Runxin N74Q1 User manual

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Multi-functional Flow Control Valve for
Water Treatment Systems
65510 (Old Model No.: N74Q1)
65610 (Old Model No.: N74Q3)
55510 (Old Model No.: N75Q1)
55610 (Old Model No.: N75Q3)
1. Basic Setting & Usage
1.1 The Function of PC Board
A. Button lock indicator
When the fourth decimal point of digital tube turns on, it indicates the
buttons are locked. At this moment any single button will not work (No
operation in one minute, the fourth decimal point of the digital tube will light
on and lock the buttons.)
Solution: Press and hold both and for 5 seconds until the decimal
point lights off.

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B. Time of day indicator
When“:”flashes, it indicates the time of day.
C. Program mode indicator
The third decimal point of digital tube turns on, it indicates the program
display mode. Use or to view all values.
The third decimal point of digital tube flashes, it indicates the program set
mode. Use or to adjust all values.
D. Menu/Confirm button
Press to enter program display mode, the third decimal point of digital
tube turns on.
In program display mode, press to enter program set mode.
Parameters to be set will flash.
Press after all program are set successfully, and return to program
display mode.
E. Manual/Return button
In program display mode, press , it can proceed to next step.(Example:
press in service status, it will start regeneration cycles / washing
status instantly if the outlet water is unqualified; Press while it is in
regeneration / washing status, it will end regeneration/washing in
advance and go to the next status at once.)
F. Down and Up
In program display mode, press or to view all values.
In program set mode, press or to adjust values.
Press and hold both and for 5 seconds to unlock the buttons
In program set mode, press to return to program display mode; in
program display mode, press to return to menu mode.
Press while adjusting the values, then it will return to program display
mode directly without saving values. Press , it will save the values and
return to program display mode.
2. The Steps of Parameter Setting (Take N74Q3 A-01 as an
example)
Item
Process Steps
Symbol
Time of Day
1.In Time of Day display status, press to enter
program set mode, both hour value and ":" flash, press
and to adjust the hour value.
2. Press , minute value and ":" flash, press or
adjust the minute value.

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3. Press to finish adjustment, press to return.
Regeneration
Time
1. Under the Regeneration Time display status, press to
enter into program set mode. Regeneration hour value
flashes, press or to adjust the hour value.
2.Press again, regeneration minute value flashes, press
or to adjust the minute value.
3. Press to finish adjustment, press to return.
Control Mode
1. Under the Control Mode display status, Press to
enter into program set mode.
Control mode A-01 flashes, press or to adjust the
working mode.
2. Press to finish adjustment, press to return.
Water
Treatment
Capacity
1. Under the Water Treatment Capacity display status,
Press enter into program set mode. Water treatment
capacity integer value flashes, press or to adjust
the value.
2.Press again, water treatment capacity decimal value
flashes, press or to adjust the decimal value.
3. Press to finish adjustment, press to return.
Backwash Time
1. Under the Backwash Time display status, Press
enter into program set mode. Backwash time value flashes,
press or to adjust the value.
2. Press to finish adjustment, press to return.
Brine & Slow
Rinse Time
1. Under the Brine& Slow Rinse Time display status, Press
enter into program set mode. Brine & slow rinse time
value flashes, press or to adjust the value.
2. Press to finish adjustment, press to return.
Brine Refill
Time
1. Under the Brine Refill Time display status, Press
enter into program set mode. Brine refill time value flashes,
press or to adjust the value.
2. Press to finish adjustment, press to return.
Fast Rinse
Time
1. Under the Fast Rinse Time display status, Press
enter into program set mode. Fast rinse time value flashes,
press or to adjust the value.
2. Press to finish adjustment, press to return.
Maximum
Interval
Regeneration
Days
1. Under the Maximum Interval Regeneration Days display
status, Press enter into program set mode. Maximum
interval regeneration days value flashes, press or
to adjust the value.

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2. Press to finish adjustment, press to return.
Signal Output
Mode
1. Under the Signal Output Mode display status, Press
enter into program set mode. Signal output mode value
flashes, press or to adjust the value.
2. Press to finish adjustment, press to return.
For example, a softener has set fast rinse time as 12 minutes. After
regenerating, the chloridion in the outlet water is always higher than normal,
which indicate that fast rinse time is too short. If you want to set the time as
15 minutes, the modification steps as follows:
①Press and hold both and to unlock the button (The fourth
decimal point of digital tube lights off);
②Press , the third decimal point of digital tube lights on;
③Press or continuously until in fast rinse status, the digital
display area shows: 5-12M
④Press , 12 flashes
⑤Press the continuously, until 12 changesto 15
⑥Press again and hear a sound "Di", the frame stop flickering, the
program returns to inquiry status;
⑦If you want to adjust other parameters, you need to adjust as above
3-5 steps; if not, press to exit the program inquiry status and the screen
displays the current working status.