Horizon Reverse Osmosis Seafari Versatile Series, Руководство пользователя

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Seafari Versatile 450 - 1800
Page 3-1
3
3 PRE-INSTALLATION NOTES
3.1 COMPONENT DESCRIPTIONS
All components supplied by HRO, both standard
and optional, are described below along with items
required or desired by the installer. The ID numbers
used correspond to the System Schematic numbers
from page 3 - 2.
** Denotes items supplied by installer
*** Denotes optional equipment.
3.1.1 PRE-FILTRATION SUBSYSTEM
This section of the system pre-treats and delivers the
Feed Water into the System. The Feed Water may be
collected directly from the source, from a well, or
through a ship’s Sea Chest / Inlet Thru Hull Fitting.
The raw feed water is filtered to remove suspended
solids larger than 5 Micron size (5/1,000,000 of a
meter). The pre-filtration protects the HRO Systems
Membrane Element from undue fouling.
A plugged Pre-Filtration Subsystem causes
cavitation damage to the High Pressure Pump.
Always ensure that the Pre-Filtration Subsystem is
clear and monitor it frequently.
1.
Inlet Thru Hull Fitting with Forward Facing
Scoop
** is the point at which the feed
water enters the system. It is the installer’s
responsibility to arrange for and configure
this feed water pick up point. If the pick up
point is a thru hull fitting on a boat it must
be a forward facing scoop well below water
level. If the pick up is from a sea chest it must
be connected at a low point in the sea chest or
stand up pipe so that no air enters the system.
2. Sea Cock Valve ** is used in a ship installation
for safety reasons to close the feed water
line during non use of the Horizon Seafari
System. In some installations this valve may
be complemented with a check valve in order
to maintain prime in the feed water line.
3. Sea Strainer has a clear bowl with nylon
body filter housing or optional bronze body
containing a cleanable monel fine mesh filter
screen. The Sea Strainer filters out large
particulate matter and suspended particles that
would otherwise damage the Booster Pump.
4.
Rinse/Clean Inlet Valve
(optional) is used to
change the system from an operational mode
to a rinse, storage or cleaning mode. This
valve directs water into the Booster Pump
from either the raw water feed line or the
Rinse/Clean Tank.
5.
Booster Pump
supplies a positive pressure
to the Pre-filters, and through to the
High Pressure Pump. The Horizon Seafari
utilizes a pump with a performance curve of
80 Ft Head (35 psi) at 4.2 GPM. The resulting
pressure at the High Pressure Pump depends
on the final configuration.
6.
Plankton Filter
*** This filter assembly
contains a cleanable ultra fine monel mesh
screen. The mesh screen removes suspended
solids or biological growth such as plankton
and provides longer life to the Pre-filter
Elements and in turn provide lower system
maintenance costs.
7. Multi Media Filter *** contains a media filter
bed (gravel and sand). The media traps
suspended solids larger than 30 micron. The
Multi Media Filter is back washable.
8.
Low Pressure Gauge, Booster Pump Outlet
/ Multi Media Filter Inlet
*** displays the
Inlet Pressure to the Multi Media Filter. In
correlation with Low Pressure Gauge [9] the
operator can easily view the condition of the
Multi Media Filter and determine when back
washing is necessary.
9.
Low Pressure Gauge, Multi Media Filter
Outlet / Cartridge Pre-Filter Inlet
*** displays
the Outlet Pressure of the Multi Media Filter
across the filter bed. In correlation with Low
Pressure Gauge [7] the operator can easily view
the pressure differential across the media and
determine when back washing is necessary.
10.
Multi Media Filter Waste Connection
*** is the
waste line connection to the Multi Media Filter
Thru Hull Discharge Fitting.
11.
Multi Media Filter Thru Hull Discharge Fitting
** must be provided for discharge of the Multi
Media Discharge Water.
12.
Standard 25 to 5 micron Pre-Filters
consists
of two filter housings connected in series
with each other. The filter elements remove
suspended solids from the System Feed Water.
The first Pre-filter contains a filter element,
which filters the feed water to 25 micron. The
second Pre-filter contains a finer element,
which filters the feed water to 5 micron.
13.
Future reference