4 Rinse the central heating installation with at least 3x
the volume of the central heating installation.
4 Flush the DHW pipes with at least 20 times the volume
of the pipes.
For an optimum functioning of the boiler, the water of the installation
must comply with following characteristics:
Output ≤ 70 kW
Acidity (pH)
7.5 - 9
Conductivity at 25°C µS/cm 10 to 500
Chlorides mg/l < 50
Other components mg/l < 1
Hardness of the water of the installation °f 7- 15
°dH 4- 8.5
If a water treatment is necessary, De Dietrich
Thermique recommends the following manufacturers:
4 Cillit
4 Climalife
4 Fernox
4 Permo
4 Sentinel
4.10.2. Filling the system
CAUTION
Do not use glycol.
The heat pump components are not designed to be used
with glycol.
The use of glycol in the heating circuit invalidates the
warranty.
4 Fill the installation until a pressure of 1.5 to 2 bars is reached.
Water pressure display: See chapter: ¼ "Reading out
measured values", page 88.
4 Check for any water leaks.
4 Completely vent the indoor module and the installation for
optimum functioning.
AWHP MIT-IN iSystem
4. Installation
24/09/2012 - 300027606-001-01
40
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