Hussmann HEDN, Инструкция по установке и эксплуатации

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IGHT-HEDN, HEDN COMBO, HEDW-0508
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appendices
1.2 Refrigeration piping should be sized according to
the equipment manufacturer’s recommendations
and installed in accordance with normal refrigeration
practices. Refrigeration piping should be insulated
according to Hussmann’s recommendations.
1.3 A clogged waste outlet blocks refrigeration. 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 refrigerant according to
manufacturer’s recommendations.
b) Observation of outside influences such
as drafts, radiant heating from the ceiling
and from lamps. Such influence 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 frequency and length
without substantially exceeding the actual
needs. This should include checking the
electrical or refrigerant circuits to make sure
that defrosts are correctly programmed
for all the refrigerators connected to each
refrigeration system.
e) Recording instruments should be used to
check performance.
Hot
1.0 The installer should perform a complete start-up
evaluation prior to the loading of food into the hot
food case, which includes such items as:
a) Initial temperature performance, Griddles and Hot
Wells.
b) Observation of outside influences such as drafts,
radiant heating from the ceiling and from lamps.
Such influence should be properly corrected or
compensated for.
c) Complete start-up procedures should include:
1. Heat / display lamps are lighting
2. Indicator lamps on control panel(s) are working
3. Auto-fill is functioning properly (Service cases)
4. Hot Griddles are functioning.
appendix a - Temperature Guidelines - Refrigerated
The refrigerators should be operated according to the
manufacturer’s published engineering specifications for
entering air temperatures for specific 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
Typical Entering
air Temperature
I. OPEN DISPLAY
A. Non frozen:
1) Meat 28°F
2) Dairy/Deli 32°F
3) Produce
a. Processed 36°F
b. Unprocessed 45°F
B. Frozen 0°F
C. Ice Cream -5°F
II. CLOSED DISPLAY
A. Non frozen:
1) Meat 34°F
2) Dairy/Deli 34°F
3) Produce
a. Processed 36°F
b. Unprocessed 45°F
B. Frozen 0°F
C. Ice Cream -5°F
Single Deck Multi Deck Service Case Reach-In
I. Open Display Styles II. Closed Display Styles
Hot
1.0 Hot cases are tested to maintain all hot food at
140° - 150°F. These cases are not designed to
heat up or cook food. It is the user’s responsibility
to stock the hot food cases immediately after the
cooking of the food with a pulp temperature of at
least 150° to 160°F.
appendix B - application Recommendations -
Refrigerated
1.0 Temperature performance is critical for controlling
bacteria growth. Therefore, the following
recommendations are included in the standard.
They are based on confirmed field experience
over many years.
1.1 The installer is responsible for following the
installation instructions and recommendations
provided by Hussmann for the installation of each
individual type refrigerator.