Halton Vario — The fully flexible,
total solution for green buildings
Halton Vario green buildings
50
*
%
15 min A Class
Promote energy efficiency, layout flexibility,
and user satisfaction
Green buildings are sound investments and good places
to work. They promote wellbeing as well as long-term
financial benefits like increased rents, longer contracts,
and greater building valuations.
Halton Vario solution not only makes green buildings
a reality, it makes them more energy efficient, more
flexible to layout changes, and more comfortable to
work in than ever before.
Halton Vario is a total indoor climate solution from
ventilation products to controls for rooms, zones, and at
the system level. Halton also verifies the performance
of your system so you can be sure that your building’s
indoor climate is exactly as designed from day one.
Reduce energy consumption by up to 50%
Halton Vario solution is up to 50% more energy-efficient
than conventional air-conditioning systems. For the first
time in the history of chilled beam systems, the system
monitors space usage, controlling and adjusting cooling
and ventilation according to the demand. Thanks to the
smart controls the indoor environment conditions are
maintained at an optimal level.
Radically lower churn costs with a fully flexible system
Applying Halton Vario solution office spaces can be
converted in to a meeting (and vice versa) in 15 minutes
or less. Airflow rate is automatically adjusted based on
air quality and occupancy, and boosted when a meeting
room is in use.
As a result, Halton Vario’s ventilation system’s churn costs
are significantly lower than those of a traditional system.
Advanced flexibility also makes short tenancy contracts
more profitable for facility owners, and the layout of the
building is no longer a limiting factor for building users.
Halton Vario for category A indoor environments
Halton Vario controls ventilation and room air
temperature demand-based. Halton Vario provides A
class indoor environmental quality that is specified in
regular cited international standards (ISO EN 7730, EN
15251 and CR 1752).
Comfortable thermal conditions and indoor air quality
create productive working conditions and users’
complaints on indoor conditions are minimal. Satisfied
tenants stay longer and increase tenant occupancy rates
in real properties.
Halton services (Halton Validate and Survey services)
guarantee operation prerequisites in installation and
commissioning phases and finally adjust personalized
indoor conditions in occupied buildings.
Promote user satisfaction with superior
indoor climate quality
Thanks to Halton Vario’s demand-based ventilation,
your indoor environmental conditions will always be
excellent, promoting the satisfaction and productivity of
your building’s users.
Why choose Halton Vario solution?
1. A proven, total solution all from one supplier
2. Significant reduction in energy consumption
3. Fully flexible layout and lower churn costs
4. Excellent indoor climate quality enabling wellbeing
5. Reduced running and maintenance costs
* This value can be achieved in calculatory simulation with typical user profile and with 15% meeting room allocation.
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Environmental certifications
Your indoor climate solution can make a significant
environmental impact
Buildings account for 40% of all primary energy
consumption in Europe and the United States.
Furthermore, ventilation and air conditioning typically
represent 30-50% of the total energy consumption in
an office. Clearly, a building’s design, chosen method
of heating, cooling and control can significantly impact
not only environment, but also people’s health, thermal
comfort and ultimate productivity.
As a means to manage this impact and provide a
transparent rating system, environmental certification
programs are gaining in popularity. Environmental
certification programs generally assess energy
and water efficiency, site sustainability, materials
management, indoor environmental quality,
and occupant wellbeing. The most common
of such programs are LEED, BREEAM, the EU
GreenBuilding Programme, DGNB (Germany),
HQE (France), and CASBEE (Japan).
Indoor environmental quality
• Minimum indoor air quantity: Halton Vario’s airflow
rate is adjusted based on the space usage, ensuring
superior air quality while minimizing energy
consumption.
• Outdoor air delivery monitoring: Halton Vario monitors
carbon dioxide concentrations within occupied spaces.
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Halton - Your global partner throughout the life cycle of the building.
Working in partnership with your project team, Halton helps you find the
optimal indoor climate solution for your project, in terms of operational
target-setting and system design, indoor air quality, energy efficiency,
and flexibility. In addition to system delivery, Halton ensures smooth
start-up and high performance through its validation services.
Enhance your environmental certification
performance with Halton Vario solution
As a total indoor climate solution for green
buildings, Halton Vario can contribute to your
building’s environmental certification performance.
Halton Vario solution contributes to the following LEED (2009) categories:
Energy and atmosphere
• Minimum energy performance: Halton Vario systems
contribute significantly to improving building energy
performance in cooling, dehumidification, and fan
energy use compared to standard systems.
• Optimised energy performance: Halton Vario’s
demand-based ventilation and fan optimizer
functionality will support energy savings significantly.
LEED credits are earned for 12-48% energy savings in
new buildings compared to a baseline building.
• Renewable energy: The Halton Vario air-water
system enables efficient use of geothermal and solar
energy sources. LEED credits are earned for buildings
that use 1-13% of their energy from renewable
sources.
• Enhanced commissioning: Halton’s validation
and user and maintenance training support LEED
enhanced commissioning guidelines.
• Enhanced Refrigerant Management:
Halton Vario solution can be used without refrigerants.
Guaranteed system performance and indoor
climate conditions with Halton services
• Increased ventilation: Halton Vario’s flexibility
enables increased ventilation in occupied spaces
as well as lower ventilation rates in
non-occupied spaces while still maintaining
superior indoor air quality at all times.
• Controllability of Systems—Thermal Comfort:
Halton Vario controls conditions in rooms,
meeting rooms, and open plan offices.
• Thermal Comfort—Design: Halton Vario ensures
a comfortable thermal environment and
promotes the wellbeing of building users.
• Thermal Comfort—Verification: Halton offers an
Occupant Satisfaction Survey which measures
the thermal comfort satisfaction of occupants,
recommended to be carried out between 6 to
18 months after occupancy. Thermal comfort is
ensured through corrective measures in cases
where occupant dissatisfaction exceeds 20%.
Innovation and Design Process
• Innovation in design: Halton Vario shows
exceptional performance in energy efficiency
that is well above the requirements set by the
LEED Green Building Rating System for new
construction.
Halton Design Studio
Halton Life Cycle
Target levels for the indoor climate in buildings are
determined already during the preliminary design
and planning phase, and implementation of a highquality indoor climate requires well-functioning design
solutions. In co-operation with your project team, Halton
helps specify and customize the optimal solution for
your building. Development of customised products
or features, performance simulation in Halton’s indoor
climate laboratory, and full-scale or computational
simulation of indoor climate conditions, guarantee the
outcome and maximizes the success of your design.
Occupant satisfaction survey
Halton’s occupant satisfaction survey is a costeffective and quick tool for proactive and user-oriented
management of the indoor environment. The survey
provides detailed information about user satisfaction,
by mapping individual needs in different parts of the
building. When repeated regularly after the occupants
have moved in, the survey provides a method for
continuously guaranteeing individual comfort in the
building. Building users receive the survey through
an SSL-protected link. The results of the survey are
summarized into a report, including suggestions for
improving occupant wellbeing, safety and performance.
The survey offers facility owners a risk management
instrument, higher tenant satisfaction and continuous
rent income.
Halton Tune
Validation of system performance
System performance validation guarantees proper functionality of the ventilation system before the occupants
move in. By ensuring that all installations of components have been made correctly, and all parameters
have been set according to the design, optimal thermal
conditions and energy savings are achieved. Halton
helps you provide a fully functional, comfortable, and
safe indoor climate for the building users.
Validation of designed thermal conditions in new or
refurbished spaces reduces the risk of immediate complaints from users. Halton can assess thermal comfort
by measuring indices (e.g. DR, draught rate) calculated
based on temperature and air velocity measurements.
Fine-tuning of thermal comfort conditions
Fine-tuning of thermal comfort conditions is
recommended to avoid vicious circles of indoor climate
problems. Based on information gathered from the
occupant satisfaction survey, the required fine-tuning
services are defined. Fine-tuning of thermal comfort
conditions according to the final layout and occupancy
in offices increases productivity of work and reduces
sick-leave rates.
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Halton Vario room systems
Pixel Office Building,
Nanterre (92) close to Paris.
Halton Vario with air-water system
Zones
Halton Vario divides the system into ventilation zones to
ensure flexibility and controllability in order to save the
maximum amount of energy. Zones allow for efficient
control of ventilation rates and reduction of unnecessary
high pressure in the system. Zones with a flexible
design maximize layout flexibility and minimize churn
cost while keeping maintenance and adjustment simple.
Application
Excellent for offices and meeting room zones with
medium to high cooling loads.
System level
The Halton Vario Optimizer monitors the performance of
the ventilation system. It minimizes energy consumption by
keeping the lowest possible pressure level in the ductwork.
Rooms
Halton Rex chilled beams are used in office rooms, open
plan offices, and meeting rooms. In offices the ventilation
rate is adjusted according to occupancy of the space. In
meeting rooms, ventilation rate is controlled based on
occupancy and room air quality and temperature from
minimum to maximum (0-100%). The room controller
ensures perfect conditions in occupied spaces and saves
energy when spaces are unoccupied.
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Halton Vario with all air system
Overview
The air-water system is based on smart controls and
Halton Rex chilled beams. This system is one of the most
energy-efficient solutions available, resulting in up to 50%
energy savings compared to typical air-water systems.
Additionally, Halton offers an Occupant Satisfaction
Survey and Validation services which ensure over 80%
occupant satisfaction when deployed in the premises.
Scope
A total system for ventilation, cooling, and heating with
controls for rooms, zones, and at the system level.
Pixel Office Building,
Nanterre (92) close to Paris.
Benefits
• Up to 50% energy savings compared to traditional airwater systems
• Fully flexible design and layout
• Allows the use of alternative energy sources
• Excellent indoor climate conditions thanks to smart
controls
• A complete, factory-tested system with proven
performance
• Minimized installation and commissioning times
• All from one supplier
Overview
The all-air system is based on smart controls and Halton
Jaz active diffusers. Additionally, Halton offers an Occupant
Satisfaction Survey and Validation services which ensure
over 80% occupant satisfaction when deployd in the
premises.
Application
Excellent for offices and meeting rooms with low or
medium cooling requirements. May also be used in
internal zones with chilled beams in the perimeter zone.
Scope
A total system for ventilation and cooling with controls for
rooms, zones, and at the system level.
Rooms
Halton Jaz active diffusers are used for office rooms,
open plan offices, and meeting rooms. In offices and
meeting rooms, the ventilation rate is controlled based on
occupancy and room air quality and temperature. The room
controller ensures perfect conditions and saves energy
when spaces are unoccupied.
Zones
Halton Vario divides the system into ventilation zones to
ensure flexibility and controllability in order to save the
maximum amount of energy. Zones allow for efficient
control of ventilation rates and reduction of unnecessary
pressure in the system. Zones with a flexible design
maximize layout flexibility while keeping maintenance
and adjustment simple.
System level
The Halton Vario Optimizer monitors the performance of
the ventilation system. It minimizes energy consumption by
keeping the lowest possible pressure level in the ductwork.
Benefits
• Demand-based operation for increased energy
efficiency
• Fully flexible design and layout
• Excellent indoor climate conditions thanks to smart
controls
• A complete, factory-tested system with proven
performance
• Minimized installation and commissioning times
• All from one supplier
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Halton air-water systems
“Skanska has chosen many energy
efficient solutions which enable
superior air quality maintenance in
the Neptun office building situated
in Helsinki Finland. With Halton Vario
these qualities can be achieved cost
efficiently and it’s easy to control the
changes in the indoor environment.
High class office building
Neptun by Skanska Oy
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One of the meeting rooms
in Neptun building with
Halton Rex chilled beams.
Pellervo Matilainen,
Design Manager, Skanska Oy
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Rooms with the
Halton Vario air-water system
Wall control panel
Halton Rex 600 with
airflow control damper
Multi-sensor
For spaces with medium to high cooling needs
CO2 sensor
Room controller
Remote control
panel
Condensation
Sensor
Application
Regardless of the chosen layout, Halton Vario ensures
the best indoor climate conditions and secures the
lowest possible energy consumption without
compromising user comfort. Halton Rex chilled beams
system automatically maintains a room’s desired level
of comfort in terms of temperature and air quality while
ensuring maximum flexibility of the layout.
Operation
Halton Rex chilled beams uniquely combine air and
temperature controls for all load conditions.
When a space is unoccupied,
Halton Rex secures energy savings
by reducing the ventilation rate in
the room to a minimum.
When a space is occupied, Halton Rex
chilled beam automatically increases the
ventilation rate to a comfortable level and
regulates the temperature to the design
level for maximum user comfort.
In meeting spaces, the system functions
in occupied mode. Halton Rex beam
smart controls maintain temperature
and air quality at an optimum level
even in maximum load situations.
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Window
switch
Unit integrated
temperature
sensor
Cooling
valve
Heating
valve
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Halton all-air systems
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Name of the building: Pixel
Location: Nanterre (92) close to Paris
Surface: 18 000 m²
Architect: Atelier 234 Jean Mas
Environmental certification: BBC Building
(Low Consumption Building)
Investor: CARDIF
Developer: BNP Paribas Immobilier
Consulting engineer: SF2I
Contractor: Eiffage Thermie
Delivery of the building: 2013
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Rooms with the
Halton Vario all-air system
For spaces with low to medium cooling needs
Wall control panel
Halton Jaz active diffuser
with airflow control damper
Multi-sensor
Room controller
Application
With the Halton Jaz active diffuser system, excellent
conditions are maintained based on occupancy, carbon
dioxide, and temperature while ensuring maximum
flexibility of the layout. Smart controls measure the
conditions constantly and act upon changes in the load
of the space, ensuring minimum energy consumption.
The active diffusers can be combined with an air-water
system in high-load areas like perimeter zones. The
system is optimal for offices, meeting rooms, schools
etc.
Operation
The Halton Vario system controls the airflow rate
according to floor occupancy within a wide airflow range
(0-100%). The active diffuser creates an excellent indoor
climate in all conditions without creating draft. Since the
system is controlled based on occupancy, energy use is
also minimized.
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CO2 sensor
When a space is unoccupied, Halton
Jaz active diffuser secures energy
savings by reducing the ventilation
rate in the room to a minimum.
Remote control
panel
When a space is occupied, Halton
Jaz active diffuser automatically
increases the ventilation rate to a
comfortable level and controls the
temperature to the design level for
maximum user comfort.
In meeting spaces, the system
functions in occupied mode. Halton
Jaz diffuser smart controls maintain
temperature and air quality at an
optimum level even in maximum
load situations.
Window
switch
Unit integrated
temperature
sensor
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Zones with flexible ventilation
MDC
Supply
MDC
Exhaust
MSS
Flexible ventilation allows for full flexibility of your
building’s space. Airflow rates can be changed based
on layout demand to significantly reduce tenant
outfitting needs. Halton recommends flexible
ventilation based on constant pressure ductwork
zones with Halton Vario systems.
Compared to typical ductwork, this system requires
lower fan power and duct velocities, and is easy to
install and balance. Based on a Skanska Properties
study, flexible ventilation has a life cycle cost of just
70-80% compared to traditional ducting.
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Benefits
• More cost-efficient than traditional ducting over
building life cycle
• Full space flexibility as airflow rates can vary
based on demand
• More silent solution resulting in an excellent
acoustic environment
• Reduced commissioning costs due to easy
balancing of ductwork
• Simple design principle and easy installation with
same-size ducts
System parts
• Pressure sensor
• Inlet air damper, circular or rectangular
•O
utlet air damper, circular and rectangular
are also measured and controlled to
ensure the right conditions between
the indoor space and outdoor air. The
indoor environment is also managed for
humidity.
Operation
Reliable operation of Halton Vario all-air and
air-water systems is secured by the supply air
pressure control, which adapts the zone system
both to space layout changes and daily occupancy
variations. Supply and exhaust airflow rates
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Central system management
BUILDING
MANAGEMENT
SYSTEM
SYSTEM
Air Handling Unit
Halton Vario Optiomiser
HVO (master) for exhaust
Halton Vario Optiomiser
HVO (master) for supply
Communication
HVO (slave) for supply
HVO (slave) for exhaust
HVO (slave) for supply
HVO (slave) for exhaust
ZONE
Measurement
unit MSS or MSR
Zone damper
MDC or MDR
Zone damper
MDC or MDR
Rex chilled beam
Measurement
unit MSS or MSR
Zone damper
MDC or MDR
Rex chilled beam
Jaz Diffuser
Rex chilled beam
Jaz Diffuser
Zone damper
MDC or MDR
Measurement
unit MSS or MSR
Zone damper
MDC or MDR
Jaz Diffuser
Rex chilled beam
Jaz Diffuser
Rex chilled beam
Zone damper
MDC or MDR
Jaz Diffuser
Rex chilled beam
AIR-WATER
Exhaust grille
ALL-AIR
HYBRID
BUS Communication
ROOM
System parts
• Halton HVO control of ductwork
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HVO (slave) for exhaust
BUS Communication
Operation
The Halton Vario Optimizer (HVO) monitors the
opening of each zone damper and detects the most
open damper. If this damper has an unnecessarily
high pressure drop, the HVO adjusts the Air Handling
Unit’s pressure level with the Trim and Response
Logic, leading to a lower pressure level in the entire
system. Zone dampers then adapt to the new system
pressure level and maintain proper conditions for room
devices like Halton Rex beams and active diffusers. If
the airflow demand increases, the HVO will shift the
fan pressure setpoint of the Air Handling Unit higher
in order to maintain favourable system operation
conditions.
HVO (slave) for supply
BUS Communication
Halton Vario systems achieve significant energy savings
by optimizing fan power based on zone requirements.
The Halton Vario Optimizer communicates with zone
pressure control dampers and maintains duct pressure
at as low a level as possible. Flexible ventilation
enables the use of low velocity Air Handling Units
which drive system lifecycle costs down even further.
Jaz Diffuser
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Halton — Enabling wellbeing in indoor environments
Halton is a family-owned company specializing in indoor
climate products and solutions and indoor environment
services. Halton’s aim is to create safe, comfortable, and
energy-efficient indoor environments with sustainable life
cycles.
Halton delivers solutions for applications ranging from
public and commercial buildings to healthcare, industrial,
commercial kitchen, and restaurant uses. The company is
also among the most esteemed providers of indoor climate
solutions for marine and offshore applications. Halton’s
areas of expertise and product ranges cover air diffusion,
airflow management, fire safety, kitchen ventilation, air
filtration, laboratory ventilation, and indoor environment
management. Halton has operations in 30 countries.
www.halton.com