Avoid freezing and boiling heat transfer fluid.
protection measures prevent the risk of freezing nights and the danger in winter. Some measures in mild climates are brought into use a few times while in harsh climates could be the total site failure (emptying the system), heating collectors for recirculating heat transfer fluid heating collectors for electrical resistance use of antifreeze, collectors that support the freeze, waste collectors (When the ambient temperature is around 0 º C open the drain valve and when the temperature of 4 º or 5 º C fills the system with mains water (not valid in aluminum circuits for air intake).
Measures Boiling protection against the risk should be avoided in facilities that are out of service. To prevent boiling in the collectors include the expansion vessel, safety valve, reducing radiation or use of bodily fluids. To prevent boiling in storage should be dimensioned with a higher ratio of 50l/m2.
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