ASHRAE Journal - ACMA Supplement - Fall 2013 - 2

Choosing the Right Road
By Wade Smith, P.E., Executive Director, AMCA International

Lewis Carroll, who wrote Alice
in Wonderland, once commented,
“If you don’t know where you are
going, any road will get you there.”
That’s why it’s so important for HVAC industry players to
become aware of the earthshaking changes impacting the air
systems industry—driven by concerns for air quality, fire-life
safety, and energy efficiency.
Your company faces a new set of alternatives, because some
of the old familiar routes will be blocked. Which new road will
you choose? Of course, that depends on where you want to go.
No longer can building operators reduce energy by closing
the outside air intake. New refrigerant and water-based systems
must be augmented with ducted outside air—ventilation cannot
be overlooked. Energy efficiency concerns dictate consideration
of airside economizers, now mandated in some codes down to
5 tons. In the newest version of California’s commercial energy
code, Title 24, outside air and return and exhaust dampers must
be third-party certified for low leakage rates.
Air systems also protect lives when fires happen, by pressurizing escape routes with life-giving fresh air, starving fires
of oxygen, and minimizing the spread of deadly smoke and
fumes. Fires destroy property, but smoke kills; refrigerant and
water-based systems cannot address this critical issue.
Fan efficiency grades must exceed 67 in the 2013 version of

2

Fa l l 2 0 1 3

ASHRAE 90.1 and have been proposed for the 2015 International
Energy Conservation Code. Fans must be selected within 15%
of peak efficiency. Other roads will be blocked by regulations.
Variable speed controls will be reconsidered in many fan applications that have traditionally been constant volume. Ducted
fans can and should be selected based on total pressure, not static
pressure, and duct systems can and should be designed to exploit
static regain of velocity pressure.
These are new approaches—roads less traveled for sure. The
question is, Where do you want to go?
If you want to optimize efficiency, air quality, comfort, productivity, and life safety, new, more efficient comprehensive air
system design approaches will serve you well. They use less
energy, provide more value, and cost less than alternatives that
have been getting more publicity.
Some roads look rough. Some are under construction. Some
are being blocked by regulation. All roads lead somewhere.
Which approach will you choose?
AMCA’s role is to provide a road map, aid in the construction
of new approaches, and assure design professionals and regulators that products perform as advertised. Our mission is to
advance the health, growth, and integrity of the air movement
and control industry—a mission that is more important when
industry professionals are required by regulation to wrestle with
decisions they never faced before.
Please enjoy the many articles we have prepared with this
mission in mind, and as you read, give careful consideration to
where YOU want to go.

a m c a I n t e r nat I o na l

inmotion

w w w. a m c a . o r g


http://WWW.AMCA.ORG

ASHRAE Journal - ACMA Supplement - Fall 2013

Table of Contents for the Digital Edition of ASHRAE Journal - ACMA Supplement - Fall 2013

Contents
ASHRAE Journal - ACMA Supplement - Fall 2013 - Cover1
ASHRAE Journal - ACMA Supplement - Fall 2013 - Cover2
ASHRAE Journal - ACMA Supplement - Fall 2013 - Contents
ASHRAE Journal - ACMA Supplement - Fall 2013 - 2
ASHRAE Journal - ACMA Supplement - Fall 2013 - 3
ASHRAE Journal - ACMA Supplement - Fall 2013 - 4
ASHRAE Journal - ACMA Supplement - Fall 2013 - 5
ASHRAE Journal - ACMA Supplement - Fall 2013 - 6
ASHRAE Journal - ACMA Supplement - Fall 2013 - 7
ASHRAE Journal - ACMA Supplement - Fall 2013 - 8
ASHRAE Journal - ACMA Supplement - Fall 2013 - 9
ASHRAE Journal - ACMA Supplement - Fall 2013 - 10
ASHRAE Journal - ACMA Supplement - Fall 2013 - 11
ASHRAE Journal - ACMA Supplement - Fall 2013 - 12
ASHRAE Journal - ACMA Supplement - Fall 2013 - 13
ASHRAE Journal - ACMA Supplement - Fall 2013 - 14
ASHRAE Journal - ACMA Supplement - Fall 2013 - 15
ASHRAE Journal - ACMA Supplement - Fall 2013 - 16
ASHRAE Journal - ACMA Supplement - Fall 2013 - 17
ASHRAE Journal - ACMA Supplement - Fall 2013 - 18
ASHRAE Journal - ACMA Supplement - Fall 2013 - 19
ASHRAE Journal - ACMA Supplement - Fall 2013 - 20
ASHRAE Journal - ACMA Supplement - Fall 2013 - 21
ASHRAE Journal - ACMA Supplement - Fall 2013 - 22
ASHRAE Journal - ACMA Supplement - Fall 2013 - 23
ASHRAE Journal - ACMA Supplement - Fall 2013 - 24
ASHRAE Journal - ACMA Supplement - Fall 2013 - 25
ASHRAE Journal - ACMA Supplement - Fall 2013 - 26
ASHRAE Journal - ACMA Supplement - Fall 2013 - 27
ASHRAE Journal - ACMA Supplement - Fall 2013 - 28
ASHRAE Journal - ACMA Supplement - Fall 2013 - Cover3
ASHRAE Journal - ACMA Supplement - Fall 2013 - Cover4
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_IOYTBC
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_SGAJJF
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_IGHYER
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_PDRKLS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2021november
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2021november_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_XCODFR
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_QSLFGO
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_ILKVNM
https://www.nxtbook.com/nxtbooks/ashrae/ashraemexico_2021
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_OPDJKD
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_VJKSRY
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_SDHUTC
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_JPPKRR
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_SDLTTH
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_CKLLES
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_SLDOX
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_HJETUK
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_OLUHGE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2020october
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2020october_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_ZERDGH
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_QVMNEO
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_RTPOKE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_BBATRE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_STUBMW
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_TPEMPE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_JNMKDS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_FBTTPA
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_WQMMNE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_TVBRYN
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_showguide2020
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_KTUZMA
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_ABEDGD
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201910
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201909
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2019septmeber_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2019september
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201908
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201907
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201906
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201905
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201904
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_2019april
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201903
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_2019march
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201902
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201901
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_showguide2019
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_2018december
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_2018november
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2018fall_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2018fall
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_2018october
https://www.nxtbook.com/nxtbooks/ashrae/ashraemexico_2018
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201810
https://www.nxtbook.com/nxtbooks/ashrae/ashraeinsights_201806
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201805
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201804
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201803
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201712
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201711
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201710
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2017fall_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2017fall
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201709
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201705
https://www.nxtbook.com/nxtbooks/ashrae/ashrae_meetinginsert_201610
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2016fall_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2016fall
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_acrexindia
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2015summer_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2015summer
https://www.nxtbook.com/nxtbooks/amca/2014summer2
https://www.nxtbook.com/nxtbooks/amca/2014summer
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_acma_2014summer
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201311
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201309
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_acmasupp_2013fall
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201305
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201303
https://www.nxtbook.com/nxtbooks/ashrae/pubcatalog_2013winter
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201211
https://www.nxtbook.com/nxtbooks/ashrae/achr_expo_mexico2012
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201209
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201208_v3
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201208_v2
https://www.nxtbook.com/nxtbooks/ashrae/pubcatalog_2012summer
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201205
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201203
https://www.nxtbook.com/nxtbooks/ashrae/pubcatalog_2012winter
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201111_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201109_v2
https://www.nxtbook.com/nxtbooks/ashrae/pubcatalog_2011summer
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201105
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201103
https://www.nxtbookmedia.com