MORNINGSTAR CORPORATION
23
3.0 INSTALLATION
22
3.4 Wiring
NOTE: A recommended connection order has been
provided for maximum safety during installation. When
disconnecting, solar input must be removed first before
disconnecting battery. See caution below.
NOTE: The SunSaver is a negative ground controller.
Any one negative conductor can be earth grounded as
required. Grounding is recommended, but not required
for correct operation.
NOTE:
To comply with the NEC, the SunSaver must be installed
using wiring methods in accordance with Article 690 of
the latest edition of the National Electric Code, NFPA 70.
NOTE:
The total current draw of all system loads connected
to the SunSaver LOAD terminals cannot exceed the
controller’s load current rating.
NOTE:
For mobile applications, be sure to secure all wiring.
Use cable clamps to prevent cables from swaying when
the vehicle is in motion. Unsecured cables create loose
and resistive connections which may lead to excessive
heating and/or fire.
WARNING:
EXPLOSION HAZARD - DO NOT DISCONNECT WHILE
CIRCUIT IS LIVE UNLESS AREA IS KNOWN TO BE NON-
HAZARDOUS.
AVERTISSEMENT:
RISQUE D’EXPLOSION. NE PAS DEBRANCHER TANT
QUE LE CIRCUIT EST SOUS TENSION, A MOINS QU’lL
NE S’AGISSE D’UN EMPLACEMENT NON DANGEREUX.
CAUTION: Unit has no battery removal protection.
Disconnecting battery during charging may cause a brief
spike in load voltage (above the 15V regulation limit)
which may damage sensitive equipment.
!
ATTENTION:
Unité bénéficie d’aucune protection de retrait de batterie.
Débrancher la batterie pendant la charge peut entraîner
un bref pic de tension de charge (au-dessus du 15V limite
de règlement) qui peuvent endommager les équipement
sensibles.
Step 1: Load Wiring
The SunSaver load output connection will provide battery
voltage to system loads such as lights, pumps, motors,
and electronic devices. See
Section 4.3 Load Control
Information
for more details about load control.
LOAD
POSITIVE (+)
LOAD
NEGATIVE (-)
FUSE
SEALED
OR
FLOODED
SELECT
LOAD
BATTERY
SOLAR
Remove
Jumper
Wire for
Flooded
Battery
{
12 V
BATTERY STATUS
TEMP. SENSOR
CHARGING STATUS
!
See Operator’s
Manual
Nominal Rating
12 Volts dc
Max. Input 30 V
Solar 20.0 A
Battery 20.0 A
Load 20.0 A
Max. Ambient 65
º
C
indoor use only
Use 75 ºC Copper
Conductors Only
CONFORMS TO ISA 12.12.01
CERTIFIED TO CAN/CSA STD
C22.2 NO.213-1992
Class I, Division 2
Groups A,B,C,D
Hazardous Loc.
Temp. Code: T5
RoHS
MORNINGSTAR
S S
20L
UN AVER-
SOLAR CONTROLLER SS-20L-12V
Figure 4. Load wiring.
Connect load positive (+) and negative (-) load wires to
the system load(s) or load distribution panel as shown in
figure 4. Refer to the wire gauge chart on page 30 of this
manual for correct wire size. Use 75 °C copper wire.
If required, the negative load connection may be
earth grounded. Use appropriate gauge wire and proper
grounding methods for the installation site.
!
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3 .0