Horizon Reverse Osmosis Seafari Versatile Series, Owner'S Manual

Page: 76 / 209

Seafari Versatile 450 - 1800
Page 6-4
6
6.2 SHUT DOWN PROCEDURE
6.2.1 SHUTDOWN CAUTIONS
Prior to system shutdown, it is strongly
recommended that the operator observe
and compare the performance of the
Horizon Seafari system with the normal
operation specifications listed in Section
2.3 and Initial New System Readings from
Section 5, pg. 5-6 / 5-7 of this manual.
By checking the system performance
prior to shutdown, any deviations
from normal operation are identified
and corrected prior to the next use of
the system. This ensures a properly
functioning system when it’s needed. If
an observed problem is easily defined
as a minor one, which does not affect
other system components, wait until the
product water storage tank(s) is (are) full
before shutdown.
CAUTION: High Temperature Condition
The Pre-filtration Subsystem, High
Pressure Pump and/or R.O. Membrane
Elements may have been mounted in a
location that is subject to excessive heat.
As an example, overheating may occur
when the components are mounted in
a vessel’s engine compartment, or in an
unventilated building. The transfer of
atmospheric heat could raise the standing
water temperature in the components
above 122° F/50 C. At or above this high
temperature, pressurized hot water could
cause irreversible damage to the HRO
R.O. Membrane Elements. Therefore, the
Back Pressure Regulator Valve [33] must
be opened at the time of shutdown. This
ensures that, at the next start-up, new
water may enter and cool the system
while it is un-pressurized.
6.2.2 SHUTDOWN SEQUENCE
1. Open the Back Pressure Regulator Valve [33]
fully.
2. Momentarily depress the “Stop” switch on the
System’s front panel Touch Pad.
Check to make sure that both the Booster
Pump and the High Pressure Pump have
stopped rotating.
3. Close the Inlet Sea Cock Valve [2]. This is a
safeguard for vessel installations.
4. If installed, the Fresh Water Flush (FWF)
system is initiated when the “Stop” switch
is pressed. The fresh water flush lasts for 10
minutes. After 10 minutes, the fresh water
flush stops but remains in FWF mode. In this
mode, the fresh water flush repeats the ten-
minute rinse every 7 days. To continue the
7-day cycle, do not proceed to Step 5.
5. Press the “Stop” switch to cancel the Fresh
Water Flush mode.
6. Turn off the electrical power source (circuit
breaker) to the system. This eliminates the
chance of inadvertently starting the system.
7. Refer to Section 8, “Storage & Cleaning
Procedure” in this manual.