Horizon Reverse Osmosis Seafari Versatile Series, Owner'S Manual

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Seafari Versatile 450 - 1800
Page 7-2
7
Product Water Flow Meter reading is either
normal or low:
-
High Pressure Pump has a problem within
the manifold
- Worn Seals are allowing internal
bypassing
- Broken or stuck valve or valve spring or
debris in the valve chamber is allowing
internal bypassing
d) Product water flow meter registers flow and
the Salinity Meter Red LED is illuminated:
R.O. Membrane Vessel Assembly is bypassing
Feed Water into the Product Water.
The R.O. Membrane Element has a cracked
product water tube.
Solution : A cracked product water tube is
caused by a blockage in the Product Water
line. Ensure that there are no blockages, valves
or kinks in this line.
The End Cap Product Water O-Ring is
cut or worn.
Solution:
A worn product water O-Ring allows
Feed Water to enter the Product Water.
5) Flow Meter Readings:
In diagnosing flow meter readings always correlate
the reading with both the Brine Discharge Flow
Meter reading and the Product Water Flow Meter
reading. Consider the Pressure Gauge readings
as well. Prior to diagnosing flow meter readings,
always check first to ensure that the pressure gauge
readings are normal. The symptoms and causes
listed below assume that all pressure gauge readings
are normal.
a) Brine Discharge Water Flow Meter: At zero
system pressure, the Brine Discharge Flow
Meter registers the Feed Water flow through
the system. With High Pressure applied, the
Brine Discharge Flow Meter registers the Brine
discharge flow, which is feed flow minus the
product water being produced.
The High Pressure Pump is a positive
displacement pump. It pumps a fixed amount
of water unless there is a problem with the
High Pressure Pump itself. Therefore, a drop
from normal reading on the Brine Discharge
Flow Meter indicates the High Pressure Pump
is not functioning properly.
voltage fluctuation caused by other auxiliary
equipment pulling current exceeding the
permissible load on the Power Source.
There is a loose wire from the Power Source
to the System or within the System Electronic
Controller, which is intermittently opening the
power to the System.
3) Vacuum / Low pressure gauge readings:
The System is equipped with one or more Low
Pressure Gauges depending upon which Pre-
filtration equipment is installed. Always correlate
each of these Low Pressure Gauges to determine
which Pre-filtration component is dirty and
requires maintenance. The inlet pressure minus the
outlet pressure of any component is known as the
differential pressure.
Solution
: The pressure gauges used through
the System contain a small orifice at the
pressure port stem. This orifice can become
plugged up with debris or corrosion. If the
gauge fails to register then clean the pressure
pick up orifice with a thin stiff wire or small
drill bit. Use caution when inserting the
cleaning wire or drill bit into the orifice.
4) High Pressure Gauge Reading:
Use caution in diagnosing the reading of the High
Pressure Gauge. If the gauge is reading low it may
simply be that the Back Pressure Regulator requires
adjustment. However, there may be a problem with
the High Pressure Pump or the High Pressure Pump
Electric Motor, Back Pressure Regulator Valve, the
High Pressure Gauge, or the R.O. Membrane. A
high, full load, amperage draw at the High Pressure
Pump Electric Motor indicates that the High Pressure
Pump is applying pressure within the System.
a) High Pressure Gauge reading is low with
normal Brine Discharge Flow Meter reading
and low or no product water flow meter
reading:
Solution
: Back Pressure Regulator requires
adjustment to normal System operating
pressure.
b) High Pressure Gauge reading is low with
normal Brine Discharge Flow Meter reading
and normal product water flow meter reading:
Solution
: Dirty orifice in the High Pressure
Gauge pressure port requires cleaning.
c) High Pressure Gauge reading is low, Brine
Discharge Flow Meter reading is low, and