Dover Hillphoenix ONRZ, Installation & Operation Manual

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PEG HOOKS N1
When a case merchandiser’s 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. 1). When the shelves are present, air
flows from the top and back, forming a protective barrier against the ambient store air (Fig. 2).
When peg bars are present, air falls through openings between packages and fails to maintain a protective barrier (Fig.
3). When the bars are fully stocked, the effect is minimized; however, product temperatures will not be optimal. Sweat-
ing 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. For proper set-up of a merchandiser with peg bars, install a solid baffle above each row of peg bars - ex-
cept for the bottom shelf - to maintain proper air flow and temperatures inside the case. Non-load-bearing solid air baffles
should run the same width as the peg bars.
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