Hydrotech PURA ABuv 6_8_12 - Manual (Page 5)

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1. The use of a bypass assembly is recommended in case the system requires ‘off-line’ maintenance. If this is the case,
it must be noted that the system will require supplementary disinfection of the distribution system if any water is used
during this bypass condition. In addition, during bypass, the water will NOT be disinfected until such time as the system
is sanitized and returned to service. Please refer to the complete disinfection procedure as outlined on page 7 of this
document. If the water is to be offline, the water must be boiled for twenty minutes prior to consumption.
2. Select a suitable location for the disinfection system and its related components. As it is recommended to install a
ground fault protected circuit (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) (Figure 1A), or horizontally (Figure 1B), When selecting a mount-
ing location, you must also leave enough space to allow for the removal of the UV lamp and/or quartz sleeve (typically
leave a space equal to the size of the reactor chamber itself).
Pre-Installation Instructions
The figure below shows the proper water flow for horizontal or vertical installation. Make certain that your unit and the
inlet and outlet pipes are in the right position for either horizontal or vertical installation
NOTE: when installing in horizontal direction, please make sure that UV chamber is on a slope to allow water to be
drained during servicing
Figure 1A
Minimum Clearance to
unit overall length
Total Length of the UV
System
Figure 1B
Total Length of the UV System Minimum Clearance to
unit overall length