Cadel IDRON 22 AIRTIGHT, Installation, Use And Maintenance Manual, Page: 26 / 56

26 AQUOS - IBIS - IDRON
EN
8.7 DOMESTIC HOT WATER PRODUCTION KIT (AQUOS 22 H2O / IBIS 22 H2O / IDRON 22 H2O
STOVES ONLY)
The AQUOS 22 H2O, IBIS 22 H2O and IDRON 22 H2O stoves are equipped with a complete kit for the production
of domestic water made up of:
• Plate heat exchanger
• A 3-way diverter valve
• Flow switch
• Pipes and fittings for connection
The kit comes preassembled by the manufacturer and it is designed to heat domestic water directly from the
home water supply system.
When hot water is required and the tap is turned, the internal water flow switch will send a signal to the diverter
valve to channel the hot water contained in the boiler to the plate heat exchanger. The temperature of
the domestic water highly depends on the temperature of the water inside the heating system. This can be
calculated to a good degree of accuracy by taking 10°-15°C away from the value shown on the stove control
panel (which is the temperature of the water in the boiler).
If hot domestic water is needed while the stove is ‘Switch-Off’ or in ‘ECOSTOP off’ mode, the stove will automatically
and immediately begin the start-up process to heat the water inside the boiler, and then the domestic hot water.
To ensure that the plate heat exchanger continues to work properly over time, one must be aware of the system
water hardness to prevent deposits from forming.
If the water in your home is very hard, you are advised to install a softening system upstream.
You are advised to service the plate exchanger annually to eliminate limescale and mineral
salts sediments or to replace the heating plates with new ones. These spare parts are
supplied by the manufacturer.
Fig. 24 - Domestic water production kit
8.8 WATER CHARACTERISTICS
The characteristics of the water used to fill the system are very important to prevent the build-up of mineral salts
and the formation of incrustations along the pipes, in the boiler and in the heat exchangers.
Therefore, please ASK YOUR PLUMBER FOR HIS ADVICE CONCERNING:
Hardness of water circulating in the system, to prevent problems of incrustation and
limescale, especially in the domestic water heat exchanger. (\x3e 25° French).
Installation of a water softener (if water hardness exceeds 25° French).
Filling the system with treated water (demineralised).
Possibly providing an anti-condensation circuit.
Installation of hydraulic shock absorbers to prevent water hammering along the fittings and
pipes.