Installation & Operation • 13
INSTALLATION & OpERATION
Before joining the cases, remove all packaging material on the display case, including any spacer blocks inside the bases. Repeat
caulking between each case in the lineup.
Top View
Mullion
Mullion
Critical Area: Apply caulk
to these mullion surfaces
Caulking
Back-to-Back
Cases
Critical Area:
Caulk around
hole and opening
If present, remove
any tape or
weather stripping
from the case
45°
Apply caulk
across this
horizontal seam
F
F
Critical Area: Apply
caulk along center
of metal flanges
Apply caulk across
back panel seams
DR-296-B
* DO nOT APPLY BuTYL CAuLK On SEAFOOD OR BAKERY CASES. Butyl caulk never cures and emits vapors that affect seafood and
bakery products. Recommended alternative caulk: Polyurethane-based (full curing, durable, moisture-activated) or silicone-based (full curing).
IT IS CRITICAL TO FOLLOW THIS PROCEDURE TO ENSURE CASES ARE PROPERLY SEALED.
SURFACES TO BE CAULKED MUST BE CLEAN, DRY, FREE OF TAPE/ADHESIVE, AND FREE OF FROST (ABOVE 40ºF).
Note: Apply Butyl caulk to only one case—not both cases. The caulk will spread out when the cases are pushed together, and
excessive caulk may squeeze out of the joint. Wipe away any caulk that squeezes out. Butyl caulk will not mix with silicone sealant
(used for NSF sealing), which will affect adhesion of both.
1. Apply 3/8" thick beads of Butyl caulk* along the ceiling, rear wall, bottom of the case, and the mullion where indicated by the dashed lines
in the drawing. Caulk must be continuous with no gaps. Always apply 2 beads where specified. Caulk must be applied around a plexiglass
divider and not onto the divider itself, if applicable.
2. After cases are joined and tightened, caulk the top and back exterior seams, if accessible, to ensure a tight seal.
3. Back-to-Back (BB models) share the rear wall. Apply 2 beads of caulk along the shared rear wall as shown in DETAIL E.
4.
for information about nSF compliance sealing with silicone sealant.
FIGURE 16: Case Joint Caulking (Butyl*)
