Anti-Frost Protection; Boiler Water Characteristics - Trianco TRO Evolution System Series Installation And Operating Instructions Manual

- After cleaning, replace the fume deflectors, the top condenser cover and the top outer
cover of the boiler. Then put the cleaning brush back inside the boiler.
- The condensation siphon should be cleaned once a year. To do this, remove it and wash
it in soapy water. Replace the siphon after cleaning.
Cleaning brush

17.2.- Anti-frost protection

The TRO Evolution System boiler has a function for preventing frost damage to the installation.
This will function as long as the appliance remains plugged into the mains. Despite this
function, and particularly in areas with very cold weather, we recommend taking
precautions in order to prevent damage to the boiler. It is advisable to add anti-freeze to the
water in the heating circuit. If the boiler is to be out of use for long periods of time, we
recommend draining all the water and leaving it empty.

17.3.- Boiler water characteristics

In areas with water hardness of over 25-30ºF, treated water must be used in the heating
installation to avoid any scale deposits on the boiler.
It should be noted that even a few millimetres of scale will greatly reduce the boiler's heat
conductivity, causing a major drop in performance.
Treated water must be used in the heating circuit in the following cases:
- Very large circuits (containing a large amount of water).
- Frequent filling of the installation.
If repeated partial or total draining of the installation is necessary, we recommend filling it
with treated water.
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