Primaterra Primavent mechanism for automatic skylight control

Automatic hydraulic vent opener Primaterra — opens and closes windows according to the temperature, without electronics or user control.

Detailed specifications:

• Type: hydraulic / thermo-hydraulic cylinder — operates through temperature changes in the liquid inside the cylinder.
• Material: construction with aluminium for the frame and metal components for the spring elements.
• Opening force: 7 kg (able to lift a vent with a load of up to 7 kg).
• Activation temperature range: from ~ 17 °C to ~ 25 °C.
• Opening angle: ~ 30° (the maximum angle achieved by the mechanism).
• Versatility / model: model PAR3149 is widely mentioned for the Primavent mechanism in catalogues.
• Variant: often offered as a universal mechanism, suitable for various models of Primaterra / greenhouse vents.
• Construction with a double spring — built into the mechanism, allowing smooth operation and force during closing.
• Installation: mounting hardware, a hook for securing it in the open position, screws and instructions are provided.
• Warranty: 1-year warranty with correct installation and use according to the instructions.

Recommendations for use:

• Installation must be carried out carefully: secure the mechanism firmly to the frame of the vent or greenhouse.
• Make sure that the vent (the window that will move) does not exceed the permitted load (no more than ~ 7 kg) — an excessively heavy window may fail to open or damage the mechanism.
• The mechanism operates only within a temperature range of ~17-25 °C. At lower temperatures it will not activate, while at higher temperatures it will remain open.
• A stronger spring can be fitted if the vent is heavier than standard sizes.
• During installation, ensure that one end of the mechanism can be disconnected easily — this provides access to the inside of the greenhouse even when the vent is closed.
• After installation, monitor its operation during the first few days — make sure the mechanism opens and closes smoothly without jamming.
• Excessive force or jamming can wear out the parts — if you notice unusual sounds or slower operation, check the movement and, if necessary, adjust the springs or joints.

Benefits:

The Primaterra Primavent mechanism provides reliable automatic ventilation through a temperature-activated cylinder. It eliminates the need for electronic controllers, operates without electricity, provides continuous ventilation during normal temperature changes and is universal for different roof vent models. With proper installation and maintenance, it ensures a comfortable microclimate in the greenhouse.