Hydraulic Safety; Recommendations For Operation; Specific Instructions For Service, Maintenance And Breakdowns - DeDietrich ALEZIO S V200 User Manual

1 Safety instructions and recommendations
1.6

Hydraulic safety

1.7

Recommendations for operation

1.8

Specific instructions for service, maintenance and breakdowns

8 MIV-S V200
The hydraulic installation must be capable of handling a minimum flow rate
at all times.
Heating water and domestic water must not come into contact with each
other. Domestic water must not circulate through the exchanger.
Limit temperature at the draw-off point: the maximum domestic hot water
temperature at the draw-off point is subject to special regulations in the
various countries in which the appliance is sold in order to protect the
user. These special regulations be observed when installing the appliance.
Take precautions with the domestic hot water. Depending on the heat
pump settings, the domestic hot water temperature may exceed 65°C.
In order to limit the risk of being scalded, a thermostatic mixing valve must
be installed on the domestic hot water flow pipes.
When making the hydraulic connection, it is imperative that the standards
and corresponding local directives be respected.
If radiators are connected directly to the heating circuit: install a differential
valve between the indoor unit and the heating circuit.
Fit drainage valves between the indoor unit and the heating circuit.
Do not add any chemical products to the heating water without first
consulting a water treatment specialist. For example: antifreeze, water
softeners, products to increase or reduce the pH value, chemical additives
and/or inhibitors. These may cause faults in the heat pump and damage
the heat exchanger.
The frost protection function does not work if the heat pump is switched
off.
If the home is unoccupied for a long period and there is a risk of frost,
drain the indoor unit and the heating system.
Keep the heat pump accessible at all times.
Never remove or cover the labels and data plates affixed to appliances.
Labels and data plates must be legible throughout the entire lifetime of the
appliance.
Immediately replace damaged or illegible instructions and warning
stickers.
Give preference to the OFF or frost protection mode rather than switching
off the system to leave the following functions running:
Anti blocking of pumps
Frost Protection
Regularly check the presence of water and pressure in the heating
system.
Do not touch radiators for long periods. Depending on the heat pump
settings, the temperature of the radiators may exceed 60°C.
Do not drain the installation, except in cases of absolute necessity. E.g.:
several months' absence with the risk of temperatures in the building
falling below freezing.
Maintenance work must be carried out by a qualified professional.
Only a qualified professional is authorised to set, correct or replace the
safety devices.
Before any work, switch off the power supply to the heat pump, the indoor
unit and the hydraulic/electrical back-up.
7748661 - v03 - 08062020