8
top and the ceiling with an NSF listed sealant and ends of open hanger channels must
be sealed to prevent accumulation of foreign matter.
When locating unit coolers in a cooler or freezer, refer to Figure 1-2 for guidelines.
Unit Cooler Installation
Most evaporators can be mounted with rod hangers, lag screws, or bolts. Use 5/16"
bolt and washers or rod for up to 250 pounds, 3/8" for up to 600 pounds and
5/8" for over 600 pounds. Care should be taken to mount the units level so that
condensate drains properly. Adequate support must be provided to hold the weight of
the unit.
When using rod hangers, allow adequate space between the top of the unit and the
ceiling for cleaning. To comply with NSF Standard 7, the area above the unit cooler
must be sealed or exposed in such a way to facilitate hand cleaning without the use
of tools. When lagging or bolting the unit flush to the ceiling, seal the joint between the
Figure 1. Large Coolers and Freezers Placement.
Where one wall evaporator mounting is
satisfactory.
Elevation view of glass display door cooler or
freezer. Be sure air discharge blows above, not
directly at doors. Provide baffle if door extends
above blower level.
Baffled Unit
Cooler or Freezer with Glass Display
Doors
Glass
Display
Door
Baffle
NOTE: Always avoid placement of Unit Coolers
directly above doors and door openings.
Cooler or Freezers where one wall will not
accommodate all required evaporators
or where air throw distance must be
considered.
Allow sufficient space between rear
of Unit Cooler and wall to permit free
return of air.
Unit Cooler Installation
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