Controllers
Zone controllers
Controllers are used to automate the management of air distribution, flows, and to manage responses to temperature, humidity, flow and other sensors embedded in a SVPro solution. Each with varying capabilities and complexity, the appropriate zone controller is available for each application.
SolarVenti SControl
SolarVenti SControl brochure
Humidity and temperature
For measuring relative air humidity and temperature
Measurement in the entire range between 0 ... 100%rF
Temperature resistant from -70°C to +180°C (depending on the type of probe)
Pressure resistant up to 100 bar (depending on the type of probe)
Sturdy metal case, protection class IP 65
Outstanding precision and stability
Graphic trend display and measured value history for the previous year
Traceability to NIST
As an option also available with calculation and display of dew point/frost point temperature, absolute humidity, mixing ratio, wet bulb temperature, enthalpy, volume concentration, water saturated vapor pressure and differential temperature
- Measurement in the entire range between 0 ... 100%rF
- Temperature resistant from -70°C to +180°C (depending on the type of probe)
- Pressure resistant up to 100 bar (depending on the type of probe)
- Sturdy metal case, protection class IP 65
- Outstanding precision and stability
- Graphic trend display and measured value history for the previous year
- Traceability to NIST
- As an option also available with calculation and display of dew point/frost point temperature, absolute humidity, mixing ratio, wet bulb temperature, enthalpy, volume concentration, water saturated vapor pressure and differential temperature
Single and multi-point zone controllers. Humidity and temperature transducers. SolarVenti SControl.
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Controllers are available that switch the system based on temperature differential, humidity differential, or a timer. The base unit operates whenever sunlight hits the panel. See the Controllers & Transducers page for options.
A motorised back-draught damper closes when the collector fan stops (night, heavy cloud), preventing cold air from flowing backwards through the duct and into the building. It is a standard component in any installation with a long duct run.
SVPro offers differential temperature controllers, humidity-differential controllers, and programmable timer modules. The controller page lists current models with their input/output specifications.
Yes. A differential humidity controller compares indoor and outdoor absolute humidity and stops the fan if outside air is more humid than inside. A differential temperature controller does the equivalent for temperature.
SVPro supplies matched temperature and humidity transducers designed for the controller inputs. Indoor and outdoor sensors are included.
No. The integrated PV cell produces no power after sunset, so the fan stops. The building retains heat and low humidity from the day's operation. A back-draught damper prevents night air from entering through the duct.
In summer, if outside air is hotter than the target indoor temperature, the controller can close the damper to prevent overheating. The system is most effective in winter and shoulder seasons for heating and drying in care facility applications.
Night purging — drawing cool night air through the building — is possible when the system is fitted with a mains-powered fan and a controller. This removes heat stored in the building fabric, reducing next-day cooling loads. The collector's filter ensures clean airflow during purging.