LEGEND
3
2
SunSaver Solar Controller
Quick Start Guide
(+)
(–)
(+)
(–)
Solar Disconnect*
(PV GFP required per
NEC 690)
Photovoltaic (PV) Array
Battery / Battery Bank
Battery
Disconnect*
DC Load
Disconnect*
Power UP Sequence:
1. Connect
Battery/Battery
Bank.
2. Connect
Solar.
Power DOWN Sequence:
1. Disconnect
Solar.
2. Disconnect
Battery/Battery
Bank.
Mounting:
#2
Minimum Clearance Requirements:
CAUTION: Equipment Damage
Do
not
expose
the
SunSaver
CC
to
weather.
Locate
in
a
dry,
protected
area
to
prevent
equipment
damage.
Ensure
the
minimum
clearance
requirements
are
followed
to
provide
adequate
ventilation
and
prevent
the
unit
from
overheating.
IMPORTANT:
Example
only.
Actual
wiring
may
vary.
READ
the
SunSaver
Installation,
Operations,
and
Maintenance
Manual
for
mandatory
safety
requirements.
All
configuration
must
comply
with
local
and
national
electric
codes.
Consult
your
local
electric
authority
to
ensure
compliance.
Negative (–)
Positive (+)
Ground
See
the
Morningstar
PV
String
Calculator
at:
http://string
‐
calculator.morningstarcorp.com/
Component
Load
Terminals
Wire
Size
(Solid)
#10
AWG
5.2
mm
2
(Maximum)
Tool
Required
3/16"(5
mm)
Flathead
Screwdriver
Battery
Terminals
WIRING AND TORQUE REQUIREMENTS
Torque
(Maximum)
10.6
in
‐
lbs.
(1.2
Nm)
Solar
Terminals
Securing
hardware
not
shown.
WARNING: Explosion Hazard
Never
install
the
SunSaver
in
an
enclosure
with
vented/
flooded
batteries.
Battery
fumes
are
flammable
and
will
corrode
and
destroy
the
SunSaver
circuits.
Ensure
sufficient
ventilation.
Step 1: Choose Mounting Location
Locate
the
SunSaver
on
a
vertical
surface
within
10
feet
(3
m)
of
the
battery
bank
that
is
protected
from
direct
sun,
high
temperatures,
and
water.
Step 2: Check for Clearance and Ventilation
Place
the
SunSaver
in
the
location
where
it
will
be
mounted.
Verify
that
there
is
sufficient
room
to
run
wires
and
that
there
is
ample
room
above
and
below
the
controller
for
air
flow.
Step 3: Mark Holes
Use
a
pencil
or
pen
to
mark
the
four
(4)
mounting
hole
locations
on
the
mounting
surface.
Step 4: Drill Holes
Remove
the
controller
and
drill
3/32”
(2.5
mm)
holes
in
the
marked
locations.
Step 5: Secure Controller
Place
the
controller
on
the
surface
and
align
the
mounting
holes
with
the
drilled
holes
in
step
4.
Secure
the
controller
in
place
using
the
Mounting
screws
(included).
3/32"
(2.5
mm)
Battery
(+)
Battery
(—)
2
Wire
Size
(multistrand)
#10
AWG
5.2
mm
2
(Maximum)
Wire
Size
(fine
strand)
#10
AWG
5.2
mm
2
(Maximum)
Recommended
Order
of
Installation
1
2
3
4
4
DC Load(s)*
Communications
Security
Lighting
Industrial
Residential
Primary
System
Ground
3
1
2"
(51
mm)
Fuses
or
Disconnects
*Fuse
or
breaker
sizing
must
be
based
on
required
wire
ampacity.
If
using
a
fuse,
do
NOT
insert
the
fuse
in
the
fuse
‐
holder
until
after
all
the
other
connections
have
been
completed.
(+)
(–)
12
Vdc
Module
12
Vdc
Module
30
Voc
Max
@
12
V
battery
/
60
Voc
@
24
V
battery
Status
LED
Battery
SOC
LEDs
IMPORTANT:
Array
Voltage
should
NEVER
exceed
the
maximum
input
voltage.
BATTERY STATE-OF-CHARGE (SOC) LED
Green
Green
Green
Green
Indication
Battery
Status
SOC
LED
Fast
Flashing
(2
Flash
/
sec)
Medium
Flashing
(1
Flash
/
sec)
Slow
Flashing
(1
Flash
/
2
sec)
ON
Solid
Equalize
Charge
Absorption
Charge
Float
Charge
Nearly
Full
Load
Status
Load
ON
Load
ON
Load
ON
Load
ON
Yellow
Red
Red
ON
Solid
Flashing
(1
Flash
/
sec)
ON
Solid
Half
Full
Battery
Low
Battery
Empty
Load
ON
LVD
Warning
(Load
ON)
LVD
(Load
OFF)
WARNING: Shock Hazard
Fuses,
circuit
breakers,
and
disconnect
switches
never
open
grounded
system
conductors
.
Only
GFDI
devices
are
permitted
to
disconnect
grounded
conductors.
WARNING: Shock Hazard
Test
between
all
terminals
and
ground
before
touching.
Power
or
accessory
terminals
are
NOT
electrically
isolated
from
DC
input
and
may
be
energized
with
hazardous
solar
voltage.
IMPORTANT:
Ensure
there
is
only
1
DC
Negative
‐
to
‐
Ground
Bond
in
the
entire
system.
4
2"
(51
mm)
STATUS LED
None
Green
Red
Red
Indication
Operating
State
Color
OFF
(with
heartbeat
1
)
ON
Solid
(with
heartbeat
2
)
Flashing
ON
Solid
(with
heartbeat
2
)
Night
Charging
Error
Critical
Error
¹
heartbeat
indication
flickers
the
Status
LED
ON
briefly
every
5
seconds
2
heartbeat
indication
flickers
the
Status
LED
OFF
briefly
every
5
seconds
(12-volt or 24-volt*)
*SunSaver
Model
Dependent
4
WARNING: Shock Hazard
The
solar
PV
array
can
produce
open
‐
circuit
voltages
in
excess
of
40
Vdc
when
in
sunlight.
Verify
that
the
solar
input
breaker
or
disconnect
has
been
opened
(disconnected)
before
installing
the
system
wires.
None
No
LEDs
ON
Battery
Missing
Load
OFF
