To Read A Water Or Sewer Tank Level �5-16; To Read The Battery Voltage; To Program The Led Brightness; Solar System - Airstream International Serenity 23CB 2020 Owner's Manual

Interior
To Read a Water or Sewer Tank Level
1� Press the button corresponding to the tank to be
checked and release it, the display will show the
levels in percent on the LED display� If no other
button is pressed, then the display shuts off after
about 5 seconds�
2� If another button (including BATT) is pressed
before the 5 second time is up for the first button,
the display will immediately switch to show the new
level or voltage� The 5 second time-out is restarted
every time a button is pressed�
3� To continuously display a reading, press and
release the desired button, and then press the
same button a second time� When the button is
released, the display will be on hold mode, which
is indicated by the decimal point on the right hand
side turning on� While the display is in the hold
mode it will recheck the level once per second
so the user can watch the level change while the
tank is being filled or drained. The display will
automatically shut off after 5 minutes in hold mode�
To end the hold mode before the 5 minutes is up,
press any tank button, and the display will shut off�

To Read the Battery Voltage

1� Press the BATT button and release it, the display
will show the battery voltage on the LED display
2� If no other button is pressed, then the display will
shut down after about 5 seconds� If the BATT
button is held down, the display will continuously
recheck the voltage and show the updated value�
The reading may flicker back and forth between
two values�
3� If another button is pressed before the 5 second
time is up for the BATT button, the display will
immediately switch to show the value for the new
button� The 5 second time-out is restarted every
time a button is pressed�
4� There is no hold mode for the battery voltage
5-16

To Program the LED Brightness

1� The display needs to enter the brightness
programming mode� To do this, press and hold
the BATT button; the display will show the battery
voltage�
2� While continuing to hold the BATT button, press
and hold the GREY button� Continue to hold
both buttons for approximately 5 seconds until
the display shows "bri" to indicate the brightness
programming mode� When this occurs, release
both buttons�
3� Press the GREY tank button to increase
brightness, or the FRESH tank button to decrease
brightness
4� When the display shows the correct brightness,
press the BATT button to exit the programming
mode�

Solar System

Airstream utilizes Zamp solar panels and a Sun-
Explorer charge control and display system� Cut
the cord to expensive daily shore power hook-ups
with the 12-volt solar charging system� Ensuring the
panels are clean, not partially shaded by trees or other
interference will promote solar charging�
The Sunexplorer charge control performs these basic
functions:
1� It senses when the battery is fully charged and
disconnects the charge current to avoid over-
charging the battery�
2� It resumes charging the battery when the battery
voltage has dropped sufficiently to accept
additional charge current�
3� It checks the availability of charge current, by
cycling the relay every 4 minutes� If there is
insufficient charge current available, it's internal
relay will disconnect the battery to prevent
discharge through the solar panels at night�
Three different colored LED's indicate the status of the
battery charge� Green = Full, Yellow = Partial, blinking
Orange = low� When orange LED is blinking, due to low
voltage, both the green and yellow LEDs will be dimly
lit� Manuals on their use are included with the Airstream
owner's packet�
2020 International