Davey UV40-20/UV75-25/UV130-40 Steriflo Ultra Violet Water Treatment Systems - Manual (Page 6)

6
Electrical Power Surge Protection continued...
If the installation is subject to electrical power surges or lightning we strongly
recommend the use of suitable additional surge protection devices on ALL
electrical equipment.
Davey also recommend the use of an RCD or earth leakage circuit breaker on
the power supply to your unit.
Pipe Connections
For best performance use copper, stainless steel, galvanised or polythene pipes at
least the same diameter as the inlet and outlet connections. Never use PVC pipe
directly connected to unit. PVC pipe and fittings can be used after 90
o bends of a
suitable material are connected to the inlet and outlet of the chamber. Larger
diameter pipe may be used to minimise resistance to flow, but maximum flow rates
should not be exceeded, as correct water treatment cannot be assured at higher
flows. If flows may exceed the design maximum, install a flow restriction device.
Use unions at pipe connections to enable easy removal and servicing. Use
sufficient tape to ensure airtight seal and do not over tighten. To prevent strain on
unit threads always support heavy inlet and outlet pipes. If there is a likelihood the
water supply may contain sediment or solid particles such as pieces of plant or
vegetable matter, a filter should be installed before the Steriflo
® .
Pre-treatment (drinking water)
Prefiltration is usually required to ensure that particulate matter does not shield
micro-organisms from the UV light. Sand filtration or 20 micron cartridge filtration
is the usual minimum. In some cases, particularly with surface water, finer filtration
may be necessary, or if cysts like Giardia or Cryptosporidium may be present. In
this case 1 micron filtration is required, not necessarily for the whole supply,
filtration for the drinking tap only may be practical.
Do not use pipe thread sealing compounds (especially hemp) on
any part of this unit. ONLY use Teflon sealing tape.
NOTE: Prior to installation remove the red transport plugs from the
inlet, outlet and lamp end cap.
DO NOT DISASSEMBLE ANY COMPONENTS UNTIL YOU HAVE
FULLY READ THESE INSTRUCTIONS!
Ultra violet radiation is harmful to skin & eyes.
DO NOT LOOK AT UV LAMP WHILE LAMP IS OPERATING.
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Lamp Installation
Once the Steriflo ® Treatment Chamber has been connected to the pipework, the
installation should be checked for water leaks.
Attach the “DO NOT LOOK AT LAMP” sticker in an obvious position on the
treatment chamber, check that the chamber is clean to ensure the sticker will
adhere correctly.
The Quartz Sleeve is pre-installed in the treatment chamber, and provided the
endcaps have not been disturbed or undone, is able to withstand well in excess of
the maximum operating pressures.
If the chamber test is successful, it is now time to insert the lamp. DO NOT
INSERT THREE PIN POWER PLUG TO POWER OUTLET YET!
Expose the connection end of the lamp from its transport tube and protective
wrapping. The lamp connection socket is “keyed” to ensure correct alignment.
Carefully remove the tube fully from its transport tube, touching the lamp as little as
possible. Handle the lamp by the ends where possible. Wipe with clean cloth and
methylated spirits if fingerprints or dirt need removing.
Slide the lamp into the chamber, fit lamp connection socket and then fasten the
end washer into the endcap, with the screws provided.
Operation
Once all leak testing and lamp fitment has been completed, open valves and allow
water to fill the chamber. Connect three pin plug to outlet and switch on. The
“Mains On” Amber LED will be illuminated. For the UV130-40 MkII, the red alarm
light will flash slowly as well.
Allow two minutes for the UV lamp to reach full intensity before starting water flow.
Full lamp performance for a new installation will be achieved in 24 hours. On a
new installation where no other form of sterilisation has been in constant usage we
recommend chemically dosing your rainwater tank with Acquasafe for the first
month. Acquasafe is tasteless and is suitable for use in drinking water.
Alternatively you can use a Chlorine flush of the plumbing downstream of the
Steriflo
® system. Use a 20mg per litre dose and leave the chlorine dose in the
plumbing at least for an hour, and preferably overnight.
Davey Water Products Pty Ltd can not accept responsibility for loss or
damage resulting from incorrect or unauthorised installations.
Abrasive Materials - The passage of abrasive materials will cause
damage to the Steriflo
® system and affect the integrity of the water
treatment which will then not be covered by the guarantee.