Two documents cover the whole of an installation. The installation guide is the order of operations — where the unit goes on the line, how the joint is made, and what to check before it is energised. The feed-water limits are the conditions the unit depends on, which double as the conditions a warranty is assessed against. Neither is a recommendation that can be traded against cost: a unit working outside them is a unit whose outcome cannot be predicted from its specification.
An in-line unit is fitted into a system that already exists, which is why the guide starts with the system rather than with the box.
Isolate and depressurise, mark the cut-in point on the run after the tank, cut square, make the quick-connect joint, then check it under pressure before the unit is energised. The sequence matters more than the individual steps: the two common failures — a weeping joint and a unit that never triggers — both come from doing a later step early.
Turbidity, iron, hardness, pH, chlorine, temperature and pressure — the published limits, what each one does to the unit when it is exceeded, and why meeting them is part of what the warranty covers rather than advice alongside it. The limits apply where the water enters the unit, not at the wellhead.
This page describes the sequence in general terms. The binding procedure is the instruction manual supplied with the unit you receive — where the two differ, the manual is the document that applies. A copy can be issued ahead of an order on request.
A dose figure to work to
No UV dose in mJ/cm² is published, because a dose describes a product together with the conditions it was measured under. Sizing here is by the flow the unit is rated for at the position it is fitted.
A replacement interval in months
The lamp has a design rating and the sleeve fouls with water quality, so a calendar interval would be a guess presented as a schedule. What to base the interval on is set out in replacement and service.
A performance figure for the installation
The unit is one stage of a train. What the train achieves depends on the stages in front of it, so a number for this unit alone would describe a system that does not exist.
Send the line you are working on, the water test result if you have one, and where the unit will sit. Most installation questions are answered by those three.
Send an enquiry
Typical response within one business day.
This form is not yet connected to a mail service — the enquiry endpoint will be wired up at launch. Until then, write to sales@skweit.cn or through the contact page.