Windvent SV » Design & Manufacture »
Windvent SV terminals are available as either square or round terminals & can be designed and manufactured to complement the architectural aesthetics of the buildings to which they are installed or alternatively, they can be give a contrasting appearance, adding a feature aspect to the overall structure of the building.
Air Change Rates
The air change rate is a calculation based on the required input of fresh air, the corresponding extraction rate and building size and usage. Air change rates are determined and calculated according to CIBSE standards and guidelines. The size and quantity of required terminals is based on this air change rate calculation. The size of the natural ventilation unit and number of louvres is dependent upon the air changes required and the building dimensions. For larger rooms a series of units may be required.Wind Conditions
To allow for differing wind conditions and building requirements, the passive stack part of the system features adjustable dampers. These dampers are linked to a programmable control system, which allows the ventilation rate to be controlled by room censors. Control units can be set to leave the dampers fully open within summer months, when buildings are empty in the evening time. By doing this, stale air can be fully removed leaving a clean atmosphere and a 'fresh' start in the morning. In the winter months the controller is able to set the flow rate to reduce the effect of colder air diluting the warm atmosphere, whilst still performing its overall functionality.Fan Boost
The low powered DC fan unit is available in three different sizes with the corresponding airflow rates:- 12v - 170L/s
- 24v - 300L/s
- 24v - 680L/s
Design
A computer generated likeness of the installed system can be produced for approval prior to manufacture.Manufacture
Our Windvent SV units are constructed in-house by experienced craftsmen and women. They are made from fully welded, corrosion-resistant aluminium and fitted with BSRIA tested internal acoustic and fire-resistant material. Adjustable modulating dampers and transfer grilles are manufactured from anodised aluminium or perforated stainless steel panels so they maintain weather integrity at all times. All units are manufactured to BS EN ISO 9001 and suit most architectural design requirements. Windvent SV louvres are designed to ensure that the maximum available free area of the unit is utilised. The units may be powder coated to your specifications in any RAL colour of your choice.Installation
Windvent SV's are installed by our own highly experienced fitting teams, all trained to the highest health & safety standards. Installations onto flat, pitched roofs or even onto the roof apex itself are regularly achieved.Standard Components & Specifications
- 12v or 24v DC Power Supply
- 40w Solar Array
- Gel Acid Battery Pack
- PWM Solar Charge Controller
- Low powered DC fan unit - standard DC fan sizes (with dimensions): 12v (172mm), 24v (225mm) or 24v (325mm diameter) with corresponding airflow rates: 170L/s, 300L/s and 680L/s
Guarantee & Warranty
The solar panels are provided with a manufacturers 20 year output warranty, the gel acid batteries are provided with a 3 year manufacturers discharge warranty and the low powered DC fans come with a 5 year or 50,000hr warranty. All other electrical components carry our standard 12 month Midtherm warranty.
