DuPont™ ISCEON®
REFRIGERANTS
CASE HISTORY
All Weather Refrigeration and Air Conditioning Ltd.
Background
Results
Jason Wight, HVAC contractor/owner of All Weather
Refrigeration and Air Conditioning Ltd., had learned that new
non-ozone depleting refrigerants were commercially available to
retrofit most existing refrigeration equipment. “I was interested
in a refrigerant that would be relatively easy to use, required no
modification to the equipment, and allowed me to continue using
mineral oil.” said Wight. Jason consulted with Refrigerative
Supply Limited, his local wholesaler. On the advice of
Refrigerative Supply representatives Len Montague and Steve
Hyde a recommendation was made to consider DuPont™
ISCEON® brand refrigerants. Upon researching the alternatives,
Jason determined DuPont™ ISCEON® refrigerants have the
properties he required, providing a versatile, quick switch
replacement refrigerant.
Jason stated, “I was pleased with the conversion, this was my
first retrofit with DuPont™ ISCEON® refrigerants and it was an
easy conversion. No mechanical changes to the equipment were
necessary, and no oil change was required. The retrofit
guidelines and technical literature available on the DuPont™
ISCEON® website were extremely helpful. DuPont™ ISCEON®
MO79 provided a straight forward, simple, and easy to use
retrofit refrigerant choice for the job.”
Project Details
Jason had been contacted by his customer, a manufacturer of
fresh baked, frozen bakery products for foodservice channels in
Canada, to service existing blast freezers and holding freezers
within their facility. It is critical that a bakery blast freezer
maintain a constant temperature in each cooling unit once the
freshly baked goods have been prepared. Jason and the
customer share common concerns for the environment. Upon
discussing the benefits of switching to non-ozone depleting
refrigerants with management, the bakery manufacturer readily
agreed to the retrofit. Jason chose DuPont™ ISCEON® MO79, a
suitable match to replace HP80 (R-402A) in their refrigeration
systems. DuPont™ ISCEON® MO79 is a non-ozone depleting
replacement for “R-502 type” HCFC-containing blends, e.g.,
HP80 (R-402A), HP81 (R-402B), R-408A, and R-502, primarily
used in low-temperature refrigeration systems. DuPont™
ISCEON® MO79 is compatible with traditional and new lubricants
and has a significantly lower operating discharge temperature,
eliminating the need for injection cooling.
Wight performed retrofits on two blast freezers; -20°C & -30°C, a
spiral blast freezer-35°C, and a holding freezer -20°C.
Conclusion
Feedback from the customer indicated it was an easy operation,
and has been a cost effective switch. There were no disruptions
to manufacturing operations during the conversion and the
equipment continues to run smoothly since the retrofit was
performed in 2008.
1.877.683.3566
refrigerants.dupont.com
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