1515
1515
15
1515
1515
15
GBGB
GBGB
GB
Location of blending valve (
VV
VV
V).
Close the blending valve in a clockwise direction
and then increase the hardness of the blended
water by gradually opening it (expanding arrow).
To check run off > 500 l/h water at the nearest
cold water tapping point, check the hardness of
the blended water (residual hardness) using the
AQUATEST hardness tester, and adjust it at the
blending valve (
VV
VV
V) until the desired level has been
reached.
(In Austria a residual hardness of > 8.4 °dH is
prescribed).
The Drinking Water Directive prescribes aThe Drinking Water Directive prescribes a
The Drinking Water Directive prescribes aThe Drinking Water Directive prescribes a
The Drinking Water Directive prescribes a
threshold value of 200 mg/l for sodium. Thethreshold value of 200 mg/l for sodium. The
threshold value of 200 mg/l for sodium. Thethreshold value of 200 mg/l for sodium. The
threshold value of 200 mg/l for sodium. The
threshold value has been set so low in orderthreshold value has been set so low in order
threshold value has been set so low in orderthreshold value has been set so low in order
threshold value has been set so low in order
to enable the water to be used for drinkingto enable the water to be used for drinking
to enable the water to be used for drinkingto enable the water to be used for drinking
to enable the water to be used for drinking
and cooking purposes by people on a low-and cooking purposes by people on a low-
and cooking purposes by people on a low-and cooking purposes by people on a low-
and cooking purposes by people on a low-
sodium diet.sodium diet.
sodium diet.sodium diet.
sodium diet.
Sodium content of partially softened waterSodium content of partially softened water
Sodium content of partially softened waterSodium content of partially softened water
Sodium content of partially softened water
A reduction of the drinking water hardness by 1
°dH causes a rise in the sodium content of 8.2
mg/l.
(Drinking water hardness – blended water
hardness) x 8.2 mg/l = Raising the sodium content.
Check once again that all pipe connectionsCheck once again that all pipe connections
Check once again that all pipe connectionsCheck once again that all pipe connections
Check once again that all pipe connections
are watertight.are watertight.
are watertight.are watertight.
are watertight.
Commissioning has been completedCommissioning has been completed
Commissioning has been completedCommissioning has been completed
Commissioning has been completed
The unit is ready for use.
Handover of unit to operator:Handover of unit to operator:
Handover of unit to operator:Handover of unit to operator:
Handover of unit to operator:
In the event of a delay between installation/
commissioning and handover to the operator a
manual regeneration of both exchanger columns
in succession must be carried out.
The operator must be informed about the
functioning, operation and control of the unit. Hand
over installation and operating instructions to the
operator.
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