Zero ARB User Manual

14 | P a g e
6.11 Using the battery protection feature
Your ARB Fridge Freezer is fitted with a battery protection system that controls the level
of discharge from your battery. The battery monitor has three setting; HIGH, MEDIUM
and LOW. When set to HIGH, the battery monitor will provide maximum protection for
the battery against excessive discharging. When set to LOW, the battery monitor will
allow maximum use of the energy stored in the battery. Table 1 shows the cut in/cut
out voltages for the three battery monitor settings.
The battery monitor will cause the unit to switch off once the supply voltage falls below
the set level. The unit will automatically restart once the restart voltage is reached.
NOTE - When the battery monitor is active, the cooling unit (including compressor) will
not run. The control panel CHECK LED will flash ORANGE and the display will show
“ER1”. The cooling unit will not restart until the voltage level of the battery reaches the
restart voltage listed in Table 1.
BATTERY MONITOR MODE
LOW (Lo)
MEDIUM (nE)
HIGH (HI)
Switch off voltage – 12V DC
10.1 ± 0.3 V
11.4 ± 0.3 V
11.8 ± 0.3 V
Restart voltage – 12V DC
11.1 ± 0.3 V
12.2 ± 0.3 V
12.6 ± 0.3 V
Switch off voltage – 24V DC
21.5 ± 0.3 V
22.5 ± 0.3 V
23.0 ± 0.3 V
Restart voltage – 24V DC
23.0 ± 0.3 V
24.0 ± 0.3 V
24.5 ± 0.3 V
TABLE 1.
If your fridge freezer is connected to the starting battery on a 12/24V DC system, ARB
recommends that the battery monitor level be set to HIGH or MEDIUM.
If your fridge freezer is connected to an auxiliary battery on a 12/24V DC system, ARB
recommends that the battery monitor level be set to LOW.
NOTE - ARB recommends that the battery be charged once the battery monitor has
been triggered. ARB also recommends that all non-essential electrical equipment that
draws power from the same source as the fridge freezer be turned off until the battery
is fully charged.
To change the battery protection level:
 Turn the fridge freezer ON.
 Press three times (four times for Dual Zone) to display current battery
protection setting.
 Press or to change the battery protection voltage between High (HI),
Medium (nE) and Low (Lo).
 After 5 to 6 seconds of inactivity, the battery protection voltage will be set and
the display will show the current cabinet temperature.

Zero ARB Specifications

General

Brand	Zero
Model	ARB
Category	Freezer
Language	English