Drip Piping And Splashguards; Waste Outlet And Water Seal; Installing Drip Piping - Hussmann SMB Installation And Operation Manual

P/N 0420057A

WASTE OUTLET AND WATER SEAL

The waste outlet is located in front of the fan
plenum 6 ft (1829 mm) from the left-hand of the
merchandiser (facing case front) allowing drip
piping to be run under the fixture lengthwise. A
1
1 / in. (38 mm) water seal is supplied with each
2
fixture. The water seal must be installed to
prevent air leakage and insect entrance into the
fixture. A tee, adapter, ell, and plug have been
shipped to allow field installation to determine
direction of drain.
NOTES:
Water seal outlet must clear front skid rail.
PVC–DWV solvent cement is recommended.
Follow the manufacturer's instructions.

INSTALLING DRIP PIPING

Poorly or improperly installed drip pipes can
seriously interfere with the operation of these
merchandisers, and result in costly maintenance
and product losses. Please follow the recommen-
dations 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. Double 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
foot (3 mm per 300 mm).
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 (Printed in U.S.A.)

DRIP PIPING AND SPLASHGUARDS

1
/ in. per
8
4. Avoid long runs of drip piping. Long runs
make it impossible to provide the pitch neces-
sary for good drainage.
5. Provide a suitable air break between flood rim
of the floor drain and outlet of drip pipe.
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 non-absorbent insulation
material.
B. Where drip pipes are located in dead air
spaces, such as between merchandisers or
between a merchandiser and a store wall, pro-
vide means to prevent freezing.
Note: To prevent condensation problems, the
water seal should be insulated.
Service Merchandisers
3-1