Horizon Reverse Osmosis Seafari Versatile SFC-1400-2, Owner'S Manual

Page: 24 / 162

HRO
Systems
Horizon
Seafari
“Section D” System Schematic with Component Identification & Descriptions
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
D - 2.
** Denotes items supplied by installer;
*** denotes optional equipment.
A. PREFILTRATION 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
nonuse 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
Page D - 1