Installation & Operation • 9
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.
Critical Area
45°
If present, remove
any tape or
weather stripping
from the case
Critical Area
Critical Area: Apply
caulk along center
of metal flanges
Apply caulk across
back panel seams
DR-392-D
FIGURE 10: Case Joint Caulking (Butyl*)
* 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, and the bottom of the case where indicated by the dashed lines in the
drawing. Caulk must be continuous with no gaps. Always apply 2 beads where specified.
2. After cases are joined and tightened, caulk the top and back exterior seams, if accessible, to ensure a tight seal.
3.
for information about NSF compliance sealing with silicone sealant.