN LED SHOWS UNIT
IS OPERATING

3) RED LED SHOWS UNIT IS
SHUT DOWN

4) ON/OFF SWITCH

221

1

4

3

2

1

3

4

2

1.2 MAXX SST 1000 SAFETY FEATURES

BUILT-IN SAFETY FEATURES INCLUDE:

• Automatic overload and over-temperature shutdown activated
if AC output exceeds 1000 watts.

• Automatic AC short-circuit shutdown and automatic reset

• Automatic low voltage audible alarm and reset

(sounds at 10.6 volts input)

• Automatic low-voltage shutdown and automatic reset
(activates at 10.0 volts DC)

• Automatic high-input voltage shutdown (activates at above

14.7 volts DC) and automatic reset

WARNING: MAXXSST™ 1000 output should be treated with the
same caution as any 110 volt AC circuit. It is very important that
anyone who is installing or using the inverter read and follow all
instructions provided in this manual to ensure optimum safety and
performance.

MAXX SST™ 1000 inverters are ideal for powering:

• TV/VCR combinations

• Refrigerator/Freezers

• Lights

• Radio receivers/Transceivers

• Heavy duty power tools & chargers

• Stereo systems

• Microwave ovens

• Household appliances

• Computers and peripheral equipment

• Dry and/or wet-and-dry vacuums

• Sump pumps, motors and other electric-powered equipment

• Air compressors and much more

MAXX SST™ 1000 Models use a 12 VDC power source like those found
in 12 VDC motor vehicles or it can be operated using multiple battery config­urations with commercial batter y chargers or solar battery chargers. For
most heavy-duty applications, a multiple battery configuration and the use
of deep-cycle batteries is a requirement.
With installations using multiple batteries, inverters can be operated from
one of the vehicle 12 volt batteries, so there’s always one battery with
adequate charge to start an engine.
Other features include a high-surge capability (up to 2,000 watts), which
is required to start heavy loads such as motors and other inductive devices.

8.0 TROUBLESHOOTING

8.1 COMMON PROBLEMS:

POWER TOOLS AND MICROWAVE OVENS WON’T START

Read the information panel on each power tool carefully to accurately
determine the tool’s input wattage. The wattage output is sufficient to
operate most power tools and microwave ovens but remember that the
power needed to start the power tool may be as much as 2 to 6 times its
continuous wattage requirements.

"BUZZING" SOUND IN AUDIO SYSTEMS AND/OR SNOW IN TVS
Inverters are shielded to minimize interference with TV signals. Ensure that
the TV antenna provides an adequate "snow free" signal and that the
antenna cable is high quality and shielded without the inverter operating.
The problem may not be with the inverter. However, in some cases, some
interference may be visible, particularly with weak TV signals. Try the
following corrective measures:

• Position the TV and antenna further away from the inver ter if it is the
cause of interference.. Adjust the antenna, or use commercial cable
hookup (if possible) for best results

• Do not operate high-power appliances or tools when you are watching TV

• Make sure inverter's case is properly grounded as described in section 5.5.2

item 16

INVERTER SHUTS DOWN OR BATTERY FUSE OPENS
Inverter will continuously deliver 12 watt or up to 10.8 amps of AC power

for approximately 3 minutes and will deliver up to 2000 watt peak. After
which, the inverter may shut itself down or the battery fuse will open due
to overload or excessive load demand on start-up. Replace battery fuse, if
opened. Reduce the load on the inverter to its maximum rated output
power. Allow the inverter to cool for at least 15 minutes before attempting
to start or run a high current draw device.

203

17. Check to ensure that all electrical connections are tight.

18. Ensure that the inverter’s ON/OFF switch is OFF.

19. Insert the fuse into the fuse holder. There may be some sparking.

20. Turn ON the inverter and apply a test load to the AC outlets.

21. Check all connections and tighten any loose connections.

22. Ensure that the battery has an adequate charge. If voltage is low, the
cables may be too long or the gauge too light.

23. If steps 21 and 22 do not correct the problem, contact Vector
Technical Support Depar tment [phone] Ext. 119 for
professional direction.

6.0 SPECIFICATIONS

Maximum Continuous Power . . . . . . . . . . .1000 Watts

Surge Capacity (Peak Power) . . . . . . . . . . .2000 Watts

No Load Current Draw (switch on) . . . . . . .0.6 amperes

Max. Efficiency . . . . . . . . . . . . . . Approximately 90%

Input Voltage . . . . . . . . . . . . . . . . . . .10.5–14.7 VDC

Output Voltage . . . . . . . . . . . . . . . . .110 VAC 60 Hz

Low Voltage Alarm . . . . . . . . . . . . . . . . . . .10.6 Volts

Low Voltage Shutdown . . . . . . . . .10.0 Volts Auto Reset

Thermal Shutdown . . . . . . . . . . . . . . . . . . .Auto Reset

Wave Form . . . . . . . . . . .Modified Sine Wave (MSW)

Output Receptacles . . . . . . . . . . . . . . .Three U-ground

. . . . . . . . . . . . . . . . . . . . .North American standard

Power Transistor Type . . . . . . . . . . . .Siemens MOSFET

Weight . . . . . . . . . . . . . . . . . . . . . .9.26 lbs. (4.2 kg)

Length . . . . . . . . . . . . . . . . . . . .16.14 in. (37.0 cm)

Width . . . . . . . . . . . . . . . . . . . . . . . .9.5 in. (24 cm)

Height . . . . . . . . . . . . . . . . . . . . . . . . .3.3 in. (8 cm)

7.0 SER

VICE & PARTS

For service on the inverters, contact the Technical Support Department at:

Vector™Manufacturing, Ltd
4140 S.W. 28th Way • Ft. Lauderdale, Florida 33312
Tel. [phone] Ext. 119 • Fax [phone]

• Toll-free: [phone]

1.3 APPLIANCE CAUTIONS

DO NOT plug small appliances into the inverter receptacles to directly

recharge their nickel-cadmium batteries. Always use the recharger provided
with that appliance.
DO NOT plug in battery chargers for cordless power tools if the charger
carries a warning that dangerous voltages are present at the battery terminals.
Not all fluorescent lamps operate properly with this type of inverter. If the bulb
appears to be too bright, or fails to light, do not use the lamp with this inverter.
Some fans with synchronous motors may slightly increase in speed (RPM) when
powered by the inverter. This is not harmful to the fan or to the inverter.
Certain rechargers for small nickel-cadmium batteries can be damaged if
plugged into the inverters. In particular, two types of appliances are susceptible
to damage:

• Small, battery-operated appliances such as flashlights, cordless razors and
tooth brushes that can be plugged directly into an AC receptacle to recharge

• Certain batter y chargers for battery packs that are used in some cordless
hand-tools. Chargers for these tools have a warning label stating that
dangerous voltages are present at the battery terminals

DO NOT use inverters with the above two types of equipment.
The majority of portable appliances do not have this problem. Most portable
appliances use separate transformers or chargers that plug into AC receptacles
to supply a low-voltage DC or AC output to the appliance. If the appliance label
states that the charger or adapter produces a low-voltage DC or AC output (30
volts or less), there should be no problem powering that charger or adapter.

419

2.0 INVERTER APPLICATIONS

Aside from issues of supplying power to higher wattage appliances,
inverters must be supplied with a constant source of high current12 volt
DC from a bank of batteries. At full 1000 watt load, the DC input require­ments are up to 100 amperes at 12 volts DC.
Read the following applications and comply with them, and your inverter
will give you years of reliable service.

2.1 UNINTERRUPTIBLE POWER SUPPLY (UPS)

Inverters can be operated as uninterruptible power supplies that continu­ously provide AC even if outside AC is interrupted. This type of application
continuously operates the inverter from a battery bank, simultaneously
replacing the charge on the battery bank with an AC-powered 12 Volt
battery charger. Charging can also be by means of a solar charger
system. See FIGURE 3. The charger must be selected to operate continu­ously and to be able to fully replace the charge on the battery as the
inverter operates. In this configuration, the battery "floats" on the DC from
the charger, not really supplying power or being charged. When outside
AC fails, the inverter continues to power the appliances for the life of the
useful charge on the battery bank. When outside AC is restored, the
batteries are recharged as the inverter continues to operate. Battery
recharging must be sized to replace the average current supplied by the
inverter plus a little more current. Another requirement is that the battery
charging rate cannot exceed 10% of the rated Ampere Hour (AH) rating
of the battery bank, otherwise the life of the batteries can be dramatically
reduced through overcharging. Most modern battery chargers automati­cally adjust the charging rate based on the state of charge on the batteries
they are charging. For this type of operation, use deep-cycle batteries and
avoid charging at too fast a rate.

Figure 3 – Uninterruptible Power Supply

UNRELIABLE

EXTERNAL AC

SOURCE

12 VOL T

BATTERY

CHARGER

12 VOL T

BANK OF

BATTERIES

MAXX 1000

POWER

INVERTER

LIGHTS, TV

ETC.

THREE AC

OUTLETS

WARNING: Never connect the inverter’s AC output to an
AC distribution system.

This procedure is for using locally purchased supplies.
Make appropriate changes to procedure if Vector Cable Set is
purchased .

5.5.2 PERMANENT INSTALLATION PROCEDURES

The cables between the power source and the inverter should be as shown
in FIGURE 7. Be sure to r emove terminal cover and terminal nuts before
starting permanent installation.
Inverter DC cables and fuse installation is as follows:

1. Using tools and hardware, mount the inverter to the flat surface that

you have selected .

2. Mount the fuse holder to its mounting surface using appropriate hard-

ware. Ensure that the mounting hardware does not touch any of the fuse
holder contacts or fuse contacts. Ensure that the fuse is removed from its
holder.

3. Measure the cable twice before marking the cable for cutting.

4. Cut one cable length to fit between the negative (–) connection power

source and the inverter’s negative terminal, leaving a little slack in the
cable.

5. Cut the remaining length of cable to be able to connect from the posi-

tive (+) battery terminal to one side of the fuse holder, leaving a little
slack.

6. Cut the remaining length of cable to connect the other side of the fuse

holder to the positive (+) terminal on the back panel of the inverter.

7. Strip the insulation to 1-inch (2.45 cm) from the ends of each of the three

cables.

8. Crimp on or, sweat-solder the copper strands at the ends of the appro-

priate cables to ring terminals. For safety reasons, do this in an open
space because it may require the use of a propane torch.

9. Crimp or clamp on a heavy-duty, battery-connection terminal to the other

end of the negative (–) and positive (+) cable. Connect the negative (–)
cable battery terminal to the negative (–) batter y terminal connector.

10. Ensure that the inverter power switch is in the OFF position (SEE FIGURE 1).

11.

Connect the ring terminal end of the negative (–) cable into the black stud
marked (–) on the inverter back panel and tighten the retaining nut on this
terminal.

12. Connect the battery connector to the negative (–) battery terminal.

13. Connect the ring terminal end of the positive (+) cable into the red stud

marked (+) on the inverter’s back panel (See FIGURE 2) and tighten the
retaining nut on the terminal.

14. Connect the other end of the (+) positive cable to one terminal of the

heavy-duty fuse holder.

15. Connect the other conductor of the heavy-duty fuse holder to the

positive (+) battery terminal.

16. Connect an insulated wire (at least #12 AWG) between the grounding

screw on the inverter’s case and a solid electrical ground to minimize
possible electrical noise generation in TVs and radios. Also connect a
grounding wire to the terminal attached to the inverter’s enclosure. Do
NOT connect this wire to the negative DC input terminal.

185

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, Vector strongly
recommends that the inverter be shock-mounted either on the floor (in a
clear, safe area) or on a secure flat surface. Look for a convenient place
to mount inverter and the fuse holder. Take the length of cable and do a
trial routing of the cable. Don’t do any cutting at this time. Take a look at
FIGURE 7. Measure the cable path and ensure that either the positive cable
run to the battery or negative cable run to the battery does not exceed 4
feet. Using #4 AWG reposition the inverter and fuse holder if necessar y.
Remember and observe the other environmental requirements described
earlier.
After you have selected an appropriate location for the inverter and fuse
block, proceed with the actual installation of the inverter.
Contact Vector™Manufacturing for any further installation information or
questions. You can purchase fuses, fuse holders, #4 AWG cable or cable
battery connectors from your local electrical supplier or call Vector
Technical Support at [phone] Ext. 119 for advice.

Common unattended applications for the UPS (floating battery) configura­tions are for powering: sump pumps, safety lighting, communications
equipment, burglar alarm systems and computer systems.

3.0 THEORY OF OPERATION

MAXX SST™ inverters change 12 VDC into 110 V AC (110 VAC RMS), elec­trical power. This is accomplished in two steps. See FIGURE 4.
The first stage raises the 12 VDC input to 145 VDC. The advanced
design of the DC-to-DC first stage uses modern high-frequency conversion
techniques that replace bulky and heavy transformers found in older, less
technologically-advanced inverters. The output stage changes the 145-VDC
to 110 VAC. This solid-state circuitr y ensures excellent overload protection
and the ability to operate reactive loads such as those found in inductive
motors and most fluorescent lamps. The inverter’s output stage uses multiple
banks of metal-oxide semiconductor field-effect transistors (MOSFETS). This
stage functions as a high-power bipolar switch, alternately applying oppo­site polarity to the AC outlet HOT and NEUTRAL terminals.

Figure 4 Simplified Diagram

• Some Models only include volt, Amp and over temp indicators.

Neutral

100 AMP

TERMINAL

BLOCK

DC to DC

CONVERTER

INTERNAL WARNINGS &

PROTECTION CIRCUITS

VOLT, AMP METERS*

OVER TEMP &

VOLT INDICATORS

ON/OFF

SWITCH

#4 AWG

WIRE

#4 AWG

WIRE

#4 AWG

WIRE

200

AMP

FUSE

Hot

145 VDO

Ground

VEC049

12 VOLT DC

INPUT FROM

BATTERY

THREE

OUTLETS

MOSFET

BIPOLAR

SWITCH

BANKS

+

+

–

–

NOTE: Cables, Fuse and
Battery Are Supplied By User

617

The 110 VAC output of the inverter is in the form of a modified sine wave
(MSW) as shown in FIGURE 5. This type of waveform has the same energy
characteristics as the sine wave of commercial electrical power. The modi­fied sine wave is superior to the 100% square wave output (not shown)
produced by most other DC-to-AC inverters on the market.
A modified sine wave, as compared to a square wave, is vital to the effi­cient and proper operation of certain appliances such as computers, TVs,
and certain electronic equipment.

Figure 5– Modified Square Wave and Sine Wave Comparison

NOTE: The 110 VAC output is a modified sine wave that produces 115 V
AC Voltage. Because of wave-shape differences, if you measure the output
of the inverter using standard digital or analog voltmeters, these instru­ments may not correctly read the voltage. Unless a true RMS reading
voltmeter such as a "Fluke 87", "Fluke 8060A", "Beckman 4410" or "Triplet
4200" is used, the reading will be from 2 to 20 volts low.

3. Using the set of heavy-duty jumper cables, attach one red cable clamp

to the (+) terminal bolt and one black cable clamp on the (–) terminal bolt.

4. Connect the clamps on the other ends of the jumper cables to the

corresponding positive (+) and negative (–) terminals on the12-volt DC
vehicle battery. There may be some minor sparking observed.

5. Turn the inver ter power switch ON.

6. Plug in a lamp with a 100-watt light bulb and switch the lamp ON. If

the lamp works normally, the inverter is functioning properly and you
can proceed to a permanent installation or continue to use the inverter
with low wattage appliances. If the lamp does not light or does not
work correctly:

A. Check all connections and tighten any loose connections.
B. Ensure that the source battery has adequate charge.
C. If steps A through B do not correct the problem, contact Vector

Customer Service Department [phone] ext. 119 for

professional direction.
NOTE: Any appliance or tool used for this type of test or emergency
operation must be designed for 110 VAC (115-VAC RMS), 60-Her tz (Hz)
and have a power consumption of 600 watts or less. The jumper cables
are not designed for operating the inverter at full power. They are too long
and the voltage drop is excessive.

5.5 PERMANENT INSTALLATION

5.5.1 PREPARATION FOR PERMANENT INSTALLATION

For permanent installation to heavy-duty battery power you will need:

• Ring terminals to fit cable ends and stud terminals

• Hardware to connect two #4 AWG cables to the batter y bank

• A single length of not more than four feet of #4 AWG

multi-stranded, flexible, insulated cable

• A 200 ampere low voltage fuse holder and fuse (slow blow type
or use an ANL-200) fuse and appropriate fuse holder

• Mounting screws, bolts and nuts for mounting the inverter and the
fuse holder

• Tools to drill holes for mounting the inverter and fuse holder

• Lead-tin solder, flux, propane torch and an igniter for the torch

• Sharp utility knife to cut insulation and wire

• Battery connector for #4 AWG cable for connection to battery

or batteries

• For permanent installation over four feet use the following gauge
wire, #1 AWG 10 feet, #2 AWG 8 feet, #3 AWG 6 feet

INSTALLATION NOTES:
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 power source.

167

CAUTIONS:

This device supplies 110 VAC electrical power directly to the appliances
through three standard, North American U-ground receptacles. NEVER try
to use the inverters with any 12-VDC-power source that uses a positive
ground. Most modern vehicles, boats and aircraft use negative ground
systems.
Do not connect the ground wire from the inverter to the DC negative input.

• CHECK to ensure that the combined loads of the appliances being
powered by the the inverters do NOT continuously exceed 1000 watts

• NEVER place items on or over the inverter during operation

MAXX SST™inverters generate heat during operation like any high power
device and they must be placed where cooling air can be drawn into the
unit by its internal fan and heated air can be expelled and dissipated.
For optimum operation, the inverter should be placed or mounted on a flat
surface; ideally, a normally cool metal surface to help diffuse the heat that
is generated. Two cables rated #4 AWG (as specified earlier) will be
required (not supplied) each should be no longer than 4-feet long to allow
for full power operation and to provide flexibility in positioning the inverter.
For safety reasons, keep small children away from the inverter at all times.

5.3 INSTALLATION SEQUENCE

To wire the inverter to a 12 VDC power source, obser ve the following
cautions, and follow the installation sequence for Quick Operational
Checkout and Permanent Installation.

CAUTIONS: Ensure that DC connection polarity is correct. Reversed
polarity will blow a fuse and may cause permanent damage to the
inverter. The manufacturer’s warranty does NOT cover damage due to
reversed polarity. Review Figure 2, if necessary, to identify the location
of the DC terminals,

5.4 QUICK OPERATIONAL CHECKOUT OR EMERGENCY USE

YOU WILL REQUIRE:

• One heavy-duty jumper cable set with wire rated at 4AWG

• One fully-charged automobile battery

• A common, slip joint pliers for loosening and tightening terminal nuts

CHECKOUT PROCEDURE:

1. Remove the plastic terminal cover and terminal nuts..

2. Identify the Positive and negative terminals on the 12 volt DC battery

and identify the positive and negative terminals on the inverter.

4.0 OPERA

TION

NOTE: Ensure that the total continuous power consumption of all tools

and/or appliances connected to the inverter (and in use) does not exceed
1000 watts. Also ensure that the start-up wattage for inductive loads does
not exceed 2,000 watts for more than a few seconds.

CAUTION: Appliances such as microwave ovens will
normally draw more current than they are rated and could
possibly overload the inverter when operating simultaneously
with other appliances. For example: A 600 watt microwave
oven draws approximately 940 watts.

4.1 POWER REQUIREMENTS:

Most electrical tools, appliances and audio/video equipment have labels
that show the unit’s power consumption in amps or in watts or both. To
avoid inverter shutdown and possible damage to the inverter, take care to
avoid exceeding the 1000-watt rating of this unit. If the power consump­tion of the tool or device is rated in amps, multiply the amps by 110 VAC
to determine the wattage.
For instance, a power tool rated at 4-amps will draw 460 watts. The
inverter has built-in overload protection so that if you do exceed the 1000­watt continuous duty limit, the inverter will automatically shut down. Once
the excessive load is removed, the inverter can be restarted and resume
normal operation. Note: To restart the inver ter turn it OFF, and then turn it
back ON to restart. The ON/OFF switch is located on the front panel of
the inverter.
The inverter powers resistive loads the easiest; however, larger resistive
loads such as electric stoves or heaters could draw more wattage than the
inverter can deliver on a continuous basis.
The following chart shows the approximate amperage at 110 VAC and the
corresponding wattage at 110 V AC for various common tools and appliances.

APPLIANCE AMPS@ WATTS@

110VAC 110VAC

LAPTOP COMPUTER 0.5 55
HOUSEHOLD POWER MIXER 2 240
240-WATT STEREO/AMPLIFIER 2.2 265
REFRIGERATOR 3 360
3/8" VARIABLE SPEED DRILL 3 360
VARIABLE SPEED JIG SAW 3 360
10-SPEED BLENDER 3.2 375
BELT SANDER 3.4 410
3/8" REVERSIBLE DRILL 3.5 420
HOUSEHOLD FOOD PROCESSOR 3.6 430

815

APPLIANCE AMPS@ WATTS@

110VAC 110VAC

COMPUTER AND MONITOR 4 450
PORTABLE VACUUM 4.6 540
8-CUP COFFEE MAKER 5.5 650
ELECTRIC TRIMMER 5.5 660
1/2" HAMMER-DRILL 5.5 660
RECIPROCATING SAW 6 720
VACUUM CLEANER 7.2 865
1-1/8" ROTARY HAMMER 7.8 940
1/6 H.P. SUBMERSIBLE SUMP PUMP 8 960
COMPACT MICROWAVE OVEN 8.5 1020

NOTE: APPLIANCE SPECIFICATIONS MAY VARY FROM BRAND TO
BRAND. THIS TABLE IS OFFERED ONLY AS A GUIDE TO APPROXIMATE
POWER RATINGS. CHECK APPLIANCE MANUALS OR PRODUCT
LABELING FOR ACTUAL RATINGS. TO USE THE MAXIMUM OUTPUT
OF 1000 WATTS, MAXX SST 1000 MODELS MUST BE CONNECTED
TO A DC POWER SUPPLY CAPABLE OF PROVIDING 100 AMPS.

A. Power Output

The inverter will operate most AC loads within its power rating (1000 watts
continuous). Some induction motors used in refrigerators, freezers, pumps
and other motor-operated equipment require very high surge currents to
start them. The inverter may not be able to start some of these motors even
though their rated current draw is within specifications for this power
inverter.
If a motor refuses to start, observe the battery voltage using a DC voltmeter
while trying to start the motor. If the battery voltmeter drops below 11 volts
while the inverter is attempting to start the motor, this may be why the motor
won’t start. Make sure that the battery connections are tight and that the
battery (or batteries) is (are) fully-charged. If the connections are good and
the battery is charged, but the voltage still drops below 11 volts, you may
need to use a larger battery (or battery combination).

5.2 OPERATING ENVIRONMENT
WARNINGS:

DO NOT locate inverters in an area, room or compartment where explosive
or flammable fumes might be present. Typically, these areas are: the
engine room or engine compartment of a gasoline-powered vehicle or
boat and small, closed, unvented battery compartments.
In all marine applications, DO NOT install the inverter below or near the
waterline and keep the inverter away from moisture or water.
Use ONLY non-corrosive marine fasteners and fittings for installation.
Only connect the inverter’s DC input to existing wiring (which must be
approved for marine use) rated #4 AWG. For cable lengths exceeding 4
feet from inverter to batteries, call Vector Manufacturing for additional
installation information. The cable, fuse holder, fuse (not supplied) can be
purchased at an electrical supply company. The fuse holder and fuse are
or ANL-200 fuse and appropriate fuse holder. Call Vector™Technical
Support [phone] Ext. 119 or toll-free: [phone].

CAUTION:

To avoid possible dangerous conditions, the inverters must be located
where:

1. The unit is kept dry.

2. Air temperature is between 30°F (-1°C) non-condensing,
and 105 degrees F (40°C).

3. At least three inches of clearance from other objects is maintained for
cooling airflow.

4. The unit is not exposed to direct heat or sunlight or to explosive or
flammable fumes.

5. The unit is as close to the DC power source as possible.

149

5.0 INSTALLATION

The inverter will provide you with up to 1000 watts of continuous, elec­trical power (2000 watts peak) at 110 VAC when powered by a 12 VDC
source such as is found in a vehicle or multiple battery configuration as
shown in FIGURE 7. This manual does not describe all of the possible types
of battery configurations, battery charging configurations and battery isola­tion configurations.

5.1 INPUT POWER REQUIREMENTS:

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 as shown on
FIGURE 7.

Figure 7 –Battery Wiring

NOTE: Vector™Manufacturing recommends that for typical heavy-duty
uses, a ANL-200 or equivalent (capable of handling 200 amps for a few
seconds) main buss fuse be added to the power source positive cable as
close as possible to the power source (battery) positive terminal. The fuse
amperage must be sized to allow simultaneous operation of all the AC
appliances to be powered, with delay characteristics that allow for the
momentary high start-up current requirements of inductive loads. Use the
recommended fuse block (fuse holder) and fuse, or an electrical equivalent.
For full rated output and motor start-up surge output, ensure that the installation
is configured to handle the full load. Figure 7 is also used as a guide when the
cables are measured for installing the inverter. Available through Vector
Technical Support at [phone] Ext. 119.

+–

BATTERY

FUSE

200 AMP

FUSE HOLDER

+
–

+–

BATTERY

+–

BATTERY

+–

BATTERY

BATTERY CHARGING

FROM COMMERCIAL

AC, ENGINE, SOLAR, ETC.

MAXX 1000

POWER

INVERTER

(Max of 4 Feet of

#4 AWG Wire)

Fuse To Battery Length

+ Fuse To Inverter Length

(Max of 4 Feet of #4 AWG Wire)

B. Input Voltage

The inverter

will operate from input voltages between 10.5 and 15 VDC. If
the voltage drops below 10.6 volts, an audible low battery warning alarm
will sound. The inverter will shut down if the input voltage drops below 10.5
VDC. This built-in feature protects the battery from being completely
discharged.
The inverter will also shut down if the input voltage exceeds 15 volts This
protects the inverter against excessive input voltage. Although the inverter
has built-in protection against overvoltage, it may still be damaged if the
input voltage exceeds 15 volts.
NOTE: Exceeding the recommended voltage limits will void the manufac­turer’s warranty.
Inductive loads, such as TVs and stereos, require more current to operate
than do resistive loads with the same wattage rating. Induction motors, as
well as some TVs, may require two to six times their rated wattage to start
up. Because MAXX SST™ 1000 Model inverter have a peak power rating
of 2,000 watts, many such appliances and tools may safely be operated.
The equi pment that needs the highest starting wattage are pumps and compres­sors that start under load.
This equipment can be safely tested. If an overload is detected, the
inverters will simply shut down until the overload situation is corrected. Use
the front panel switch to turn OFF the inverter then ON to reset the inverter.

CAUTION:

NO USER-SERVICEABLE COMPONENTS INSIDE. OPENING UNIT
WILL VOID WARRANTY.

4.2 DETERMINING BATTERY SIZE:

To determine the minimum battery size that you will need to operate appli­ances from the MAXX SST™ 1000 Models, follow these steps:

1. Determine the wattage of each appliance and/or tool you will need to

simultaneously operate from the inverter. To do this, read the labels on
the equipment to be operated. Usually, power consumption is shown in
watts. If it is shown in amps, multiply by 110 to determine the wattage.

2. Estimate the number of hours the equipment will be in use between

battery recharges.

3. Determine the total watt-hours of energy use, the total running time and

the average power consumption.
T o get an estimate of the current (in amps) that the battery must be capable
of delivering, divide the load consumption power (in watts) by (10). Keep
in mind that most appliances are not operating for long periods of time.
For example, a typical home-use coffee maker draws 500 watts during it’s
brew time of 5 minutes, but it maintains the temperature of the pot at about
100 watts. Typical use of a microwave is only for a few minutes, sometimes
at low power. Some exceptions to brief operating times are lamps, TVs and
computers.

1013

4.3 BATTERY OPERATING TIME

FIGURE 6 is a set of curves that show how appliance load in watts or in
amperes affects operating time. These curves are only estimates of operating
time, dependent upon:

• The condition of the batteries

• The state of charge on the batteries

• The amount of other DC appliances drawing current from the batteries

Three curves were developed for a battery of 50 Ampere Hours (AH)
capacity, and three for multiple batteries in parallel. The higher capacity
curves are for 120 AH and 200AH capacities. These large capacity
batteries clearly extend operating time at full load. To extend operating
time, in general, reduce the heavy appliance load to a minimum.
Remember, you are operating on stored energy and probably under
power loss conditions. All operating time curves assume permanent instal­lation with the correct DC input wire (#4 AWG) and a full charge on the
batteries.

Figure 6 – Battery Operating Time

For example, as shown in FIGURE 6, using a 200 amp hour battery
(batteries) if the average power usage will be 1000 watts the operating
time will be about 150 minutes. A larger capacity battery will deliver
more operating time between recharges.
NOTE: The manufacturer recommends conservative estimates when
selecting a battery. More amp-hours will deliver a reserve capacity and a
larger capacity battery will not be subject to deep discharges. Ideally, the
number of amp hours you expect to use should be less than 50% of the
battery’s rated capacity.

100

100

1000

1000

90

90

80

80

70

70

60

60

50

50

40

40

30

30

20

20

10

10

900

900

800

800

700

700

600

600

500

500

400

400

300

300

200

200

100

100

151530304545606075759090105

105

120

120

135

135

150

150

165

165

180

180

195

195

210

210

235

235

240

240

4.4 PROTECTIVE FEATURES

LOW BATTERY ALARM:
An audible alarm will sound when:

1. The 12-VDC power supply voltage drops down to 10.6 volts.
This indicates that the battery needs to be recharged or there is an
excessive voltage drop between the battery power source and the inverter.

NOTE: It is normal for the alarm to sound the when inverter is being
connected to, or disconnected from, a 12 VDC-power source. This does
NOT indicate a problem. However, if this alarm sounds continuously,
except as described, discontinue inverter operation and recharge the
battery before resuming operation. If the voltage drops to 10.0 VDC, the
inverter will automatically shut down.
If the low voltage alarm sounds when the battery is fully-charged, refer to
the troubleshooting table for possible causes and remedies.

CIRCUIT PROTECTION:
The inverter

has electronic circuit protection against overload or short

circuit condition

WARNING: If turning the front panel mounted
switch OFF then ON does not reset the inverter,
DO NOT ATTEMPT TO OPEN THE INVERTER.
Opening the inverter, for any reason, will void
the warranty. The unit must be returned to Vector
Manufacturing, Ltd. for testing and repair by
professional factory technicians.

1211