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Industry News
Is Stress a Factor in Sick Building Syndrome?
LONDON—Sick building syndrome may be related to stress, according
to studies in London and Singapore. The UK researchers surveyed
civil servants and found that high job demands and low levels
of support were linked with high rates of symptoms such as headaches,
nausea, respiratory problems, and unusual tiredness. They found
that dry air and hot offices increased symptoms slightly, but
the more important factor was stress. Researchers in Singapore
found more symptoms of sick building syndrome among workers who
reported high levels of physical and mental stress.
Read more
2007 AHR Expo Expanding to Meet Exhibitor Demand
WESTPORT, Conn.—More than 1,200 companies have reserved space
for the 2007 AHR Expo in Dallas, and the show management is adding
more space to meet continuing exhibitor demand. Clay Stevens,
president of International Exposition Company, said the reserved
space in the Dallas Convention Center already fills the space
initially allocated for the 2007 event. He expects the 2007 AHR
Expo will be the largest AHR Expo held in the Southwest.
Read more
Evidence Linking Mold Exposure to Illness Lacking,
Say Researchers
BALTIMORE—Some of the blame attributed to mold exposure for
health problems is not supported by good medical evidence, researchers
say in an article in the Journal of Allergy and Clinical Immunology.
The researchers from John Hopkins University School of Medicine
reported that there is scientific evidence that ingesting large
quantities of mold from contaminated or spoiled food can lead
to serious illnesses, but there is no scientific evidence proving
that inhaling toxins from molds is harmful.
Read more
Lennox Industries Announces Price Increase
DALLAS—Lennox Industries has announced a price increase of
up to 4% on selected residential and light commercial products,
effective May 1.
ASHRAE News
ASHRAE Studies Impact of Ventilation on Health
ASHRAE is funding research on the effects of ventilation rates
on occupant health. A panel of medical and engineering professionals
will review existing research and literature on the effect of
ventilation on health in various types of buildings. The primary
focus will be on ventilation rates, but the researchers also will
study pollutant sources, source strength and pollutant concentrations.
Read more
Feature of the Week
Return Fans or Relief Fans: How to Choose
By John Kettler, P.E., Life Member ASHRAE
This article compares the return fans and
power exhaust (relief) fans in terms of energy consumption and control
requirements. The article reviews calculations and power consumption
as well as control considerations for several select systems.
After April 12, access to the article from this eNewsletter will
no longer be available. It will remain available for free download
by Members and for purchase by nonmembers in the ASHRAE Journal section of the ashrae.org bookstore.
AHR Expo Innovation Awards Honorable Mention Recipients
Building Automation Category: VAV Controllers
Brossard, QC, Canada—Distech Controls’ VAV Controllers with
Wireless Communication include a dual-duct option, wireless communication
with RF/battery-less temperature sensors, and a RF/battery-less
light switch.
Read
more
Product News
Commercial/Industrial VFDs From Siemens Building Technologies
BUFFALO GROVE, Ill.—Siemens Building Technologies offers the
SED2 line of variable frequency drives that save energy in commercial
and industrial building applications by reducing power consumption
to electric pumps and fan motors. Models feature built-in PID
for fast and accurate pressure control, as well as pump staging
for open loop, constant pressure, constant-flow applications.
For more information, visit Siemens Building Technologies online (SED2 product description).
Unit Ventilators From McQuay
MINNEAPOLIS—The new ceiling-mounted AAF ®-HermanNelson ®
Model AH unit ventilator from McQuay ® uses the company’s
GentleFlo™ airflow technology and reduced fan motor speeds to
produce low sound levels. It also features a larger coil size
that increases cooling capacity. This allows cooling requirements
to be satisfied with a smaller unit.
For more information, visit McQuay online (unit ventilator product description).
Motorized Impeller From Continental Fan
BUFFALO, N.Y.—Continental Fan offers the RCM motorized impeller,
designed for applications where space is limited. It combines
the motor and impeller to minimize space requirements and provide
vibration-free operation. Both the motor and impeller are located
directly in the air stream, where the impeller acts as a rotating
heat sink.
For more information, visit Continental Fan online (RCM product description).
Subscription Management
American Society of Heating, Refrigerating and
Air-Conditioning Engineers (ASHRAE) is an international membership
organization founded to advance the arts and sciences of heating,
ventilation, air conditioning, refrigeration and related issues.
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