EHV
The EHV valve is available in 4 variants with different override principles. Get an overview of the variants below or read the detailed description beneath the table.
Humidity-controlled forced extraction |
X |
X |
X |
Forced extraction via external signal (switch not supplied by EXHAUSTO) |
|
X |
|
Forced extraction via motion sensor |
|
|
X
|
Output signal when motion sensor is activated (digital) |
|
|
|
Battery supply 2x1.5 Volt AAA batteries (life approx. 2 years)* |
|
X |
X |
Adjustable basic airflow |
X |
X |
X |
Material |
White ABS plastic RAL9003 |
* Option for replacing batteries with 12VAC power supply, EHV Supply Card
Generally, for all tree models:
All EHV valves consist of two damper plates, one permanently fixed for basic ventilation (can be set in positions 0 to 5) and one variable plate controlled by the relative humidity. The humidity-controlled damper plate will start to open at 40% RH and will be fully open at 85% RH.
Function description of the individual models:
EHV-B
Humidity-controlled extraction unit
EHV-S
Humidity-controlled air extraction unit overridden by an external ON/OFF switch. The two cables from the EHV are routed to a single-pole switch. When contact is made, the valve will open the humidity section to max. after approx. 1 min. When the contact is broken, the damper plate will close again after 20 minutes - unless the humidity is so high that this damper section remains partly open.
EHV-P
Humidity-controlled air extraction unit overridden by an integral PIR sensor. The PIR sensor must be activated via movement twice, with a maximum of one minute's interval, in order to make the contact. When contact is made in the PIR sensor, the valve will open the humidity section to max. When the contact is broken, the damper plate will close again after 20 minutes - unless the humidity is so high that this damper section remains partly open.