The vent is a simple element mounted in a window, so that even with the windows tightly closed, an adequate flow of fresh air to the interior may be obtained. It allows the efficient exchange of stale air for fresh air (delivered from the outside). The air coming through the vents in the rooms flows through the entire apartment to rooms with ventilation ducts (kitchen, bathroom), through which it is removed to the outside.
The vent consists of two parts: the inner part, responsible for controlling the amount of air supply and the outer - the hood, which protects against rain and insects.HUMIDITY CONTROLLED VENT + PRESSURE VENT WITH ACOUSTIC CONNECTOR
EXR.HP - HIGRO® and PRESO™ all in one vent!Setting the switch to HIGRO makes the vent automatically adjusts the damper.
The air flow is dependent on the water vapor content (relative humidity) inside the room, i.e. the air impurities resulting from activities such as washing, cooking, drying, etc. The control sensor is a polyamide strip, which influenced by changes in the relative humidity of the air changes its length, causing a greater or smaller opening of the damper, and thus allowing a greater or lesser air flow into the room.
However, placing the switch in position "1" - maximum opening, triggers a change of function of the vent from humidity controlled to pressure controlled. With a large pressure difference between indoors and outdoors, the amount of air supply is limited by the lock in the outside hood.
Window vents are designed so that outside air does not come into direct contact with the sensor. Thanks to this, the conditions inside are analyzed, instead of the outside. The vent operates without human intervention and does not require a power supply.
external hood with pressure regulator - protects against rain and insects and reduces the channel through which air flows during a large pressure difference between the inside and the outside of the room
mounting pad - used to attach the vent to the window
the inner part - responsible for the amount of air supplied.