Magnum Dimensions CSW2012-X Owner's Manual

CSW2012-X

Pure Sine Wave Inverter

Owner’s Manual

Thank you from all of us at Sensata Technologies for purchasing this CSW2012-X inverter. The CSW2012-X is under the Magnum-Dimensions brand from Sensata Technologies. We understand that you have many purchasing options in the marketplace and are pleased that you have decided on this product.

At Sensata, we are committed to providing you with quality products and services, and hope that your experience with us is pleasant and professional.

Disclaimer of Liability

Since the use of this manual and the conditions or methods of installation, operation, use and maintenance of the CSW2012-X inverter is beyond the control of Sensata Technologies, this company does not assume responsibility and expressly disclaims liability for loss, damage or expense, whether direct, indirect, consequential or incidental, arising out of or in any way connected with such installation, operation, use, or maintenance.

Note as well that while every precaution has been taken to ensure the accuracy of the contents of this manual, the speciﬁ cations and product functionality may change without notice. Sensata assumes no responsibility for errors or omissions.

Restrictions on Use

The CSW2012-X inverter may only be used in life-support devices or systems with the express written approval of Sensata Technologies. Failure of the CSW2012-X inverter can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. If the CSW2012-X inverter fails, it is reasonable to assume that the health of the user or other persons may be endangered.

Document Information

Description – CSW2012-X Owner’s Manual Part Number and Revision – 64-0074 Rev B Date Published – July 2015

This manual is printed without color for cost savings. However, this entire manual is available with many of the ﬁ gures in color and can be downloaded at

www.magnum-dimensions.com.

Contact Information

For Magnum-Dimensions products:

Sensata Technologies Phone: 425-353-8833 2211 West Casino Rd. Fax: 425-353-8390 Everett, WA 98204 Web:

Record the unit’s model and serial number in case you need to provide this information in the future. It is much easier to record this information now, instead of trying to gather it after the unit has been installed.

Model: Serial Number:

CSW2012-X BF

www.magnum-dimensions.com

IMPORTANT PRODUCT SAFETY INSTRUCTIONS

This manual contains safety instructions that must be followed during the installation and operation of this product. Read all instructions and safety information on the inverter and in this manual before installing or using.

Safety Symbols

To reduce the risk of electrical shock, ﬁ re, or other safety hazard, the following safety symbols have been placed throughout this manual to indicate dangerous situations and important safety instructions.

WARNING: Indicates that failure to take a speciﬁ ed action could

result in physical harm to the user.

CAUTION: Indicates that failure to take a speciﬁ ed action could result

in damage to the equipment.

Info: Indicates information that emphasizes or supplements important

points of the main text.

Product Safety Warnings

WARNINGS: Failure to follow the instructions below and in this

manual can result in death or serious injury.

• All electrical work must be performed in accordance with local, state and federal electric codes.

• This product is designed for indoor/compartment installation. Do not expose to rain, snow, moisture, or liquids of any type.

• Use insulated tools to reduce the chance of electrical shock or accidental short circuits. Be sure to remove all jewelry such as rings, watches, bracelets, etc., when installing or performing maintenance on the inverter.

• Always disconnect the batteries or energy source prior to installing or performing maintenance on the inverter. Live power may be present at more than one point since an inverter utilizes both batteries and AC.

• Do not cover or obstruct any air vent openings and/or install in a zeroclearance compartment - always operate unit in an open area.

• When working with electrical equipment or lead acid batteries, have someone nearby in case of an emergency.

• Study and follow all the battery manufacturer’s speciﬁ c precautions when installing, using, and servicing the battery connected to the inverter.

• While working with batteries, wear eye protection and gloves, and avoid touching your eyes. Keep fresh water and soap on hand in the event battery acid comes in contact with eyes. If this occurs, cleanse right away with soap and water for a minimum of 15 minutes and seek medical attention.

• Batteries produce explosive gases, DO NOT smoke or have an open spark or ﬁ re near the system.

• Avoid dropping any metal tool or object on the battery. Doing so could create a spark or short circuit which goes through the battery or another electrical tool and may cause an explosion.

• Shock Hazard! Keep away from children!

• These inverters provide household AC, treat the AC output sockets the same as regular wall AC sockets at home.

• Explosion hazard! DO NOT use this inverter in the vicinity of ﬂ ammable fumes or gases (such as propane tanks or large engines).

• These inverters contain no user-serviceable parts. See the Warranty section for how to handle service issues.

Table of Contents

1.0 Introduction ............................................................................. 1

1.1 Features ................................................................................. 1

1.2 How this Inverter Works ............................................................ 4

1.3 Advantages of a Pure Sine Wave Inverter .................................... 4

2.0 Installation .............................................................................. 5

2.1 Pre-Installation ........................................................................ 5

2.1.1 Installation Guidelines ........................................................ 5

2.1.2 Unpacking and Inspection ...................................................5

2.1.3 Tools Required ................................................................... 5

2.2 Locating and Mounting the Inverter ............................................7

2.3 Wiring the Inverter – General Requirements ................................ 9

2.3.1 Wiring Requirements .......................................................... 9

2.3.2 Torque Requirements .......................................................... 9

2.4 DC Wiring ............................................................................. 10

2.4.1 DC Wire Sizing................................................................. 11

2.4.2 DC Overcurrent Protection ................................................. 12

2.4.3 DC Grounding .................................................................. 12

2.4.4 DC Cable Connections ....................................................... 12

2.4.5 Wiring the Battery Bank .................................................... 13

2.4.6 Appliances and Run Time .................................................. 13

2.4.7 Wiring the Inverter to the Battery Bank............................... 14

2.5 AC Wiring .............................................................................. 16

2.5.1 Pre-AC Wiring Requirements .............................................. 16

2.5.2 AC Wire Size and Overcurrent Protection ............................. 16

2.5.3 AC Neutral to Safety Ground Bonding ................................. 17

2.5.4 AC Terminal Block Connections .......................................... 18

2.5.5 AC Conductor Wiring Steps ................................................ 18

2.5.6 Removing the Display Panel ............................................... 22

2.6 Testing the Inverter ................................................................ 23

2.6.1 Inverter Functional Test .................................................... 23

3.0 Operation ............................................................................... 24

3.1 Inverter Mode ........................................................................ 24

3.2 By-Pass Mode ........................................................................ 24

3.3 Display Panel Operation .......................................................... 25

3.4 Understanding Loads .............................................................. 28

4.0 Troubleshooting ..................................................................... 29

5.0 Speciﬁ cations ......................................................................... 35

Appendix A - Battery Information ................................................ 36

Battery Bank Sizing ...................................................................... 36

Battery Types............................................................................... 36

Battery Conﬁ guration .................................................................... 36

Series Wiring ............................................................................ 36

Parallel Wiring ........................................................................... 37

Series-Parallel Wiring ................................................................. 37

Appendix B - Preventive/Periodic Maintenance ............................ 38

Recommended Inverter and Battery Care ........................................ 38

RV/Marine Off-Season Storage ....................................................... 38

Appendix C - Regulatory and FCC Information .............................. 39

Appendix D - Limited Warranty .................................................... 40

How to Receive Warranty Service.................................................... 40

List of Figures

Figure 1-1, Front Panel Features .......................................................... 1

Figure 1-2, Front Panel Features (Cover Removed) ................................. 2

Figure 1-3, Back Panel Features ..........................................................3

Figure 1-4, AC Waveforms .................................................................. 4

Figure 2-1, Basic System Diagram ....................................................... 6

Figure 2-2, Approved Mounting Positions .............................................. 8

Figure 2-3, CSW2012-X Dimensions ..................................................... 8

Figure 2-4, DC Cable to Battery Terminals ........................................... 15

Figure 2-5, DC Cable to Inverter’s DC Terminals .................................. 15

Figure 2-6, AC Wiring (20A By-Pass and GFCI output)) ......................... 20

Figure 2-7, AC Wiring (30A By-Pass) .................................................. 21

Figure 2-8, Remote Cable ................................................................. 22

Figure 3-1, Display Panel .................................................................. 25

Figure 3-2, Inverter Setting Flow Chart .............................................. 26

Figure A-1, Series Battery Wiring ....................................................... 36

Figure A-2, Parallel Battery Wiring ..................................................... 37

Figure A-3, Series-Parallel Battery Wiring ............................................ 37

Tables

Table 2-1, Torque Requirements ..........................................................9

Table 2-2, DC Wire/Overcurrent Device for Rated Use ........................... 11

Table 2-3, Appliance Power Consumption and Run Time ........................ 13

Table 3-1, Display Functions/Statuses ................................................ 25

Table 3-2, Inverter Settings .............................................................. 27

Table 4-1, Inverter Error Codes ......................................................... 29

Table 4-2, Troubleshooting ................................................................ 30

Table 5-1, CSW2012-X Specifications ................................................. 35

1.0 Introduction

Congratulations on your purchase of the CSW2012-X inverter. The CSW2012-X is a “pure” sine wave inverter with an internal transfer switch and is sold under the Magnum-Dimensions brand from Sensata Technologies. This unit is designed to be powerful, yet simple to operate, and will provide you with reliable AC power for trouble-free use. Please read this chapter to familiarize yourself with the features and beneﬁ ts of your CSW2012-X inverter.

1.1 Features

The front panel of the CSW2012-X inverter is equipped with the following features (see Figure 1-1):

1. AC Wiring Access Cover – when this cover is removed, it provides

access to the AC wiring terminals used to hardwire all inverter AC input and output wiring (see Figure 1-2). Remove four screws to remove the access cover.

2. GFCI – a 20-amp, Ground Fault Circuit Interrupter (GFCI) protected, AC

outlet. This GFCI outlet quickly stops the ﬂ ow of electricity in the event a ground fault occurs on the device that is plugged into the inverter.

3. USB Port – allows USB-enabled devices to be powered and charged

(provides 5 VDC/750 mA).

4. Serial Number – the unique identiﬁ cation number assigned to each

unit (with a model-speciﬁ c preﬁ x). Note: Enter your inverter’s serial

number in the table at the bottom of page i. It is to easier to record this information now, instead of trying to gather it after the unit has been installed.

5. Display Panel – a removable/remote display that shows the inverter’s

measured battery voltage, total AC output power, and any error or warning codes. This display has LEDs that provide the inverter’s status, and also includes the SELECT and POWER button switches used to set up and turn the inverter on and off (See Section 3.3).

6. AC Output Circuit Breaker – this supplementary 20-amp circuit

breaker protects the unit’s GFCI outlet and is also connected in circuit with the AC 2 output (L2 and N2 outputs). The circuit breaker pops out when it opens—press in to reset.

Figure 1-1, Front Panel Features

1.0 Introduction

The following front panel features are available on the CSW2012-X inverter when the access cover is removed (See Figure 1-2):

Info: To access and view the AC terminal block and ground termi-

nal, remove the four Phillips screws holding the AC wiring access cover.

7. AC Entry/Exit Openings – two 1/2” knockouts are provided to

accommodate the inverter’s AC input and output wiring.

8. AC Ground Connection – used to connect all AC input and output

grounds. To attach multiple ground wires (i.e., ground wires from the AC input and output circuits), use a pressure or mechanical connector (i.e., ring terminal).

9. AC Input Terminal – a two-pole terminal block used to connect the

inverter’s AC input wiring. This terminal block allows a service/distribution panel (main panel) to be wired to the inverter’s input.

10. AC Output Terminal – this four-pole terminal block is used to connect

the inverter’s AC output wiring. This terminal block panel (sub-panel) to be connected between the inverter’s output wiring and the AC loads.

The AC 1 output terminals (L1/N1) allow a pass-thru (By-Pass mode) current of 30 amps. The AC 2 output terminals (L2/N2) are protected by the inverter’s 20-amp circuit breaker (Figure 1-1, Item 6) which limits the passthru current of 20 amps.

allows a dedicated

CAUTION: The inverter’s internal AC transfer relay is rated for

30 amps. The pass-thru current from the input terminal to the AC 1 (L1/N1) output terminals must be no greater than 30 amps or damage to the internal relay may occur.

Info: The AC input and output terminals can accept one #14 to

#10 AWG (2.1 to 5.3 mm2) CU stranded wire. They use slotted head screws and have a recommended maximum tightening torque of 5 to 8 lbf-in (0.6 to 0.9 N-m).

Figure 1-2, Front Panel Features (Cover Removed)

1.0 Introduction

The back panel of the CSW2012-X inverter is equipped with the following features (See Figure 1-3):

11. Model Number – the model number of the inverter and other

information.

12. Cooling Fan(s) – intake cooling fans that automatically turn on when

the inverter’s internal temperature rises above 122°F (50°C). The fan turns off when the inverter’s internal temperature falls below 122°F (50°C).

13. Mounting Flanges (front and rear) – used to mount and secure the

inverter to a shelf/wall.

14. DC Positive Terminal (red) – the inverter’s connection to the positive

terminal on the 12 VDC battery bank.

15. DC Negative Terminal (black) – the inverter’s connection to the

negative terminal on the 12 VDC battery bank.

16. DC Ground Connection – the connection that is used to tie the

exposed chassis of the inverter to the DC grounding system. The DC grounding system could be the vehicle’s chassis, the DC grounding bus, or the engine’s negative bus. To attach ground wires, use a pressure or mechanical connector (i.e., ring terminal) with a 1/4” opening.

Figure 1-3, Back Panel Features

1.0 Introduction

1.2 How this Inverter Works

There are two modes of operation associated with the CSW2012-X inverter:

• Inverter Mode:

When the inverter is properly connected to batteries and turned on, the direct current (DC) from the batteries is transformed into a pure sine wave alternating current (AC). This AC is similar to the voltage provided by your utility and is used to power any electrical appliances (i.e., AC loads) connected to the inverter’s output.

• By-Pass (pass-through) Mode:

When an external source of AC power (i.e., utility power or generator) is connected and qualiﬁ ed on the inverter’s AC input, it operates in By-pass mode. In By-pass mode, the unit automatically closes an internal AC transfer relay that passes the incoming AC power directly to the inverter’s output to continue powering the connected electrical appliances.

1.3 Advantages of a Pure Sine Wave Inverter

Today’s inverters come in three basic output waveforms: square wave, modiﬁ ed sine wave (which is actually a modiﬁ ed square wave) and pure sine wave (see Figure 1-4).

Modiﬁ ed sine wave inverters approximate a pure sine wave form and will run most appliances and electronics without any problems. These inverters are less expensive, and therefore, offer a viable alternative to more expensive pure sine inverters.

The output of the CSW2012-X inverter—which is pure sine wave—is equal to, or in many cases, better than the utility power used in your home. Virtually any electronic device will operate from a pure sine wave inverter. Motors run cooler, microwaves usually cook faster, and clocks keep better time just to name a few examples. Without compromising quality or performance, the CSW2012-X provides you with all the advantages of a pure sine wave inverter at a much lower cost than many on the market.

200 160

Square Wave

120

Sine Wav e

Modified

Sine Wav e

VOLTAGE

120

160 200

TIME

Figure 1-4, AC Waveforms

2.0 Installation

Review this section and all safety instructions before proceeding with the installation of your inverter.

WARNING: Installations should be performed by qualified personnel, such as a licensed or certiﬁ ed electrician. The installer

determines which safety codes apply and ensures all applicable installation requirements are followed. Applicable installation codes vary depending on the speciﬁ c location and application.

WARNING: Before installing, review the “Important Product Safety

Information” on page ii and adhere to all cautionary markings located on the inverter and on the batteries.

2.1 Pre-Installation

Before proceeding, read the entire Installation section to determine how best to install your CSW2012-X inverter. The more thorough you plan in the beginning, the better your inverter needs will be met. There is a simpliﬁ ed system diagram shown in Figure 2-1. This diagram should be reviewed to assist you in planning and designing your installation. This drawing is not intended to override or to restrict any national or local electrical codes, and should not be the determining factor as to whether the installation is compliant, that is the responsibility of the electrician and the onsite inspector.

2.1.1 Installation Guidelines

• Before connecting any wires, determine the cable routes throughout the

vehicle or boat, both to and from the inverter.

• Always check for existing electrical, plumbing, or other areas of potential

damage BEFORE drilling or cutting into walls.

• Make sure all wires have a smooth bend radius and do not become kinked.

• If installing this inverter in a boat, RV or truck, ensure the conductors

passing through walls, bulkheads, or other structural members are protected. This minimizes insulation damage (such as chaﬁ ng), which can be caused by vibration or constant rubbing.

2.1.2 Unpacking and Inspection

Carefully remove the inverter from its shipping container and inspect all contents. Verify the following items are included:

• CSW2012-X inverter

• CSW2012-X Owner’s Manual

If items appear to be missing or damaged, contact your authorized MagnumDimensions dealer or Magnum-Dimensions directly.

*** Save your proof-of-purchase as a record of your ownership; it

is needed if the unit should require in-warranty service. ***

2.1.3 Tools Required

Installing the inverter is simple and requires the following:

• Adjustable wrench (10-13 mm) • Level • Drill

•

#10 Mounting screws (x4) • Pencil • Drill bits

• Phillips screwdriver

2.0 Installation

A C Main P anel

(Branch Circuit Breaker to

Inverter: 30A max)

AC OUT*

Sub-Panel

Outlet

AC Source

(120VAC, 60 Hz Sinewave)

CSW2012-X Inverter

AC IN

Ground

(Vehicle

chassis, DC

grou nd bus,

or engine

neg ative bus)

Disconnect

AC Loads

(L1/N1 = 30A max,

L2/N2 = 20A max)

Fuse

DVD

Battery

Bank

Tools

* Maximum pass-thru current from AC output terminals:

L1/N1 output terminals = 30 amps,

L2/N2 output terminals = 20 amps (in series with GFCI outlet).

Figure 2-1, Basic System Diagram

2.0 Installation

2.2 Locating and Mounting the Inverter

WARNINGS:

• Do not mount the inverter near any flammable or combustible fluid or components.

• Provide adequate clearance/ventilation to the inverter. Do not cover or obstruct any air vent openings and/or install in a zeroclearance compartment.

The CSW2012-X inverter should only be installed and mounted in a location that meets the following requirements:

Clean and dry – The inverter should not be installed in an area that allows

dust, fumes, insects, or rodents to enter or block the inverter’s ventilation openings. This area also must be free from any risk of condensation, water, or any other liquid that can enter or fall on the inverter. these conditions is not covered under warranty.

Cool – The inverter should be protected from direct exposure to the sun or

to any equipment that produces extreme heat. The ambient temperature should be between 32°F (0°C) and 104°F (40°C); note that the inverter’s output speciﬁ cations are rated at 77°F (25°C), so the cooler the better.

Ventilated – In order for the inverter to provide full output power and

avoid over-temperature fault conditions, do not cover or block the inverter’s ventilation openings, or install this inverter in an area with limited airflow. Allow a minimum airspace clearance of 3” (7.6 cm) around the unit to provide optimum ventilation.

Safe – Keep any flammable/combustible material (e.g., paper, cloth, plastic,

etc.,) that may be ignited by heat, sparks, or flames at a minimum distance of 2 feet (60 cm) away from the inverter. Do not install in any area that contains extremely flammable liquids like gasoline or propane, or in locations that require ignition-protected devices.

Close to the battery bank – As with any inverter, it should be located as

close to the batteries as possible. Long DC wires tend to lose efficiency and reduce the overall performance of an inverter. However, the unit should not be installed in the same compartment as the batteries or mounted where it will be exposed to gases produced by the batteries. These gases are corrosive and will damage the inverter; also, if these gases are not ventilated and if allowed to collect, they could ignite and cause an explosion.

Accessible – Do not block access to the front or back of the inverter. Allow

room to view any indicators or the digital display and to access the AC and DC wiring connections—these wiring connections will need to be checked and tightened periodically.

Orientating the inverter - When mounted indoors, the CSW2012-X inverter

can be mounted on/underneath a horizontal surface (shelf or table) or on a vertical surface (wall or bulkhead) with the DC terminals facing left, right, or up; do not mount with the DC terminals facing downward (see Figure 2-2).

After determining your mounting position, use the base of the inverter’s chassis as a template to mark your mounting screw locations (or, refer to the dimensions in Figure 2-3). Remove the inverter and drill pilot holes into the mounting surface. Secure the inverter to the surface using the appropriate corrosion-resistant hardware. If this unit is used in a mobile application, you may want to place flexible washers or bushings between the mounting surface and the inverter’s mounting flanges to reduce vibration.

Inverter failure under

2.0 Installation

Flat on a

horizontal surface

(right side up

or upside down).

DC terminals to the

right, left or top.

Note: CSW2 012-X cannot

be mounted with DC

terminals facing down.

To p

Figure 2-2, Approved Mounting Positions

12.5’’ (31.8 cm)

" (21.6 cm)

1/2

9.1’’ (23 cm)

17.1’’ (43.5 cm)

Front (AC Side)

Back (DC Side)

4.5’’

(11.5 cm)

8.6’’ (21.8 cm)

Figure 2-3, CSW2012-X Dimensions

2.0 Installation

2.3 Wiring the Inverter – General Requirements

This section describes the requirements and recommendations for wiring the CSW2012-X inverter. Before wiring the inverter, carefully read all instructions.

The NEC (National Electric Code, ANSI/NFPA 70) for the United States and the CEC (Canadian Electrical Code) for Canada provide the standards for safely wiring residential and commercial installations. The NEC/CEC lists the standards for wire sizes, overcurrent protection, and installation methods and requirements.

Inverter/charger systems involve power from multiple sources (inverter, generator, utility, batteries, solar arrays, etc.) which can make the wiring more hazardous and challenging.

WARNING: Ensure all sources of DC power (i.e., batteries, solar,

wind, or hydro) and AC power (utility power or AC generator) are de-energized (i.e., breakers opened, fuses removed) before proceeding—to prevent accidental shock.

WARNING: Wiring should meet all local codes/standards and be performed by qualiﬁ ed personnel (i.e., licensed electrician).

2.3.1 Wiring Requirements

• All conductors that are at risk for physical damage must be protected by tape or placed in a raceway.

• Always check for existing electrical, plumbing, or other areas of potential damage prior to making cuts in structural surfaces or walls.

• Use only copper wires with a minimum temperature rating of 75° C (194° F).

• Do not mix AC and DC wiring in the same conduit or panel unless specifically approved/designed for both AC and DC wiring. Where DC wiring must cross AC or vice-versa, try to make the wires at the crossing point perpendicular (90 degrees) to one another.

• Both AC and DC overcurrent protection must be provided as part of the installation.

• The inverter requires a reliable negative and ground return path directly to the battery.

2.3.2 Torque Requirements

All wiring to the AC and DC terminals should be checked periodically (once a month) for proper tightness. For the torque requirements, refer to Table 2-1. If you don’t have a torque wrench, ensure all connections are tight.

Table 2-1, Torque Requirements

Terminal Size

AC Terminals

(AC input/output)

DC Terminals

DC Ground

M3.5 × 7

screws

M8 x 1.25

Hex nuts

M6 x 1.0

Hex nut

Torque

Requirements

5 - 8 lbf-in

(.6 to .9 N-m)

16 to 21 lbf-ft

(21.7 to 28.5 N-m)

79 to 96 lbf-in

(8.9 to 10.9 N-m)

Tool Size Needed

ﬂ at-head screwdriver

(2.9 to 3.5 mm blade)

13 mm wrench

10 mm wrench

2.0 Installation

2.4 DC Wiring

This section describes the inverter’s required DC wire sizes, the recommended disconnect/overcurrent protection, and how to make the DC connections to the inverter and the battery bank.

WARNING: Even though DC voltage can be regarded as “low voltage”, signiﬁ cant hazards may be present, particularly from short

circuits of the battery system.

CAUTION: The inverter is NOT reverse polarity protected—which

means if the negative and positive battery voltage is connected to the inverter backwards, the inverter will likely be damaged. Use a voltmeter to verify the correct polarity BEFORE connecting the DC wires.

CAUTION: DO NOT connect the battery cables to the inverter until

all wiring is complete and the correct DC voltage and polarity have been veriﬁ ed.

Refer to Figure 2-4 when connecting the DC wires to the battery, and to Figure 2-5 when connecting to the inverter. Also, consider the following requirements to ensure maximum performance:

• The DC positive and negative cables connected to the inverter from the battery bank should be tied together with wire ties/straps or electrical tape approximately every 6 inches (15.3 cm). This helps improve the surge capability and reduces the effects of inductance, which improves the inverter waveform and reduces the wear of the inverter’s ﬁ lter capacitors. Keeping the battery cables close together also reduces the chance of radio frequency interference.

• Be aware that over-tightening or misthreading the nuts on the DC terminals can cause the bolts to strip and snap/break off.

• Make sure cables have a smooth bend radius and do not become kinked. Follow existing wire runs where possible.

• Crimped and sealed copper ring terminal lugs with at least a 6 mm (1/4”) bolt hole to connect the DC wires to the inverter’s DC terminals.

• The battery bank voltage MUST be between 10.5-15.5 for the inverter to operate. If the voltage exceeds 16.0V, the inverter may be damaged.

• To ensure the maximum performance from the inverter, all connections from the battery bank to the inverter should be minimized. The exceptions are the DC fuse and disconnect, or the DC circuit breaker— required at the battery to protect the DC wiring—in the positive line. Any other additional connection will contribute to additional voltage drops, and these extra connection points may loosen during use.

• A brief spark or arc may occur when connecting the battery cables to the inverter DC terminals; this is normal and due to the inverter’s internal capacitors being charged.

• Before routing the wiring, color code the DC cables/wires with colored tape or heat shrink tubing: RED for positive (+); WHITE for negative (–); and GREEN (or bare copper) for DC ground, to avoid polarity problems.

• When installed in a truck/RV, a cable should be connected directly from the inverter’s negative terminal to the battery negative connection; this ensures the inverter has a reliable return path directly to the battery. Do not use the vehicle chassis in place of the battery negative connection to the inverter.

• Where DC wiring must cross AC or vice-versa, try to make the wires at the crossing point perpendicular (90 degrees) to one another.

2.0 Installation

CSW2012-X

190 amps

229 amps

#8 AWG (8.36 mm²)

#2/0 AWG (67.4 mm²)

[300 amps]

300 amps with time delay

▼

5 to 10 feet = #4/0 AWG (107 mm²)

10 to 15 feet = Not recommended

Note 1 - Maximum Continuous Current is based on the inverter’s continuous power rating at the lowest input voltage with an inefficiency factor. Note 2 - The grounding conductor for the DC system shall meet the sizing requirements specified in the NEC for the application, but must be no smaller than 8 AWG copper. In some applications (i.e., Marine installations), the DC grounding conductor is required to be no less than one size smaller than the w ire size of the DC positive/negative cables.

Full Load C urrent

Maximum C ontinuous C urrent¹

Minimum DC Ground Wire Size

Minimum DC Wire Size

[90˚C rating in free air]

Maximum DC Fuse Size

Increased size for

longer distance

2.4.1 DC Wire Sizing

It is important to use the correct sized DC wire to achieve maximum efﬁ ciency from the system and to reduce ﬁ re hazards associated with overheating. Always keep your wire runs as short as practical to prevent low voltage shutdowns and to keep the DC breaker from nuisance tripping (or open fuses) because of increased current draw. See Table 2-2 to select the minimum DC wire size (and corresponding overcurrent device) required based on your inverter model. The cable sizes listed in this table are required in order to reduce stress on the inverter, minimize voltage drops, increase system efﬁ ciency, and ensure the inverter’s ability to surge heavy loads.

If the distance from the inverter to the battery is >5 feet (1.5 m), the DC wire will need to be increased. Longer cable distances affect the performance of the inverter. See the lower part of Table 2-2 to determine the minimum DC wire size needed for various distances greater than 5 feet—based on your inverter model.

DC Wire Size Exception: In an OEM RV application, smaller DC wire (with

appropriate overcurrent protection) may be used if the inverter will only be connected to a dedicated load, and the inverter and dedicated load have been thoroughly tested and sold together by the OEM as a complete system.

Table 2-2, DC Wire/Overcurrent Device for Rated Use

2.0 Installation

2.4.2 DC Overcurrent Protection

For safety reasons and to comply with electrical code regulations, DC overcurrent protection must be provided as part of the installation. The DC overcurrent protection device must be installed in the positive DC cable line, it can be a fuse (with a disconnect switch) or a circuit breaker and must be DCrated. It must be correctly sized according to the size of DC cables being used, which means it is required to open before the cable reaches its maximum current carrying capability, thereby preventing a ﬁ re. The NEC requires both overcurrent protection and a disconnect switch.

Because batteries can deliver thousands of amps in an instant during a short, a DC-rated fuse (or circuit breaker) that has an AIC (Amps Interrupting Current) rating that can withstand the short-circuit current without explosion or damage is required to be installed. If a fuse is used as an overcurrent device, a Class-T type or equivalent is highly recommended when used with inverters. A Class-T fuse is rated for DC operation, can handle very high short-circuit currents (up to 100,000 AIC), and has a time delay that allows for momentary current surges from the inverter without opening the fuse. In some installations, if the combined short-circuit current of all the batteries in the bank is determined to be 2,700 amps or less, then an ANL type of fuse may be used—if in doubt, use a Class-T fuse. See Table 2-2 for the fuse size (coordinated with the DC wire size) recommended for the CSW2012-X inverter.

2.4.3 DC Grounding

The inverter should always be connected to a permanent, grounded wiring system. The idea is to connect the metallic chassis of the various enclosures together to have them at the same voltage potential, to reduce the possibility for electric shock. For most installations, the inverter chassis and the negative battery conductor are connected to the system’s ground bond via a safety grounding conductor (bare wire or green insulated wire) at only one point in the system. The grounding conductor for the DC system shall meet the sizing requirements speciﬁ ed in the NEC for the application, but must be no smaller

than 8 AWG copper. For instance: An inverter used in a marine application under

ABYC guidelines requires the size of the DC grounding conductor to be of an ampacity equal to or one size less than that of the DC positive conductor. See

Table 2-2 for the minimum ground wire size recommended for your inverter.

Info: If the inverter is installed in a vehicle, connect the battery

negative cable directly to the inverter’s negative terminal. DO NOT connect the negative battery cable meant for the inverter to the vehicle’s frame/safety ground.

2.4.4 DC Cable Connections

Do not put anything between the battery cable ring lug and the battery post (see Figure 2-4), or the ﬂ at metal part of the inverter’s DC terminal (see Figure 2-5). When connecting the battery cable, it should be placed directly against the battery post or inverter terminal. Incorrectly installed hardware causes a high resistance connection which could lead to poor inverter performance, and may melt the cable and terminal connections. See Table 2-1 for the torque requirements.

Info: The DC terminal and Hex nuts on the CSW2012-X are made

of stainless steel, which has a high likelihood of galling or thread seizing while being tightened—causing the bolts to strip or to snap/ break off. To reduce this risk, use an anti-seize lubricant, tighten the fasteners slowly (at low rpms) without interruption, and apply only light pressure.

2.0 Installation

2.4.5 Wiring the Battery Bank

WARNING: Lethal currents will be present if the positive and

negative cables attached to the battery bank touch each other. During the installation and wiring process, ensure the cable ends are insulated or covered to prevent touching/shorting the cables.

Info: DO NOT connect the DC wires from the battery bank to

the inverter until 1) all DC wiring is complete, 2) the correct DC overcurrent protection has been installed, and 3) the correct DC voltage and polarity have been veriﬁ ed.

Depending upon the voltage of the batteries (6 or 12 VDC), the batteries must be wired in series, parallel, or series-parallel to provide the correct voltage. The interconnecting DC wires must be sized and rated exactly the same as those used between the battery bank and the inverter.

Place the batteries as close as practical to the inverter, preferably in an insulated and ventilated enclosure. Allow adequate space above the batteries to access the terminals and vent caps (as applicable). Also, allow at least 1” (2.5 cm) of space between the batteries to provide good air ﬂ ow. DO NOT mount the batteries directly under the inverter.

CAUTION: Install batteries in a well ventilated area. Batteries

can produce explosive gasses. For compartment or enclosure installations, always vent batteries to the outside.

Info: To ensure the best performance from your inverter system,

batteries should be of the same size, type, rating, and age. Do not use old or untested batteries.

2.4.6 Appliances and Run Time

The CSW2012-X inverter can power a wide range of household appliances including small motors, hair dryers, clocks, and other electrical devices. As with any appliance using batteries for power, there is a certain length of time that it can run—this is called “run time.” Table 2-3 below provides estimates of power consumption and run time for various appliances using a 12V-120AH battery bank.

Table 2-3, Appliance Power Consumption and Run Time

Load Consumption Estimated Run Time

Cordless Phone 5W 180 hrs

Clock/Radio 8W 135 hrs

Table Lamp 40W/60W 27 hrs/18 hrs

Freezer (8.8 cu ft) 80W 15 hrs

20” LCD TV 100W 11.5 hrs

Refrigerator (18 cu ft) 120W 9 hrs

Sump Pump (1/2 hp) 350W 3 hrs

Microwave (mid-size) 1000W 49 min

Coffee Maker 1200W 37 min

2.0 Installation

2.4.7 Wiring the Inverter to the Battery Bank

CAUTION: The inverter is NOT reverse polarity protected—if the

positive terminal of the battery is connected to the negative terminal of the inverter and vice versa, severe damage to the

occur and this will void the warranty. Before connecting the DC wires

from the batteries to the inverter, verify the correct battery voltage and polarity using a voltmeter. If necessary, color code the cables (with colored tape): red for positive (+), and white for negative (-) to avoid polarity confusion.

Info: The DC overcurrent device (i.e., circuit breaker or fuse) must

be placed in the positive (red) DC cable line between the inverter’s positive DC terminal and the battery’s positive terminal (red)—as close to the battery as possible. For maximum protection, install it within 18 inches (45 cm) of the battery.

Follow the steps below to wire the inverter to the battery bank:

1. Route an appropriately sized DC negative wire (marked white) from the negative terminal of the battery bank to the inverter’s negative terminal (Figure 1-3; Item 15).

2. Mount the fuse/disconnect assembly (or circuit breaker) as near as practical to the batteries and leave open (i.e., no power to inverter).

inverter will

WARNING: DO NOT close the DC circuit breaker or connect the

fuse to connect battery power to the inverter at this time. This will occur after the installation is complete.

CAUTION: If connecting live battery cables to the inverter DC

terminals, a brief spark or arc may occur; this is normal and due to the inverter’s internal capacitors being charged.

3. Route and connect an appropriately sized DC positive wire (marked red) from the inverter’s positive DC terminal (Figure 1-3; Item 14) to one end of the fuse/disconnect assembly (or circuit breaker).

4. Connect a short wire (same rating as the DC wires) to the other side of the DC circuit breaker (or one end of the fuse/disconnect assembly) and the other end of that short wire to the positive terminal of the battery bank (see Figure 2-1 for reference). This is essential to ensure even discharging across the entire battery bank.

5. Ensure the DC wire connections (on the batteries, inverter, and DC circuit breaker/fuse) are ﬂ ush on the surface of the DC terminals, and all hardware used to hold these connections are stacked correctly (see Figures 2-4 and 2-5). Verify all DC connections on the inverter are torqued correctly (see Table 2-1), and the total cable distance from the inverter to the battery is within the requirement of Section 2.4.1 (DC Wire Sizing).

6. Once the DC connections are completely wired and tested, coat the terminals with an approved anti-oxidizing spray.

7. If the batteries are in an enclosure, perform a ﬁ nal check of the connections to the battery terminals, then close and secure the battery enclosure.

8. Route an appropriately sized DC ground wire (see Table 2-2) from the inverter’s DC chassis ground connection to a dedicated system ground.

9. Once the entire installation is complete and all connections veriﬁ ed, close the fuse disconnect (or circuit breaker) to provide power to the inverter.

2.0 Installation

battery

post

nut

lock washer

DC cable

with ring lug

BATTERY

battery terminal

flat wa sher

bolt

DC cable lugs are flush

with the battery terminals.

Figure 2-4, DC Cable to Battery Terminals

M8-1.25 Hex nut

Verify that the

Lock washer

DC cable

with ring lug

Inverter’s DC

+ terminal

CAUTION:

CSW2012-X

Inverter

Ensure nothing is placed

between the DC terminal

and the ring lug.

Figure 2-5, DC Cable to Inverter’s DC Terminals

2.0 Installation

2.5 AC Wiring

This section provides information on how to make the AC connections to the inverter using the correct AC wire size and corresponding overcurrent protection.

2.5.1 Pre-AC Wiring Requirements

WARNING: DO NOT connect the inverter’s output to an AC power

source. This could cause severe damage to the inverter and is not covered under warranty.

CAUTION: Before installing any AC wiring, review all safety

information in this manual to ensure a safe and long-lasting system.

• Always use properly rated circuit breakers. If using an electrical sub-panel,

circuit breakers can be moved from the main electrical panel to the subpanel only if the breakers are also listed to be installed in the sub-panel.

• AC wiring must be copper wire and be approved for the application (i.e.,

residential, RV, or marine wiring).

• The wire sizes recommended in this manual are based on the ampacities

given in Table 310.16 (in conduit) or Table 310.17 (in free air) of the National Electrical Code, ANSI/NFPA 70, for 75ºC (167ºF) copper wire based on an ambient temperature of 30ºC (86ºF).

2.5.2 AC Wire Size and Overcurrent Protection

If wiring to the AC input and output terminals, the wiring must be sized per the local electrical safety code requirements to ensure the wire’s ability to safely handle the inverter’s maximum load current. The AC wiring must be protected from short circuits and overloads by an overcurrent protection device and have a means to disconnect the AC circuits. AC overcurrent protection is not included in the inverter and must be provided as part of the inverter installation. The AC overcurrent protection device must be a circuit breaker or a fuse/disconnect and be properly sized and branch circuit rated for the wire it is protecting and the appliances being powered.

If you need to supply more than 20A of current to the loads or if the GFCI protection is not required, then wire to the L1/N1 output terminals. When wired to the L1/N1 output terminals, the pass-thru capacity of the CSW2012-X is limited by the internal transfer relay contacts, which is 30A (3000W) maximum for resistive loads (lower for inductive loads such as electric motors, etc.). For a 30-amp pass-thru capability, a 30-amp branch rated circuit breaker is required on the AC input, which corresponds to a minimum cable size of #10 AWG (5.3 mm

If wiring to the L2/N2 output terminals (GFCI protected), the pass-thru capacity of the CSW2012-X inverter is limited to 20 amps (2400W) maximum by a supplementary breaker inside the inverter. For a 20-amp pass-thru capability, a minimum cable size of #12 AWG (3.3 mm

Note: The AC 2 (L2/N2) output terminals are connected to the load side of the GFCI receptacle, and are under the influence of the receptacle’s “Test” and “Reset” buttons.

) is recommended.

2.0 Installation

2.5.3 AC Neutral to Safety Ground Bonding

Electrical safety standards for wiring RV/truck and marine installations in the

United States require the neutral and safety ground to be connected at the AC source; whether it is the utility feed in the RV Park/Marina, an inverter, or a generator. This is to establish a specification that maximizes the possibility that a circuit breaker will activate if a hot wire-to-ground fault occurs. These standards also require that the AC neutral be connected to safety ground (often called a “bond”) in one, and only one, place at any time. The single bond is established in order to make the electrical panel’s neutral line safe, by connecting it to ground. Without this bond, the neutral can have up to 60 VAC with respect to ground. On the other hand, if more than one bond is established, currents can circulate between neutral and ground and cause “ground-loop” currents. These ground-loops can trip GFCIs, cause an electric shock hazard, and may be the reason for other annoying side effects.

In applications where you are using an inverter as one of your AC sources along with another AC source (i.e., utility power or generator), there is the potential of having multiple connections (bonds) between neutral and ground. Therefore, you must ensure that the inverter does not also connect the neutral-to-ground while the other AC source is actively powering the inverter loads. This can be prevented if your inverter is equipped with automatic neutral-to-ground switching.

WARNING: In most electrical systems, the neutral-to-ground

bond is located in the main utility service entrance panel. Remove any bond downstream from the inverter to prevent multiple bonds. If there is an inverter sub-panel—separate from a main electrical panel—it should have a removable wire that allows the neutral bus to be unbonded from the ground busbar.

CAUTION: The AC input neutral terminal is electrically isolated

from the AC output neutrals terminals (N1/N2) while inverting. This is related to the neutral-ground bonding requirement and helps prevent ground-loops. The input neutral and output neutrals must not an any time be connected together or damage to the inverter may occur.

The CSW2012-X specifically work in multiple source or mobile (i.e., truck/RV/boat) applications.

CSW2012-X inverter uses an internal relay that automatically connects

The the AC neutral output terminal to the vehicle/boat’s ground while inverting (Inverter mode) to provide the neutral-to-ground bond. However, when an external AC source (i.e., shorepower or a generator) is connected, another neutral-to-ground connection is introduced in the system. When the

CSW2012-X inverter is connected to this external AC source and goes into

By-Pass mode, the internal relay automatically opens the neutral-to-ground connection. This design keeps two neutral-to-ground connections from occurring at the same time, thereby preventing an electrical shock hazard between the vehicle/boat’s neutral and the external AC source’s neutral.

inverter has automatic neutral-to-ground switching to

2.0 Installation

2.5.4 AC Terminal Block Connections

The CSW2012-X has a two-pole AC input terminal block, a four-pole AC output terminal block and one AC ground screw to connect the inverter’s AC input and output wiring. These terminal blocks (see Figure 1-2, Items 9 and 10) allow a service/distribution panel (main panel) to be wired to the inverter’s input, and also allows a dedicated panel (sub-panel) between the inverter’s output wiring and the AC loads. To access and view the AC terminal blocks and ground screw, remove the four Phillips screws holding the AC wiring access cover (see Figure 1-1, Item 1).

Each connection on the AC terminal block is rated to accept one #14 to #6 AWG (2.1 to 13.3 mm stranded wires. Each connection uses a M3.5 slotted head screw, and the maximum tightening torque is 16 lbf-in (1.8 N-m).

CAUTION: The AC input neutral terminal (N) is electrically isolated

Info: To comply with ABYC requirements for marine installations, the

AC terminal blocks have a stainless steel wire protector to prevent wire damage from the set-screw.

) CU stranded wire, or two #12 AWG (3.3 mm2) CU

The AC ground uses a Phillips head screw. If wiring multiple grounds (i.e., input and output ground connections), use a pressure or mechanical connector to attach the wires to the AC ground screw.

2.5.5 AC Conductor Wiring Steps

The following sections are basic guidelines for installing and connecting the AC wiring to and from the CSW2012-X inverter.

WARNING: Before making any AC connections, make sure the

inverter is disconnected from the battery and no AC power is

connected to the inverter. Before wiring: a) Remove the AC access cover (Figure 1-1, Item 1) by unscrewing the four

screws located at the front of the AC compartment cover—to access the AC terminal blocks.

b) Place strain relief clamps on the AC openings (Figure 1-2, Item 7). c) After all wires are routed through the AC openings on the inverter, tighten

the strain relief clamp securely on the wires—always leave a little extra slack in the wiring.

Wiring the Inverter AC Input

1. Route the AC input wires (hot, neutral, and ground) from the AC electrical main panel through one of the strain relief clamps on the inverter.

2. Connect the hot wire (BLACK) from the main panel’s dedicated 30A

breaker to the inverter’s AC input “L” terminal. Note: A 20A breaker can be

used if only connecting the L1/N1 output terminals (see Wiring the Inverter AC Output section on next page).

3. Connect the neutral (WHITE) from the main panel’s neutral busbar to the inverter’s AC input “N” terminal.

2.0 Installation

Wiring the Inverter AC Output

WARNING: DO NOT connect the inverter’s output to an AC power

source. This could cause severe damage to the inverter and is not covered under warranty.

The AC Output has three types of AC connections:

• Use the GFCI outlet to power AC loads – This configuration does not require AC output installation. Plug the AC load into the GFCI outlet. During By-Pass mode, the AC output is limited by the rating of the inverter’s 20A breaker.

• Hardwire the L2/N2 AC Output terminals (with GFCI Protection) – This configuration connects the AC loads directly to the output (load side) of the GFCI outlet. The AC output is limited by the rating of the inverter’s 20A breaker and is also connected to the GFCI outlet’s “Test” and “Reset” buttons.

• Hardwire the L1/N1 AC Output terminals – This configuration connects the AC loads directly to the output side of the internal transfer relay. The AC output is limited to 30 amps (the rating of the transfer relay contacts).

If hard-wiring the AC output wires:

1. Route the AC output wires (hot, neutral, and ground) from the AC electrical

sub-panel through the other strain relief clamp on the inverter.

2. Connect the hot (BLACK) wire from the inverter’s hot/line (L1 or L2)

output terminal to the sub-panel’s main breaker.

3. Connect the neutral (WHITE) from the inverter’s neutral (N1 or N2) output

terminal to the sub-panel’s neutral busbar.

Wiring the Inverter AC Ground

1. Connect the ground (GREEN) wire from the main panel’s ground busbar

and the ground (GREEN) wire from the sub-panel’s ground busbar to the inverter’s AC GROUND terminal.

AC Wiring Inspection

1. Verify all wire runs are secured. When installed in a mobile installation,

use wire ties or other non-conductive fasteners to prevent chafing or damage from movement and vibration.

2. Verify strain reliefs or grommets are in place to prevent damage to the

wiring or conduit where it passes through walls/bulkheads or other openings.

3. After verifying all AC connections are correct, ensure all inverter AC

terminals are torqued correctly.

4. Replace the AC wiring access cover and the covers on the main electrical/

distribution panel.

2.0 Installation

CSW2012-X

Series Inverter

See NOTE below

OFF

120 VAC

Sub- P ane l and O utlet

(Inverter Loads)

Max imum 2 0-amp bre aker

(single pole) required to

inverter AC input

NOTE: In mobile

installations, the neutral is

typically not connected to

ground in main panel.

OFF

Main Pa ne l

(Utility/Generator

Input)

OFF

Figure 2-6, AC Wiring (20A By-Pass and GFCI output))

OFF

put)

CSW2012-X

Series Inverter

2.0 Installation

See NOTE below

OFF

Max imum 3 0-amp bre aker

120

VAC

Sub- P ane l and O utlet s

(Inverter Loads)

Figure 2-7, AC Wiring (30A By-Pass)

(single pole) required to

inverter AC input

NOTE: In mobile

installations, the neutral is

typically not connected to

ground in main panel.

OFF

Main Pa ne l

(Utility/Generator

2.0 Installation

2.5.6 Removing the Display Panel

The display panel on the inverter can be removed and installed in a different location using a longer 6-pin standard telephony cable (also referred to as a RJ12 cable). See Figure 2-8.

• Remove the 2 screws at the front of the display panel, and then disconnect the small cable from the inverter.

• Install the remote cable in your desired location and connect one end of the remote cable to the inverter and the other end of the cable to the display panel. Please note polarity.

Remote cable

To locate the display panel in a remote location, the longer cable needs to be a 6-conductor telephony type with 6P6C (6-position/6-conductor) connectors on each end. With this cable, when the 6P6C connectors are held side by side with both of the connector tabs facing the same way, the color of the conductors in each connector are the opposite from top to bottom as shown in Figure 2-8.

6-conductor telephony type

opposite colors top to bottom

(tabs facing toward you)

4 3

TAB

same

col or

same col or

4 3

TAB

Figure 2-8, Remote Cable

2.0 Installation

2.6 Testing the Inverter

Before proceeding, you must ﬁ rst test whether the inverter was successfully installed. Use the functional test below to ensure the inverter is functioning properly.

2.6.1 Inverter Functional Test

After all electrical connections to the inverter, batteries, AC source, and loads

(using a sub-panel) have been completed, follow these steps to test the

installation and the inverter’s operation.

1. Check the battery voltage and polarity before connecting the batteries to the inverter. Use a multimeter to verify 10.5 to 15.5 VDC at the batteries’ positive and negative terminals.

2. Apply battery power to the inverter by switching the DC disconnect on (or close the DC circuit-breaker)—the inverter will remain off.

3. Prior to turning on the inverter, make sure all connected loads (e.g., appliances) are switched off or disconnected from the AC outlets.

4. Press and hold the Power button until a beep sound is heard (about 1 second)—to turn the inverter on. Verify that the inverter’s revision and version numbers of the inverter as well as the measured battery voltage are shown on the display, and the Status light comes on (amber). This indicates the unit is in Inverter mode—running from battery power.

5. Check the output voltage of the inverter by connecting a multimeter to the outlets powered by the inverter. Verify the voltage is from 104 to 127 VAC.

6. Plug a small AC load (e.g., 40W light bulb) into the GFCI’s outlet. Turn it on and verify it comes on. Continue to keep the load connected and turned on.

Note: If the bulb does not light, the GFCI may have tripped and needs to be reset.

7. Press and hold the Power button until a beep sound is heard (about 1 second)—to turn the inverter off. The inverter’s status indicator and the connected load should go off.

8. Apply AC power to the inverter’s AC input. After the AC input power is qualiﬁ ed (approximately 5 seconds), the inverter will automatically come on. Verify that the display begins showing the revision (r#.#) and the connected load comes on, and the Status light begins to blink (amber). This indicates the unit is connected to AC power. After approximately 15 more seconds, the inverter will now be in By-Pass mode—transferring the incoming AC power through the inverter to the inverter’s AC output and powering the connected load. When this happens, verify the inverter’s status indicator turns green and the connected load stays on.

9. Disconnect the incoming AC power to the inverter and verify the connected load remains on. The inverter is now in Inverter mode.

If the inverter passes all the steps, the inverter is ready for use.

If it fails any of the steps, refer to the troubleshooting information in Section 4.0.

3.0 Operation

The CSW1012-X inverter has two normal modes of operation; Inverter mode, which powers your loads using the batteries, and By-Pass mode, which transfers the incoming AC power (i.e., shorepower or a generator) to power your loads.

3.1 Inverter Mode

In Invert mode, the inverter supplies AC power to your appliances by inverting the DC power from the battery. The amount of time the inverter can provide power is directly related to the capacity of the battery (or battery bank).

When the CSW2012-X is first connected to battery power, it is off. To turn the inverter on, press and hold the Power button until a beep sound is heard (about 1 second).

OFF – When the inverter is OFF, no power is used from the batteries to

power the AC loads, and the status LED will be OFF.

ON – When the inverter is turned ON, it operates either by “searching” or

“inverting”, depending on the connected AC loads and the inverter PS setting (see Table 3-2).

Info: The factory default setting for Inverter mode is PS1, which

turns the Search mode feature off.

Searching – The Search feature is provided to conserve battery power when

AC power is not required. If this feature is enabled, the inverter pulses the AC output looking for an AC load (i.e., electrical appliance). Whenever an AC load (greater than 10 watts) is turned on, the inverter recognizes the need for power and automatically starts inverting. When there is no load (or less than 3 watts) detected, the inverter automatically goes back into Search mode to minimize energy consumption from the battery bank.

Inverting – When the inverter is on and not searching, the CSW2012-X uses

the DC power from the battery to supply 120 VAC power to your loads. The amount of time the inverter can be inverting and providing power is directly related to the amount of AC loads that are connected, and the capacity of the battery bank.

3.2 By-Pass Mode

If AC power from an external source (utility or generator) is connected and qualified on the inverter’s AC input, the inverter will automatically go into By-Pass (pass-through) mode and pass the incoming AC power through the inverter to power your AC loads. If there is a power failure or the AC power is disconnected, the inverter PS setting (see Table 3-2) determines how the inverter will respond.

Info: The factory default setting for Inverter mode is PS1, which

enables the inverter to automatically transfer back to the Inverter mode when the AC power is removed.

Transfer time – When the AC power fails or is disconnected, the relay

transfers from By-Pass mode to Invert mode in less than 30 milliseconds. When switching from Invert mode to By-Pass mode, the inverter waits approximately 20 seconds to ensure the grid is stable (or the generator is up to speed) and then makes the transfer.

3.0 Operation

3.3 Display Panel Operation

This section provides information on the display panel (Figure 1-1, Item 5).

Figure 3-1, Display Panel

3.3.1 LED Indicators

The LED indicators on the front display panel are used to indicate the inverter’s status. Use Table 3-1 to determine the inverter status.

Table 3-1, Display Functions/Statuses

Status LED Display LED Display Function/Status

Green (solid)

Amber (solid)

Amber (ﬂ ashing)

Red (solid) OFF E01-E12 Unit has shut down. Display

Green 12.5 By-Pass mode. Display shows

battery voltage in DC volts.

Green

12.5

Amber 0.80 Inverte) mode. Inverter is

Inverter mode. AC input is detected and the unit will switch to By-Pass mode within 20 seconds.

Inverter mode. Inverter running and display shows battery voltage in DC volts.

running, and display shows output power in kW (800W as shown). The Select button has to be pressed.

shows an error code (see error code reference chart below).

3.3.2 Understanding the Power and Select Buttons

A beep sound occurs every time the Power or Select button is activated (i.e., pressed for 1 second).

Power button – Turns the inverter On/Off during Inverter mode. Press and

hold it for 1 second to turn the inverter either ON or OFF.

Note: The Power button can be used to turn the AC output off during AC ByPass mode with PS4 setting—without the need to disconnect the AC input as per the PS1 setting. See Table 3-2 or Section 3.3.3.

Select button – Used to check the inverter settings. Press the Select button

several times to scroll down to view the inverter’s present setting.

3.0 Operation

3.3.3 Inverter Settings (enter Setting Mode)

To change an inverter setting, enter Setting mode by pressing the Power and Select buttons together for about 5 seconds until a beep is heard. Use Figure 3-2 to set the inverter settings. See Table 3-2 for information on the different settings available for the inverter.

Unit in normal operatio n

12.8

= POWER pushbutton

Press & together x5 sec to

enter menu mode to change setting

Press x1 sec to

move to next menu

Press x1 sec to

move to next menu

Press x1 sec to

move to next menu

pressed within the l ast 5 seconds.

Press x1 sec

Press x5 sec to set selection and to exit to the next menu

Press x1 sec

Press x5 sec to set selection and to exit to the next menu

Press x1 sec

Press x5 sec to set selection and to exit to the next menu

= SELECT pushbutton

PS0

AL0 AL1

SdL SdH

PS1

Press x1 sec

to change setting

Press x1 sec

t o cha ng e se tti ng

Press x1 sec

t o cha ng e se tti ng

PS2 PS4

Display will EXIT menu mode if either or are not

Press x1 sec to

move to next menu

Press x1 sec

Press x5 sec to set selection and to exit to the next menu

Fact ory Default

EXIT

Function Menus

Figure 3-2, Inverter Setting Flow Chart

Function Set Menus

3.0 Operation

Table 3-2, Inverter Settings

Inverter Settings

PS0 The inverter is disabled. The AC Output terminals are getting power

from the utility (AC input) only. When utility power is not available, the unit will not provide an AC backup function from the inverter and the display will automatically turn off in approximately 10 seconds. When the Power button is pressed again, the display will turn on for another 10 seconds.

To enable the inverter or to turn on the backup function, the PS0 setting has to be changed to a different setting.

PS1 The inverter is in By-Pass mode with Search mode set to OFF. The

unit will provide an AC backup function when utility power is not available.

PS2 The inverter is in Standby mode with Search mode set to ON. The

unit will provide a continuous backup function only when utility power is unavailable AND the connected output load is >10W. Once it is on, the unit will automatically return to Search mode and turn off when the connected AC load drops to <3W.

Note: During Search mode, the inverter turns on every few seconds for a few AC cycles to check on the 10W power consumption.

PS3 Not used.

PS4 Performs same function as PS1. The Power button can be used to

turn AC output on and off, even with AC input power being present in By-Pass mode.

When the unit is turned off in By-Pass mode using the Power button, the display will continue to show battery voltage and the Status LED will turn off.

Battery Under Voltage Settings

SdL Battery under-voltage setting is set to LOW (normal operation).

Under-voltage alarm: Under-voltage alarm recovery: Under-voltage shutdown: Under-voltage recovery:

SdH Battery under-voltage setting is set to HIGH (setting to avoid

battery over-discharge when connected to a car start battery).

Under-voltage alarm: Under-voltage alarm recovery: Under-voltage shutdown: Under-voltage recovery:

Alarm Settings

11.0 VDC

11.3 VDC

10.5 VDC

12.0 VDC

12.1 VDC

12.3 VDC

11.8 VDC

12.6 VDC

AL0 Fault and warning audible alarm is disabled. Display panel only

shows error code, and the audible alarm will not sound.

AL1 Audible alarm will sound when a fault or warning occurs.

Factory Default Settings

Fd Resets all settings to Factory default settings (PS1, SdL, AL1).

3.0 Operation

3.4 Understanding Loads

The inverter can power most loads within its power rating, however, there are special conditions that can cause a load to behave differently than expected. Following are some common problems encountered when using this inverter.

USB loads – When using the USB connector, be sure that the device you will

be connecting will accept 5 volts (≤ 750mA) and can be charged or powered using another power source. The USB port can safely power and charge alot of devices such as: MP3 players, mobile phones, and portable video game players. However, some devices such as GPS receivers and some cameras may not work and may even be damaged. Refer to the owner’s guide for each device to determine its compatibility.

Motor loads not starting – Some appliances, particularly those with

induction motors, require a much higher start-up surge than they do when running. Pumps, freezers and refrigerators (compressors) are the most common. The inverter may not be able to start some of these appliances even though their rated current draw is within the inverter’s limits. If a motor-operated appliance refuses to start, observe the VOLTS indicator on the digital display while you are trying to start the appliance. If the display shows a battery drop below 11 volts while the inverter is trying to start the motor, this may explain why the appliance won’t run. Make sure the length and diameter of the battery cables are appropriate. Check that the battery connections are good and that the battery is fully charged. If the cables are sized correctly, the connections are good, and the battery is charged, you may need a larger battery bank (see Loads turning on and off).

Loads turning off and on – If a load starts but quickly turns off, then the

battery may not be able to deliver the necessary amperage to drive the load. If the battery bank cannot deliver the necessary amperage to drive a heavy load, the inverter will shut OFF due to low voltage (<10.5 VDC). The battery voltage can then slowly rise back above the low voltage reconnect voltage (11.8 VDC) causing the inverter to resume operation. As soon as the heavy load draws the batteries down, this cycle will continue unless the load is reduced or more batteries are added.

Loads too large – Although the CSW2012-X inverter can provide high

surge power up to two times the rated output power, some appliances may still trigger the inverter shutdown/protection system. In these instances, a higher power inverter may be required.

Running several loads at once – Sometimes the total surge requirement

of all the loads is higher than the CSW2012-X inverter can deliver. You may want to turn them on individually to ensure that the inverter does not have to deliver the starting current for all the loads at once.

4.0 Troubleshooting

When the inverter shows an error code, use Table 4-1 to determine what condition triggered the error/warning code and what corrective action is needed. Use Table 4-2 to troubleshoot your inverter based on the symptoms.

Table 4-1, Inverter Error Codes

Code Condition Corrective Action

E01 Input battery voltage is

too low (<10.5 VDC). If it happens in By-Pass mode, the unit continues supplying AC output power. Otherwise, the AC output is shut down.

E02 Input battery voltage is

too high—the unit has shut down.

E03 AC output has sensed an

overload or short circuit and was shut down.

E04 Internal temperature is

too high—the unit has shut down.

E05 Input battery voltage is low

and has initiated a warning alarm (@11.2 VDC).

E06 Inverter mode. The

connected AC output load is large and is close to the shutdown limit.

Immediately recharge the battery, and then restart the unit. Make sure the battery is connected to the unit.

Check battery voltage, or determine if any external charger is connected to the battery bank.

Check the load connected to the output. Reduce the load and then restart the unit.

Turn unit off, and then wait 15 minutes before restarting. Ensure the unit’s air ﬂ ow and fans are not blocked and ensure the unit’s fans are running.

Recharge the battery—the unit will shut down shortly.

Reduce the load.

E07 Internal temperature is

high and is close to the thermal shutdown limit.

E08-11 Not used.

E12 Internal transfer switch

temperature is high—a unit shutdown occurs.

Reduce the load and check if the unit’s ventilation is blocked.

Reduce the load and check if the unit’s fans are running and if the fans/ventilation are blocked.

4.0 Troubleshooting

Table 4-2, Troubleshooting

Problem Possible Cause/

Condition

AC output turns on and off.

No AC output. Status LED is red.

AC output only on L1/L2 output terminals.

No AC output. All the LEDs and the display are off.

Search mode (PS2) enabled, and the AC load is <10W.

Unit has shut down. Check the error code shown on the display.

The inverter’s GFCI or 20A thermal breaker has tripped.

The unit is off.

Note: The Power button’s on/off action takes place at its release moment and after a “beep” is heard.

Solution

Normal condition when in Search mode. The load connected must be below the AC load sense threshold of 10W; so the power output will be pulsed every 10 sec for checking the load.

Verify the error condition, and then make the necessary correction.

AC Output L1/N1 terminals are connected directly to the inverter’s output. The terminals are not under the tripping inﬂ uence of either the GFCI or the 20A thermal breaker on the unit.

Turn the unit on by pressing the Power button (when the unit is in Inverter mode, or in By-Pass mode if the PS4 parameter is set). Otherwise, the unit should always automatically turn on at the moment AC input power is connected.

No AC output to the GFCI and L2/N2 output terminals. The Status LED is green or amber.

No power coming into the unit.

GFCI tripped. Check the AC load for a

Note: The GFCI contains a lockout feature that prevents a RESET if there is no power being supplied to it. Therefore, make sure to force By-Pass mode or do not have either the PS0 or PS2 setting when in Inverter mode, before resetting.

The unit’s 20A thermal breaker is tripped.

Check the battery DC fuse, the disconnect switch (if installed), and the AC input source. The AC input branch breaker is either tripped or turned off.

ground fault, and reset the GFCI. Make sure the loads do not have the neutral and ground bonded.

If no load plugged in to GFCI, there may be humidity inside. Try drying with a hairdryer. Ensure unit is in a dry area.

Check loads and reset the 20A thermal breaker.

4.0 Troubleshooting

Problem Possible Cause/

Condition

During AC input power outage, there is no AC output power when battery power is available.

E01 or E05 alarm activates in By-Pass mode.

Unit is set to “NonBackup” mode (PS0) and AC input power is not available.

Unit is operating normally. The alarm indicates the battery voltage is low or the battery is not connected at all, and there are external DC loads drawing currents from the inverter’s currentlimited trickle battery charger—enough to trigger either the E01 or the E05 alarm. However, the unit continues supplying AC output power.

Solution

Change the PS0 setting to a different setting if you want to turn the inverter on. With the PS0 setting, the inverter is completely off. When the AC input power is not available and the Power button is pressed once, the display and LEDs remain working for only about 30 seconds. With this setting, the unit provides AC output power only when AC input power is available.

Charge/connect the battery bank or disable all the audible alarms with the AL0 setting.

Note: The main purpose of the battery charger is to keep the unit’s control electronics working even without a battery connected. Its power is not necessarily enough to work as a real trickle charger for your battery bank. Therefore, do not consider the unit as an inverter & charger.

DC voltage is measured at the DC terminals without the battery being connected.

This is normal. The voltage is supplied by the inverter’s trickle battery charger with current-limiting protection.

You can keep the battery disconnected. However, if the DC Input terminals of the unit are connected to a common DC bus being shared by other DC loads, a 12V back feeding to those DC loads can occur when the DC bus is disconnected from the common battery bank. In that case, the corresponding drawing current may trigger the E01 or E05 alarms. In cases where back feeding is not desirable, consider using a separate battery bank disconnect switch for the unit.

4.0 Troubleshooting

Problem Possible Cause/

Condition

Heavy spark when connecting the battery power.

The unit’s 20A thermal breaker trips even when the unit is not in an overload condition.

The unit cannot be turned off when using the Power button in By-Pass mode.

This is a normal condition. It occurs when the internal DC input capacitors (ﬁ lter) are discharged after the battery was disconnected for at least 30-40 seconds.

This happens mainly in By-Pass mode when the maximum rating of the unit’s breaker is exceeded.

This is normal. The unit has a PS1 (factory default) setting. Use the procedure on the right to turn off the unit.

Note: The Power button’s on/off action takes place at its release moment and after a “beep” is heard.

Solution

Due to a sudden high DC surge (inrush) current that charges the internal big capacitors and quickly disappears (milliseconds) once capacitors get charged. Does not represent any drawing current from the battery.

For maximum capacity, use AC 1 (L1/N1) Output terminals which are out of the tripping inﬂ uence of the GFCI outlet and the unit’s 20A thermal breaker. Otherwise, do not exceed the current ratings on the GFCI outlet and AC 2 (L2/ N2) Output.

To turn unit off when in ByPass mode: 1) disconnect the AC input that feeds the unit— forcing the unit into Inverter mode. 2) push and hold the Power button for 1 sec. (after hearing beep) to turn unit off.

Set unit to PS4 mode. The Power button can now be used to turn the unit on and off when in either By-Pass or Inverter modes.

The display doesn’t work as expected (no display or 888 shows) and the operability of the unit may be affected.

A loose contact or pin-out problems in the RJ12 detachable display panel cable may have occurred.

Excessive EMI/ RFI interference (electromagnetic induction or electromagnetic radiation) emitted from an external source.

A short (7”) RJ12 cable is used when the detachable display panel is unit-mounted (factory default). Alternatively, a 25ft. RJ12 cable is provided for installing the display further away. Swap cables to see if it makes a difference.

Check the pin-to-pin conductivity of the cable and the corresponding pin-out as shown in Figure 2-8.

Avoid running the cable close to motors, power contractors/ relays, ballasts, transformers, or high voltage devices. In high noisy environments, consider using metal conduits or a shielded cable grounded at one end, and/or reduce cable length.

4.0 Troubleshooting

Problem Possible Cause/

Condition

The GFCI outlet trips as soon as the load is connected to either L2/ N2 AC Output terminals or into the GFCI outlet.

The input battery undervoltage warning (E05) and/or shutdown alarm (E01) occurs in advance even when the battery voltage seems to be OK.

There is a neutral-toground bonding in the load side.

Make sure you are measuring the voltage directly at the DC Input terminals of the unit—check the possible voltage drop between the battery posts and the unit’s input terminals.

Solution

Locate and remove the neutral-to-ground bonding on the AC load side. If the output of the inverter is connected to an existing distribution panel/ box, make sure the neutralto-ground connections inside the panel/box use separate bus bars—the neutral one is isolated from the chassis ground. Otherwise, consider using the AC 1 (L1/N1) Output.

Excessive voltage drop between the battery bank and the inverter may be due to high resistance of the DC wires, the battery disconnect switch is turned off, or a faulty fuse/DC breaker. Make sure to use the recommended wire gauge and length. Try to use fuses (or DC breakers) with very low voltage drop (e.g., ANL type fuses, etc.).

Battery bank with high internal resistance, resulting in a voltage drop proportional to the DC current draw from the unit.

Battery bank is getting discharged.

Too much battery voltage drop due to an excessive draw of current in relation to the battery bank capacity. Increase the battery bank capacity (i.e., add more batteries in parallel) and/or reduce the load being fed by the inverter.

Battery damaged and not able to keep a good state of charge. Replace the battery (or batteries).

This is a normal condition. An E05 warning followed by an E01 shutdown occurs while the battery bank is getting discharged. Charge the battery bank.

4.0 Troubleshooting

Problem Possible Cause/

Condition

The input battery undervoltage warning (E05) and/or shutdown alarm (E01) occurs in advance even when the battery voltage seems to be OK. (Cont.)

Make sure to measure the battery voltage just before the E01 battery undervoltage shutdown in Battery (Inverter) mode occurs, and compare it with the corresponding voltage threshold in the speciﬁ cations table (allow +/- 5% of tolerance).

The E05 warning and E01 shutdown alarm occurs well in advance due to the SdH setting.

Solution

Just after the E01 occurs, the battery voltage rapidly increases since the battery is not under a load condition after the inverter shutdown. This is normal in all the battery banks and can confuse the user thinking the under-voltage shutdown that triggers the E02 alarm occurs in advance at higher voltage thresholds than the ones speciﬁ ed.

If you want to extend the run time of the battery bank as much as possible without the need to keep enough battery state of charge for engine cranking purposes, make sure to set the under-voltage shutdown threshold to a low values setting (SdL = factory default setting) other than the SdH.

5.0 Speciﬁ cations

Table 5-1, CSW2012-X Speciﬁ cations

5.0 Speciﬁ cations

Model

CSW2012-X

Electrical Speciﬁ cations

Continuous Power Surge Power (Peak)

2000 W

4000 W AC Output Voltage (12.5V) 120 VAC RMS ± 5% AC Output Current 16.6 AAC AC Output Voltage Range 104-127 VAC AC Output Frequency 60 Hz ± 0.5 Hz AC Output Waveform

) Pure sine wave (<3% THD)

AC Output Receptacle NEMA 5-15, Dual GFCI with LED Optimum Efﬁ ciency >90% DC Input Voltage (Nominal) 12.5 VDC DC Operation Voltage Range

10.5 - 15.5 DC Input Current (Full Load) 38 DCA DC Input Current (No Load) <1.5 ADC DC Output (USB port) 5V, 750 mA

Protection

Low Voltage Alarm (Recovery) 11.0 VDC (11.3 VDC) Low Voltage Shutdown (Recovery) 10.5 VDC (12.0 VDC) High Voltage Shutdown

15.5 VDC

AC Transfer Switch

Transfer Time < 30 ms Transfer Relay Rating 30A (resistive load) AC Output: L1/N1 (Hardwire) 30A Max AC Output: L2/N2 (Hardwire) 20A Max AC Output: GFCI Outlet 20A Max

Display Panel

LED Status Indicators Status and Display Digital display DC Volts in, power out, error codes

General Speciﬁ cations

Operating Temperature 32°F to 104°F (0°C to 40°C) Inverter Weight 13.0 lb (5.9 kg) Inverter Size (L x W x H) 17.1 x 9.1 x 4.5” (43.5 x 23 x 11.5 cm) Warranty One Year

Regulatory Approval

Conforms to UL STD 458, Certified to CSA STD C22.2 No. 107.2-01

EMI: FCC Part 15 Class B

1: Specifications met when DC voltage at nominal (12.5V) and temp at 25°C. 2: Surge ratings are based on resistive load (output voltage may drop). 3: Damage can occur if input voltage exceeds 16 VDC.

Appendix

6 volts

(200 AHrs)

6 volts

(200 AHrs)

overcurrent protection

12 volt battery bank (total capacity = 200 AHrs)

12 VDC

Inverter

Appendix A - Battery Information

Battery Bank Sizing

The size of the battery bank determines how long the inverter can power the AC loads without recharging. The larger the battery bank, the longer the run time. Size your battery bank to the system’s AC load requirements and the length of time required to run the load from the batteries. In general, the battery bank should not be discharged more than 50%.

Battery Types

Batteries are available in different sizes, amp-hour ratings, voltage, and chemistries; they also come in liquid or gel, vented or non-vented, etc. They are also available for starting applications (such as an automobile starting battery) and deep discharge applications. Only the deep cycle types are recommended for inverter applications. Choose the batteries best suited for the inverter installation and cost. Use only the same battery type for all batteries in the bank. For best performance, all batteries should be from the same lot and date. This information is usually printed on a label located on the battery.

Battery Conﬁ guration

The battery bank must be wired to match the inverter’s DC input voltage speciﬁ cations (12 VDC). In addition, the batteries can be wired to provide additional run time. The various wiring conﬁ gurations are:

Series Wiring

Wiring batteries in a series increases the total battery bank output voltage. A series connection combines each battery in a string until the voltage matches the inverter’s DC requirement. Even though there are multiple batteries, the capacity remains the same. In the example below (Figure A-1), two 6 VDC/200 AHr batteries are combined into a single string – resulting in a 12 VDC/200 AHr bank.

Figure A-1, Series Battery Wiring

Appendix

12 volt battery bank (total capacity = 400 AHrs)

overcurrent

protection

12 volts

(100 AHrs)

12 volts

(100 AHrs)

12 volts

(100 AHrs)

12 volts

(100 AHrs)

12 VDC

Inverter

overcurrent

protection

String 2

String 1

12 volt battery bank (total capacity = 400 AHrs)

12 VDC

Inverter

6 volts

(200 AHrs)

6 volts

(200 AHrs)

6 volts

(200 AHrs)

6 volts

(200 AHrs)

Parallel Wiring

Wiring the batteries in parallel increases the total run time the batteries can operate the AC loads. A parallel connection combines overall battery capacity by the number of batteries in the string. Even though there are multiple batteries, the voltage remains the same. In the example below (Figure A-2), four 12 VDC/100 AHr batteries are combined into a single 12 VDC/400 AHr battery bank.

Series-Parallel Wiring

A series-parallel conﬁ guration increases both voltage (to match the inverter’s DC requirements) and capacity (to increase run time for operating the loads) using smaller, lower-voltage batteries. In the example below (Figure A-3), four 6 VDC/200 AHr batteries are combined into two strings resulting in a 12 VDC/400 AHr battery bank.

Figure A-2, Parallel Battery Wiring

Figure A-3, Series-Parallel Battery Wiring

Appendix

Appendix B - Preventive/Periodic Maintenance

Recommended Inverter and Battery Care

The CSW2012-X inverter is designed to provide you with years of trouble-free service. Even though there are no user-serviceable parts, it is recommended that every 6 months you perform the following maintenance steps to ensure optimum performance and extend the life of your batteries.

WARNING: Prior to performing these checks, switch both the AC

and DC circuits OFF.

• Visually inspect batteries for cracks, leaks, or swelling – replace if necessary.

• When possible, recharge your batteries when they are about 50% discharged or earlier. This gives them a much longer life cycle than recharging when they are almost completely discharged.

• Use baking soda to clean and remove any electrolyte spills or buildups.

• Check and tighten all battery hold down clamps.

• Clean and tighten all DC terminals (battery and inverter) and connecting cables.

• If used, check and ensure the screws on the AC input terminals are tight.

• Check and ﬁ ll battery water levels (Liquid Lead Acid batteries only).

• Check individual battery voltages (replace those that vary more than 0.3 VDC of each other).

• Check all cable runs for signs of chaﬁ ng – replace if necessary.

• Check the inverter’s cooling vents – clean as necessary to prevent the accumulation of dust and dirt.

RV/Marine Off-Season Storage

When placing your coach or boat into seasonal storage, it is recommended that you perform the following to ensure the system is properly shut down (or properly conﬁ gured for seasonal storage). This is especially important for maintaining the batteries.

• Perform the recommended maintenance steps noted above.

• Fully charge the batteries; if available, connect a battery charger to

maintain the batteries.

• Verify the inverter is switched OFF.

• Switch OFF all unnecessary AC and DC loads.

Testing the GFCI Outlet

Use the steps below to periodically test the GFCI outlet to ensure it is operating properly.

1. Turn the inverter on.

2. Plug a small AC load (e.g., 40W light bulb) into the GFCI’s outlet.

3. Check that the AC load is on (i.e., the bulb lights).

4. Press the GFCI’s TEST button. The GFCI’s RESET button should pop out, and the power should shut off (light bulb goes out).

Note: If the bulb remains lit or the RESET button does not pop out, the GFCI may not be functioning properly.

5. Press the RESET button. The AC load should come back on (bulb lights again).

Appendix

Appendix C - Regulatory and FCC Information

Regulatory Compliance

The CSW2012-X has been tested and listed to UL 458, 5th Edition (Power Converters/Inverters for use in the US; and is also certified to CSA C22.2 No.

107.1-01 (General Use Power Supplies) for use in Canada. It has been tested and certified to these product safety standards by Intertek Testing Services (known as ETL), which is a Nationally Recognized Testing Laboratory (NRTL). NRTL’s are qualified organizations that meet Occupational Safety and Health Administration (OSHA) regulations to perform independent safety testing and product certification.

FCC Information

The CSW2012-X inverter has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Re-orient or relocate the receiving antenna.

• Increase the separation between the equipment and the receiver.

• Connect the equipment into an outlet on a circuit different from that to

which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

Appendix

Appendix D - Limited Warranty

Sensata Technologies warrants the CSW2012-X inverter to be free from defects in material and workmanship that result in product failure during normal usage, according to the following terms and conditions:

1. The limited warranty for this product extends for a maximum of 12 months from the product’s original date of purchase.

2. The limited warranty extends to the original purchaser of the product and is not assignable or transferable to any subsequent purchaser.

3. During the limited warranty period, Sensata will repair or replace at our option any defective parts, or any parts that will not properly operate for their intended use, with factory new or remanufactured replacement items if such repair or replacement is needed because of product malfunction or failure during normal usage. The limited warranty does not cover defects in appearance, or cosmetic, decorative, structural or non-operative parts. Sensata’s limit of liability under this warranty shall be the actual cash value of the product at the time the original purchaser returns the product for repair, determined by the price paid by the original purchaser. Sensata shall not be liable for any other losses or damages.

4. Upon request from Sensata, the original purchaser must prove the product’s original date of purchase by a dated bill of sale, itemized receipt.

5. The original purchaser shall return the product prepaid to Sensata in Everett, WA. After the completion of service under this limited warranty, Sensata will return the product prepaid to the original purchaser via a Sensata selected, non-expedited surface freight within the contiguous United States and Canada; this excludes Alaska and Hawaii.

6. If Sensata repairs or replaces a product, its warranty continues for the remaining portion of the original warranty period or 90 days from the date of the return shipment to the original purchaser, whichever is greater. All replaced products and parts removed from repaired products become the property of Sensata.

7. This limited warranty is voided if:

• the product has been modiﬁ ed without authorization.

• the serial number has been altered or removed.

• the product has been damaged from abuse, neglect, accident, high voltage or corrosion.

• the product was not installed/operated according to instructions.

How to Receive Warranty Service

If your product requires warranty service, contact Sensata (MagnumDimensions) at:

• Telephone: 425-353-8833, or

• Email:

MagnumWarranty@Sensata.com

If returning your product directly to Sensata (in Everett, WA), you must:

1. Return the unit in the original, or equivalent, shipping container.

2. Receive a Return Materials Authorization (RMA) number from Sensata prior to the return of the product for service.

3. Place RMA numbers clearly on the shipping container or the packing slip.

When sending your product for service, please ensure it is properly packaged.

Damage due to inadequate packaging is not covered under warranty.

We recommend sending the product by traceable and insured service.

BEFORE RETURNING ANY UNIT, A RETURN MATERIAL

AUTHORIZATION (RMA) NUMBER IS REQUIRED

Web: www.Magnum-Dimensions.com

PN: 64-0074 Rev B

Magnum-Dimensions Products

Manufactured by:

Sensata Technologies

2211 West Casino Rd.

Everett, WA 98204

Phone: 425-353-8833

Fax: 425-353-8390

Magnum Dimensions CSW2012-X Owner's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1.0 Introduction

1.1 Features

1.2 How this Inverter Works

1.3 Advantages of a Pure Sine Wave Inverter

2.0 Installation

2.1 Pre-Installation

2.2 Locating and Mounting the Inverter

2.3 Wiring the Inverter – General Requirements

2.4 DC Wiring

2.5 AC Wiring

2.6 Testing the Inverter

3.0 Operation

3.1 Inverter Mode

3.2 By-Pass Mode

3.3 Display Panel Operation

3.4 Understanding Loads

4.0 Troubleshooting

Appendix A - Battery Information

Appendix B - Preventive/Periodic Maintenance

Appendix C - Regulatory and FCC Information

Appendix D - Limited Warranty