HERZ – Air vent is used for venting of the central heating installations. The air vent should be placed nearby the boiler or at the highest points of installation. Installations must be carried out in such a way that the retention of air bubbles in a certain part of installation is not possible. Before usage, unscrew the polypropylene cover cap on the lid for 2 to 3 turns. In case of uncontrolled medium leakage, tighten the cover cap. The air vent must be cleaned or replaced. We always recommend to use backflow preventer for easy service and replacement of the air vent. The air vents 1 2630 1X have a STOP function that prevents the entry of ambient air into the central heating installation.
Max. structural pressure: 12 bar (1 2630 0X) 10 bar (1 2630 1X)
Max. operating pressure: 8 bar (1 2630 0X) 10 bar (1 2630 1X)
Min. operating temperature: 0°C
Max. operating temperature: 110°C (no steam)
Medium: Heating water quality according to ÖNORM H5195 or VDI-Standard 2035. The use of ethylene or propylene glycol in a mixing ratio 30% is allowed. Please refer to manufacturers documentation when using ethylene glycol products for frost and corrosion protection. The HERZ air vent is not suitable for usage of aggressive medium (such as: acids, alkalis, combustible and explosive gases.) because it can damage the sealing components.
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