Dometic SPOTZERO SZIII 2000, User Manual & Installation Manual

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Feed from Dock
PRE-FILTRATION
The SZIII is supplied with a 10 sediment pre-filter (Part #:
252404005) that filters out most contaminants over 1 micron, and a GAC/KDF prefilter that
removes chlorine, chloramine, VOCs and heavy metals (Part #: 252404004). An additional commercial-
grade filter configuration is optional with a single
20 commercial prefilter (Part #: 252404301).
The standard short filters act in the same manner as the
allow for more mounting options.
Prefilters should be changed every 100 hours and/or whenever there is a pressure difference of
15 psi or more between the pressure readings before and after the filter. It is imperative that the
prefilters are always installed when operating the unit as the pump used in this system is susceptible to
damage from sediment debris. In addition, if the prefilter becomes clogged and the water flow to the
pump is reduced or interrupted, cavitation will occur and damage the pump.
A Spot Zero system must be operated on filtered water only. Make sure to read all labels and
instructions on the filters before installation and use.
Pre-Filtration Plumbing
Plumb the feed water from the dock into the pre-filter inlet fitting using a customer supplied 1
NPT connection. From the prefilter outlet fitting run white nylon 1/2" Spot Zero tubing to the feed from
pre-filtration fitting.
CAUTION
A traditional carbon block filter must not be used as it will not remove chloramines and will cause
permanent membrane damage.
WARNING
SPOT ZERO SYSTEMS REQUIRE THAT THE SEDIMENT AND KDF/GAC
PREFILTERS ARE INSTALLED WHILE OPERATING. RUNNING THE UNIT
WITHOUT THE FILTERS WILL CAUSE DAMAGE TO THE PUMP AND WILL FOUL
THE MEMBRANES.
CAUTION
Filter Cartridges must be flushed before installing into the system. See page 32 under the initial
startup section to see how to properly flush the prefilters.
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