Pentair SMART UV EU18-U - Page 15

15
SMART UV® UV DISINFECTION STERILIZER Installation and User's Guide
OPER ATION
a check valve or ball valve (see lter instructions/
recommendations). See Diagram 3.
NOTE: Before gluing piping or reducer bushing into
the UV’s union or socket, remove the quartz sleeve
assembly to prevent glue from dripping onto the
quartz sleeve.
NOTE: Use threaded seal tape on all threaded
connections.
Wet-Dry with External or Submersible Pump
Installation
This installation conguration shows the SMART
UV System
®
UV Sterilizer capacity matched to the
recirculating ow rate performance of the pump.
We recommend mechanical lter media being used
inside the over-ow and at the top of the wet-dry
lter.
Installing a check valve after the UV will eliminate back
siphoning. Installing true-union ball valves will allow
ow adjustments and UV removal. For best results,
install a saddle-style water ow meter, mounted
horizontally on the outlet side of the UV. Follow the
water ow meter manufacturer’s instructions for
proper installation and operation. See Diagram 4.
NOTE: Before gluing piping or reducer bushing into
the UV’s union or socket, remove the quartz sleeve
assembly to prevent glue from dripping onto the
quartz sleeve.
NOTE: Use threaded seal tape on all threaded
connections.
Wet-Dry w/External or Submersible Pump
Installation
This installation conguration is identical to Diagram
4 with the addition of a bypass manifold. The bypass
is used to deliver a precise water ow to the SMART
UV when the overall clean water return ow rate
exceeds the UV’s capacity.
Installing a check valve after the UV will eliminate
back siphoning. Installing true union ball valves will
allow ow adjustments and easy UV removal for
servicing. For best results, install a saddle-style water
ow meter, mounted horizontally on the outlet side of
the UV. Follow the water ow meter manufacturer’s
instructions.
NOTE: Before gluing piping or reducer bushing into
the UV’s union or socket, remove the quartz sleeve
assembly to prevent glue from dripping onto the
quartz sleeve.
NOTE: Use threaded seal tape on all threaded
connections