Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors (control arrangements F24S50/00)

Child Classifications

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• F24S 40/10 Protective covers or shrouds; Closure members, e.g. lids (transparent coverings F24S80/50)
• F24S 40/20 Cleaning; Removing snow
• F24S 40/40 Preventing corrosion; Protecting against dirt or contamination
• F24S 40/50 Preventing overheating or overpressure (by draining the working fluid F24S40/60)
• F24S 40/60 Arrangements for draining the working fluid
• F24S 40/70 Preventing freezing (arrangements for draining the working fluid F24S40/60)
• F24S 40/80 Accommodating differential expansion of solar collector elements
• F24S 40/90 Arrangements for testing solar heat collectors