and blower for industrial process ventilation, air pollution control
systems, combustion pressure
blowers, stainless steel blowers high temperature fan ventilators,
special OEM blowers
and fans. Sales of material conveying radial fan blowers, oven
high temperature fans, explosion proof spark resistant blowers, air
pollution control fans and
Blower, Chicago supplies replacement
forward curved blowers and wheels for forward curved blowers and fans
manufactured by Buffalo Blower - New York, Twin City Fan, Northern
Air Pollution Control Systems
Air Pollution Control Dust Collectors and Air Scrubbers are
to match specific service requirements of the customers. With
services handled by the most experienced professionals in the industry,
we ensure these Air Pollution Control Fan Systems offer the best
to our clients.
- Backed up by well defined business strategy support
- Mechanical engineering consulting services
- Extensive experience in the field of project
- Well written project support documentation
- Compliance with the most strict HVAC and other
industrial certification standards
Air Pollution Control Systems combine
air purification technology with extensive cutomer support to provide
best possible value to our customers. With the highest manufacturing
standards developed in accordance with the defined guidelines, these
systems are easy to install and can be made available in different
operational fan arrangements.
- Designed to provide effective air pollution control
in various industrial applications
- Unmatched product Quality and Reliability
- Designed to provide assistance in controlling as well
as measurements of atmospheric emissions / gases
- Cartridge dust collectors
- Baghouse filtration fan systems
- Cyclone separators
- Wet gas scrubbers
- Pneumatic conveying blower systems
- Industrial vacuum blowers
Stock of tubeaxial &
vaneaxial inline duct fans, blower and fan repair / balancing,
replacement centrifugal and axial fan blades, axial duct fans, aluminum
pressure blowers, FRP ventilators, dust collectors blowers fans, dust
collection fan ventilators, high temperature oven circulation fans,
explosion proof ventilatoprs, spark reistant fans and blowers, induce
& force draft fans, fan blower impellers.
Home | About Us
Products |Site Map | Contact Us
OEM industrial pressure blowers, commercial
fan ventilators, high-temperature industrial pressure blowers, Canadian Blower
pressure blowers. Distributors of Canadian Blower OEM industrial fans, roof and wall exhaust ventilators,
ventilating and air-conditioning fan blowers, pressure blower HVAC,
heating ventilation and air conditioning fans, process
and OEM pressure blowers, Canada Blower custom built fans, ventilators, dust collectors,
blowers, Canadian Blower oven circulation fans.
Many HVAC system designers
have realized the benefits of using Energy Recovery Ventilators (ERVs)
in commercial and institutional buildings. However, as with many newly
adopted technologies, questions of how best to apply this product are
being raised. One application issue in particular is whether to apply
an ERV as a stand alone unit on its own curb, or as a bolt-on accessory
to a rooftop air conditioning unit.
What is the difference between the two systems ? Although both systems
require an exhaust air stream as an energy source to pre-condition
outdoor air, the primary difference between the two systems is where
the exhaust air is taken from. The drawings at the right illustrate
this difference and help visualize how the ERVs tie into the HVAC
Some system designers may show a preference for the bolt-on ERV. This
may be because they perceive that the installation cost will be lower,
or they prefer having a single point of responsibility for the ERV /
rooftop fan unit.
In most cases, a system design that incorporates the stand alone ERV is
superior to the bolt-on system. The fundamental reasons for this can be
found by taking a look at more than just the outdoor air requirements.
If we consider both the outdoor air and exhaust air requirements of
commercial buildings, the advantages of the stand alone system become
The stand alone ERV system provides the most efficient method of
ventilating a building because it steals energy from air that has to be
exhausted anyway. The bolt-on ERV is not tied into the exhaust system
allowing the conditioned air to escape into the atmosphere. In many
commercial buildings, the exhaust air code required is roughly half of
the outdoor air volume. This means compared to the bolt-on ventilator
unit, the stand alone ERV can recover energy from twice as much air
leaving the building. The net impact is nearly double the effectiveness
for the stand alone system.
To illustrate this point, let's compare a stand alone unit to a bolt-on
system based upon the following:
• A commercial building requires 3,000 cfm of outdoor air based on
ASHRAE Standard 62.
• Based on codes, the minimum exhaust is 1,500 cfm from areas such as
restrooms and conference rooms.
• The building is to have a slight positive pressure and specifies
total exhaust/relief air of 2,700 cfm (10% positive).
• Outdoor air design point is 95db/78wb and room air is specified at
75db / 50% RH.
Combining outdoor air and exhaust air ventilation functions into a
single unit help drive an important practice in good HVAC
design-building ventilation balance. Traditionally, the outdoor air
needs and the exhaust air needs were calculated in separate thought
processes. The designer would specify the minimum outdoor air and
exhaust air volumes required by code, but would stop short of comparing
the totals to check the ventilation balance. Frequently, this led to
over pressurized buildings where doorways were transformed into wind
tunnels. In some cases, buildings became negatively pressurized and
infiltration made indoor climate control difficult.
Stand alone ERV systems inherently remind the HVAC engineer to perform
the building balance check because the outdoor air and exhaust air
volumes are located on the same equipment schedule. Additionally, the
outdoor air and exhaust air fans are interlocked within the ERV control
center. This translates into the following benefits of a stand alone
ERV compared to a bolt-on:
• The ventilation design is more likely to meet the engineer's
intentions, typically a slightly positive building pressure.
• System balancing after installation is far easier on a stand alone
system. Exhaust and outdoor air duct runs provide recommended locations
for airflow measurement. Determining exhaust and outdoor air volumes in
the bolt-on configuration is practically impossible.
• Exhaust fans and outdoor air fans are simultaneously energized so the
building operates as it was designed. Separate controls, interlocks,
and field coordination to maintain a balanced building are eliminated.
(Note: In some traditional systems without energy recovery, exhaust
fans were energized by occupancy sensors (i.e., motion detectors or
light switches) in an effort to save energy. These systems prohibited a
steady building balance and were counter-productive to proper
ventilation and indoor environment control.)
• Often, the system designer chooses to balance the air flow by
increasing the exhaust air volume from areas such as restrooms and
conference rooms. This results in fresher, better ventilated spaces and
improved comfort for occupants.
The installation cost of a stand alone ERV system is typically less
than the installation cost of a bolt-on ERV system.
• With the stand alone ERV, the ERV is performing the function of an
exhaust fan eliminating the need to purchase one:
• The exhaust ductwork is the same whether an exhaust fan or ERV is
• No additional roof or wall penetrations are needed for stand alone
ERVs. The same penetrations that are needed for the ERV were needed for
the exhaust fans as well. (In some cases, the ERV ventilators takes the
place of several exhaust fans and penetrations are reduced.)
• The stand alone system is more efficient. This may allow greater down
sizing of air conditioning equipment, lowering equipment cost.
• Ducting outdoor air from the ERV to the air conditioning unit is
minimal. In most cases, the outdoor air is simply ducted to a return
air trunk near the ERV. Additional duct work is usually less than 20
Another issue that is pertinent in a large portion of the U.S. is how
to incorporate ERVs and economizers into the same system. Since the
bolt-on ERV is mounted on the rooftop unit at the outdoor air intake,
an economizer is not able to be incorporated into a bolt-on ERV system.
This sacrifices the free cooling savings that many states require in
their energy standards.
Since stand alone ERVs are mounted on separate curbs and do not occupy
the outdoor air intake of the rooftop air conditioning unit, the
economizer section may still be easily used in conjunction with the ERV.
In summary, the stand alone ERV system has many advantages over the
bolt-on system. When considering the total ventilation system, the
stand alone ERV offers higher efficiencies, provides a more reliable
means of controlling ventilation, minimizes installation costs and
enables energy recovery and economizer technologies to be combined for
maximum energy savings.
ventilating.com fanblower.com highpressureblower.net
industrialblowerfan.com industrialfanblower.net industrialfanblower.com
industrialpressureblower.com tenderall.com chicagoblowercanada.com
cbblower.com buffaloblower.com buffalofan.com nis-co.com
canadianblower.com olegsystems.com canadablower.com abbblower.com
acmefan.net industrialblower.net fansandblowers.net americanblower.net
barryfan.com cincinnatifan.net canadafans.com barryfan.netpennbarry.net