VRV roof cowls are designed to provide vertical discharge exhaust for mechanical ventilation systems. Butterfly type dampers prevent rain water entry when the system is not operating. VRV models are designed for circular, flange connection applications.
The range is manufactured from galvanised steel and aluminium.
Can be mounted at angles of up to 30°
Smoke spill compatible
Available in optional Colorbond™ colours.
Vertical discharge cowls should only be used where exhaust air velocities are sufficient to prevent rain ingress during operation. For low air velocity applications refer to VCQ horizontal discharge cowls. In high wind speed locations, the use of magnetic catches is highly recommended.
Selection and Data
Refer to the latest product datasheet for individual model specification. Datasheets are available from our electronic selection software FansSelect.
|Design Airflow (l/s)|
|Design Pressure (Pa)|
|Air Density (kg/m3)||1.204|
|Description||Roof Cowl Round Down Discharge|
|Fan Diameter (mm)||200|
|Fan Speed (RPM)||0|
|Absorbed Power (kW)||0|
|Peak Power (kW)||0.00|
|Total Efficiency (%)||0.0|
|Static Efficiency (%)||0.0|
|Motor Power (kW)||0.00|
|Full Load Current (A)||N/A|
|Starting Current (A)|
|Frame Size (mm)||0|
|A weighted sound pressure value is spherical free field for comparison use only.|
|Sound Power Spectrum (dB)|
|The sound power level ratings are shown in decibels & referred to in 10 watts.|
|Spectrum (Hz)||63||125||250||500||1k||2k||4k||8k||Total SPL@m dB(A)|