TAB Journal Summer 2015 - 2

"

Fan filter units are a popular
choice of designers when
room air changes per hour
requirements are high...
What is often overlooked is

that fan filter units with certain
constant volume ECM fan
motors are not recommended
for use with all systems.
2

"

LIMITATIONS

of Fan Filter
Units
Terry Wright, TBE
Engineered Air Balance Co., Inc.

T

esting in hospitals, pharmacies and clean rooms
often requires testing and adjusting fan filter
units. Fan filter units consist of a fan, a motor
and a filtration system in a single unit which is used
to provide particle-free, laminar airflow to the room
or working space. They may have an optional ECM
fan motor available which is designed to adjust the fan
torque and speed to maintain a constant airflow and
compensate for filter loading. The fan filter units are
designed to be installed in a T-grid ceiling system or
sheetrock ceiling; 2x4 or 2x2 sizes are available.

TAB Journal Summer 2015



Table of Contents for the Digital Edition of TAB Journal Summer 2015

TAB Journal Summer 2015

https://www.nxtbook.com/ygsreprints/AABC/G118248AABC_Spring2020
https://www.nxtbook.com/ygsreprints/AABC/G116302AABC_Winter2020
https://www.nxtbook.com/ygsreprints/AABC/G114573_AABC_Fall2019
https://www.nxtbook.com/ygsreprints/AABC/G111085_tab_summer2019
https://www.nxtbook.com/ygsreprints/AABC/g108931_tab_spring2019
https://www.nxtbook.com/ygsreprints/AABC/g104992_tab_winter2019
https://www.nxtbook.com/ygsreprints/AABC/g100221_tab_fall2018
https://www.nxtbook.com/ygsreprints/AABC/g97743_tab_summer2018
https://www.nxtbook.com/ygsreprints/AABC/g94804_tab_spring2018
https://www.nxtbook.com/ygsreprints/AABC/g91043_tab_winter2018
https://www.nxtbook.com/ygsreprints/AABC/g86727_tab_fall2017
https://www.nxtbook.com/ygsreprints/AABC/g81312_tab_summer17
https://www.nxtbook.com/ygsreprints/AABC/g78003_tab_spring17
https://www.nxtbook.com/ygsreprints/AABC/g73432_tab_winter17
https://www.nxtbook.com/ygsreprints/AABC/g7002_tba_fall2016
https://www.nxtbook.com/ygsreprints/AABC/g65897_tab_summer2016
https://www.nxtbook.com/ygsreprints/AABC/g62758_tab_spring16
https://www.nxtbook.com/ygsreprints/AABC/tab_winter2016
https://www.nxtbook.com/ygsreprints/AABC/tab_fall2015
https://www.nxtbook.com/ygsreprints/AABC/tab_summer2015
https://www.nxtbook.com/ygsreprints/AABC/g50853_aabc_spring2015
https://www.nxtbook.com/ygsreprints/AABC/g48663_aabc_winter2015
https://www.nxtbook.com/ygsreprints/AABC/g46741_aabc_fall2014
https://www.nxtbook.com/ygsreprints/AABC/g43965_aabc_summer2014
https://www.nxtbook.com/ygsreprints/AABC/g42323_aabc_spring2014
https://www.nxtbook.com/ygsreprints/AABC/g40447_aabc_winter2014
https://www.nxtbook.com/ygsreprints/AABC/g38793_aabc_fall2013
https://www.nxtbook.com/ygsreprints/AABC/g36202_aabc_summer2013
https://www.nxtbook.com/ygsreprints/AABC/g34728_aabc_tabspring2013
https://www.nxtbook.com/ygsreprints/AABC/g32884_aabc_tab-winter2013
https://www.nxtbook.com/ygsreprints/AABC/g30873_aabc_tabjournal_fall2012
https://www.nxtbook.com/ygsreprints/AABC/g28877_aabc_tabjournal_summer2012_2
https://www.nxtbook.com/ygsreprints/AABC/g25452aabc_tabspring12
https://www.nxtbook.com/ygsreprints/AABC/g23327aabc_fall_2011
https://www.nxtbook.com/ygsreprints/AABC/g21694aabc_summer11_final
https://www.nxtbook.com/ygsreprints/AABC/g19912nxtbk
https://www.nxtbook.com/ygsreprints/AABC/g19105_aabc_tabjournalwinter11
https://www.nxtbook.com/ygsreprints/AABC/AABC/p17871_aabc_fall10
https://www.nxtbook.com/ygsreprints/AABC/g16041aabc_tabjournal
https://www.nxtbookmedia.com