Hillphoenix OHMA-NRG, Installation & Operation Manual

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peg hooK information
FIG. 1 illustrates the air fl ow in a multi-deck display merchandiser with shelves. Air fl ows from the top and back, forming
a protective barrier against the ambient store air. FIG. 2 illustrates the air fl ow in the same case when the shelves are
removed. Air drifts back to the rear duct and swirls around, thus breaking the protective air envelope and allowing case
air to mix with ambient store air.
FIG. 3 illustrates the air fl ow in a display merchandiser with peg bars. The air falls through openings between packages
and fails to maintain a protective barrier. When the bars are fully stocked, the effect is minimized; however, product tem-
peratures will not be optimal. Sweating may be noticed on the top duct panel above the bars and frost will build up on the
coil faster, requiring more frequent defrost cycles. FIG. 4 illustrates the proper set-up for a display merchandiser with peg
bars. The addition of a solid baffl e above each row of peg bars - except for the bottom shelf - maintains proper air fl ow
and temperatures in the case. Non load-bearing solid air baffl es should run the same width as the peg bars.
Coil
plenum
Coil
plenum
1 2
Coil
plenum
Coil
plenum
3 4
G1
• P111801H