Application Note

5. HVAC systems
Heating, ventilation and air conditioning (HVAC) systems
are usually some of the biggest energy consumers within
commercial and industrial facilities.
What to scan:
• Ductwork and registers. Check for duct leakage and
improper/inadequate installation.
• Fans and blowers. Thermal imagers can help identify
overheated bearings and components, and misalignment in
couplings between the motor and fan.
• Electrical connections. Look for loose or corroded
connections, which increase electrical resistance and reduce
energy efficiency.
• Compressors and coils. If coils are blocked or cooling fins
are clogged, improper airflow and heat exchange can take
place, reducing system efficiency and component lifespan.
6. Electrical systems
Many people don’t realize electrical systems can actually
waste money. As components degrade and resistance
increases, energy losses mount.
What to scan:
• Distribution panels. Check for unbalance in circuits and
loose, corroded connections at breakers, contacts, fuse clips,
buss work, etc.
• Transformers. If the temperature of one electrical leg on a
transformer is significantly hotter than the others, that leg
may be failing.
• Lighting control circuits. Check all wiring splices and
connections at fuses, switches, panels and fixtures.
Fluke Corporation
PO Box 9090, Everett, WA 98206 U.S.A.
Fluke Europe B.V.
PO Box 1186, 5602 BD
Eindhoven, The Netherlands
Modification of this document is not
permitted without written permission
from Fluke Corporation.
For more information call:
In the U.S.A. [phone] or
Fax [phone]
In Europe/M-East/Africa [phone] or
Fax [phone]
In Canada (800)-36-FLUKE or
Fax [phone]
From other countries [phone] or
Fax [phone]
Web access: http://www.fluke.com
©2013 Fluke Corporation.
Specifications subject to change without notification. 3/2013
4332477A_EN
Pro tip
Buildings with constant-air-volume
systems often have air leaks that
can cause as much as 33 % energy
loss. Considerable savings can be
achieved with duct-sealing and
insulation remedies.
Pro tip
Buildings with constant-air-volume
systems often have air leaks that
can cause as much as 33 % energy
loss. Considerable savings can be
achieved with duct-sealing and
insulation remedies.