Blue Sky Solar Boost 3000i - Manual (Page 11)

Installation and Operation Manual
10
AUXILIARY OUTPUT
The auxiliary output can serve one of two primary functions; 1) A 2 amp auxiliary battery charger (factory default setting), or 2) A 20 amp Low Voltage
Disconnect (LVD) load controller which may also provide variable Dusk-to-Dawn lighting control. The Charge/Load functionality is selected with the out (output)
selector as described in the Charge And Load Control Settings section The Aux Out indicator will illuminate whenever the auxiliary output is ON regardless of
whether an auxiliary battery or load is connected or not.
¾ CAUTION: The auxiliary output CANNOT perform both auxiliary battery charge and load/lighting functions at the same time. DO
NOT use the 20 amp Load terminal for auxiliary battery charge or the 3000i may be damaged in a manner that voids the warranty.
For clarity Figure 5 only shows additional wiring required for auxiliary output use and assumes basic system wiring shown in Figure 4
is complete. Auxiliary output compression terminals accept #22
−12 AWG wire and are to be tightened to 6 in-lb (0.67 nm).
AUXILIARY BATTERY CHARGE – “out” setup selector set to “ch9” (charge)
The auxiliary charge function is used to charge an auxiliary battery of the same voltage as the primary battery. Its purpose is not to charge an auxiliary
battery that is regularly discharged but rather to maintain a battery that is infrequently used such as the engine start battery in a Motorhome. The primary battery is
first priority and the auxiliary battery is second priority. If the primary battery is charging in Absorption or Float, meaning that it does not need all available solar
power, up to 2 amps is diverted to the auxiliary battery at the same charge voltage. Auxiliary battery charge is disabled during Bulk or Equalization. Use 14 awg
wire to minimize voltage drop and 25 amp maximum over current protection. Auxiliary battery negative must connect to primary battery negative.
AUXILIARY OUTPUT WIRING DIAGRAM
FIGURE 5
LOAD CONTROLLER – “out” setup selector set to “Lod” (load)
The load controller can deliver up to 20 amps of output and operates as a high side switch to battery positive. Default settings are for Low Voltage
Disconnect (LVD) with ON at V
BAT
≥12.6V, and OFF at V
BAT
≤11.5V. ON/OFF operation may also be based on battery amp-hours from full if an IPN-ProRemote
display is present in the system. See the IPN-ProRemote manual for more detail regarding amp-hour setup and control. The ON/OFF condition must be
continuously valid for 20 seconds before switching will occur. If the higher/lower setting values are reversed, i.e., ON threshold is lower than the OFF threshold, the
output control logic is inverted such that low battery voltage turns the output ON.
¾ CAUTION: 25 amp maximum over current protection for the load control output must be provided externally. If user supplied over
current protection is not provided and the load control output is short circuited the 3000i will be damaged in a manner that voids the
warranty. DO NOT use load control to directly drive ballasts, inverters, or other highly capacitive loads as this may damage the load
control output in a manner that voids the warranty. Use an external mechanical or solid state power control relay driven by the
3000i’s load control output to operate these difficult loads.
If the load control is configured to operate based on net battery amp-hours, configure ON/OFF voltage thresholds as well. If
amp-hour from full data is not available from the IPN-ProRemote, voltage based operation will resume. ON/OFF thresholds must
not be the same value or improper operation will result.