Xantrex Technology Marine Battery Freedom SW 2000 User Manual

TM  
TM  
2000W SINEWA  
FREEDOM SW 2000  
VE INVER  
FREEDOM  
TER/CHARGER  
Model  
Number  
FGA  
FSW2000  
815-2000  
Number  
ank  
h)  
B
ry  
t
A
F
t
te  
y
(
ault  
k
a
B
C
apaci  
30  
2000  
rch  
ea  
SW  
Inverter Mode:  
operating  
ominal put oltage:  
ominal utpurequency:  
ax. ontinuous put urrent  
ax. perating Input  
ax. ontinuous utput  
Input  
ax.  
ax.  
ax.  
S
ode  
1000  
800  
600  
400  
N
N
N
M
M
M
D
C
O
O
V
olt  
a
ff  
100  
B
a
ype  
T
r
y
200  
tt  
A
C
V
%
t
t
e
ax  
O
Ba  
M
AC  
oded  
C
O
C
A
C
C
:
G
M
/
l
o
A
F
C
Input  
D
C
SW  
A
2000  
w
GEL  
M
A
C
O
a
ge:  
rro  
Na  
12 Vdc  
:
120 Vac  
, 1Ø  
duration):  
60 Hz  
ide  
W
M
M
M
O
utput Surge Power (10  
s
2000  
W
at 30°C  
oltage:  
D
C
Input  
V
2000  
n
v
Current  
:
e
A
r
ting  
16.66  
252  
A
mbient  
T
emperature:  
t
N
A
ominal  
D
C
C
harger Mode:  
SW  
A
N
Power  
omina
C
nput  
V
oltage:  
15.5 Vdc  
C
ha  
g
ing  
Faco:  
r
C
M
harging  
ax. ontinuous  
ominal  
ax.  
D
C
O
utt  
V
ltage R50°C  
4000 VA  
C
B
Input  
at  
t
ery  
C
FREEDOM  
>
0.95  
N
A
C
:
FREEDOM  
M
A
120 Vac  
urrent (charge pass-through):  
TIO100N MENatVTS:  
QngUDeIC:RCu.0rrent  
he ri ta ions  
,
60 Hz, 1Ø  
A
C
Input  
M
C
Input  
C
+
W
ide  
Ba  
tte  
ry  
INST  
A
L
L
A
R
AhaErger  
a
E
N
a
1
ting  
rr  
o
A
T
y
Mount this inverter/charger only in  
t
1
-
o
1
6
e
.
n
0
t
d
c
r
p
e
e
w
G
G
E
M
L
/
v
n
specified in the installation guide provided.  
ION:  
cover or obstruct ventilation openings. Do not mount  
in zero-clearance compartment. Overheating may  
S
ear  
ch  
ode  
F
lo  
oded  
C
A
U
T
U
L
4
5
8
3033614  
C
S
A
1
0
7
.
1
-
0
1
M
ax  
O
B
a
tt  
a
e
C
a
r
y
B
a
n
k
ging  
4
8
A
r
m
s
r
ff  
pa  
r
e
s
u
l
t
.
D
o
n
o
t
e
x
T
p
o
ors  
e
e
d
t
u
o
ceratihneorris  
s
k
pr  
a
of  
y
f
.
i
r
e
,
d
o
n
o
t
ha  
c
it  
C
y
(
A
1000  
800  
A
h)  
W
A
R
NING:  
600  
400  
user serviceable parts. Energized from both AC and  
DC sources. Disconnect all sources before servicing.  
Shock hazard. Do not open. No  
FREEDOM  
30  
100  
200  
Use only ground-fault circuit interrupters (GFCI)  
specified in the installation guide supplied. Other  
types may fail to operate properly when connected  
this equipment. Refer to manual. Charge only  
lead-acid batteries. Other battery types may burst  
causing personal injury and damage.  
ault  
F
kW  
I
SW  
2000  
DANGE  
R:  
tt  
a
B
install in an area in which ignition-protected  
euipment is required.  
%
To reduce the risk of explosion, do not  
to  
Serial Number  
Date of Manufacture  
Designed in Canada  
Assembled in China.  
.
Installation Guide  
Freedom SW 2000  
Sine Wave Inverter/Charger  
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Trademarks  
Document Part Number  
975-0527-01-01  
Xantrex and Smart choice for power are trademarks of Schneider Electric Services  
International sprl, registered in the U.S. and other countries. Other trademarks,  
registered trademarks, and product names are the property of their respective owners  
and are used herein for identification purposes only.  
Product Number  
815-2000  
Notice of Copyright  
Contact Information  
Freedom SW 2000 Sine Wave Inverter/Charger Installation Guide © May 2010  
Xantrex Technology Inc. All rights reserved. No part of this document may be  
reproduced in any form or disclosed to third parties without the express written  
consent of: Xantrex Technology Inc., 161-G South Vasco Road, Livermore,  
California, USA 94551. Xantrex Technology Inc. reserves the right to revise this  
document and to periodically make changes to the content hereof without obligation  
or organization of such revisions or changes unless required to do so by prior  
arrangement.  
Telephone:  
1 800 670 0707 (toll free North America)  
1 408 987 6030 (direct)  
Fax:  
1 800 994 7828 (toll free North America)  
Email:  
Web:  
Exclusion for Documentation  
UNLESS SPECIFICALLY AGREED TO IN WRITING, XANTREX TECHNOLOGY INC. (“XANTREX”)  
(A) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY  
TECHNICAL OR OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER DOCUMENTATION;  
(B) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES, DAMAGES, COSTS OR EXPENSES,  
WHETHER SPECIAL, DIRECT, INDIRECT, CONSEQUENTIAL OR INCIDENTAL, WHICH MIGHT ARISE  
OUT OF THE USE OF SUCH INFORMATION. THE USE OF ANY SUCH INFORMATION WILL BE ENTIRELY  
AT THE USERS RISK; AND  
(C) REMINDS YOU THAT IF THIS MANUAL IS IN ANY LANGUAGE OTHER THAN ENGLISH,  
ALTHOUGH STEPS HAVE BEEN TAKEN TO MAINTAIN THE ACCURACY OF THE TRANSLATION, THE  
ACCURACY CANNOT BE GUARANTEED. APPROVED XANTREX CONTENT IS CONTAINED WITH THE  
ENGLISH LANGUAGE VERSION WHICH IS POSTED AT WWW.XANTREX.COM.  
Date and Revision  
May 2010 Rev C  
975-0527-01-01  
i
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About This Guide  
Purpose  
Conventions Used  
The purpose of this Installation Guide is to provide procedures for installing The following conventions are used in this guide.  
the Freedom SW 2000 Inverter/Charger.  
Scope  
The guide provides safety guidelines as well as information on installing  
the inverter/charger. It does not provide details about particular brands of  
batteries. You need to consult individual battery manufacturers for this  
STATEMENT OF HAZARD  
Contains statements of avoidance or strict compliance.  
Failure to follow these instructions will result in death or serious  
injury.  
information.  
Audience  
The guide is intended for qualified installers who need to install and  
configure the Freedom SW 2000 Inverter/Charger.  
The installer should have knowledge and experience in installing electrical  
equipment, knowledge of the applicable installation codes, and awareness  
of the hazards involved in performing electrical work and how to reduce  
those hazards. A qualified technician or electrician has this knowledge and  
experience.  
STATEMENT OF HAZARD  
Contains statements of avoidance or strict compliance.  
Failure to follow these instructions can result in death or serious  
injury.  
STATEMENT OF HAZARD  
Contains statements of avoidance or strict compliance.  
Failure to follow these instructions can result in minor or moderate  
injury.  
ii  
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STATEMENT OF HAZARD  
Contains statements of avoidance or strict compliance.  
Failure to follow these instructions can damage the unit and/or  
damage other equipment.  
IMPORTANT: These notes describe things which are important for you to  
know, however, they are not as serious as a caution or warning.  
Related Information  
You can find more information about Xantrex Technology Inc. as well as  
its products and services at www.xantrex.com.  
975-0527-01-01  
iii  
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Important Safety Instructions  
IMPORTANT: READ AND SAVE THIS INSTALLATION GUIDE FOR  
FUTURE REFERENCE.  
ELECTRICAL SHOCK HAZARD  
Do not expose the Freedom SW 2000 to rain, snow, spray, or bilge  
water. This inverter/charger is designed for indoor use only.  
Do not operate the inverter/charger if it has received a sharp blow,  
been dropped, has cracks or openings in the enclosure including if the  
fuse cover has been lost, damaged, or will not close, or otherwise  
damaged in any other way.  
This chapter contains important safety and installation instructions for the  
Freedom SW 2000 Inverter/Charger (Freedom SW 2000). Each time,  
before using the Freedom SW 2000, READ ALL instructions and  
cautionary markings on or provided with the inverter/charger, the batteries,  
and all appropriate sections of this guide.  
Do not disassemble the inverter/charger. Internal capacitors remain  
charged after all power is disconnected.  
Disconnect both AC and DC power from the inverter/charger before  
attempting any maintenance or cleaning or working on any circuits  
connected to the inverter/charger. See note below.  
NOTE: The Freedom SW 2000 contains no user-serviceable parts. See  
“Warranty and Return Information” on page 65 of the Owner’s Guide for  
guidance.  
Do not operate the inverter/charger with damaged or substandard  
wiring. Make sure that all wiring is in good condition and is not  
undersized.  
Failure to follow these instructions will result in death or serious  
injury.  
NOTE: Turning off the inverter/charger using the on/off switch on the front  
panel will not reduce an electrical shock hazard.  
iv  
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NOTES:  
1. Follow these instructions and those published by the battery  
manufacturer and the manufacturer of any equipment you intend to use  
in the vicinity of the battery. Review cautionary markings on these  
products and on the engine.  
FIRE AND BURN HAZARD  
Do not cover or obstruct the air intake vent openings and/or install in a  
zero-clearance compartment.  
2. This inverter/charger contains components which tend to produce arcs  
or sparks.  
Failure to follow these instructions will result in death or serious  
injury.  
3. Locations include any space containing gasoline-powered machinery,  
fuel tanks, as well as joints, fittings, or other connections between  
components of the fuel system.  
EXPLOSION HAZARD  
Charge only properly rated (such as 12 V) lead-acid (GEL, AGM, or  
Flooded) rechargeable batteries because other battery types may  
explode and burst.  
Do not work in the vicinity of lead-acid batteries. Batteries generate  
explosive gases during normal operation. See note #1.  
Do not install and/or operate in compartments containing flammable  
materials or in locations that require ignition-protected equipment.  
See notes #2 and #3.  
Failure to follow these instructions will result in death or serious  
injury.  
975-0527-01-01  
v
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Precautions When Working With Batteries  
5. Use extra caution to reduce the risk or dropping a metal tool on the  
battery. It could spark or short circuit the battery or other electrical  
parts and could cause an explosion.  
BURN FROM HIGH SHORT-CIRCUIT CURRENT, FIRE AND EXPLO-  
SION FROM VENTED GASES HAZARDS  
6. Batteries can produce a short circuit current high enough to weld a ring  
or metal bracelet or the like to the battery terminal, causing a severe  
burn.  
Always wear proper, non-absorbent gloves, complete eye protection,  
and clothing protection. Avoid touching your eyes and wiping your  
forehead while working near batteries. See note #4.  
7. When removing a battery, always remove the negative terminal from  
the battery first for systems with grounded negative. If it is grounded  
positive, remove the positive terminal first. Make sure all loads  
connected to the battery and all accessories are off so you don’t cause  
an arc.  
Remove all personal metal items, like rings, bracelets, and watches  
when working with batteries. See notes #5 and #6 below.  
Never smoke or allow a spark or flame near the engine or batteries.  
Never charge a frozen battery.  
Failure to follow these instructions can result in death or serious  
injury.  
NOTES:  
1. Locate the Freedom SW 2000 Inverter/Charger unit away from  
batteries in a well ventilated compartment.  
2. Always have someone within range of your voice or close enough to  
come to your aid when you work near a lead-acid battery.  
3. Always have plenty of fresh water and soap nearby in case battery acid  
contacts skin, clothing, or eyes.  
4. If battery acid contacts skin or clothing, wash immediately with soap  
and water. If acid enters your eye, immediately flood it with running  
cold water for at least twenty minutes and get medical attention  
immediately.  
vi  
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Precautions When Preparing to Charge  
Precautions When Placing the Inverter/Charger  
RISK OF DAMAGE TO THE INVERTER/CHARGER  
EXPOSURE TO CHEMICALS AND GASES HAZARD  
Never allow battery acid to drip on the inverter/charger when reading  
Make sure the area around the battery is well ventilated.  
Make sure the voltage of the batteries matches the output voltage of  
the inverter/charger.  
gravity, or filling battery.  
Never place the Freedom SW 2000 Inverter/Charger unit directly  
above batteries; gases from a battery will corrode and damage the  
inverter/charger.  
Be careful to keep corrosion from coming into contact with your eyes  
and skin when cleaning battery terminals.  
Do not place a battery on top of the inverter/charger.  
Failure to follow these instructions can result in death or serious  
injury.  
Failure to follow these instructions can damage the unit and/or  
damage other equipment.  
NOTES:  
Study and follow all of the battery manufacturer's specific precautions,  
such as removing or not removing cell caps while charging, whether  
equalization is acceptable for your battery, and recommended rates of  
charge.  
For flooded non-sealed batteries, add distilled water in each cell until  
battery acid reaches the level specified by the battery manufacturer.  
This helps to purge excessive gas from cells. Do not overfill. For a  
battery without removable cell caps, carefully follow manufacturer's  
instructions.  
975-0527-01-01  
vii  
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Regulatory  
The Freedom SW 2000 Inverter/Charger is certified to appropriate US and  
Canadian standards. For more information see “Regulatory Approvals” on  
page 68 of the Owner’s Guide.  
The Freedom SW 2000 Inverter/Charger is intended to be used for RV,  
marine, and commercial truck applications. It is not intended for other  
applications as it may not comply with the additional safety code  
requirements needed for those other applications. See “Limitations On Use”  
below.  
LIMITATIONS ON USE  
Do not use in connection with life support systems or other medical  
equipment or devices.  
Do not use in ambulances or other life-saving emergency vehicles.  
Failure to follow these instructions can result in death or serious  
injury.  
viii  
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Contents  
Important Safety Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv  
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Materials List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
Installation Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3  
Before You Begin the Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3  
Installation Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3  
Planning the Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
Two Key Performance Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4  
Size and Length of DC Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
Mounting Location of the Freedom SW 2000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
AC and DC Components including wire and breaker sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5  
AC Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
AC Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
AC Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
AC Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
AC Disconnect and Over-Current Protection Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7  
Distribution Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8  
AC Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  
AC Output Neutral Bonding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  
DC Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
DC Disconnects and Over-Current Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
DC Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
DC Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
Unpacking and Inspecting the Freedom SW 2000 Inverter/Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12  
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Installation Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13  
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13  
Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13  
Installing the Inverter/Charger. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14  
Step 1: Choosing a Location for the Inverter/Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15  
Step 2: Mounting the Inverter/Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17  
Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17  
Step 3: Connecting the AC Input and AC Output Wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20  
General AC Wiring Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20  
Connecting AC Input Wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21  
Connecting AC Output Wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22  
Step 4: Connecting the DC Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24  
DC Connection Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24  
Recommended Cable Sizes and Lengths and Fuse Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24  
Preparing the Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24  
Guidelines for Routing the DC Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25  
Connecting the DC Cables to the Inverter/Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26  
DC Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28  
Step 5: Connecting the Battery Temperature Sensor (BTS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29  
Mounting Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29  
Mounting to the Negative Battery Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30  
Mounting to the Side of the Battery Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32  
Step 6: Performing Checks Prior to Initial Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33  
Step 7: Testing Your Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34  
Testing in Invert Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34  
Testing in Charge Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35  
Installation Complete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35  
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Inverter/Charger Physical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36  
Battery Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37  
Battery Bank Sizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37  
Estimating Battery Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37  
Calculating Battery Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37  
Battery Banks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39  
Battery Bank Sizing Worksheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39  
Restrictions on Motor Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39  
Cabling and Hook-up Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41  
Parallel Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41  
Series Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42  
Series-Parallel Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43  
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Introduction  
The Installation Guide provides detailed information for installing the  
Freedom SW 2000 Inverter/Charger and the battery temperature sensor and  
wiring the inverter/charger to the AC and DC circuits.  
This Installation Guide provides:  
safety instructions that must be observed during installation,  
information on additional required AC and DC components,  
a list of installation tools and materials, and  
detailed procedures for a typical installation.  
975-0527-01-01  
1
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Introduction  
Materials List  
The Freedom SW 2000 ships with the following items:  
one Freedom SW 2000 unit,  
owner’s and installation guides,  
FREEDOM  
Battery Temperature Sensor (BTS),  
F
ault  
SW  
B
a
tt  
%
2000  
Freedom SW remote panel with 25-foot communications cable,  
DC terminal covers (one red, one black) with two sets of screws, and  
two sets of nuts and washers for the DC terminals.  
kW  
A
I
nv  
e
rting  
Char  
ging  
A
C
Input  
W
ide  
B
at  
N
te  
ry  
ar  
ro  
T
yp  
w
A
G
G
E
M
L
/
e
Sea  
M
Flo  
rch  
o
ded  
ode  
M
ax  
O
Ba  
tte  
Ca ry  
pa Bank  
cit  
ff  
y
(
A
100  
h)  
800  
0
600  
400  
FREEDOM  
30  
10  
200  
0
SW  
Installation and  
Owner’s Guides  
2000  
NOTE: If any of the items are missing, contact Xantrex or any authorized  
Xantrex dealer for replacement. See “Contact Information” on page i.  
Freedom SW 2000  
IMPORTANT: Keep the carton and packing material in case you need to  
return the Freedom SW 2000 for servicing.  
Remote panel with  
communications cable  
BTS  
nuts and washers  
DC terminal covers  
with screws  
Figure 1 Materials List  
2
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Installation Information  
Before You Begin the Installation  
Installation Codes  
Before beginning your installation:  
Applicable installation codes vary depending on the specific location and  
application of the installation. Some examples are:  
Read the entire Installation Guide so you can plan the installation from  
beginning to end.  
The U.S. National Electrical Code (NEC),  
The Canadian Electrical Code (CEC),  
Assemble all the tools and materials you require for the installation.  
Review the Important Safety Instructions on page iv.  
Canadian Standards Association (CSA) and RV Industry Association  
(RVIA) for installation in RVs, and  
Be aware of all safety and electrical codes which must be met.  
ABYC E11 - Alternating Current and Direct Current Electrical  
Systems on Boats, and  
ABYC A31 - Battery Chargers and Inverters.  
ELECTRICAL SHOCK AND FIRE HAZARDS  
All wiring should be done by qualified personnel to ensure  
compliance with all applicable installation codes and regulations.  
Disconnect all AC and DC power sources.  
Disable and secure all AC and DC disconnect devices and automatic  
generator starting devices.  
Failure to follow these instructions will result in death or serious  
injury.  
975-0527-01-01  
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Planning the Installation  
This section provides information to help you plan for a basic installation of  
the Freedom SW 2000.  
Two Key Performance Factors  
Two key factors in particular will have a major impact on system  
performance.  
As your system configuration is determined, record the details in  
Information About Your System of the Freedom SW 2000 Sine Wave  
Inverter/Charger Owners Guide.  
Size and Length of DC Cables  
To select the appropriate size and length of DC cables, see “DC Cabling”  
The DC cables should be as short as possible and large enough to handle the  
required current, in accordance with the electrical codes or regulations  
applicable to your installation. If there are long battery cables which are in  
excess of 10 feet each and not of sufficient size, the voltage drop across the  
cables will have a negative impact on overall system performance.  
Mounting Location of the Freedom SW 2000  
To choose an appropriate location for mounting the inverter/charger, see  
4
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Planning the Installation  
AC and DC Components including wire and  
breaker sizes  
Sine Wave Inverter/Charger  
For a successful installation, you need to plan for AC and DC components  
including planning for wire and breaker sizes to be used in the power  
system. The AC and DC components are described in this section.  
AC components include:  
AC Out  
AC In  
DC +  
DC Fuse  
DC -  
House Battery  
AC Main Panel  
Battery Temperature  
Sensor  
Isolator  
Engine Battery  
Non-Inverter Loads  
DC components include:  
RESET  
TEST  
Inverter AC Panel  
Alternator  
Low Voltage DC  
IMPORTANT: Figure 2 does not show all required grounding and  
overcurrent protection.  
Figure 2 Sample Vehicle Electrical System Configuration  
975-0527-01-01  
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Planning the Installation  
INVERTER AC SUB PANEL (TYPICAL)  
For wire and breaker size information:  
IMPORTANT: Read Owner’s and Installation Guides  
prior to installation.  
15 A  
TO AC APPLIANCE  
LOADS  
HOT BUS  
Always refer to local and national  
electrical codes for proper wire and  
breaker sizes prior to installation.  
20 A  
2
OPTIONAL  
GFCI duplex receptacle  
15 A output limit  
Neutral  
GND  
3
MAIN ELECTRICAL PANEL  
HARDWIRE CONNECTIONS  
MAIN  
FROM SHORE OR  
GENERATOR POWER  
4
20 A MAX in inverter  
30 A MAX In pass-through  
10 AWG  
120 V AC OUT  
30 A  
FSW 2000  
Inverter/Charger  
1
HOT BUS  
120 V AC IN  
10 AWG*  
4
HOT = BLACK  
NEUTRAL = WHITE  
GND = GREEN/Bare  
5
8 AWG Chassis GND  
4/0 AWG  
250 A fuse**  
6
Neutral  
GND  
12 volt  
Battery (Bank)  
** Class T or equivalent  
Figure 3 Wiring and Breakers Block Diagram  
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Planning the Installation  
AC Components  
AC Input  
AC input to the Freedom SW 2000 can be supplied from a single-phase  
120-volt 60-Hz AC source such as the utility grid (power company), a  
generator, or the output of a transfer switch.  
AC Disconnect and Over-Current Protection Devices  
To meet CSA, UL, and electrical code requirements, and to protect system  
wiring, the AC inputs and outputs of the inverter/charger must be provided  
with over-current protection on both the AC input and output. This  
protection may be a circuit breaker or a fuse with a disconnect device (for  
simplicity the following refers to breakers). Refer to your applicable  
installation codes and the following requirements:  
AC Output  
AC output from the Freedom SW 2000 is 120 Vac/60 Hz.  
AC Loads  
The Freedom SW 2000 is intended to power loads consisting of 120 Vac  
appliances.  
AC Input Protection  
In Invert mode, the Freedom SW 2000 provides 120 Vac to loads connected  
to AC output. In AC pass-through mode, the source connected to the AC  
input is passed through (sometimes called bypass current or pass-through  
power) to the load. Because of the way invert mode operates, only 120 Vac  
appliances can be connected to the Freedom SW 2000 output.  
The breaker protecting the AC input of the Freedom SW 2000 must be  
approved for use on 120 Vac branch circuits. The breaker must be rated at  
no more than 30 amps. This single input breaker must provide the Freedom  
SW 2000 with sufficient power for operating the battery charger including  
pass-through power (to operate downstream AC appliance loads). The  
Freedom SW 2000 does not have a power sharing feature. Refer to the  
owner’s guide for more details on AC current that is required to charge  
batteries.  
ELECTRICAL SHOCK HAZARD  
Do not connect 240 Vac loads to the Freedom SW 2000 outputs. Doing  
so may result in 120 Vac on exposed parts of the appliance.  
Failure to follow these instructions will result in death or serious  
injury.  
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Planning the Installation  
AC Output Protection  
Tested GFCIs  
The breaker between the Freedom SW 2000 AC output and the AC loads  
must be rated to protect the AC output wire size used. If the AC output  
wiring is based on the full 30A pass-through current rating, then a 30A  
output breaker is acceptable. If the AC output wiring is smaller, then the  
breaker size will have to be smaller as well, in accordance with applicable  
electrical installation codes.  
Compliance with UL standards requires that Xantrex test and recommend  
specific GFCIs for use on the output of the inverter. Table 1 lists models  
that have been tested and will function properly when connected to the AC  
output of the Freedom SW 2000.  
Table 1 Tested GFCI Models  
Manufacturer  
Hubbell  
Model Number  
GFR5252WA  
8599-GY  
GFCI Requirements  
A GFCI (ground fault circuit interrupter) is a device that de-energizes a  
circuit when a current to ground exceeds a specified value that is less than  
that required to open the circuit breaker. GFCIs are intended to protect  
people from electric shocks and are usually required in wet or damp  
locations.  
Leviton  
Pass & Seymour  
1594-W  
Disconnect Devices  
Each system requires a method of disconnecting the AC circuits. If the  
over-current protection device is a circuit breaker, it will also serve as the  
disconnect. If fuses are used, separate AC disconnect switches will be  
needed between the source and the fuses.  
Installation in recreational vehicles requires GFCI protection of certain  
branch circuits. Consult all applicable codes.  
Distribution Panels  
Some systems incorporate distribution panels both ahead of the inverter/  
charger (the AC source panel) and between the inverter/charger and the  
loads (the AC load panel). The AC source panel includes a main circuit  
breaker, which serves as over-current protection for the panel. Additional  
circuit breakers serve individual circuits, one of which serves the inverter/  
charger.  
8
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Planning the Installation  
AC Wiring  
Definition AC wiring includes input wiring (all the wires and connectors Size of Wiring Downstream of the AC Output Breaker The wiring  
between the AC source and the inverter/charger input) and output wiring  
(all the wires between the inverter/charger and the AC load panels, circuit  
breakers, and loads).  
used between the AC output breaker and your loads must be sized to match  
the output breaker.  
Type The type of wiring required varies according to the electrical codes  
or regulations applicable to your installation. For RV applications, this may  
be solid wire in multi-conductor cables, but stranded wire is required if  
single conductors are used. All wiring must be rated 90 °C or higher.  
AC Output Neutral Bonding  
The AC source must have its neutral conductor bonded to ground.  
Bonding system The Freedom SW 2000 provides a system that  
automatically connects the neutral conductor of the inverter’s AC output  
circuit to safety ground (“bonding” it) while the inverter/charger is  
inverting, and disconnects it (“unbonding” it) when the inverter/charger is  
connected to external AC power. This system is designed to conform to  
installation codes that require AC sources such as inverters and generators  
to have their neutral conductors tied to ground at the source of power in the  
same way that the neutral conductor from the utility is tied to ground. These  
same codes specify that the neutral can only be connected to ground in one  
place at any one time.  
Size of AC Input Wiring Wire size must be coordinated with the  
overcurrent protection provided ahead of the wire involved, in accordance  
with the electrical codes or regulations applicable to your installation.  
Therefore, the wiring used between the AC input circuit breaker and the  
inverter/charger input must be sized to match the input breaker rating.  
Table 2 Input AC Wire Size  
Breaker Size Used  
Wire Size  
30 A  
10 AWG  
Suitability This automatic neutral-to-ground bonding system requires AC  
input sources with bonded neutral. This will be the case in most situations:  
in a utility feed, at an external AC hook-up, or a generator with a bonded  
neutral. If not, have an electrician look into bonding the source’s neutral to  
Color Coding  
L: black:  
N: white  
G: green  
Size of AC Output Wiring Wire size must be coordinated with the  
current the wiring will carry. This current may be determined by the 20 A  
maximum inverter current, or by the pass-through current, which is  
determined by the overcurrent protection provided ahead of the Freedom  
SW 2000.  
975-0527-01-01  
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Planning the Installation  
DC Components  
Batteries  
DC Disconnects and Over-Current Devices  
The Freedom SW 2000 system requires a 12 volt, lead-acid deep-cycle  
battery or group of batteries to provide the DC current that the inverter/  
charger converts to AC power. The battery may be a flooded, gel, or AGM  
type.  
The DC circuit from the battery to the inverter/charger must be equipped  
with a disconnect and over-current protection device. (Refer to your  
applicable installation code.)  
Type This device usually consists of a circuit breaker, a “fused-  
disconnect,” or a separate fuse and DC disconnect. Do not confuse AC  
circuit breakers with DC circuit breakers. They are not interchangeable.  
See “Battery Information” on page 37 for information on:  
Estimating the battery size that will meet your requirements.  
Designing battery banks.  
Rating The rating of the fuse or breaker must be matched to the size of  
cables used in accordance with the applicable installation codes.  
Restrictions on the size of appliances.  
Location The breaker or fuse and disconnect should be located as close  
as possible to the battery in the positive cable. Applicable codes may limit  
how far the protection can be from the battery.  
For information on cabling and hooking up batteries, see “Cabling and  
For detailed information about specific brands of batteries, you’ll need to  
consult individual battery manufacturers for this information.  
10  
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Planning the Installation  
DC Cabling  
DC Grounding  
Definition DC cabling includes all of the cables and connectors between  
The inverter/charger DC (chassis) ground terminal needs to be connected to  
the batteries, the DC disconnect and over-current protection device, and the the vehicle chassis by a minimum No. 8 AWG copper conductor that is  
inverter/charger.  
either insulated (green) wire rated 90 °C or bare copper.  
Type All installations require multi-strand insulated cables. The DC  
cables must be copper and must be rated 105 °C minimum.  
Consult your local electrical codes and other applicable electrical standards  
for specific requirements and applications.  
Size and Length See Table 3 for required DC cable length, cable size and  
required fuse size for the Freedom SW 2000. Wire size is usually marked  
on the cables.  
IMPORTANT: Using a smaller gauge cable or a longer cable may cause the  
inverter to shut down under heavy load.  
Table 3 Recommended DC Input Cable and Fuse Size  
Maximum DC Cable  
Length: Battery to  
Freedom SW 2000  
(one way)  
Minimum  
Recommended  
Cable Size  
Total Length  
(two way)  
Maximum Battery  
Fuse or Breaker  
10 feet (3 meters)  
20 feet (6 meters)  
No. 4/0 AWG  
300A class T or  
equivalent  
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Planning the Installation  
Unpacking and Inspecting the Freedom SW 2000 Inverter/Charger  
To unpack and inspect:  
IMPORTANT: Keep the carton and packing material in case you need to  
return the Freedom SW 2000 for servicing.  
HEAVY LOAD  
The Freedom SW 2000 Inverter/Charger is heavy (see “Inverter/Charger  
Physical Specifications” on page 36). The unit is too heavy for one  
person to safely lift and mount. Xantrex recommends that two people lift  
and mount the unit. Always use proper lifting techniques during  
installation to prevent personal injury.  
1. Unpack the unit and check the materials list. If anything is missing  
from the shipping box, contact Xantrex Customer Service. See  
2. Record the serial number of the Freedom SW 2000 and other purchase  
information in the “Warranty and Product Information” section of the  
Freedom SW 2000 Sine Wave Inverter/Charger Owners Guide. You  
will be asked for this product information if you need to call Xantrex  
Customer Service.  
Failure to follow these instructions can result in minor or moderate  
injury.  
3. Save your purchase receipt to use as proof-of-purchase. This receipt is  
required if the inverter/charger should need warranty service.  
4. Save the original shipping carton and packing materials. If the  
inverter/charger needs to be returned for service, it should be shipped  
in the original carton. Packing the Freedom SW 2000 in the original  
shipping carton is also a good way to protect the inverter/charger if it  
ever needs to be moved.  
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Planning the Installation  
Installation Tools and Materials  
Tools  
Materials  
You will need the following tools to install the Freedom SW 2000 and the  
battery temperature sensor.  
You will need the following materials to complete your installation:  
Strain-relief clamp(s) for AC cables (not provided): 1"  
DC battery cables sized according to Table 3 on page 11  
Wire stripper  
Crimping tools for fastening lugs and terminals on DC cables  
Phillips screwdriver: #2  
Terminals and/or crimp connectors for DC cables (for 5/16" DC stud  
size on the Freedom SW 2000 inverter while the battery/fuse cable end  
may require larger size such as 3/8")  
Slot screwdriver (1/4" wide blade max.)  
Needle-nose pliers  
Copper wire for DC grounding: No. 8 AWG. See “DC Grounding” on  
Wrench for DC terminals: 9/16"  
Terminal or crimp connector for DC grounding cable (for 1/4" stud  
size)  
AC and DC disconnect switches and over-current protective devices  
and connectors as required. See page 10.  
AC output and input wire.  
Six 1/4"–20 1.25" length steel screws or bolts to mount the Freedom  
SW 2000  
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Installing the Inverter/Charger  
Overview  
This section provides detailed information on installing the Freedom SW  
2000. The overall procedure is divided into eight steps:  
14  
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Installing the Inverter/Charger  
Step 1: Choosing a Location for the Inverter/Charger  
The inverter should only be installed in a location that meets the following  
requirements:  
FIRE AND EXPLOSION HAZARD  
Ventilated  
Do not operate the inverter/charger in a closed-in  
area or restrict ventilation in any way. The inverter/  
charger requires air circulation to maintain  
optimum operating temperature and provide best  
performance. If the unit has inadequate ventilation,  
it may shut down due to overheating.  
The air vented through the openings should also  
have a path to circulate away from the inverter/  
charger.  
This equipment contains components that could produce arcs or sparks.  
To reduce the risk of fire or explosion, do not install this equipment in  
compartments containing batteries or flammable materials, or in locations  
that require ignition-protected equipment. This includes any space  
containing gasoline-powered machinery, fuel tanks, or joints, fittings, or  
other connections between components of the fuel system.  
Failure to follow these instructions will result in death or serious  
injury.  
Dry  
Do not allow water or other fluids to drip or splash  
on the inverter/charger. Do not expose to rain, snow  
or water.  
HEAT HAZARD  
Do not cover or obstruct the ventilation openings. Do not install this  
equipment in a compartment with limited airflow. Overheating may  
result.  
Cool  
Normal air temperature should be between 32 °F  
and 122 °F (0 °C and 50 °C)—the cooler the better  
within this range.  
Failure to follow these instructions will result in death or serious  
injury.  
Clearance  
Allow as much space around the inverter/charger as  
possible. Xantrex recommends that other objects  
and surfaces be at least 3 inches (76 mm) away  
from the ventilation openings for best performance.  
The location of the inverter/charger is a key factor in system performance.  
Allow sufficient clearance around the unit (recommended minimum  
3 inches (76 mm)) and install in a well-ventilated compartment to prevent  
overheating and premature shutdown of the inverter/charger.  
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Installing the Inverter/Charger  
Safe  
Locate the inverter/charger away from battery in a  
separate well ventilated compartment. Do not  
install the inverter/charger in any compartment  
containing flammable gases or liquids like gasoline.  
Close to  
battery  
compartment  
The length and size of your DC cables will affect  
performance. Use the DC cables recommended in  
Table 3 on page 11. The unit should not be installed  
in the battery compartment due to the possible  
presence of explosive hydrogen gas from the  
batteries.  
Protected from  
battery acid  
and gases  
Never place the inverter/charger directly above the  
batteries—gases from battery will corrode and  
damage the inverter/charger. If the inverter/charger  
is installed in a compartment above the batteries,  
make sure there is a solid, gas-impermeable wall  
dividing the two compartments.  
Never allow battery acid to drip on the inverter/  
charger or its wiring when filling the batteries or  
reading their specific gravity.  
Orientation  
To meet regulatory requirements, the Freedom SW  
2000 must be mounted in one of the approved  
mounting orientation. See Figure 1 on page 18.  
16  
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Installing the Inverter/Charger  
Step 2: Mounting the Inverter/Charger  
To mount the inverter/charger:  
Considerations  
1. Remove the inverter/charger from its shipping container.  
Before mounting the Freedom SW 2000, take the following two factors into  
account.  
2. Verify that all components are present, and record relevant product  
information on form WA-4 in the Freedom SW 2000 Sine Wave  
Inverter/Charger Owners Guide.  
1. The weight of the inverter/charger requires two people to install it.  
2. Mounting considerations are shown in Figure 1 on page 18.  
3. Select an appropriate mounting location and orientation. To meet  
regulatory requirements, the Freedom SW 2000 must be mounted in  
one of the orientations shown in Figure 1 on page 18.  
4. Mark the position of the mounting holes.  
5. Pilot drill the four mounting holes.  
HEAVY LOAD  
The Freedom SW 2000 Inverter/Charger is heavy (see “Inverter/Charger  
6. Fasten the inverter/charger to the mounting surface with four 1/4"–20  
steel screws or bolts.  
Physical Specifications” on page 36). The unit is too heavy for one  
person to safely lift and mount. Xantrex recommends that two people lift  
and mount the unit. Always use proper lifting techniques during  
installation to prevent personal injury.  
Failure to follow these instructions can result in minor or moderate  
injury.  
The Freedom SW 2000 approved mounting orientations are illustrated in  
Mount your inverter/charger before you connect any wires or cables.  
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Installing the Inverter/Charger  
Figure 1 Mounting Orientations  
Approved Mounting  
Orientation?  
Yes  
Orientation  
Desktop Mount  
Comment  
Ideal.  
A
C
I
n
p
u
t
Battery  
AGM/  
Type  
Search  
Mode  
Battery Bank  
Capacity (Ah)  
W
i
d
e
N
a
r
r
o
w
G
E
L
F
l
o
o
d
e
d
M
a
x
Off  
1000  
30  
800  
600  
400  
Fault  
k
W
I
n
v
e
r
t
i
n
g
100  
200  
Batt  
%
A
Charging  
FREEDOM SW 2000  
Upside-down Mount  
Yes (for non-marine  
applications only)  
Suitable only for non-marine applications  
with no risk of condensation or dripping  
water.  
2 0 0 0 S W  
F R E E D O M  
%
B a t t  
g i n g  
A
C h a r  
2 0 0  
4 0 0  
1 0 0  
i n t r  
g
e v  
a F u l t  
k
W
I
n
6 0 0  
8 0 0  
1 0 0 0 f f  
3 0  
x a  
M
O
o
l
o d e d  
w
o
G E L  
F
W
i
d
e
N
a
r
r
/
M
A G  
(
y
h
)
p
a
c
i
t
M o d e  
C
y
B a n k  
c h  
B a t  
p
t e y  
e
T r  
y
S e a r  
I n  
C
p
A
u t  
B a t t e r  
Wall Mount DC on Left  
Yes  
On a vertical surface with DC terminals  
facing left.  
0 0 0 2  
S W M O D E E R F  
IMPORTANT: This orientation is also  
suitable for marine applications only with  
the installation of additional drip protection.  
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Installing the Inverter/Charger  
Approved Mounting  
Orientation?  
Yes  
Orientation  
Wall Mount DC on Right  
Comment  
On a vertical surface with DC terminals  
facing right.  
IMPORTANT: This orientation is also  
suitable for marine applications only with  
the installation of additional drip protection.  
FREEDOM SW 2000  
Wall Mount DC Up  
Wall Mount DC Down  
975-0527-01-01  
No  
Not acceptable.  
This orientation does not meet regulatory  
requirements.  
No  
Not acceptable.  
This orientation does not meet regulatory  
requirements.  
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Installing the Inverter/Charger  
Step 3: Connecting the AC Input and AC Output Wires  
General AC Wiring Considerations  
AC and DC Wiring Separation Do not mix AC and DC wiring in the  
same conduit or panel. Consult the applicable installation code for details  
about DC wiring and AC wiring in vicinity to each other.  
FIRE, ELECTRICAL SHOCK, AND ENERGY HAZARDS  
Make sure wiring being connected to the inverter/charger is disconnected  
(physically or by opening the breaker) from all electrical sources before  
handling. All wiring must be done in accordance with local and national  
electrical wiring codes.  
AC Input and Output Isolation The AC input and output circuits of this  
inverter/charger are isolated from each other when in invert mode to ensure  
safe operation. This isolation must be maintained in the installation, by  
being sure not to connect AC input and output wiring to a common point.  
For example, do not route the AC input and output neutrals to a common  
neutral bus.  
Failure to follow these instructions will result in death or serious  
injury.  
AC Wiring Compartment For your reference, the AC wiring  
AC Knockouts There are two 1" trade-size knockouts on the front panel  
of AC wiring box. Use the same trade size of strain relief as the trade size of  
the knockout(s) you are using.  
AC Wiring Terminals The AC wiring terminals accept cables of a  
specific size. See “AC Wiring” on page 9 for required sizes.  
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Installing the Inverter/Charger  
Connecting AC Input Wires  
Figure 2 shows the wiring compartment, which contains a grounding bus  
(used to wire the AC input and output ground wires) and a terminal block  
(used to wire the AC input and AC output connections).  
EQUIPMENT DAMAGE  
The terminal block is split into INPUT and OUTPUT sections. Damage  
may occur if the unit is wired incorrectly.  
Do not remove or loosen factory installed wiring.  
Failure to follow these instructions can damage the unit and/or  
damage other equipment.  
When making the AC input and AC output connections, observe the correct  
color code for the appropriate AC wire, as described in Table 2 on page 9.  
To make the AC input connections:  
Wiring box cover must be in place during  
use to reduce risk of injury to persons  
1. Locate the wiring compartment cover panel and remove the four  
screws.  
AC  
OUT  
L
2. Remove the cover panel from the unit to access the wiring  
compartment.  
N
G
3. Remove one of the AC knockouts from the front or side of the unit. Do  
not leave the knockout inside the wiring compartment.  
AC  
IN  
L
N
G
4. Install a strain-relief clamp in the AC knockout.  
5. Run the AC wiring through the strain-relief clamp.  
6. Strip approximately 2 inches (50 mm) off the jacket from the AC cable  
and separate the wires.  
AC GROUNDS  
(BEHIND COVER)  
7. Using a 1/4" blade slot screwdriver, loosen the terminal screws on the  
terminals. Do not remove the screws.  
Figure 2 AC Wiring Compartment  
975-0527-01-01  
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Installing the Inverter/Charger  
8. Connect the line and neutral wires to the input terminals (labeled AC  
Input on the terminal block, Figure 2 on page 21). Connect Line to L,  
Neutral to N, and Ground to G.  
Connecting AC Output Wires  
9. Tighten the terminal screws. Leave some slack wire inside the wiring  
box.  
EQUIPMENT DAMAGE  
Do not connect the output of the inverter to any incoming AC source.  
10. Secure the strain-relief clamp on the AC input cable jacket.  
Failure to follow these instructions can damage the unit and/or  
damage other equipment.  
To make the AC output wiring connections:  
1. Remove one of the AC knockouts from the front or side of the unit. Do  
not leave the knockout inside the wiring compartment.  
IMPORTANT: The applicable installation code may not allow you to run  
the AC input and AC output wiring through the same AC knockout.  
2. Install a strain-relief clamp in the AC knockout and run the AC wiring  
through the strain-relief clamp.  
3. Strip approximately 2 inches (50 mm) off the jacket from the AC cable  
and separate the wires.  
4. Using a 1/4" blade slot screwdriver, loosen the terminal screws on the  
AC output terminals. Do not remove the screws.  
5. Connect the line and neutral wires to the output terminals (labeled AC  
Output on the terminal block, Figure 2 on page 21) as follows:  
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Installing the Inverter/Charger  
Table 4 Output AC Wire Size  
Wire Size  
No. 10 AWG  
Color Coding  
L: black:  
N: white  
G: green  
6. Tighten the terminal screws. Leave some slack wire inside the wiring  
box.  
7. Secure the strain-relief clamp on the AC output cable jacket.  
8. Attach the wiring compartment cover panel and tighten the four  
screws.  
9. Connect the outgoing AC wires to an AC load panel equipped with  
circuit breakers.  
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Installing the Inverter/Charger  
Step 4: Connecting the DC Cables  
DC Connection Precautions  
2. Cut the DC ground cable to the required length. Strip off enough  
insulation so you can install the terminals you will be using.  
Xantrex recommends the use of crimp connectors. The connector  
should be designed for a 1/4" stud size to connect to the Freedom SW  
2000. If a crimp connector is used, it should be crimped using the tool  
indicated by the connector manufacturer.  
ELECTRICAL SHOCK HAZARD  
Connect and disconnect DC wiring only after opening the disconnect  
switches or breakers at all AC and DC sources.  
Failure to follow these instructions will result in death or serious  
injury.  
3. Attach the connectors to the ends of both cables. Make sure no stray  
wire strands protrude from the connectors.  
Recommended Cable Sizes and Lengths and Fuse Size  
For recommended DC cables and fuse size, see Table 3 on page 11.  
Preparing the Cables  
To prepare the DC cables:  
1. Cut the negative and positive cables to the required length. Strip off  
enough insulation so you can install the terminals you will be using.  
Xantrex recommends the use of crimp connectors. The connector  
should be designed for a 5/16" DC stud size on the Freedom SW 2000  
inverter, while battery/fuse cable end may require a larger size such as  
3/8" to connect to the Freedom SW 2000. If a crimp connector is used,  
it should be crimped using the tool indicated by the connector  
manufacturer.  
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Installing the Inverter/Charger  
Guidelines for Routing the DC Cables  
Follow these guidelines to ensure maximum performance.  
ELECTRICAL SHOCK AND FIRE HAZARD  
Route the cables away from sharp edges that might damage the  
insulation. Avoid sharp bends in the cable.  
Failure to follow these instructions will result in death or serious  
injury.  
Do not attempt to use the chassis in place of the battery negative  
connection for grounding. The inverter requires a reliable return path  
directly to the battery.  
To reduce the chance of radio frequency interference, keep the positive  
and negative cables close together—ideally, held together by straps,  
loom, or insulated clamps at regular intervals.  
To ensure maximum performance from the inverter/charger, do not  
route your DC cables through a DC distribution panel, battery isolator,  
or other device that will cause additional voltage drops. The exception  
is the DC fuse and Disconnect or the DC circuit breaker which is  
required at the battery to protect the DC wiring.  
To help avoid damage caused by reverse polarity battery connection, it  
is a good idea to mark each end of each cable to identify it as a positive  
(red) or negative (black) cable before routing the wiring.  
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Installing the Inverter/Charger  
Connecting the DC Cables to the Inverter/Charger  
To connect the DC cables:  
1. Route the DC cables from the battery bank to the inverter/charger.  
FIRE HAZARD  
2. Install a DC fuse and disconnect switch or a DC circuit breaker  
between the inverter/charger and the battery. It must be installed in the  
positive side of the DC circuit, as close as possible to the battery.  
Use only appropriately sized copper cable. Loose connections or  
improper connections will overheat. Make sure the bolts supplied by  
Xantrex on the inverter/charger are tightened to a torque of 10–11 ft-lbs  
(13.6–14.9 Nm). Torque all other connections to the manufacturer’s  
specifications. Make sure the DC cable, washers, and bolt are assembled  
This protects your battery and wiring in case of accidental shorting.  
See Table 3 on page 11 for required fuse or breaker size.  
3. Open the DC disconnect switch or turn off the DC circuit breaker.  
Failure to follow these instructions will result in death or serious  
injury.  
4. Connect one connector on the POSITIVE (+) cable to the POSITIVE  
DC terminal on the inverter/charger, as shown in Figure 3. The  
connector goes on first, then the flat washer (steel), lock washer  
(steel), and nut 5/16” (steel).  
5. Connect the other connector to the POSITIVE (+) terminal on the fuse  
or breaker. Observe polarity carefully while completing the  
installation.  
EQUIPMENT DAMAGE DUE TO REVERSE POLARITY  
Before making the final DC connection or closing the DC breaker or  
disconnect, check cable polarity at both the battery and the inverter/  
charger. Positive (+) must be connected to positive (+). Negative (–) must  
be connected to negative (–).  
Use a wrench to tighten the nut to a torque of 10–11 ft-lbs (13.6–  
14.9 Nm) at the inverter/charger end. Observe the fuseholder or  
breaker manufacturer’s recommendation at the other end.  
Failure to follow these instructions can damage the unit and/or  
damage other equipment.  
6. Connect one connector on the NEGATIVE (–) cable to the  
NEGATIVE (–) DC terminal on the inverter/charger, as shown in  
Figure 3. The connector goes on first, then the flat washer (steel), and  
nut 5/16” (steel).  
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Installing the Inverter/Charger  
Figure 4 DC Terminal Covers  
Figure 3 DC Cable Connections  
7. Before proceeding, check that the cable polarity is correct: POSITIVE  
(+) on the inverter/charger is connected to the POSITIVE (+) on the  
battery, and NEGATIVE (–) cable is connected to the NEGATIVE (–)  
terminal on the inverter/charger.  
IMPORTANT: The next step is the last cable connection you need to make.  
A spark is normal when this connection is made.  
8. Connect the other end of the cable to the NEGATIVE (–) terminal on  
the battery.  
9. Use a wrench to tighten the nut to a torque of 10–11 ft-lbs (13.6–  
14.9 Nm) at the inverter/charger end.  
10. To protect the DC terminals, attach the DC terminal covers (Figure 4)  
to the inverter/charger, using the screws provided.  
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Installing the Inverter/Charger  
DC Grounding  
The Chassis Ground point on the inverter/charger is used to connect the  
chassis of the inverter/charger to your system’s DC grounding point, as  
required by regulations for some installations. Use copper wire that is either  
bare or provided with green insulation.  
The grounding guideline given below assumes you are using the code-  
compliant DC supply cable and fuse sizes indicated on page 11. If you are  
using different sizes, refer to the applicable code for DC grounding detail.  
2
000  
te  
r
e
A
C
Input  
Narr  
Batt  
Wide  
To connect the chassis ground:  
er  
/
y
T
y
pe  
o
AG  
GE  
S
w
ML  
ear  
ch  
Mode  
F
lo  
o
ded  
M
ax  
B
a
tte  
C
a
p
r
y
O
ff  
Bank  
a
c
it  
y
(
1000  
800  
600  
400  
A
h)  
FR  
EED  
30  
100  
200  
1. Using the appropriate wrench, loosen the bolt on the chassis ground  
O
S
M
BT  
SW  
REM  
2
000  
2. Connect the grounding cable between the chassis ground point and the  
DC grounding point for your system.  
In an RV or vehicle installation, the DC grounding point will usually  
be the vehicle chassis or a dedicated chassis ground bus.  
3. Tighten the nut to a torque of 4.7–5.4 ft-lbs (6.6–7.3 Nm).  
Chassis ground point  
Figure 5 DC Wiring and DC Grounding  
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Installing the Inverter/Charger  
Step 5: Connecting the Battery Temperature Sensor (BTS)  
Installing a battery temperature sensor (BTS) extends the life of a battery by  
preventing overcharging in warm temperatures and undercharging in cold  
temperatures. With a BTS monitoring the battery temperature, the voltage  
delivered to the battery is adjusted according to the battery’s actual  
temperature.  
Connector  
The BTS has a self-adhesive backing and attaches to the side of the battery.  
A 25-foot (7.6 m) cable is supplied with the BTS, as shown below.  
Sensor cable  
Mounting Options  
You can mount the BTS in one of two ways:  
Mounting the sensor to the negative battery post allows the internal  
battery temperature to be sensed and provides the most accurate  
results.  
Sensor  
Attaching the sensor to the side of the battery using the self-adhesive  
backing also provides good results in most situations.  
Figure 6 BTS with Cable  
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Installing the Inverter/Charger  
3. Wait 10 minutes for any explosive battery gases to dissipate.  
Mounting to the Negative Battery Terminal  
To mount the sensor on the negative battery terminal:  
4. Remove the nut that connects existing wiring ring terminals to the  
battery negative terminal stud.  
5. Move or reorient the existing wiring ring terminals on the battery  
negative terminal stud, so there is a flat surface on which to seat the  
BTS mounting plate.  
You may need to bend the ring terminal crimp and/or wires slightly  
downward to allow the sensor to seat flush to the top surface of the  
upper ring terminal.  
Negative (–)  
battery terminal  
6. Mount the sensor directly on top of the ring terminal, as shown in  
Figure 7, and firmly tighten the terminal nut.  
FIRE HAZARD  
In this procedure, you must install the DC wire on the battery terminal,  
then install the sensor on top of the DC wire. This sequence is required to  
provide the best connection to the battery and to ensure correct  
performance of the sensor.  
Failure to follow these instructions will result in death or serious  
injury.  
7. Check to ensure that the sensor and all wires are held firmly and  
cannot be moved.  
Figure 7 BTS Mounted on the Negative Battery Terminal  
1. Select the battery to be monitored. The BTS should be connected to  
the battery bank that is directly connected to the inverter/charger.  
8. Turn the battery switch on again (if you opened it in Step 2.)  
9. Route the sensor cable to the inverter/charger and plug it into the BTS  
jack, as shown in Figure 8. Secure the cable along its length.  
2. Switch off all devices operating from the battery, or open the battery  
switch (if present) to disconnect the battery.  
30  
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Installing the Inverter/Charger  
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Figure 8 Connecting the BTS Cable to BTS Jack  
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Installing the Inverter/Charger  
Mounting to the Side of the Battery Case  
To mount the sensor on the battery case:  
3. Clean the selected area thoroughly to remove any oil or grease that  
could prevent the sensor from adhering to the battery case. Allow the  
battery case to dry thoroughly.  
4. Peel the protective backing from the self-adhesive strip on the rear of  
the sensor.  
5. Press the sensor firmly against the clean side of the battery to fix it in  
6. Route the sensor cable to the inverter/charger and plug it into the  
Battery Temp. jack, as shown in Figure 8. Secure the cable along its  
length.  
Figure 9 BTS Mounted on the Battery Case  
1. Select the battery to be monitored.  
The BTS should be connected to the battery bank that is directly  
connected to the inverter/charger.  
2. Select a side suitable for attaching the sensor.  
The surface where the sensor is to be mounted must be flat and free  
from reinforcing ribs or other raised features. This surface must be in  
direct internal contact with the battery electrolyte. Do not install the  
sensor near the top of the battery or on the battery’s top surface.  
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Installing the Inverter/Charger  
Step 6: Performing Checks Prior to Initial Start-Up  
Before testing your installation, ensure these conditions are met:  
Chassis and AC grounds are properly installed.  
AC input connections and AC output connections are wired correctly  
on the terminal block and not reversed.  
Positive (+) battery cable is connected to the positive (+) battery  
terminal through the DC fuse and disconnect switch or DC circuit  
breaker.  
Negative (–) battery cable is connected to the negative (–) battery  
terminal.  
Battery voltage is within the proper range for this unit  
(11–15 volts DC).  
DC disconnect switch or breaker is turned off.  
AC input and output breakers are turned off.  
All connections are tight.  
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Installing the Inverter/Charger  
Step 7: Testing Your Installation  
ELECTRICAL SHOCK HAZARD  
The Inverter Enable button on the Freedom SW 2000 and the optional  
accessories do not disconnect DC or AC input power to the Freedom SW  
2000.  
Low Battery  
Cutoff  
Battery Type  
AGM/  
Search  
Mode  
Battery Bank  
Capacity (Ah)  
LOW  
HIGH GEL Flooded Max  
Off  
1000  
30  
800  
600  
400  
100  
W
A
Inverting  
Charging  
200  
Failure to follow these instructions can result in death or serious  
injury.  
FREEDOM SW 2000  
There are several tests to be performed for testing your installation. These  
tests will verify that:  
Figure 10 Freedom SW 2000 Front Panel  
the Freedom SW 2000 works in invert mode,  
the Freedom SW 2000 works in charge mode, and  
the Freedom SW 2000 works in AC pass-through mode.  
Testing in Invert Mode  
To test the Freedom SW 2000 in invert mode, using a 100 watt light  
bulb as the test load:  
If the test fails at any point, go to “Step 6: Performing Checks Prior to  
Initial Start-Up” on page 33 and go through the checklist again to check the  
installation. Then perform the test again. If the test fails again, see the  
troubleshooting section in the Freedom SW 2000 Sine Wave Inverter/  
Charger Owner’s Guide.  
1. Close the DC disconnect switch or the DC circuit breaker to supply  
DC power to the Freedom SW 2000.  
Make sure the voltage at the DC terminals on the Freedom SW 2000 is  
2. Apply DC power to the inverter by switching on the DC disconnect  
circuit breaker and then pressing the ON/STANDBY switch once.  
The inverter will go through a self-test.  
Each of the indicator lights will flash in sequence,  
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Installing the Inverter/Charger  
the cooling fan will turn on momentarily,  
4. Switch the AC disconnect circuit breaker to OFF. The inverter will go  
into invert mode (if a sufficient load is applied to the AC output while  
in the search mode). The Invert Mode indicator light will illuminate  
indicating the inverter is active. The voltage on the AC output of the  
inverter will remain the same as above 120 Vac/60Hz (± 5%  
the transfer relay will switch, and  
the temperature sensors will be checked for open or short circuit.  
3. After the self-test the unit will start inverting.  
4. Using a true RMS AC voltmeter, check the output voltage of the  
inverter. This voltage can be checked at either the AC terminal block  
or in the sub-panel (between the line and neutral). The voltage should  
be approximately 120 Vac/60Hz.  
maximum) except when the unit is set to be in search mode.  
5. Reapply the AC power by switching the AC disconnect to ON. Allow  
the batteries to fully recharge.  
IMPORTANT: The unit will not use battery energy for AC output as long as  
AC input (utility or generator) is available to the inverter.  
IMPORTANT: If the inverter is in Search Mode and a sufficient load is not  
available to bring the inverter up to full voltage, turn the Search Mode  
potentiometer fully counterclockwise to defeat the search function.  
Installation Complete  
Testing in Charge Mode  
Your installation is now complete. The inverter/charger is ready for use.  
The preceding tests use a light load (a light bulb) as a test case. If you  
encounter problems when using a load over 1000 W (for example, a  
hairdryer or microwave), see the troubleshooting information in the  
Freedom SW 2000 Sine Wave Inverter/Charger Owner’s Guide.  
1. Apply AC power to the inverter.  
2. The inverter starts charging the batteries in the Bulk mode, indicated  
by the Charge Mode indicator light illuminating orange. It takes about  
15 seconds for the unit to transition from invert mode to charge mode  
after the application of qualified AC.  
3. Using a true RMS AC voltmeter, check the output voltage of the  
inverter. This voltage can be checked at either the AC terminal block  
or in the sub-panel (between the line and neutral). The voltage should  
be approximately 120 Vac/60Hz. This ensures the inverter/charger is  
delivering AC output in pass-through mode.  
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Inverter/Charger Physical Specifications  
For complete inverter/charger specifications, refer to the Freedom SW 2000  
Sine Wave Inverter/Charger Owners Guide.  
The physical specifications of the Freedom SW 2000 are described in Table  
Table 5 Freedom SW 2000 Physical Specifications  
Length  
Width  
15.2 inches (385 mm)  
13.4 inches (340 mm)  
7.9 inches (200 mm)  
59.5 lb (27 kg)  
Height  
Weight  
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Battery Information  
Battery Bank Sizing  
Estimating Battery Requirements  
Battery capacity Battery size or capacity is just as important as the  
battery type selected for use with the Freedom SW 2000. The batteries are  
the most important part of your system, so Xantrex recommends that you  
purchase as much battery capacity as possible. A large battery will extend  
running time and ensure that your inverter/charger delivers full rated surge.  
Calculating Battery Size  
Step 1: Compute Amp-hours  
For each appliance, compute the number of amp-hours that will be used  
between charging cycles, as follows:  
Xantrex recommends a minimum battery size of 200 amp-hours (Ah)  
for moderate loads (<1000W) and greater than 400 Ah for heavy loads.  
1. Obtain the wattage. If the wattage is marked on the nameplate rating,  
use that. Otherwise, multiply the marked voltage and amperage:  
WATTS = VOLTS × AMPS.  
calculation.  
2. Obtain the Watt-hours by multiplying that amount by the hours the  
appliance will be used:  
About Amp-hours A number of different standards are used to rate  
battery energy storage capacity. Automotive and marine starting batteries  
are normally rated in cranking amps. This is not a relevant rating for  
continuous loads like an inverter. Deep-cycle batteries use a more suitable  
rating system such as amp-hours (Ah).  
WATT-HOURS = WATTS × HOURS.  
3. Obtain the amp-hours that the appliance requires by dividing that  
amount by 10 (the factor for the Freedom SW 2000, which is a 12-volt  
system):  
Amp-hour capacity is the number of amps a battery can continuously  
deliver during a specified number of hours. It is represented by the product  
of the two —amps multiplied by hours.  
BATTERY AMP-HOURS USED = AC WATT-HOURS/10  
For example, a 100 W light bulb that is used for 4 hours will use 400 watt-  
hours (Wh) and the inverter will consume approximately 40 Ah from a 12  
volt battery.  
A typical marine or RV battery rated for 100 Ah can deliver 5 amps for 20  
hours (5A × 20 hours = 100 Ah). This same battery can deliver a higher or  
lower current for less or more time, limited approximately by the 100 Ah  
figure (50 A for 2 hours or 200 A for 1/2 hour), but usually the capacity  
figure given is only accurate for the specified duration (20 hours).  
4. Enter this information on the blank calculation worksheet (page 40).  
Step 2: Calculate Battery Size  
5. Complete the rest of the worksheet; see Table 6, “Battery Sizing  
Example” on page 38 for an example.  
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Battery Information  
Size the batteries at approximately twice the estimated total amp-hour  
Troubleshooting If you find that the system shuts down when appliances  
usage. Doubling the expected amp-hour usage ensures that the batteries will with large motors are started, the problem may be that this motor is too  
not be overly discharged and extends battery life.  
much for the battery. Even though you calculated the amp-hour  
requirements appropriately, the startup of a large motor makes high  
demands on the battery. You may find that adding more amp-hours (in the  
form of extra batteries or replacement with a bigger battery) solves the  
problem.  
Resist the temptation to skip this doubling step. More capacity is better  
since you will have more reserve capacity, be better able to handle large  
loads and surge loads, and your battery won’t be discharged as deeply.  
Battery life is directly dependent on how deeply the battery is discharged.  
The deeper the discharge, the shorter the battery life.  
Table 6 Battery Sizing Example  
Daily watt-hours needed for  
(A) Power Consumption  
(Watts)  
(B) Operating Time per Day  
(Hours)  
this appliance  
(= A × B)  
Appliance  
TV & VCR  
200 W  
800 W  
180 W  
600 W  
1500 W  
2 hours  
400 Wh  
200 Wh  
720 Wh  
150 Wh  
150 Wh  
1620 Wh  
Small microwave oven  
3 lamps, 60 W each  
Coffee maker  
15 min = 1/4 hour  
4 hours  
15 min = 1/4 hour  
6 min = 1/10 hour  
Hair dryer  
Total daily watt-hours of AC load  
× Number of days between charges  
3
= Total watt-hours of AC load between charges  
Battery Ah used between charges (divide by 10 for 12 volt system; divide by 20 for 24 volt system)  
Recommended Battery Bank Size in Ah (multiply by 2)  
4860 Wh  
486 Ah  
972 Ah  
This example illustrates how quickly your battery needs can escalate. To  
reduce the required battery bank size, you can either conserve energy by  
eliminating or reducing the use of some loads, or recharge more frequently.  
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Battery Information  
Battery Banks  
Restrictions on Motor Size  
As your power requirements increase, you may need to use more than one  
battery to obtain sufficient capacity. Batteries can be connected in parallel,  
in series, or in series-parallel to create higher capacity systems.  
An appliance may require three to six times its normal running current in  
order to start. The Freedom SW 2000 can handle surges to 4000 W for ten  
seconds, which translates to a locked-rotor-amp rating of no more than 32  
A. The locked rotor amp may be specified on the motor nameplate as  
“LRA” or “LRI”.  
information about battery inter-connection schemes.  
Mixing Batteries Batteries connected in parallel should be of the same  
When considering appliances with large motors, follow these guidelines:  
type and amp-hour rating and from the same manufacturer.  
Make sure that the motor’s LRA rating is no more than 32 A. The  
Freedom SW 2000 may not be able to start a motor with a higher LRA,  
and the Freedom SW 2000 will shut down if the attempt is made.  
It is not recommended to connect batteries of different types, amp-hour  
ratings or manufacturers. Improper charging and decreased battery life will  
result.  
Make sure the battery bank, DC cables and DC fuses are capable of  
handling up to 450 A DC for ten seconds. A weaker circuit may not be  
able to provide sufficient power to the Freedom SW 2000 to allow the  
Freedom SW 2000 to start up the appliance. Again if the circuit cannot  
deliver the required current, the system may shut down or the fuse may  
open.  
Battery Bank Sizing Worksheet  
The following worksheet is a guide to help you determine your battery  
needs. Be generous in estimating the time for which you will run each of the  
loads to ensure sufficient battery capacity.  
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Battery Information  
Table 7 Battery Sizing Worksheet  
Daily watt-hours needed for  
this appliance  
(= A × B)  
(A) Power Consumption  
(Watts)  
(B) Operating Time per Day  
(Hours)  
Appliance  
W
W
W
W
W
W
W
W
hours  
hours  
hours  
hours  
hours  
hours  
hours  
hours  
Wh  
Wh  
Wh  
Wh  
Wh  
Wh  
Wh  
Wh  
Wh  
Total daily watt-hours of AC load  
× Number of days between charges  
= Total watt-hours of AC load between charges  
Wh  
Ah  
Battery Ah used between charges (divide by 10 for 12 volt system; divide by 20 for 24 volt system)  
Recommended Battery Bank Size in Ah (multiply by 2)  
Ah  
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Cabling and Hook-up Configurations  
Several smaller batteries can be connected to create a battery bank of  
substantial size. You can connect batteries in three ways: in parallel, series,  
or series-parallel.  
Parallel Connection  
Batteries are connected in parallel when all the positive terminals of a group  
of batteries are connected and then, separately, all the negative terminals are  
connected. In a parallel configuration, the battery bank has the same voltage  
as a single battery, but an Ah rating equal to the sum of the individual  
batteries. See below.  
To make a larger battery bank, connect individual batteries with heavy  
cables. The actual size of the cable depends on whether the batteries are  
connected in parallel or series. Generally, the cable should not be smaller  
than the inverter cables—if the main cables are 4/0 AWG, the battery  
interconnects should be 4/0 AWG.  
The best configuration is to connect the batteries in series and parallel. This  
requires additional cables, but reduces imbalances in the battery bank and  
can improve the overall performance. Consult your battery supplier for  
more information regarding the hook-up configuration required for your  
system.  
Figure 11 Batteries Connected in Parallel  
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Cabling and Hook-up Configurations  
Series Connection  
When batteries are connected with the positive terminal of one battery to  
the negative terminal of the next battery, they are connected in series. In a  
series configuration, the battery bank has the same Ah rating of a single  
battery, but an overall voltage equal to the sum of the individual batteries.  
See below.  
Figure 12 Batteries Connected in Series  
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Cabling and Hook-up Configurations  
Series-Parallel Connections  
As the name series-parallel implies, both the series and parallel  
configurations are used in combination. The result is an increase in both the  
voltage and the capacity of the total battery bank. This is common with all  
battery-inverter system voltages. The smaller, lower voltage batteries are  
first connected in series to obtain the necessary voltage, and then these  
“batteries connected in series” sets are connected in parallel to increase the  
battery bank capacity. See below.  
Figure 13 Batteries in Series-Parallel Connections  
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Xantrex Technology Inc.  
1 800 670 0707 Tel toll free  
1 408 987 6030 Tel direct  
1 800 994 7828 Fax toll free  
customerservice@xantrex.com  
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