LTG Flow rate controller Type VRD-W - The compact device among the flow rate controllers

Type VRD-W

The short LTG Flow rate controller Type VRD-W works with auxiliary power and controls the flow rate independent of the initial pressure in two parallel air lines as follows:
The flow rate is measured and controlled based on set values, either on the air outlet side or on the air inlet side. The other non-measured air flow is controlled synchronously because of the rigid mechanical connection between the two dampers. This also ensures safe and complete shut-off. Cutting back the number of flow rate controllers may result
                                                              in considerable savings with respect to investment
                                                              and data points.

Further advantages:

• Cost-saving design and low wiring expenses due to one compact controller being used for both supply and return air.
• Excellent control accuracy from +/-5% (Vnom) to +/- 15% (Vmin).
• Short installation length thanks to differential pressure measurement in the damper blade area. Thus, perfect for retrofitting and limited-space installation conditions.
• High control ratio of 1:10 (air speeds of 1m/s to 10m/s).
• Low minimum pressure loss, resulting in energy savings during operation and lower noise generation.
• Very low air leakage rate with the shut-off damper according to DIN EN 1751 Class 3.
• Good control accuracy even in case of unfavourable entry conditions, due to "jet effect".

The innovation for class room ventilation: LTG Facade-Fan Coil Unit Univent® Type FVS for ventilation of class rooms with high air quality for thermal comfort and low heating demand.   Room air quality of schools and conference rooms is influenced by factors like crowded rooms, restricted free ventilation, emmissions from building materials, etc. . LTG Aktiengesellschaft now offers the LTG Facade-Fan Coil Unit Univent® Type FVS that is suitable for ventilation of class rooms:

Advantages of the LTG Facade-Fan Coil Unit Univent® Type FVS- The All-in-one solution

	Compact design with easy connection to the facade, air-tight outside air damper, and excellent heat insulation
	Quick and easy installation, in case of retrofitting minimum disturbance of ongoing operations.
	High thermal and acoustic comfort.
	Easy operation: On/Off switch, air speed (flow rate) selector, secured energy-efficient operation and thermalcomfort due to optimum background control
	High outside air flow rates (up to 700 m³/h).
	Outside air module with integrated wheather protection grille, air-tight outside air damper and excellent heat insulation.
	Integrated compact silencer with enhanced low frequency attenuation.
	Low sound pressure levels, e.g. 35dB(A) at 600m³/h and 8dB room absorption.
	High-efficiency operation.
	All-in-one solution with air conduction system rapidly reducing temperature and speed differences.
	Low power supply (0.33 W/(m³/h)), meeting SFP2, (specific fan power).
	High sanitation standard thanks to easy frost protection without electrical reheating, high-quality air filters (F7 supply air, F5 exhaust air), protection against humidity acc. to VDI 6022.

LTG Facade-Fan Coil Unit Univent® Type FVS-

connection to the room

LTG Facade-Fan Coil Unit Univent® Type FVS 
Indivent-air flow principle

University Luigi Bocconi, Milano, world building of the year 2008- LTG Aktiengesellschaft supplies air technology

Private university Luigi Bocconi, Milano has been awarded world building 2008 in category "learning" at the World Architecture Festival in Barcelona.

University Luigi Bocconi

LTG Aktiengesellschaft congratulates University Luigi Bocconi on this prominent award and is proud to be involved in the project "University Luigi Bocconi". LTG Aktiengesellschaft supplied for this project LTG fan coil units type VKB for heating and cooling. Fresh air flow rates up to 200m³/h can be supplied while maintaining low noise levels. The unit is ideal for installation in access floors with a recommended clearance of 400-600 mm. Very precise adjustment of the units is realized via vibration-isolated, height-adjustable feet.

Installation LTG fan coil unit type VKB

In combination with the LTG fan coil units type VKB, LTG floor-mounted air diffuser type LDU-W have been installed in the World Building of the year 2008. The floor-mounted air diffuser offers high thermal and acoustic comfort and can be combined with the fan coil unit type VKB under the same grille. 

Installation LTG floor-mounted air diffuser type LDU-W

LTG fan coil unit VKB and floor-mounted air diffuser LDU-W are units of the LTG System Design, which offers a uniform appearance in the room whilst using different air conditioning systems.

Planning

Luigi Amman
Amman Progetti S.R.L.
Milano, Italy

Plant construction

Atel Sesti S.p.A.

Milano, Italy

LTG-components

LTG fan coil unit type VKB
LTG floor-mounted air diffuser type LDU-W

LTG fan coil unit type VKB

- fan coil unit for heating and cooling, fresh air supply, (de)humidifying operation

- very flexible installation by height-adjustable feet

- very low sound power level resulting from the low-noise tangential fan

- in combination with other LTG units for floor installation uniform appearance in the room by  the LTG System Design

  More about LTG fan coil units

LTG floor-mounted air diffuser type LDU-W

- high inductive floor-mounted air diffuser for heating and cooling and fresh air supply

- high thermal and accoustic comfort

- LTG System Design

  More about LTG floor-mounted air diffuser