The NELSEN WATER NRO ROC2HE-UL is a top-of-the-line reverse osmosis system designed for efficient water filtration. Ensure optimal performance by downloading the free user manual from our website. This comprehensive manual provides detailed instructions for installation and maintenance, making it easy to enjoy clean, purified water at home.
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Figure 2 - Controller Overview
Terminal Board (TB-1 Re-E)
CPU Board (CPU-4)
Conductivity Probe
Connections
Display
(4 line, 20 character)
Clear, concise feedback
on the RO’s status.
Alarm
Display backlight
flashes along with
audible beeper to
indicate alarm condition.
Keypad
System ON/OFF,
Up Arrow
Down Arrow
Manual Run,
Manual Flush
