Press text Energy_ppr_FO_full_en (approx. 2220 characters, without legends)

Hinwil/Switzerland, 01/2007

Belimo fan optimiser:

Cut fan power consumption by up to 50%

Belimo room and system solutions now let you control the fans in CAV/VAV systems according to demand, based on the damper positions of the downstream VAV units. This is possible thanks to the new Belimo fan optimiser: supply pressure regulation – presently the standard method – can in future be dispensed with and fan energy consumption verifiably cut by as much as 50% while simultaneously increasing the convenience for users.

No unnecessary energy consumption

Until now, constant regulation of the fans has ensured that even the most inaccessible VAV unit receives sufficient supply pressure. Since the remaining units are provided with too much air as a result, they have to eliminate the excess pressure by closing the dampers. This means noisy operation, inferior control characteristics and a lot of unnecessary energy consumption.

Demand based system solution

Belimo MP technology allows fan output to be selectively controlled based on actual demand. The damper position of each VAV unit is recorded and transferred to the COU24-A-MP fan optimiser via the MP-Bus. It is used there as a control variable to facilitate energy efficient operation of the frequency converter controlled fans. The damper which is open the widest serves as a reference. Consumption, flow noise in the air duct system, operational reliability and control characteristics are consequently optimised. In conjunction with single-room temperature controllers – such as the CR24 from Belimo – account can also be taken of the actual room requirement.

Energy and cost savings

The massive energy savings are a practical way to achieve better results with regard to the new EU energy efficiency directives. By doing away with the costs for the pressure regulation system and significantly reducing wiring expenses by networking via the MP-Bus, this solution guarantees rapid payback even in small or medium-sized buildings – in new, retrofitted or renovated systems.

This innovative solution is ideal for a variety of system concepts (CAV, VAV or CAV/VAV combined). The fan optimiser’s pre-configuration and LCD displays permit simple engineering and efficient commissioning.

For more information:

Headquarters:

BELIMO Automation AG
Brunnenbachstrasse 1
CH-8340 Hinwil/Switzerland

Tel. +41 (0) 43 862 61 11
((Belimo_press_pic_Fan_Optimizer_01.jpg))

Use energy efficiently: Belimo MP technology and the new fan optimiser cut the energy consumption of fans by up to 50%.

((Belimo_press_pic_fan_optimiser_02_e.jpg))

((Belimo_press_pic_fan_optimiser_03_e.jpg))

The Belimo group is a leading vendor worldwide of innovative electrical actuator solutions in heating, ventilation and air conditioning technology. The group achieved sales of CHF 280.3 million in the business year 2005 and employs more than 900 people. Information on the company and its products can be found in the Internet under

The shares of BELIMO Holding AG have been traded on the Swiss stock exchange since 1995 (SWX:BEAN).