Viessmann AQUAHOME 20-N Installation And Operation Manual page 11

Setting regeneration hour
 Single press of the SET button (in
 If this setting is confirmed (by
Brine -
well
Salt
level
Label
(sticker)
water hardness number by 1.
Pressing the ▲ button will
increase the displayed water
hardness number to the maximum
water hardness number for given
device. Between water hardness
numbers of 1 and 25, each
pressing of ▲ or ▼ buttons will
respectively increase or reduce
Set Water Hardness mode) will
move programming to the SET
RECHATHE TIME mode; the
value flashing on the display
screen should be 02:00 (2 a.m.)
as default value.
pressing the "SET" button), the
water softener will activate the
regeneration process at 2 a.m.
Due to water consumption
reduced to minimum at night, 2:00
a.m. is the optimum regeneration
hour.
Setting salt level
Single press of the SET button (in Set Regeneration
Hour mode) will move programming to the SET
SALT LEVEL mode. Control panel features the
system of salt level control in the brine tank. In order
to set the system of salt level control in the brine
tank proceed as follows:
 Open the brine tank cover for visual inspection
of the actual salt level.
 The salt level indicator, on the brinewell inside
the brine tank features the range between 0
and 8. Take note of the actual salt level.
Press ▲ or ▼ button to set the actual salt level. In
the example provided, the salt level is 4. LED
indicating low level of salt will light up when the salt
level is 2 or below. Prevent the salt level in the brine
tak to drop below that level.
 Important notice!
water hardness number by
increments of one unit. Between
water hardness numbers of 25
and the maximum water hardness
number, the increments are 5
units. If the button remains
pressed, the number will change
twice within one second.
 In order to change the
regeneration hour settings, press
the ▲ or ▼ buttons to set new
regeneration process start time. If
a twelve-hour clock is set, please
take note that the "ante meridiem"
("AM") part of the clock indicates
hours between 00
the "post meridiem" ("PM") part of
the clock indicates hour between
12
button will confirm the changes
introduced.

With each pressing of one of
the
increase or decrease with one unit
increments. If the button remains
pressed, the time will change by
two units within one second.
11
00
and 11
00 59
. Pressing the "SET"
and 23
▲ or ▼ buttons the time will
59
and