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Call:
336-547-9338
or visit:
anuainternational.com
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2.
Two Tanks Configuration
The total emergency storage volume is calculated based on the available volume in the
pretreatment tank above the normal operating level to the inside tank lid. In some jurisdictions,
the riser volume can be counted for emergency storage. Emergency storage can be calculated
as follows:
Pretreatment tank:
Determine the volume between the top siphon hole to the top of
the tank (inside lid).
If allowed per local jurisdiction, determine the volume in the risers.
Total storage volume = Pretre Risers
3.
Alarm Conditions
An alarm will trigger under the following conditions:
High water float activated in reactor chamber.
Aerator current <1 or no current.
Siphon/sludge pump current <1 or no current.
The operational sequence is outlined below:
If the clear water discharge pump fails or malfunctions, a high water condition will
occur in the reactor chamber. The high water condition will trigger the an alarm. The
high water alarm will suspend operation of the siphon/sludge pump.
If the current sensor does not read proper current to the aerator, an alarm will trigger.
The aerator alarm will suspend operation of the siphon/sludge pump.
If the current sensor does not read proper current to the siphon/sludge pump, an alarm
will trigger. At this point, this pump is not operational.
Aerator
Siphon/sludge pump
Clear water pump
Figure 5
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