Installation
7
•
The complete water system, including any pressure or hot water tanks, must be sterilized before start up by flushing with
chlorine (household bleach) to destroy any residual contamination. Refer to
Section 3.2
.
•
The UV system is intended for indoor use only, do not install UV system where it may be exposed to the weather.
•
Install the UV system on cold water line only, before any branched lines.
•
A 5 micron sediment filter must precede the UV system. Ideally, the UV system should be the last treatment the water
receives before it reaches the faucet.
Procedure:
1.
Figure 3
shows the installation of a typical UV system and the related components that may be used for the installation.
The use of a by-pass assembly is recommended in case the system requires “off-line” maintenance. In this case, it
requires a supplementary disinfectant for the distribution system if any water is used during by-pass condition. In
addition, during by-pass, the water will NOT be treated and a “DO NOT CONSUME THE WATER” tag should be
physically installed on the by-pass assembly until such time as the system is sanitized and returned to service. For more
information, refer to
Section 3.2
. If the water is to be consumed while the system is off-line, the water must be boiled for
twenty minutes prior to consumption.
2.
Select a suitable location for the UV system and its related components. As it is recommended to install a GFCI, make
sure that this is taken into consideration prior to any installation. The system can either be installed vertically (inlet port at
the bottom) as shown in
Figure 4
A
, or horizontally as shown in
Figure 4
B
. However, the vertical installation is the most
Figure 3 UV Treatment System
Note:
UV system should
be the final piece of
treatment equipment
Optional flow restrictor
Note:
Mandatory for
NSF credited systems
Optional water
softener
To
drain
Optional by-pass
assembly
Optional by-pass
assembly
Optional
by-pass
assembly
Optional
solenoid
valve
Hot water pipes
Cold water pipes
Customer supplied
GFCI circuit to
match voltage
Water
meter
Main
water
shut-off
5 Micron
sediment
filter
Optional
carbon
filter
Optional
by-pass
assembly
Optional
drain
cock
