Unitized MultiFamily Ventilation

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Unitized Multi-Family Ventilation
IAQ, Bath Kitchen Fans
Innovation in Ventilation Improving the Quality
of Indoor Environments

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Unitized Multifamily Venting(Venting each
dwelling independently)

• Common in Low-Rise Apartments and High-rise
  Condominiums
  
• Primarily intermittent bath and kitchen fans
• Usually does not address IAQ

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Challenges of Unitized Venting Multi-family
Buildings

• Fan Locations and Ducting
• Venting Penetrations
• Traditional Fan Performance
• Airflow Control and Occupant Operation
• Maintenance

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Challenges of Unitized Venting Multi-family
Buildings

• Locating individual fans and vent ducts always
  presents a challenge.

• Multiple Penetrations can be costly and unsightly.

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Challenges of Unitized Venting Multi-family
Buildings
Lengthy duct runs make installation difficult, an
d
dramatically affect airflow performance.
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Building Codes

• Most residential building codes for ventilation
  are based on ASHRAE standard 62.1 for high rise
  buildings (over 3 floors) and 62.2 for low rise
  buildings.

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Challenges of Venting -TRADITIONAL SYSTEMS

• Intermittent Ceiling Mounted Bath Fans

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Traditional Bath Fans Performance Limitations

• Low airflows in most installations\

• Noiseresulting in non-use

LOW AIRFLOW
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Traditional Bath Fans Low Airflow Performance

• Pressure Drop from Long Duct Runs

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Traditional Bath Fans Low Airflow Performance

• Pressure Drop from Duct Terminations and Elbows

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Traditional Bath Fans Low Airflow Performance
Usually meansLower Airflow than expected
20 CFM
50 CFM
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Traditional Bath Fans Low Airflow Performance

• Typical Pressure Drop Example 50 cfm fan, 25
  ft. smooth 3 vent duct, two 90 deg. Elbows,
  wall cap.
  
• Duct .193 Ps
• Wall cap .095 Ps
• Elbows (Total) .156 PS
• TOTAL PRESSURE DROP .444 Ps
• What actual airflow delivery can you expect?

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Traditional Bath Fans Low Airflow Performance
26 cfm
50 of the required flow!
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Traditional Bath Fans Noise Prevents Proper Use

• HVI independent studies have determined that,
  anything above 1.5 sones for intermittent, and
  1.0 sone for continuous operating fans is
  considered objectionable to people.
• Over 90 of the fans sold in 2001 delivered 4.0
  to 6.5 sones 3 TO 4 TIMES TOO LOUD!!!

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Traditional Bath Fans Maintenance Issues

• What about maintenance?
• Cleaning and replacement?

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The American ALDES Solution

• How To Address the Challenges of
• Airflow through long duct runs
• Noise
• Occupant Operation
• Minimize outside penetrations
• Maintenance

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The American ALDES Solution

• VentZone
• System
• Bath,Kitchen and/or IAQ systems
• Single ENERGY STAR rated fan
• Zone controlled
• Self balancing
• Pressure independent
• Continuous duty rated

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The American ALDES Solution

• Remote installation ensures quiet operation and
  proper occupant use.
  
• In most installations, the sound levels in the
  space are between 0 and .75 sones.

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The American ALDES Solution

• Penetrations to the outside or central exhaust
  shaft are minimized
  

Example 1 Two baths One w.c.
Single Outlet
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The American ALDES Solution

• Our Fans -Maintenance free operation

External Rotor Motor Totally sealed Ideal for
moist environments
Backward Inclined Impeller Resists loading
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The American ALDES Solution

• Solutions to complete any installation.

Wall/Roof Caps
Inline Fans/Dryer Boosters
Timers and Controls
Zone Control Devices
ENERGY STAR Fans
ERVs and HRVs
Sleeves, Boxes Grills
Backdraft dampers
Make-up Air Solutions
Constant Airflow Regulators
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For More Information Please Visit Our Website at
www.AmericanAldes.com Or Call Our Factory Head
quarters at 800.255.7749 Or Reach Scott Madden,
Director of Business Development
smadden_at_aldes-us.com