L.Tolstoi
2A, Sillamäe,
40231 Estonia
www.pro.aquaphor.com
International: +372 356 2204 21
Skype: aquaphor market.pro
e-mail: [email protected]
AQUAPHOR
PROFESSIONAL
WATER TREATMENT
If the degree of demineralization is reduced after changing or servicing the reverse
osmosis membranes, it is possible if the membranes are damaged or installed not
correctly.
7.6.3
This RO system has the function of low pressure protection. If the pressure of
the raw water or water after the pre-filtration are below the minimum operating
pressure, the RO system will stop.
7.6.4
Never close the regulator of concentrate and\or the pump valve completely.
This will lead to a sudden increase of pressure and damage to the RO system.
Also the system will be under high pressure, it is not safe for service staff
.
7.6.5
The conductivity meter installed on the purified water, allow you to see the
effectiveness of the RO system.
7.6.6
At the first start-up it is necessary to drain purified water to flush the RO system.
7.7
Maintenance operations at shutdown
7.7.1
Short shutdown (1 ~ 3 days)
When the ambient tempe
rature is 5 ~ 35 ° C, you can turn
off the system as a normal
shutdown. After turning the system on, the RO system should operate for at least 1 ~
2 hours
.
7.7.2
Long shutdown period (more than one week) will require the following steps:
7.7.2.1
Soak the membranes in a 1% solution of sodium bisulfite.
7.7.2.2
Soak the membranes in 0.5% formaldehyde solution (it is not recommended
to use this chemical for installations operating in the food and medical industries).
7.7.2.3
If the ambient temperature is below 0 ° C, it is necessary to
add antifreeze.
Sodium bisulfate 2%
Propylene glycol 40%
Clean water 58%
This solution passes through the RO system. Drain the liquid chemical agents in
conjunction with the flush water for 3 minutes. Stop the pump and close the RV-01,
RV-02 and RV-03 valves. This solution must be replaced after 2 months maximum. If
the shutdown period is more than 2 months, you must fill in a fresh solution.
7.8 Mode of operation
The unit has two modes
–
automatic and manual (CIP). Fully automatic operation is
operated by the RO controller, the water level sensor, the pressure sensor and the
TDS meter. In most cases the system is able to provide a continuous supply of water
automatically.
