IONPURE
®
VNX CEDI Modules
Page 23 IP-MAN-VNX-1019-EN.pdf
6. MAINTENANCE AND TROUBLESHOOTING
The following section details the maintenance procedures for the VNX module. It contains
general maintenance information and specific maintenance information for cleaning and
sanitizing the modules.
The cleaning chemical volumes & flows detailed in this section are for a single VNX
module. Multiply chemical volumes by number of modules in system.
This section also lists possible problems and troubleshooting procedures for the VNX
module. All operators and personnel involved with the module should read and become
familiar with all maintenance and troubleshooting procedures.
6.1. General Maintenance Guidelines
6.1.1 Operating Data Log Sheet
VNX system log sheets must be filled out daily to provide early detection of problems that
could jeopardize the warranty and potentially damage the module. A typical log sheet is
included in Section 7. Because instrumentation may vary depending on the type of
system, this log sheet may not apply to your particular system. The system manual
should contain log sheets more appropriate for your system. However, the items in bold
must be filled out to maintain module warranty.
6.1.2 Periodic Maintenance
Perform the following tests at least once every six months.
· Check for any water leakage from the module. If leakage is observed, see the
Troubleshooting subsection for possible solutions.
· Periodically tighten all electrical connections
· Periodically check calibration of instrumentation
· Test function of critical interlocks such as low flow protection
6.2. Approved Cleaning Procedures
Periodically, the VNX module may need cleaning or sanitization. Cleaning the module
removes scale and resin/membrane foulants. The VNX modules can be cleaned and
sanitized with five (5) different solutions, depending on what needs to be removed:
· Hydrochloric acid (2%) – for removing scale and metal oxides.
· Sodium chloride/sodium hydroxide (5% brine/1% caustic) – for removing organic
foulants and biofilm.
To Next Page
Loading...
Need help?
General
