Dimplex LA 1118CP Montage- Und Gebrauchsanweisungen Seite 68

English
Evaluation characteristic
Bicarbonate (HCO )
3
2
Sulphate (SO )
4
Hydrogen carbonate
2
HCO - / SO -
3 4
Electrical conductivity
pH value
+
Ammonium (NH )
4
-
Chloride ions (Cl )
Chlorine (Cl )
2
Hydrogen sulphide (H S)
2
Carbon dioxide (CO )
2
Nitrate (NO )
3
Iron (Fe)
Aluminium (Al)
Manganese (Mn)
Saturation Index
Fig. 7.7:Limit values for the quality of heating water
Resistance of copper-soldered or welded stainless-steel plate
heat exchangers to the substances present in water:
Notes
"+" = Normally good resistance

 "o" = Corrosion problems may arise,particularly if several
factors receive an evaluation of "o"
"-" = Should not be used

NOTE
The water quality should be checked again after 4 to 6 weeks,
as the quality could change during the first few weeks of
operation due to chemical reactions.
EN-18
Stain-
Concentration les
range s Copper
(mg/l or ppm) ste
el
< 70 +
70 - 300 +
> 300 +
< 70 +
70 - 300 +
> 300 o
> 1.0 +
< 1.0 +
< 10 µS/cm +
10 - 500 µS/cm +
> 500 µS/cm +
< 6.0 o
6.0 - 7.5 o/+
7.5 - 9.0 +
> 9.0 +
< 2 +
2 - 200 +
> 200 +
< 150 +
> 150 o
< 0.5 +
1 - 5 +
> 5 o/+
< 0.05 +
> 0.05 +
< 5 +
5 - 20 +
> 20 +
< 100 +
> 100 +
< 0.2 +
> 0.2 +
< 0.2 +
> 0.2 +
< 0.1 +
> 0.1 +
> -0.2 +
< 0.2 +
452171.66.01-EN · FD 0212
Important!
The notes/settings in the instructions of the heat pump man-
ager must always be observed and carried out accordingly; not
doing so will lead to malfunctions. The maximum water outlet
temperature must not exceed 65°C and must be secured on
o
the system side so that, if the temperature is exceeded, all addi-
+
tional heat sources are switched off safely.
o/+
Minimum and maximum heating water flow rate
+
The minimum heating water flow rate through the heat pump
o/-
must be assured in all operating statuses of the heating system.
-
For example, this can be accomplished by installing a dual dif-
+
ferential pressureless manifold.
o/-
The maximum flow rate must not be exceeded.
o
The specified nominal flow rate (Chap. 13 on page 26) must be
+
assured in all operating states. A built-in flow rate sensor moni-
o
tors the necessary minimum flow rate.
o
Frost protection
o
On heat pump systems where protection from frost cannot be
+
guaranteed, there must be an option for draining the system
o
(see figure). The frost protection function of the heat pump
+
manager is active whenever the heat pump manager and the
o
heat circulating pump are ready for operation. The system must
be drained if the heat pump is taken out of service or in the
-
event of a power failure.
+
o/+
+
o
o/-
+
o/-
+
o
-
+
1
o
2
+
o
+
o
+
o
+
+
LA 1118CP
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