Crossfire Hallett 13 - 2 Installation Instructions; Before Beginning Installation; Water Conditions - Pre-Treatment Parameters

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Released on 10/31/05 - X800058A UV Pure Technologies Inc. © 2005
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2. INSTALLATION INSTRUCTIONS
Before Beginning Installation
Water Conditions - Pre-treatment Parameters
Note this section is designed to ensure the optimal performance of your Hallett
system. Please review the following pre-treatment parameters prior to
installation.
If any specifications are of concern or unclear please contact your water dealer
or specialist. Note some of the information below is technical in nature and you
may want to contact your water treatment specialist to review the parameters.
IMPORTANT - Should any of the preceding water parameters exceed the
recommended limits, the system will not be serviceable under warranty.
Water Parameters for Treating Drinking Water:
The minimum water requirements for operating the Hallett system are:
• UV Transmittance - more than 75 percent transmission of ultraviolet light
(if there is color in the water the UV transmittance may fall below 75 and
the system will not provide the necessary UV dose for safe drinking
water). It is recommended for all surface water applications for the water
to be tested for UV transmittance.
• Total Dissolved solids (TDS) - must be less than or equal to 1000 mg/L
(mg/L=ppm)
• Level of turbidity - or cloudiness - of less than or equal to 1 NTU
(nephelometric turbidity unit). A 5 micron sediment filter is recommended
upstream of the unit to reduce turbidity (the presence of a filter will also
simplify disinfection of plumbing – see Disinfecting the Plumbing). For
surface waters, a dual gradient pre-filter (75x25 or 50x5) is recommended
in addition to the 5 micron filter.
Water Capacity:
Hallett 13
The water treatment range for the Hallett 13 is 0–50 liters per minute (or 0–13.3
U.S. gallons per minute), with a working pressure of 69–690 kPa (or 10–100
psig).
Hallett 30
The water treatment range for the Hallett 30 is 0–113 liters per minute (or 0–30
U.S. gallons per minute), with a working pressure of 69–690 kPa (or 10–100
psig).
The Hallett 13 and Hallett 30 include a flow regulating device that will limit the
flow rate. Warning: Do not remove this device or water may flow through the