Rev. 0308
5
Plumbing
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
seriously interfere with the operation of this re-
frigerator, 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
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.
Refrigeration
GELATO/SOFT ICE CREAM
These display cases are designed to hold product at
temperatures that will allow operators to scoop or dip
gelato and soft ice cream into cones, containers or
dishes. The temperatures will fall in the range of plus 4F
to plus 12F depending on amount of sugar and butterfat
in product. The temperature and condition of product
must be checked after being in case the first four hours
of operation. Because of the sensitive condition of these
products, defrost is very critical. The fans do NOT run
during defrost periods. The maximum time is 20
minutes for electric and 10 minutes for hot gas and
Kool Gas. The fans are on a 2 minute delay after defrost
to avoid adding heat to case.
If, because of ambient conditions, the defrost must be
changed, amount of defrosts not time is necessary. i.e., 3
by 20 minutes instead of 2 x 40 minutes.
REFRIGERANT TYPE
The standard refrigerant will be R-404 unless otherwise
specified on the customer order. Check the serial plate
on the case for information.
Piping for more than one case on a condensing unit is
run underground with either common suction and
liquid lines from the machine room or individual suction
and liquid lines joined together in the machine room.
REFRIGERATION LINES
LIQUID SUCTION
3/8" O.D. 5/8" O.D.
NOTE: The standard coil is piped at 5/8" (suction); however,
the store tie-in may vary depending on the number of
coils and the draw the case has. Depending on the case
setup, the connecting point in the store may be
5
/8",
7
/8", or 1
1
/8". Refer to the particular case you are
hooking up.
Refrigerant lines should be sized as shown on the
refrigeration legend furnished by the store.
Install
P-traps (oil traps) at the base of all suction line
vertical risers.
Pressure drop can rob the system of capacity. To keep the
pressure drop to a minimum, keep refrigerant line run
as short as possible, using the minimum number of
elbows. Where elbows are required, use long radius
elbows only.
FOR REFRIGERATORS WITH KOOLGAS DEFROST,
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