UV Pure Technologies Crossfire Technology Hallett 1000NC, Instruction Manual

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Hallett Instruction Manual
Released on 8-Aug-19
– GH2B
Page 27 UV Pure Technologies Inc. © 2019
quickly during a wiper cycle.
Built in Purge Valve (available on most models)
The Hallett contains a flushing or purge valve that cycles water through the
unit during long periods of no water usage. The unit monitors water usage by
measuring the rise in water temperature within the treatment chamber. During
periods of no water flow, the purge valve on the small units can expel 1 gallon
(4 liters) of water every 60-90 minutes; the largest unit can expel up to 3
gallons (12 liters). If the largest unit fails to purge and the water temperature
exceeds 122°F (50°C), the unit will shutdown to prevent overheating.
6. T
ROUBLESHOOTING
The Hallett will operate unattended until a fault arises.
If an
alarm occurs, the solenoid valve (optional) will close, preventing water
from flowing; the LED turns red; the audio alarm will beep continuously; the
touchscreen turns red and displays a message; the RUN contact will open to
indicate the unit is no longer treating. The fault should be corrected to return
the unit to normal operation and have the water flow again.
If a
warning occurs, the solenoid valve (optional) remains open; the LED
flashes red; the audio alarm will beep once; the screen turns yellow and
displays a message; the warning contact will close to indicate the unit is still
treating but in an abnormal state. The warning should be addressed as soon
as possible and if left unattended, could turn into an alarm.
The Message History, available in the Settings menu, item 2.6, is very useful
in troubleshooting since it contains up to 100 messages/events with
associated recorded data such as times, UVI, UVT, UV sensor values, and
temperatures.
In the event of an alarm, in many cases, a physical inspection of the unit with
the power off should be done to try to identify a cause. A slow water leak for
instance, near the top of the unit could stain lamps or reflectors and may not
be uncovered without a full system inspection.
Dose Alarm
The Dose Alarm occurs when there is insufficient UV dose to treat the
maximum flow rate prescribed by the unit. The Dose Alarm could be a result
of low UV intensity or low UV Transmittance (UVT) or a combination of both.
Review both values in the System Info Menu to determine which is causing
the alarm and take corrective action. It is highly recommended to have a UVT
sample taken to confirm system prediction.
The Advanced Settings menu under Force Outputs conveniently provides the
ability to manually turn on and off devices to confirm their operation. Devices
return back to their automatic position after 10 minutes.
Cycling the power is also useful to occasionally reset the software.