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

P/N 0395730F

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 merchandiser front). A
water seal is supplied with each merchandiser.
The water seal must be installed at the waste out-
let to prevent air leakage and insect entrance into
the merchandiser.
NOTE:
Water seal outlet must clear front skid rail.
Refer to Data Sheets for dimensions.
A tee fitting, an adapter, a plug and a 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. Improperly installed drip pipes can cause
condensate to form on the outside of drip pipes.
Refer to the data sheet shipped with each model
to correctly locate piping. Please follow the rec-
ommendations listed below when installing drip
pipes to ensure proper installation.
• Never use drip piping smaller than the nominal
diameter of the pipe or water seal supplied with
the merchandiser.
• When connecting drip piping, the water seal
must be used as part of the drip piping to pre-
vent air leakage or insect entrance. The water
seal must be installed with the waste outlet at
the main drain point of each merchandiser.
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
• Pitch the drip piping in the direction of flow.
There should be a minimum pitch of
(3 mm per 305 mm).
HUSSMANN CORPORATION, BRIDGETON, MO 63044-2483 U.S.A.

DRIP PIPING AND SPLASHGUARDS

.
1
/ in. per ft
8
CAUTION
!
Splashguard brackets MUST be
installed before piping merchandiser.
• Avoid long runs of drip piping. Long runs make
it impossible to provide the pitch necessary for
good drainage.
• 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 necessary to
install a field-supplied drip pipe reduc-
er. An alternative is to cut the last sec-
tion of drip pipe at an angle.
• Prevent drip pipes from freezing:
– Do NOT install drip pipes in contact with
uninsulated suction lines. Suction lines should
be insulated with a non-absorbent insulation
material.
– 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
3-1
Waste Outlet
Base Of Case
Low Temperature