Magnum Dimensions CSW2012-X User manual

Owner’s Manual
CSW2012-X
Pure Sine Wave Inverter

© 2015 Sensata Technologies i
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 specifications 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.
Copyright Notice
Copyright © 2015 by Sensata Technologies. All rights reserved. Permission to
copy, distribute, and/or modify this document is prohibited without express
written permission from Sensata.
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 figures in color and can be downloaded at
www.magnum-dimensions.com.
Contact Information
For Magnum-Dimensions products:
Sensata Technologies Phone: [phone]
2211 West Casino Rd. Fax: [phone]
Everett, WA 98204 Web: www.magnum-dimensions.com
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

ii © 2015 Sensata Technologies
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, fire, 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 specified action could
result in physical harm to the user.
CAUTION: Indicates that failure to take a specified 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 zero-
clearance 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 specific 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 fire 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 flammable
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.

© 2015 Sensata Technologies iii
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 Specifications......................................................................... 35
Appendix A - Battery Information ................................................ 36
Battery Bank Sizing ...................................................................... 36
Battery Types............................................................................... 36
Battery Configuration.................................................................... 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

iv © 2015 Sensata Technologies
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

© 2015 Sensata Technologies 1
1.0 Introduction
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 benefits of your CSW2012-X inverter.
1
2
3
4
5
6
Figure 1-1, Front Panel Features
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 flow 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 identification number assigned to each
unit (with a model-specific prefix). 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.

2 © 2015 Sensata Technologies
1.0 Introduction
Figure 1-2, Front Panel Features (Cover Removed)
10
9
8
7
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 allows a dedicated
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 pass-
thru current of 20 amps.
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).

© 2015 Sensata Technologies 3
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
11
13
12
16
14
15

4 © 2015 Sensata Technologies
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 qualified 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,
modified sine wave (which is actually a modified square wave) and pure sine
wave (see Figure 1-4).
Modified 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.
Figure 1-4, AC Waveforms
TIME
VOLTAGE
40
80
0
120
40
160
200
80
120
160
200
Modified
Sine Wave
Sine Wave
Square Wave

© 2015 Sensata Technologies 5
2.0 Installation
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 certified electrician. The installer
determines which safety codes apply and ensures all applicable
installation requirements are followed. Applicable installation codes
vary depending on the specific 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 simplified
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 chafing), 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 Magnum-
Dimensions 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