Publicité
8
3.5
If the RO system has permeate rinse enabled, install the necessary piping. If using service
interruption by external signal (microswitch), remove conductor connecting terminals 6 and 7
together on controller PCB. Then, run wire from microswitch inside the controller housing and
connect to the terminals. If using antiscalant or other RO chemicals, refer to dosing pump's
instruction booklet for information concerning the dosing pump.
3.6
Run power to the RO system. Pull power cable inside power cabinet of the RO system
through a gland in cabinet wall. Connect three phases and neutral to leftmost screw terminal block
in the bottom row. Switch on main circuit breaker in the top row. Check protection relay status. Any
LED signal except green light on indicates some power supply fault. Green LED indicates proper
power supply. See pictures of the electrical panel.
START UP THE SYSTEM AS FOLLOWS:
3.7
Ensure recycle and drain flow regulating valves are fully open before starting. Run the
permeate tube to drain for the duration of the first run of the RO system.
3.8
Switch on controller circuit breaker to start the RO system. After the controller starts up
and the unit starts to operate, tighten drain regulating valve until drain rotameter reading meets
specifications (see Table 1). Then, start turning down recycle regulating valve. This will raise
pressure in the membrane module shown on pressure gauge. Stop when permeate flow rate meets
specification or pressure in the membrane module reaches above upper limit (see Table 1). After
the proper operating pressure is set, readjust drain flow rate (if it deviates in the process) to ensure
that system operates with proper recovery (75% unless specified otherwise). To find out target
drain flow rate, perform below calculation:
Drain flow rate =
For example:
Permeate flow rate = 50 l/min = 3 m
Recovery = 75% = 0,75 (default)
Target drain flow rate = 50/0,75 - 50 = 16,67 l/min = 1 m
Make sure that the permeate flow rate and drain flow rate conform to your recovery calculation.
After you have finished setting up check that operating flow rates, rotameter and pressure gauge
readings stay within specification limitations in Tables 1 and 2.
Take care not to exceed 1,6 MPa in membrane module at any time. If membrane
pressure rises above the upper limit in specification, open recycle flow regulating valve
to bring it down.
Take care not to exceed proper recovery. If you are unsure what recovery your system
should be operated with, contact Ecosoft Product support for assistance.
Turn regulating valve knobs smoothly when regulating recycle and drain flow. Do not
make rapid turns or apply disproportionate force as this can damage the unit.
This manual is the intellectual property of Ecosoft. Copying and reprinting is prohibited. © 2017
INSTRUCTION MANUAL ECOSOFT RO SYSTEM MINI (MO-6500, MO-12000, MO-24000)
Permeate flow rate
Recovery
/h
3
- Permeate flow rate
3
/h
Publicité
