User manual
2.0 GENERAL INFORMATION
MORNINGSTAR CORPORATION 9
2.3 Optional Accessories
The following accessories are available for purchase
separately from your authorized Morningstar dealer.
Remote Temperature Sensor (Model: RTS)
The RTS measures battery temperature for accurate temperature
compensation and is recommended when the ambient battery
temperature differs from the ambient controller temperature by
+/- 5 degrees C or more. An RTS can be attached to the SunSaver
MPPT at any time. The SunSaver MPPT will automatically use the
RTS for battery temperature compensation when installed. The
standard cable length is 33 ft (10 m), and can be extended to 100
ft (30 m) if required. Installation instructions are provided with the
RTS.
NOTE: The use of a Remote Temperature Sensor is
strongly recommended. Controller location, air ow, and
system power can drastically affect the local temperature
sensor reading. A RTS will provide optimal charging
performance.
Remote Meter (Model: RM-1)
The digital Remote Meter displays system operating information,
error indications, and self-diagnostic read-out. Information is
displayed on a backlit 4-digit custom LCD display. The large
numerical display and icons are easy to read and large buttons
make navigating the meter menus easy. Additionally, a status LED
and three (3) battery SOC LEDs provide system status at a glance.
The meter can be ush mounted in a wall or surface mounted
using the mounting frame (included). The RM-1 is supplied with 33
ft (10.0 m) of cable, a mounting frame, and mounting screws. The
RM-1 connects to the RJ- 11 Meter port on the SunSaver MPPT.
PC MeterBus Adapter
TM
(Model: MSC)
The MSC converts the MeterBus RJ-11 electrical interface to an
isolated standard RS-232 interface which enables communication
between the SunSaver MPPT and a personal computer (PC). The
MSC is required for programming custom charging setpoints and for
logging data. See Section 4.7 Programming Custom Setpoints.
3.0
3.0 Installation Instructions
3.1 General Installation Notes
• Read through the entire installation section rst before
beginning installation.
• Be very careful when working with batteries. Wear
eye protection. Have fresh water available to wash
and clean any contact with battery acid.
• Use insulated tools and avoid placing metal objects
near the batteries.
• Explosive battery gasses may be present during
charging. Be certain there is sufcient ventilation to
release the gasses.
• Do not install in locations where water can enter the
controller.
• Loose power connections and/or corroded wires
may result in resistive connections that melt wire
insulation, burn surrounding materials, or even cause
re. Ensure tight connections and use cable clamps
to secure cables and prevent them from swaying in
mobile applications.
• Only charge lead-acid or NiCd batteries.
• The SunSaver MPPT Battery connection may be
wired to one battery or a bank of batteries. The fol-
lowing instructions refer to a singular battery, but it
is implied that the battery connection can be made
to either one battery or a group of batteries in a bat-
tery bank.