compatible with this system. It is important that the charging current from these shows on the TM-2030 amps
display— (see section 4.1.5 below) then the system will properly account for the charging of these others. If you
have another solar controller it should have a separate set of panels from which it is charging—you should not
attempt to have the same set of panels go to two different controllers.
4. Installation of the SC-2030: Explained in five sections:
4.1 Planning the installation
4.2 Verifying that TM-2030 reads volts and amps correctly
4.3 Tools and hardware required
4.4 Installing SC-2030 and connecting solar panels, Batteries, Temperature sensor
4.5 Verifying operation and installation.
4.1. Planning the installation
Installation must be performed by a person knowledgeable of proper electrical wiring, best practices, safety
and applicable electrical codes. If you do not meet these qualifications, please ask someone qualified to
perform, supervise, or inspect the installation.
4.1.1 Normal configuration—Paired with a TM-2030
For best performance, the SC-2030 should be paired with a
TM-2030 (TriMetric) monitor. The charge controller and the monitor are connected together using a low-cost telephone wire,
which can be over 100 ft. long.
4.1.2 Minimal configuration—Standalone.
Without the TM-2030, the SC-2030 Solar Charge Controller can perform
only basic charge regulation. There are two jumper selected parameters located on the SC-2030 that are then used to regulate
the charging: The system voltage can be set to 12 or 24V. The battery type can be designated "AGM" or "liquid
electrolyte." These determine the charging only when the TM-2030 is not connected—otherwise they are ignored. In this case,
there is an "absorb" stage set to 14.6 or 29.2 volts (for 12 or 24V liquid electrolyte systems) or 14.3 or 28.6 (for AGM systems)
which runs for two hours, followed by a float stage of 13.2 or 26.4 volts.
4.1.3 Temperature Compensation:
The optional temperature sensor is recommended especially when using AGM or
Gel batteries, unless the batteries are kept at a fairly constant ambient temperature.
4.1.4 Review wiring diagram inSC-2030 Instructions included with unit.
4.1.5 Can more than one charge controller be used?
:
If the TM-2030 and SC-2030 are connected together, other
charge controllers may be added for additional charging current, while still retaining most of the benefits gained by using this
paired system. They must be connected so the TM-2030 "sees" this current when they are charging. Also, though all chargers
go to the same battery set, the solar panels should be segregated into groups—with each group being controlled by only one
charger.
4.1.5 Locating TM-2030 monitor and SC-2030 charger
.
The TM-2030 is usually placed somewhere with access
in the living area to allow easy viewing and control of the SC-2030. Four small wires usually 22 or 24 gauge connect the TM-
2030 to the batteries and required shunt. In addition a four wire telephone cable will need to be installed that sends control
information from TM-2030 to SC-2030. These wires can be at least 100 feet long (30 meters). The SC-2030 will usually be
located in the wire path from panels to batteries to minimize wire length from panels to batteries. Unless the SC-2030 will be
used without the TM-2030, it is not required that the SC-2030 be located right near the batteries.
