13
It is essential that all non-operational lamps
be changed immediately to maintain system
efficiency.
more
4-20 mA sensor signal
option
This option works with the optional S-254 optical
sensor. It generates a 4-20 mA output signal based upon
the relative UV intensity which may be monitored at a
remote control panel or control PC. The customer is
responsible for providing an appropriate 4-20 mA
display instrument and connecting it.
A second NEMA-rated enclosure is provided and
connected to the remote sensor enclosure. The cus-
tomer is responsible for bringing peripheral instrument
wires through the 1/2” electrical knockout on the bottom
of the dedicated NEMA enclosure and connecting it to
the indicated terminals.
T-120 temperature safety
control option
The Temperature Safety Control consists of a heat-
sensing probe. This device protects against inadvertent
overheating inside the UV chamber, which can damage
the UV lamps and the ballast/LED Display Panel circuitry.
The Temperature Safety Control senses raised water
temperature and assumes the UV lamps are operating
“on” with no water flow.
STANDARD UNITS
The device automatically turns the UV lamps off when
the water temperature reaches 120ºF (49ºC) and auto-
matically turns the UV lamps back on when the tempera-
ture falls to 100º F (38ºC).
HIGH TEMPERATURE (HT) UNITS
The device automatically turns the UV lamps “off” when
the water temperature reaches 170ºF (77ºC) and auto-
matically turns the UV lamps back “on” when the
temperature falls to 150ºF (66ºC).
This temperature spread prevents excessive stop/starts
during no flow conditions, and it protects the UV lamps
and the electrical components from overheating damage.
The temperature probe is located in the inlet riser. No
operator intervention is required other than periodic
visual verification that the UV lamp(s) are properly
operating during normal water flow conditions.
The cutoff temperature has been preset at the factory.
Should you require a different set point, please contact
Aquafine for assistance.
lamp out alert indicator
option
Lamp Out Alert is an optional accessory package that
activates a relay when a UV lamp fails to operate.
A visual inspection of the LED UV Lamp Display Panel
will indicate which lamp has failed. Dry contacts are
provided for customer connection. The dry contacts are
rated at 3.0 Amps maximum @ 120 volts.
If the unit is equipped with the Lamp Out Alert Option,
the three wires (COM, NC, NO) terminating from the
LOA must be filed terminated within a filed installed
junction box.
A main disconnect switch is also required, so that the
electrical power can be completely isolated from the unit
during servicing.
It is absolutely necessary that the unit be properly
grounded for safe and proper operation.
Summary of Contents for MP-2-SL
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