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P/N 428668A
WASTE OUTLET AND WATER SEAL
The waste outlet is located in front of the fan
plenum 6 ft (1829 mm) from the left-hand end of
the merchandiser (facing case front). A water seal
is supplied with each fixture. The water seal must
be installed to the waste outlet to prevent air leak-
age and insect entrance into the fixture.
NOTE:
Water seal outlet must clear front skid rail.
A Tee, adapter, plug and street ell are also supplied
with each merchandiser.
INSTALLING DRIP PIPING
Poorly or improperly installed drip pipes can
seriously interfere with the merchandiser's opera-
tion and result in costly maintenance and product
losses. Please follow the recommendations listed
below when installing drip pipes to ensure proper
installation.
1. Never use drip piping smaller than the nominal
diameter of the pipe or water seal supplied
with the merchandiser.
2. When connecting drip piping, the "water seal"
must be used as part of the drip piping to
prevent air leakage or insect entrance. Never
use two water seals in series in any one
drip pipe. D
OUBLE WATER SEALS IN SERIES
WILL CAUSE AN AIR LOCK AND PREVENT
.
DRAINING
3. Pitch the drip piping in the direction of flow.
There should be a minimum pitch of
ft (3 mm per 300 mm).
4. Avoid long runs of drip piping. Long runs
make it impossible to provide the pitch
necessary for good drainage.
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 (Printed in U.S.A.)
DRIP PIPING AND SPLASHGUARDS
1
/
in. per
8
CAUTION
!
Splashguard brackets MUST be installed
before piping case.
5. Provide a suitable air break between
flood rim of the floor drain and outlet
of drip pipe. To meet code on low
base merchandisers, it may be neces-
sary to install a field-supplied drip
pipe reducer. An alternative is to cut
the last section of drip pipe at an
angle.
6. Prevent drip pipes from freezing:
A. Do NOT install drip pipes in contact with
uninsulated suction lines. Suction lines should
be insulated with a nonabsorbent insulation
material.
B. Where drip pipes are located in dead air
spaces, such as between merchandisers or
between a merchandiser and a store wall,
provide means to prevent freezing.
Field Installed
Water Seal
Front of Case
Medium Temperature
3-1
Waste Outlet
Base Of Case
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