INSTALLATION | Appliance maintenance
18
www.ochsner.com | BIA-EUROPA Mini IWPL-EN11
»
Disconnect the cold water and DHW connection from
the DHW tank.
»
Connect the flushing valve to the DHW tank.
»
Descale the DHW tank.
»
Reconnect the cold water and DHW connection.
»
Fill the DHW tank.
13.3.1
Effect of water quality
Substances in
water
Concentra-
tion
(mg/l or ppm)
Time limits
for analysis after sam-
pling
Total hardness
(°dH)
4-14
No limit
HCO3-/SO4²-
>1.0
<1.0
+
-
No limit
Electrical conduc-
tivity
<10 µS/cm
10-500 µS/cm
>500 µS/cm
0
+
0
No limit
pH[2]
<7.0
7,0-9,0
>9.0
0
+
0
Within 24 h
Alkalinity (HCO3-)
<70
70-300
>300
0
+
0
Within 24 h
Sulphate [1]
(SO4²-)
<100
<200
>200
+
0
-
No limit
Ammonium (NH4+) <2
2-20
>20
+
0
-
Within 24 h
Chlorides (CI-)
<100
100-200
>200
+
0
-
No limit
Free chlorine (CI2) <1
1-5
>5
+
0
-
Within 5 h
Hydrogen sulphide
(H2S)
<0.05
>0.05
+
-
No limit
Free (aggressive)
Carbon dioxide
(CO2)
<5
5-20
>20
+
0
-
No limit
Nitrate [1] (NO3-)
<100
>100
+
0
No limit
Iron [3] (Fe)
<0.2
>0.2
+
0
No limit
Aluminium (Al)
<0.2
>0.2
+
0
No limit
Substances in
water
Concentra-
tion
(mg/l or ppm)
Time limits
for analysis after sam-
pling
Manganese [3]
(Mn)
<0.1
>0.1
+
0
No limit
1 Sulphates and nitrates act as inhibitors for pit-
ting corrosion caused by chlorides in pH-neutral
environments.
2 Generally speaking, a low pH value (below 6) increas-
es the risk of corrosion and a high pH value (above
7.5) reduces it.
3 Fe3+ and Mn4+ are powerful oxidising agents and
can increase the risk of localised corrosion in stain-
less steels. SiO2 above 150 ppm increases the risk of
scaling.
Explanation
»
[+] Good resistance under normal conditions.
»
[0] Corrosion may occur, particularly if other factors
are rated 0.
»
[-] We do not recommend use.
13.4 Customer service
Should your appliance develop faults despite the use of
quality components and care in its production, please con
-
tact OCHSNER customer service on the phone numbers
below.
►
Customer service hotline for Austria:
Tel.: +43 (0) 504245-499
Email: [email protected]
►
Customer service hotline for Germany:
Tel.: +49 (0) 69 256694-495
Email: [email protected]
►
Customer service hotline for Switzerland:
Tel.: +41 (0) 800 100 911
Email: [email protected]
The heat pump model and serial number are given on the
name plate. The name plate is attached to the upper right-
hand casing section of the heat pump.
13.5 Maintenance contract
OCHSNER offers a wide range of maintenance contracts.
You can find more information at www.ochsner.com.
Benefits of a maintenance contract
►
A correctly performed service not only helps to save
energy but also protects the environment.
