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If the installation option is by closed expansion vessel, this should not be less than 25
liters and the safety valves should be 3 bars (suitable for use up to 90°C). Additional
placement of a pressure and temperature safety valve (3bar / 90°C) is advised.
For the purpose of emptying the appliance, a tap must be placed in one of the outlets
provided for that purpose in the lower side of the appliance.
The heat transport fluid should be water with the addition of an anti-corrosion product,
non-toxic and in the amount recommended by the manufacturer of the product.
The automatic combustion regulator prevents the temperature of the water inside the
appliance from rising too high if the thermal input removed is lower than that produced.
It does so by reducing the primary air intake and therefore slowing down the speed of
combustion. This is an important safety and security mechanism, preventing water from
boiling and/or pressure from increasing too much, making emergency safety devices work.
The regulator must be placed in the thread indicated for this purpose in the diagram and
must be adjusted to close the primary air intake door at 80°C – in order to achieve the
proper functioning of any of the equipment referred to in this manual, the
automatic combustion regulator must always be installed.
If there is a risk of freezing in the space where the recuperator is located or in the fluid
ducts, the installer shall add to the circulating fluid an antifreeze in the proportion
recommended by the respective manufacturer to avoid freezing at the expected absolute
minimum temperature.
Never turn on the recuperator without the hydraulic circuit being full of fluid and in full
operation.
It is essential to be able to access the various components of your hydraulic installation
during the life of your equipment, in order to be able to carry out its regular maintenance
and intervene or replace the components that are necessary over time.
