5 Before installation
5.1
Regulations governing installation
Warning
The heat pump must be installed by a qualified installer in accord
ance with local and national regulations.
Warning
The components used for the connection to the cold water supply
must comply with the prevailing standards and regulations in the
country concerned.
5.2
Installation requirements
5.2.1
Treatment of the heating water
In many cases, the heat pump and the heating system can be filled with
mains water, without treating the water.
Caution
Do not add any chemical products to the heating water without
first consulting a water treatment specialist. For example: anti
freeze, water softeners, products to increase or reduce the pH val
ue, chemical additives and/or inhibitors. These may cause faults in
the heat pump and damage the heat exchanger.
Important
Flush the installation with at least 3 times the volume of water
contained in the heating system.
Flush the DHW circuit with at least 20 times its volume of water.
The water in the installation must comply with following characteristics:
Tab.15 Heating water specifications
Specifications
Unit
Total system output
≤ 70 kW
Hydrogen potential (pH)
7.5 - 9
Conductivity at 25°C
μS/cm
10 to 500
Chlorides
mg/litre
≤ 50
Other components
mg/litre
< 1
Total water hardness
°f
7 - 15
°dH
4 - 8.5
mmol/l
0.7 - 1.5
Important
If water treatment proves necessary, Baxi recommends the follow
ing manufacturers:
Cillit
Climalife
Fernox
Permo
Sentinel
5 Before installation
28
AWHP-2 iMPI
7685645 - v04 - 07032018
