Appendices; Appendix A. - Temperature Guidelines; Appendix B. - Application Recommendations - Hussmann CR3-F Installation And Operation Manual

Rev. 0707
APPENDIX A. – Temperature Guidelines
The refrigerators should be operated according to
Hussmann's published engineering specifi cations
for entering air temperatures for specifi c equipment
applications. Table 1 shows the typical temperature
of the air entering the food zone one hour before the
start of defrost and one hour after defrost for various
categories of refrigerators. Refer to Appendix C for
Field Evaluation Guidelines.
TABLE 1
TYPE OF
REFRIGERATOR
I. OPEN DISPLAY
A. Non frozen:
1) Meat
2) Dairy/Deli
3) Produce
a. Processed
b. Unprocessed
B. Frozen
C. Ice Cream
II. CLOSED DISPLAY
A. Non frozen:
1) Meat
2) Dairy/Deli
3) Produce
a. Processed
b. Unprocessed
B. Frozen
C. Ice Cream
Single Deck Multi Deck
I. Open Display Styles

Appendices

TYPICAL ENTERING
AIR TEMPERATURE
26°F
28°F
36°F
45°F
0°F
-5°F
28°F
30°F
36°F
45°F
0°F
-5°F
ServiceCase Reach-In
II. Closed Display Styles
APPENDIX B. – Application
Recommendations
1.0 Temperature performance is critical for
controlling bacteria growth. Therefore, the
following recommendations are included
in the standard. They are based on con-
fi rmed fi eld experience over many years.
1.1 The installer is responsible for following
the installation instructions and recom-
mendations provided by Hussmann for
the installation of each individual type
refrigerator.
1.2 Refrigeration piping should be sized ac-
cording to Hussmann's equipment recom-
mendations and installed in accordance
with normal refrigeration practices. Refrig-
eration piping should be insulated accord-
ing to Hussmann's recommendations.
1.3 A clogged waste outlet blocks refrigera-
tion. The installer is responsible for the
proper installation of the system which
dispenses condensate waste through an
air gap into the building indirect waste
system.
1.4 The installer should perform a complete
start-up evaluation prior to the loading of
food into the refrigerator, which includes
such items as:
a) Initial temperature performance, Coils
should be properly fed with a refriger-
ant according to Hussmann's recom-
mendations.
b) Observation of outside infl uences
such as drafts, radiant heating from
the ceiling and from lamps. Such infl u-
ence should be properly corrected or
compensated for.
c) At the same time, checks should be
made of the store dry-bulb and wet-
bulb temperatures to ascertain that
they are within the limits prescribed by
Hussmann.
d) Complete start-up procedures should
include checking through a defrost
to make certain of its adequate fre-
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