Hydrotech PURA ABuv 6_8_12 - Manual (Page 6)

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3. Mount the system to the wall using the supplied clamps. Various connection methods can be used to connect the water
source to the system, however union type connectors are recommended. The use of a flow restrictor device (included with
the system) is strongly recommended when installing your system in order to maintain the manufacturers rated flow rate.
The flow restrictor should be installed on the outlet port and is designed to be installed in one direction only. Ensure that the
flow of the water matches the flow direction as indicated on the flow restrictor (Figure 1C). DO NOT SOLDER CONNECTIONS
WHILE ATTACHED TO THE SYSTEM AS THIS COULD DAMAGE THE O-RING SEALS. Mount the countdown assembly to the UV
chamber and tighten the metal clamp.
4. Mount the controller on the wall, near the reactor chamber. Ideally place the controller above the reactor and away
from any water connection point, to prevent any water from potentially leaking onto the controller by means of a leak
at a connection point or a ‘sweating’ system. Make sure you allow for a ‘drip-loop’ (Figure 1D) on the lamp, and power
cord (prevents water from potentially entering the controller).
5 Install the UV lamp and sleeve as outlined on pages 8-9.
6. When all plumbing connections are made, slowly turn on the water supply and check for leaks. The most likely cause for
leaks is from the o-ring seal. In case of a leak, shut water off, drain cell, remove the retaining nut, wipe the o-ring and
threads clean and re-install.
7. Once it is determined that there are no leaks, plug the system into the ground fault interrupter circuit, and check control-
ler to ensure the system is operating properly. The controller is designed to detect both power to the system and lamp
illumination. Reset the countdown timer to 365 days. It is important to NEVER LOOK DIRECTLY AT THE GLOWING UV LAMP.
8. Allow the water to run through the chamber for 5-10 minutes prior to use to clear any air or dust that may be in the
reactor.
PLEASE NOTE: When there is no flow, the water in the cell will become warm, as the UV lamp is always on. To remedy this, run
a cold water tap anywhere in the house for a minute to flush out the warm water.
Correct Installation Incorrect Installation
IMPORTANT: For vertical installation, the inlet is at the bottom and the outlet is near the top of the disinfection chamber. For
horizontal installation, pay careful attention to the diagram for flow direction.