Control Of Hardness Of Water Treated By The Water Softener - Viessmann AQUAHOME 20-N Installation And Operation Manual

water surface and creates an empty
space between water and salt and
preventing their contact, hence salt
will not dissolve in water to make
brine. As a result the resin will not
regenerate. If the brine tank is full of
salt, it is difficult to determine if a salt
bridge was created. Loose, normal -
looking salt may be on top, but for
example half way to the bottom of
the brine tank an empty space may
occur. In order to determine whether
or not a salt bridge was created,
proceed as follows: use a stick (such
as broom handle) and insert it into
the device (see figure no. 7). Mark a
reference point on the broom
handle, 3 - 5 cm below the edge of
Description in English: Press of pond the salt bridge with the broom stick to break salt bridge, marking of brine level, broom
stick, salt, salt bridge, water
C. Control of hardness of water treated by the water softener
More frequent control of hardness of
treated (softened) water (once every day)
is required in the initial period of operation
of the water softener (during the initial 10
days). The water hardness number
depends on the setting of the mixing valve.
For households the water hardness
number should be set in the range
between 3 and 6, according to the German
water hardness scale.
Following that initial period, the water
hardness parameter should be checked
one every fortnight. Enter the results of
water hardness measurement to the
operation log book (see page 26). The
instruction on performance of water
hardness measurement is provided by
relevant water hardness tests (available at
the supplier or manufacturer of the water
softener).
25
the brine tank. Then push the broom
handle down into the brine tank to its
bottom. If stronger resistance can be
felt on the broom handle before it
strikes the tank bottom, it will be most
likely a salt bridge. Push the broom
handle into the salt bridge in a
number of spots this way breaking the
bridge. Never break the salt bridge by
pounding on the walls of the brine
tank. It may damage the tank.
If the use of wrong kind of salt
resulted in the salt bridge, remove it
from the brine tank, then carefully
rinse the tank and refill it with salt of
appropriate quality.
Figure
7