A Balanced Approach

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A Balanced Approach

• Whole House Ventilation and IAQ
• Airflow Control
• Make-up Air Solutions
• Application by Geographic Region

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Ventilation and IAQ
Ventilation Options (spot)
IAQ Options (air changes)

• Do nothing and rely on windows and leakage to
  exhaust odors, contaminants and moisture.
• Use spot fans to intermittently ventilate
  bathrooms.
• Use central ventilation systems to intermittently
  ventilate bathrooms (and other trouble areas).

• Do nothing and rely on windows and leakage to
  change air in to/out of the home.
• Introduce fresh air into the home through a
  forced air system intermittently by way of a
  damper or HRV/ERV.
• Introduce fresh air into the home through a
  forced air system continuously by way of a High
  Efficiency AHU with DC motor control.

BAD
BAD
Ineffective (especially in tightly sealed energy
efficient homes)
Ineffective (especially in tightly sealed energy
efficient homes)
Loud, inefficient, multiple roof penetrations for
exhaust
Intermittent provision of fresh air, inefficient,
somewhat effective
OK
OK
BETTER
BETTER
Silent, efficient, effective, one roof
penetration for exhaust (but still need IAQ)
Continuous removal of air from common areas (but
still need bathroom exhaust)
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Ventilation and IAQ
Ventilation
IAQ
BEST Combine Ventilation and IAQ with a high
efficiency balanced continuous ventilation
system. Highly effective removal of stale air
from trouble areas, silent, efficient, increased
comfort and huge IAQ benefit from continuous low
volume air changes.
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Standalone Fans
- Multiple Exterior Penetrations -
Intermittent Ventilation -
Inefficient - Noisy
Ineffective for Indoor Air Quality.
Note There are some standalone fans imported
from China that are very quiet.
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Central Ventilation System
- One Exterior Penetration -
Powerful Efficient - Zone
Control - Silent
Using as little as 24 Watts!
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Continuous Ventilation System
- One Exterior Penetration -
Powerful Efficient - Zone
Control - Silent
Huge IAQ Benefit!
ASHRAE 62.2 LEED Compliant California Title 24
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IAQ vs. Energy Efficiency A Balanced
Approach Intermittent vs. Continuous Ventilation
100 cfm
Over Ventilate Energy Wasted
Over Ventilate Energy Wasted
ALDES Balanced Continuous Ventilation
50 cfm
Comfort Zone
Comfort Zone
No Ventilation Poor IAQ
No Ventilation Poor IAQ
0 cfm
Time
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HRV Connected to HVAC System
1. Conditioned air is removed from the common
areas of the home through the HVAC return.
2. The conditioned air is then used to treat the
incoming fresh air which is then distributed
through the home using the supply ducts.
AHU

• The bathrooms still need ventilation

• The air change is intermittent

• A separate control interlink must be added to
  meet ASHRAE 62.2

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Continuous Ventilation with Energy Recovery
Ventilator
Stale air (containing odors, mold causing
moisture and VOCs) is exhausted from the house!
Stale humid air is continuously removed from the
bathrooms and kitchen and then used to condition
the fresh air being brought in.
Fresh air is brought into the HRV/ERV from
outside the house
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Click Here for online video demonstration
1. Each Bathroom has a motorized damper with a
self balancing Continuous Airflow Regulator
integrated in the door of the damper. This
provides continuous low airflow in accordance
with ASHRAE 62.2 2. When someone flips the light
switch or timer, the damper door opens and boosts
the fan so that high volumes of stale air are
removed from the bathroom during use.
Continuous Ventilation with HRV and On Demand
Boost
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Airflow Control
The Constant Airflow Regulator CAR is the
simple solution to balanced airflow.

• Automatically Balances Airflow
• Pressure Independent
• Factory Calibrated
• Easy Field Adjustable
• Simple - Plug and Play Install
• Maintenance Free
• Controls Airflow for Exhaust, Supply
  Return Ducts
• Save Energy Increase Comfort
• Improve IAQ

One of the greatest HVAC innovations ever!
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Airflow Control
The Constant Airflow Regulator is able to hold a
very consistent airflow across a broad range of
air pressures.
As the air pressure increase the CAR is
engineered to restrict airflow to maintain a
consistent CFM.
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Makeup Air Solutions
Makeup air systems replace the amount of air
ventilated from a home with fresh air from
outdoors.

• The 3 most common controlled methods
• for introducing fresh air are
• Air Inlets
• HRV/ERV/Fan
• Make-up Air Through The HVAC

• ASHRAE 62.2 specifies the effective air change
  rate as
• Occupancy Rate ( bedrooms 1) 7.5 cfm/person
• Plus Area Rate 1 cfm/100 sq.ft.

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Makeup Air Solutions

• Air Inlets
• Negative pressure created by mechanical
  ventilation draws a controlled amount of fresh
  air into living spaces at the most beneficial
  locations.

• Compared to having air randomly leak into a
• home through uncontrolled cracks Air Inlets
• Improve Energy Efficiency
• Provide Cleaner Air (think about air coming
  under a door or through an attic/garage)
• Provide Greater Comfort by controlling airflow
  amounts

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Makeup Air Solutions

• Air Inlets Should Be Used With
• Continuous exhaust ventilation systems
• Radiant baseboard or floor heated spaces
• Energy efficient weatherized buildings

• Air Inlets Should Not Be Used With
• Forced-air heating (unless supply return are
  well balanced)
• When outside air is considered unhealthy

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Makeup Air Solutions Air Inlets
Airlets can effective introduce airflow at a
consistent rate.
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Makeup Air Solutions HRVs and ERVs
HRV/ERVs are an exceptional means for removing
stale humid air from trouble areas such as
bathrooms and using it to treat incoming fresh
air in tightly sealed energy efficient homes.
Heat Recovery Ventilator - Sensible heat recovery
in cooler climates, 60-90 Savings winter.
Energy Recovery Ventilator - Total
energy(enthalpy) recovery in warmer humid
climates, 50-60 Savings year round.
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Makeup Air Solutions BV150 Blending Ventilator
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Makeup Air Solutions Fresh Air Kits

• If forced air heating is available, the FCU or
  AHU can provide outside makeup air through a
  fresh air intake into the return duct.

• Precautions
• Air is only introduced while the FCU or AHU is
  running.
• There is a potential of negatively impacting the
  performance of or damaging the forced air system.

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Recommended IAQ Solutions
ASHRAE Climate Zones
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The American ALDES Solution

• Accessories 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
Headquarters at 800.255.7749 Or Reach Scott
Madden, Director of Business Development smadden_at_a
ldes-us.com