Application Note

Fluke Corporation
PO Box 9090, Everett, WA 98206 U.S.A.
Fluke Europe B.V.
PO Box 1186, 5602 BD
Eindhoven, The Netherlands
For more information call:
In the U.S.A. [phone] or
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In Europe/M-East/Africa [phone] or
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In Canada (800)-36-FLUKE or
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From other countries [phone] or
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Web access: http://www.fluke.com
©2014 Fluke Corporation.
Specifications subject to change without notice.
Printed in U.S.A. 10/2014 6003588a_en
Modification of this document is not permitted
without written permission from Fluke Corporation.
Fluke. Keeping your world
up and running.
®
3 Fluke Corporation Twenty ways the Fluke 62 MAX+ Infrared Thermometer can save you energy and time
13. Safe checking of
ceiling-mount equipment
A large amount of HVAC equip-
ment is mounted above the floor
in hard to reach areas, which
can cause a safety hazard. You
can use the Fluke 62 MAX+ IR
Thermometer to easily check the
temperature without exposing
yourself to any safety issues.
14. Check operation of
VAV box hot water reheat
Variable air volume (VAV)
systems are the most common
type of HVAC system installed
today. The VAV terminal boxes
control airflow and temperature
in the building spaces. Many
VAV terminal boxes are located
at the perimeter of the building
and include hot water reheat
coils. These reheat coils have
automatic valves. You can use the
Fluke 62 MAX+ IR Thermometer
to check the discharge air tem-
perature of the VAV box as well
as the reheat coil inlet and outlet
water temperatures. These tem-
peratures will indicate whether
the hot water valve is opening
and closing properly.
15. Check return air
temperatures
In addition to checking the
supply air temperatures of a
terminal or air handling unit,
it is often necessary to check
the temperature of the return
air from the room. The Fluke
62 MAX+ IR Thermometer is an
ideal instrument to use to check
the return air temperature.
16. Check electric
heating coil operation
Many buildings use air handling
or terminal units with electric
heating elements. These include
heat pumps, VAV terminal boxes,
and air handling units. If the
controls are not functioning
properly, a large energy waste
can occur which can lead to very
high energy bills. You can use
the Fluke 62 MAX+ IR Ther-
mometer to check the correct
temperature set points of the
electric heating coils.
17. Check compressor
temperature
Air conditioning and refrigera-
tion compressor failures are a
source of very high repair bills.
They also cause product loss and
system downtime. This can be
very expensive. You can use the
Fluke 62 MAX+ IR Thermometer
to check the compressor tem-
peratures and detect problems
before they lead to expensive
failures.
18. Check cooler and
freezer temperatures
It is absolutely critical that
products in coolers and freezers
are maintained at the correct
temperature. The Fluke 62 MAX+
IR Thermometer can quickly
show that the products in a
cooler or freezer are stored under
the proper conditions. Since you
can point the Fluke 62 MAX+
IR Thermometer at any products
in the refrigerated space, it is
superior to simple fixed loca-
tion thermometers. And at the
same time you check the product
temperatures, you can check the
evaporator coil and discharge air
temperatures as well.
19. Check for defrost
temperatures
Ice build-up on low tempera-
ture coils will reduce equipment
efficiency. Defrost systems are
provided to melt the ice when
needed. If the defrost system
operates improperly, the refriger-
ation system may ice up and fail,
which will cause product loss.
You can easily check the defrost
system operation with the Fluke
62 MAX+ IR Thermometer.
20. Check refrigerant coil
surface temperatures and
condenser temperatures
Taking the temperature of condensate as it
goes into the drain.
Identifying the temperature of ceiling-mount
equipment.
Another use of the Fluke 62
MAX+ IR Thermometer is to check
the actual coil temperatures of
refrigeration system evaporators
and condensers. These tem-
peratures indicate proper system
operation and efficiency. Improper
coil temperatures can help
identify problems while they are
small and easily correctable.
Many possible high-impact
uses of the Fluke 62 MAX+ IR
Thermometer exist, in addition to
the examples given here. Usu-
ally when I get to the job site, I
just start pointing and using the
Fluke 62 MAX+ IR thermometer
right away!