Runxin N74A3 User Manual

MODEL: N74A1-63510/N74A3-63610/N74B1-63510B/N74B3-63610B
3
which represent buttons are locked. Before operation press and hold the
“ ” and “ ” buttons for 5 seconds to unlock. This function can avoid
incorrect operation.
 It can choose time clock type or meter type by program selection.
Can realize interchange between time clock type by day or by hour
and meter type by dialing a switch on main control board. (Check figure on
P19) (Attention: After dialing the switch, it needs to reconnect the power.
The meter type product has one flow meter and flow meter cable, but the
time clock type doesn’t have.)
 Four kinds of meter type can be selected (Suite for F74A3, N74B3)
Mode
Name
Instruction
A-01
Meter
delayed
regeneration
Regenerate on the day although the available volume
of treated water drops to zero (0). Regeneration starts
at the regeneration time.
A-02
Meter
immediate
regeneration
Regenerate immediately when the available volume of
treated water drops to zero (0).
A-03
Intelligent
meter
delayed
regeneration
Meter delayed regeneration type, but by setting resin
volume, feed water hardness, regeneration factor, the
controller will calculate the system capacity.
A-04
Intelligent
meter
immediate
regeneration
Meter immediate regeneration type, but by setting
resin volume, feed water hardness, regeneration
factor, the controller will calculate the system capacity.
 Interlock Function
It has a function of interlock to realize only one valve in regeneration
but the other valves are in service while several valves parallel in system.
In multi-steps treatment systems such as RO pre-treatment, when several
valves are in series, there is only one valve in regeneration or washing to
ensure pass water all the times while different valves in regeneration or
washing. (Application refer to Figure 3-9)

Runxin N74A3 Specifications

General

Brand	Runxin
Model	N74A3
Category	Control Unit
Language	English