Greenhouse window vent opener instructions

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C: Suitable for greenhouse vents weighing up to 15 kg / 33 lbs. D: Your automatic window opener can be adjusted to start opening at. AUTOVENTS INSTALLATION MANUALS AND PUBLICATIONS. Here you will find installation manuals with fitting and setting Louvre Vent Opener Instructions.The Autovent is now ready to fit. 4. Because the design of greenhouse vents varies considerably, it is impossible to illustrate every type of fitting.