Horizon Reverse Osmosis Seafari Versatile Series, Owner'S Manual

Page: 100 / 209

Seafari Versatile 450 - 1800
Page 8-4
8
8.2 SHORT-TERM SHUTDOWN
A short-term shutdown is defined as a period of
time in which the Horizon Seafari system is not
utilized for two to fourteen days. An efficient short-
term method of protecting the HRO system and
R.O. membrane element is to perform a “once
through” Fresh Water Rinse of the entire system
with fresh water (product water from the system).
This prolongs the system life by minimizing
electrolysis and retarding biological growth. Refer
to section 6.2.2, page 6-4 for complete explanation of
the Fresh Water Flush System.
One time through fresh water rinse procedure
:
(refer to Fig 8a - 8b, pg. 8-3)
Follow the directions below.
This procedure displaces the system feed water
with fresh water and allows a short-term shutdown
for up to two weeks. 10 to 20 gallons (38 to 75
liters) of fresh product or potable water is required
depending upon the Optional Pre-filtration included
with the system.
1. Close the Inlet Sea Cock Valve [2].
2. If not already connected, connect the RINSE/
CLEAN INLET line from the Rinse/Clean
Inlet Valve [4] to the pick up point of the
Rinse/Clean Tank [50].
3. Fill the Rinse/Clean Tank [50] full with
non-chlorinated product water. The cleaning
tank must contain enough product water to
sustain rinsing of the system until all of the
feed water is displaced. This process requires
approximately 10 to 20 gallons (38 to 75 liters).
NOTE: Winterizing and freezing
temperature storage - If the system is
exposed to freezing temperatures add
twenty percent (2 to 4 gallons / 8 to 15
liters) food grade glycerin (propylene
glycol) to the rinse water. This prevents
the water in the system from freezing.
4. Position the Rinse/Clean Inlet Valve [4] to the
Rinse/Clean Tank position.
5. Position the Rinse/Clean Outlet Valve [35]
to the Brine Discharge (normal operation)
position.
6. Fully open the Back Pressure Regulating Valve
[33].
7. Operate the system by pressing the
“Start” switch. The fresh water rinses the
entire Horizon Seafari system and discharges
out to waste.
8. Apply 200 psi of pressure to the System
by turning the Back Pressure Regulator
Clockwise. This allows the system to
produce a minimal amount of product water,
which ensures that the product water line
remains wet.
9. Just prior to depleting the rinse water from the
tank, stop the system.
10. Position the Rinse/Clean Inlet Valve [4] to the
Normal Operating Position towards the Sea
Strainer [3]. The system is now exposed to
fresh rinse water and may be left unattended
for up to two weeks. This procedure should be
repeated every two weeks if the system is not
in use.
NOTE : If the Horizon Seafari is
equipped with a Fresh Water Flush
system, the fresh water flush is a
substitute for the above procedure.
The Fresh Water Flush is timed and
repeats every seventh day unless the
“Stop” switch is pressed, or the power
supply is interrupted.
8.3 LONG TERM SHUTDOWN
A Long Term or Prolonged Shutdown is defined as
a period in which the HRO system is shut down for
longer than three months. For a such a shut down,
the system should first be rinsed with fresh water,
then stored with HRO SC System and Membrane
Element Storage Chemical. This chemical inhibits
bacterial growth while maintaining the high flux and
salt rejection of the HRO R.O. Membrane Element.
Follow the directions listed below.
The Long Term Shutdown procedure requires 20 - 40
gal. (75 - 150 liters) of potable water.
1. Backwash and rinse the Multi Media Filter,
if installed.
2. Close the Inlet Sea Cock Valve [2].
3. Replace all of the Pre-filtration Cartridges with
new HRO Pre-filtration Elements.
4. If not already connected, connect the RINSE/
CLEAN INLET line from the Rinse/Clean
Inlet Valve [4] to the pick up point of the
Rinse/Clean Tank [50].
5. Fill the Rinse/Clean Tank [50] full with
non-chlorinated product water. The cleaning
tank must contain enough product water to
displace all of the feed water. This requires
approximately 10 - 20 gallons (38 - 75 liters).