Office Ventilation Solutions
Comfortable indoor climate solutions from FläktGroup helps with productivity, reduces running costs and compliment office spaces.
Indoor Air Comfort for the workplace
Offices are built for people and the quality of ventilation in the indoor environment will affect their health, comfort and productivity.
You will find offices in a variety of different building types such as business premises, schools, factories, shops... in fact most commercial buildings will accomodate employees working in an office. It is therefore hugely important that the air we breathe is clean to maintain our health and remains comfortable for our well-being – this is the base for the widest offering for office ventilation in the market from FläktGroup.
There are five key areas that an HVAC system from FläktGroup can affect:
- Temperature
- Humidity
- Velocity
- Noise
- Fresh Air (Including odour)
Conference Rooms
A conference room presents a unique challenge, with long periods of little or no occupancy versus times when full with bodies and electrical equipment. Managing the temperatures in these rooms requires sensors and variable air flow to match the undulating occupancy levels.
Challenge: Ventilation for Conference rooms
Delivering high comfort levels by controlling temperature, and matching ventilation to highly variable occupancy levels whilst maxing on energy saving.
DESCRIPTION:
Use: Conference and meeting room
Room Area: 40 m2
Number of Persons: 2-20
Ventilation Requirement: Normal
Solution: All air VAV system
When ventilation allocations are high and heat loads are below 100w/m2 room temperature can be effectively controlled with air as the coolant. Using EMSS damper responding to room thermostat and CO2 sensor, air flow can be varied for temperature control and fresh air regulation matching occupancy levels.
Optimix in LO2 mode delivers a draught free comfortable environment by actively controlling air velocity to 0.2 m/s from minimum right through maximum occupancy levels.
Thus simply matching ventilation to demand saves energy and when connected up to eQ PRIME with ReCooler HP, further savings can be achieved from year round exceptional efficiency of the SEMCO energy recovery wheel and heat pump combination.
The eQ Air Handling Unit with ReCooler removes the need for condenser on roof and for associated pipework which when combined with Veloduct system offers the simplest installation and a huge potential for saving expensive time on site.
Solution: Air-water system with VAV Chilled Beams
For requirements with high heat loads and high occupancy variations, room temperature can be effectively controlled with chilled beam systems where water will take around 75% of the cooling load.
Wega II chilled beam not only deals efficiently with heat loads using water as the main coolant but has VAV functionality and the ability to match ventilation to occupancy levels using STRA-24 room controller, Proximity sensor and CO2 sensor.
Demand control ventilation of Wega II not only improve energy savings but also removes discomfort from over cooling at low occupancy levels. With VAV functionality of Wega II airflow levels can vary from the minimum energy saving mode to the maximum boost level, with velocities in the occupied space controlled for comfort.
Chilled beam systems are designed to run dry and when connected up to eQ Master with twin wheel system, dehumidification of outside air is achieved with the highest efficiency and lowest LCC as Twin wheel system drastically reduces chiller and boiler size.
Open plan offices
Open plan offices must accommodate the needs of many occupants. Solutions from FläktGroup factor in the challenges of these spaces to ensure that comfort is maintained with variable air temperature to meet the demands of office employees.
Challenge: Air Temperature challenge
Open plan offices must accomodate the needs of the many without affecting the comfort and productivity of any individuals. A particular challenge of these spaces is to ensure that environment is the correct temperature in spite of changing conditions, such as light entering at the windows or potential draughts.
Open plan offices have highly fluctuating occupancy levels and are seldom at full capacity. The ventilation on these open spaces needs to be variable in order to minimise cost and optimise efficiency.
DESCRIPTION
Use: Medium density occupancy with low level partitioning within medium to large space
Room area: 50 m2
Number of persons: 4-20
Ventilation requirement: Normal
Solution: Air-Water System with Chilled Beams
Chilled beams provide ventilation, cooling/or heating. Working on the principle of induction to drive fresh air across heat exchanger coils, are the most efficient form of cooling with high comfort levels.
With cooling load distributed approximately 25%-75% between air and water, the highest proportion of the load is carried by water with 4 times higher cooling capacity than water, accounting for the highly efficient system.
Occupancy levels are rarely at 100% hence over cooling is the common complaint with CAV chilled beams systems operating on proximity sensing.
Ventilation levels in Open Plan office areas need to be turned down to match occupancy levels. VAV chilled beams with simple CO2 sensing would provide the required demand control at highest comfort levels.
Cellular Offices
Room size and occupancy levels affect the temperature of an office room. A solution needs to be versatile and provide flexibility for indoor comfort throughout the day.
Challenge: Air Temperature challenge
Offices are built for people, and the quality of ventilation in the indoor environment will affect their health, comfort, and productivity.
Occupancy levels in cellular offices frequently vary from overcapacity to vacant. Ventilation has to be managed to minimise cost and optimise efficiency.
DESCRIPTION
Use: Office designed for one person.
Room area: Approx. 10 m2
Number of persons: 1 + possible 2 visitors
Solution: Air-Water System with Chilled Beams
Chilled beams provide ventilation, cooling and/or heating. Working on the principle of induction, to drive fresh air across heat exchanger coils, is the most efficient form of cooling with high comfort levels.
With cooling load distributed approximately 25%-75% between air and water, the highest proportion of the load is carried by water with 4 times higher cooling capacity than water, accounting for the highly efficient system.
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Office Ventilation Products
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iQ STAR LYRA® II CHILLED BEAM
- Available with Pi function (pressure independant DCV)
- High flexibility
- Low noise
- Easy installation
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iQ STAR WEGA® II CHILLED BEAM
- Available with Pi function (pressure independant DCV)
- High flexibility
- Easy installation
- Variant for hygienic applications - VDI 6022 standard compliant
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Hygiene version with coated coil, drop down coil and plenum access for easy cleaning
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iQ STAR NOVA® II EXPOSED CHILLED BEAM
- Available with Pi function (pressure independant DCV)
- High flexibilty
- Easy installation
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Cassette-Geko FAN COIL UNIT
- Low noise level
- Low energy consumption
- Easy installation and service friendly
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EMSS CIRCULAR FLOW VARIATOR
- Real time air flow display
- Setting up values requires no special tools
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BDEK SPIRAL TUBE