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

Page: 71 / 162

HRO
Systems
Horizon
Seafari
“Section H” Shutdown Procedure
Page H - 1
H. SHUTDOWN PROCEDURES:
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 “B” and Initial New
System Readings from the end of Section “F” 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.
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.
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 "J", "Storage & Cleaning
Procedure" in this manual.