Plumbing; Waste Outlet And P-Trap; Humidification; Joint Trim - Hussmann DSF Installation And Operation Manual

and drain lines. See respective chapters for more
detailed instructions.
9. After cases have been leveled and refrigeration,
electrical, and waste piping work completed, install
the splashguards. (see instructions in the "Finishing
Touches" section of this booklet).
CORNER WEDGES
Corner wedges are attached via front and rear camlocks.
Use a 7mm allen wrench to turn the locks. Do not over-
tighten! Join the top by using a joint bracket (included in
joint kit) with 3/8" bolts.

WASTE OUTLET AND P-TRAP

The waste outlet is located off the center of the case on
one side allowing drip piping to be run lengthwise under
the fixture.
A 1-1/2" P-trap and threaded adapter are supplied with
each fixture. The P-trap must be installed to prevent air
leakage and insect entrance into the fixture.
NOTE: PVC-DWV solvent cement is recommended.
Follow the manufacturer's instructions.
INSTALLING CONDENSATE DRAIN
Poorly or improperly installed condensate drains can se-
riously interfere with the operation of this refrigerator,
and result in costly maintenance and product losses. Please
follow the recommendations listed below when installing
condensate drains to insure a proper installation:
1. Never use pipe for condensate drains smaller than
the nominal diameter of the pipe or P-trap supplied
with the case.
2. When connecting condensate drains, the P-trap
must be used as part of the condensate drain to
prevent air leakage or insect entrance. Store plumb-
ing system floor drains should be at least 14" off the
center of the case to allow use of the P-trap pipe
GENERAL DESCRIPTION
One contributor to the spoilage of fresh meats is dehy-
dration, which causes loss in weight and volume (shrink-
age) and product discoloration. As the refrigeration sys-
tem removes heat from the case, it also removes critical
moisture from the air, and any unwrapped products in the
case. The Humidity System replaces the moisture in the
air, in order to compensate for the moisture taken by the
refrigeration system, and disposed of down the drain line.
The system is built into the discharge plenum, and mixes
moisture laden air with refrigerated air before the air is
passed through - and around the product.
Installation (cont.)

JOINT TRIM

After cases have been leveled and joined, and refrigera-
tion, electrical, and wasted piping work completed, install
the splashguards. Fasten along the top edge, or center, with
#10 X 3/3" sheet metal screws.
D
O

Plumbing

section. Never use two water seals in series in any
one line. Double P-traps in series will cause a lock
and prevent draining.
3. Always provide as much down hill slope ("fall") as
possible; 1/8" per foot is the preferred minimum.
PVC pipe, when used, must be supported to main-
tain the 1/8" pitch and to prevent warping.
4. Avoid long runs of condensate drains. Long runs
make it impossible to provide the "fall" necessary for
good drainage.
5. Provide a suitable air break between the flood rim of
the floor drain and outlet of condensate drain. 1" is
ideal.
6. Prevent condensate drains from freezing:
a. Do not install condensate drains in contact with
non-insulated suction lines. Suction lines should be
insulated with a nonabsorbent insulation material
such as Armstrong's Armaflex.
b. Where condensate drains are located in dead air
spaces (between refrigerators or between a
refrigerator and a wall), provide means to prevent
freezing. The water seal should be insulated to
prevent condensation.

Humidification

The system is constructed almost entirely of PVC pipe,
and uses air that is subcooled to approximately the same
temperature as the case. The sub-cooling of air inhibits
the formation of growth found to be a problem in other
humidification systems. Maintenance is almost unneces-
sary if you follow a few simple rules:
1. Keep the case clean.
2. Keep the water filter clean, and change it every six
to twelve months or sooner, depending on the
kind of water found in your area.
3. Flush the header every six (6) months, by loosen-
ing the connecting "L", then removing it from the
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OT EAL OINT RIM
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