4.10 Filling The Heating System; Water Treatment In The Heating Circuit - DeDietrich AWHP 6 MR Installation And Service Manual

4. Installation

4.10 Filling the heating system

39
Primary pump
34
Safety thermostat
44
Disconnector
50
Thermostat valve
51
Differential valve
52
Domestic hot water circulation loop return
56
Domestic hot water outlet
57
Direct heating circuit
64
Heating circuit with mixing valve
65
Heat transfer fluid container
89
Thermostatic distribution valve for each zone
115
4.10.1.

Water treatment in the heating circuit

In a number of cases, the heat pump and the central heating system
can be filled with normal tap water and no water treatment is
necessary.
WARNING
Do not add chemical products to the central heating
4
water without first consulting a water treatment
professional. For example: antifreeze, water
softeners, products to increase or reduce the pH
value, chemical additives and/or inhibitors. Chemical
products may cause malfunctions on the heat pump
and damage the heat exchanger.
Do not use hydrochloric acid-based cleaning or
4
descaling products.
CAUTION
Check the compatibility of the product with the
4
materials used in the installation.
Check the compatibility of the product with stainless
4
steel and copper.
Respect the manufacturer's instructions (use, dose,
4
etc.) to obviate any hazards (corporal, material,
environmental).
An uncleaned installation or an installation using
4
water of unsuitable quality may bring about the
cancellation of the warranty.
AWHP MIT-IN iSystem
24/09/2012 - 300027606-001-01