Copyright 2013 HotSpot Energy
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WARNING:
Be certain that the solar connection is made with correct polarity. Turn on the
solar array breaker/disconnect and measure the voltage on the open wires BEFORE
connecting to the TriStar MPPT. Disconnect the solar breaker/disconnect before wiring to the
controller.
6. Connect the Solar + (positive) wire to the Solar + terminal on the TriStar MPPT. The Solar + terminal
has a yellow cover.
7. Connect the Solar - (negative) wire to one of the Common Negative terminals on the TriStar MPPT.
Torque all four (4) power terminals to 50 in-lbs. (5.65 Nm)
POWER UP
WARNING:
Connecting the solar array or battery connection with reverse polarity will
permanently damage the TriStar MPPT.
•Confirm that the Solar and Battery polarities are correct.
•Turn the battery disconnect switch on first. Observe that the LED’s indicate a successful start-up. (LED’s
blink Green - Yellow - Red in one cycle)
•Note that a battery must be connected to the TriStar MPPT to start and operate the controller. The
controller will not operate only from solar input.
•Turn the solar disconnect on. If the solar array is in full sunlight, the TriStar MPPT will begin charging. If
an optional TriStar Meter is installed, charging current will be reported along with charging state.
Connect the four (4) power conductors shown in figure 3-7 above in the following steps:
1. Confirm that the system input and output disconnect switches are both turned off before connecting
the power wires to the controller. There are no disconnect switches inside the TriStar MPPT.
2. Provide for strain relief if the bottom knockouts are used and conduit is not used.
3. Pull the wires into the wiring box. The Remote Temperature Sensor and Battery Sense wires can be
inside the conduit with the power conductors. It is easier to pull the RTS and Sense wires before the
power cables.
4. Connect the B (positive) wire to the B terminal on the TriStar MPPT. The B
terminal has a red cover.
5. Connect the Battery - (negative) wire to one of the Common Negative terminals on the TriStar MPPT.
