| Fans & Ventilation Products |
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| The Conventional Ventilation System was Ducted Ventilation System. In ducted ventilation system has following features: |
| Ducted ventilation system has following features: |
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Provision of Fresh air fan and Exhaust Air Fans with ducting arrangement as per requirement. |
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To be operated based on timing control. |
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Full capacity of Fans has to be operated irrespective of Smoke level or CO Concentration. |
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| The Modern method of Ventilation system is the Ductless Ventilation system having following features: |
Ductless Ventilation system having following features: |
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| Advantages of Ductless Ventilation |
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No ducts: duct system and accessories are eliminated |
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Improved air quality and efficient Operation |
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Optimum use of Car Park Space & Optimisation of Head room for Vehicles and Pedestrians. |
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Flexibility in installation,quicker installation |
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Effective smoke management |
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During Fire Conditions, the volume of air to be handled is of the order of 1.25 lakh CFM. Under this situation ductless system fares better compared to ducted system. |
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| How Energy Saving is Achieved in Ductless Ventilation? |
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Ducts are associated with pressure drop, hence higher size F.A/E.F. are reqd. |
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Jet fans are located using CFD Analysis in a manner that they help FA/EF to suck/exhaust air respectively, hence smaller size (HP) FA/EF required. |
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During low traffic in Basement, depending upon CO level concentration, only a group of Jet fans may be switched ON by IBMS to distribute/ dilute CO concentration, while in ducted system higher capacity FA/EF have to be kept ON most of the time. |
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| CONSTRUCTION / CHARACTERISTICS OF A JET FAN |
1.) Casing made of Sheet Steel
2.) Special silencers at the inlet and outlet side
3.) Inlet cone(s)
4.) Protection guard(s)
5.) Mounting brackets for ceiling suspension |
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Suitable for : 300O C operation for 1 hour |
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Speed : 1450 / 2900 rpm – Dual speed |
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CFM : 1900 / 3800 |
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KW : 0.3 / 1.5 |
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Sound level : 53 / 71 dB |
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Area Served by each Fan – 280 sq.mtr.(Approx) |
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| Applications Areas |
| Offices |
Office buildings requires good indoor climate during the day as well as heat recovery and reheating of supply air depending on outdoor conditions. We know now that occupancy rate during the daytime is less than 50 % in an normal office today. This is why DCV, demand controlled ventilation, can be used preferably. |
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| Health Care |
Healthcare can encompass numerous activities from operating theatres to resting rooms. Different types of systems are used to create a low noise and draught free environment. |
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| Industry |
Industrial premises will often have high airflows and the height of the room is often high. If the work carried out there generates high level of air pollution. Also air is often used to take care of the heating demands in wintertime by providing over tempered air in to the room. Both conditions must be done in a way that no draughts will occur in the occupied zone |
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| Shopping Center |
The look of a shopping centre varies a lot, from one or two floors outlets to high buildings with many floors and large glass facades. The need can also vary from bringing cold air into an shop with lots of spotlights, to have diffusers that take away the mist from inside the window. Both must be done under non draught conditions, not to affect the customer shopping. |
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| School |
A school or more specific a classroom is a space where DCV, demand controlled ventilation has the serve well. The usage is intermittent from hour to hour and when occupied, it needs to take care of the conditions so student can concentrate properly.
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| Residential |
| Ventilation in residential buildings is solved in 3 different ways; |
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Ventilation in residential buildings is solved in 3 different ways; |
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Natural ventilation |
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Mechanical exhausted air systems |
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Balanced ventilation system with heat recovery |
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Energy efficient products and system solutions are required in order to lower energy costs and to make an environmental friendly installation. |
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Circular Inline Fans: |
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The series is designed for installation in ducts. All the Circular Inline fans have minimum 25 mm long spigot connections. The fans are delivered with a pre-wired potentiometer (0-10V). |
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| Cabinet Fans –Acoustically & Thermally Insulated |
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The CABINET FANS are driven by EC external rotor motors. The power electronics are integrated in the motor housing. MUB-EC can be used as fan module in individual supply or exhaust air applications. |
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| Car park jet fans |
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Axial fans are available in duct mounted versions as well as roof (D) and plate mounted (P). Max air flow 180 000 m3/h. Certified for 300°C/120 min. & 400°C/120 min. |
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| Car park jet fans |
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The jet fans are equipped with adjustable aluminium impellers and IEC standard motors, available for ambient temperatures for CO exhaust (between 40°C and 55°C) or for high temperature smoke exhaust (300°C/2h) applications. Certification is in accordance with EN 12101-3. Two speed high temperature fans can also be used for normal CO extract ventilation (dual purpose fans).` |
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| Induction fans |
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Induction Fan in compact casing with high efficiency radial fan with revision switch (optional). Using for horizontal construction. All steel parts are hot-dip galvanized, for best corrosion protection. IEC standard motors, insulation class H, enclosure class IP55. Systemair induction fans have been tested in accordance with EN 12101-3 and are CE labelled |
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| ROOF Extractor Fans |
The Centrifugal Fan models have impellers with backward-curved blades and external rotor motors. The casings are made from seawater resistant aluminium and the base frame is powder-coated galvanized steel. Also available with tilting device with 50 mm mineral wool insulation for low noise level. |
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| Axial type Smoke-extract roof unit. Max air flow 55,000 m3/hr. Certified for 400°C/120 min and 600°C/120 min. |
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