Pre set voltages x 2 for 24 v models | Sterling Plumbing BB122430

Push button marked 2 again: screen E/b this displays the output voltage and current of the battery you are charging. ( a less current but higher voltage )

Screen F/a: Push button marked 3 ( this is the setup information screen ) This screen gives different information depending on the system cycle, it is informing you., WET OPEN= wet open lead acid cell batteries, this shows that the system battery type dip switches are set for wet cell batteries,( 14.8 v max setting ) Bulk charge refers to the initial charge rate, this could change to a timer, then adventually change to float ( float charger 14 volts )

Push button marked 3 again: screen F/b. This screen shows the time left to the next pause cycle ( for 2.5 min. ) and that it is on auto. The auto can be removed by pushing buttons 1 and 2 together. This removes the auto pause control, and the charger will still have all its safety and timing cycles, every 20 min. pause

Push button marked 3 again: screen F/c. R:v2.0 C:v2.0, this shows the software version for remote ( R ) and for main PCB ( C ). the 12vIN-12vOUT, refers to the motel, a 12v-12v unit. There are 12-24 v, 24-24 and 24-12.

Screen G/a: Push button marked 4.: There are 2 x screens on this button. Push once for screen a, then again for screen b. Screen a shows the alternator temp and the domestic battery temp, if the temperature sensors are not fitted it will default to 20 deg C

Screen G/b:: Push button marked Temp 4a+b: There are 2 x screens on this button. Push once for screen a, then again for screen b. Screen b shows the box heat sink temperatures, LHS stands for left hand side, Guess what RHS stands for.

Do not expect these to be the same temperature

Pre set voltages: ( x 2 for 24 v models )

Minimum input voltage the unit will run at 13 volts

Voltage the unit switches off and drops into sleep mode

below 12.8 v for at lease 15 mins

Power consumption on sleep mode. 5 ma ie 0.005 amps max input voltage trip 15.5

max output voltage trip 15.5

All voltages refer to a default temperature of 20 deg c

if the battery temperature sensor is fitted these voltages will be less depending on

the battery temperature

Alt temp disengage	100 deg C
Reset alt	80
Battery temp trip	50 deg C
Heat sink trip	70 deg C
Heat sink reset	60 deg C
Fans on at	50 deg C
Fans on over	35 amps
Fans of at	45 deg C
Low battery alarm	1 2.5 v
Low battery regulation	13 v

high battery voltage trip 15.5v

Max input current at 12 v = 45 amps amp meter +/- about 10% voltmeter +/- 1%

BB122430, BB121250 specifications

Sterling Plumbing has established itself as a reputable name in the plumbing industry, known for delivering high-quality products that blend functionality with contemporary design. Among their impressive range of fixtures, the BB121250 and BB122430 models stand out for their innovative features and robust performance.

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