5uM. For applications on any water supply other than rain water tanks and mains water, please contact the
manufacturer to determine the correct system.
Feed Water Conditions
*Guideline Only*
Min
Max
Inlet Pressure
100 kPa
500 kPa
TDS
0 mg/L
2,000 mg/L
Iron
0 mg/L
0.02 mg/L
Manganese
0 mg/L
0.01 mg/L
Hardness
0 mg/L
150 mg/L
V. Space Requirements
The Ultraviolet systems are not IP rated, therefore are not suitable for external installation without adequate
weatherproofing or cover from the elements including but not limited to Rain/Moisture/High Humidity &
Frost. For external installations, the ballast must be installed in an IP 65 or better waterproof enclosure (not
supplied) OR installed in a suitable location not exposed to the previously mentioned elements.
The System is supplied with either plastic (GT7-2K) or Aluminium mounting clamps designed for installation
on the wall (screws not included). It is ideal for the system to be mounted horizontally however if necessary,
vertical installation (open end to the top) is acceptable, the outlet should also be at the top.
The chamber must be mounted so that the chamber remains full of water at all times. The ports should be
facing up for a horizontal installation so that the air can escape from the chamber. You must allow enough
space to perform maintenance on the system. Allow 2x the length of the chamber at the open end to allow
the UV Lamp & Thimble to be installed/removed. When mounting the chamber, consideration must be
made for the weight of the system being full of water due to the stresses associated with the plumbing
fixings. The stainless-steel chamber and surrounding plumbing must be earthed to prevent electrolysis
(which will cause corrosion).
VI. What is Ultraviolet Sanitation
Ultraviolet sanitation works by breaking down the cell wall of a micro-organism allowing oxidation to occur
which in turn prevents the bacteria from multiplying until it is finally eradicated. Ultraviolet filtration is a
chemical free solution to water sanitation creating no by products in the water.
Ultraviolet systems are rated based on a dosage level of radiation into the water (mJ/cm²) with 30mJ being
the standard level of disinfection and up to 40mJ for Australian Drinking Water Guidelines.
For drinking water and domestic water use, a UV system should always be installed as the last point of
contact. For example, on a whole house filtration system, the filters should be installed before the UV
system. This effectively eliminates (or significantly reduces) the chances of re-contamination after the UV
unit.
VII. Example Applications
UV systems are utilised in many different ways. The main applications are
Household Water Filtration,
Commercial Water Treatment & Bacterial Pre-Treatment.
Household Water Filtration
generally comes in 2 forms: Undersink Point of Use filtration or Whole House
Point of Entry filtration. Both applications are set up the same, with a pre filter followed by the UV system as
a final point of contact.
Commercial Water Treatment
is common due to council regulations governing the supply or water or food
to the public. The law requires a form of sanitation in the filtration process and this is usually done in the
form of UV, RO or UF filtration.
Bacterial Pre-Treatment
is sometimes required as a pre-treatment stage for ultra-fine (UF) or Reverse
Osmosis (RO) systems to prevent possible bio-fouling. UV can treat higher levels of bacteria to reduce the
chance of this occurring.
