en
Menu no.
Parameter/
info
5.53
Threshold
rainwater /
rainwater
storage tank
5.54
Calcination
protection
5.55
Flushing
system
5.56
Flushing
duration
5.57
Maximum
running time
of a pump
5.59
Fault mes-
sage beha-
vior
5.61
Minimum
pressure
5.62
Delay dry run
protection
5.63
Duration of
dry run in
drinking wa-
ter mode
5.64
Duration of
dry run in
rainwater
mode
5.70
Maximum
pump cycles
per hour
46
Min.
Max.
Text
1
1000
0
7
1
31
1
9
0
360
Closes
Opens
0.7
1.0
1
180
1
180
1
180
1
60
Standard
Unit
Ac-
cess
level
<5.52>+10
cm
2
7
d
2
7
d
2
3
min.
2
0
min.
2
Opens
2
1.0
bar
2
15
s
2
20
s
2
30
s
2
35
1/h
2
NOTICE
The access level can be changed from level 1 (standard) to level 2 (para-
meter input) in menu 7.01. If not operated after 6 minutes have elapsed, it
is automatically reset to level 1. Level 3 is reserved for Wilo customer ser-
vice.
NOTICE
Regular flushing of the replenishment reservoir (operation in drinking wa-
ter mode) is mandatory and is ensured at least every 31 days for 1 minute
by a controller function ("5.55" & "5.56").
Installation and operating instructions • Wilo-RAIN3 • Ed.05/2024-02
Description
Threshold for fill level of rainwater storage
tank at which the system switches to the
RWM (for spacing, see menu 5.52).
5.22 < 5.52 < 5.53 < 5.51
Sets the time interval for briefly operating
the valve to maintain the function.
Setting the time period after which the
system automatically switches to drinking
water mode (TWM) to flush the replenish-
ment reservoir.
(Cleaning duration, see menu 5.56)
Total time period for TWM operation of
the pump. After this time, RWM operation
is possible again.
Pump is not to be operated for longer than
the period specified here, otherwise an
alarm will be triggered; 0 s means unlim-
ited running time and no alarm signal.
Zero or one signal in the event of a fault
Pressure threshold below which dry run-
ning is detected.
Delay in detecting a dry run. Prevents false
positive detection of dry run by a short im-
pulse at the input.
Time in TWM to build up the minimum
pressure
Time in RWM to build up the minimum
pressure
Alarm triggering if the pump starts more
frequently than this threshold value