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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
Hussmann's instructions.
Installing Condensate Drain
Poorly or improperly installed condensate drains can
seriously 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
plumbing 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.
Refrigerant Type
The standard refrigerant will be R-404A unless otherwise
specified on the customer order. Check the serial plate
on the case for information.
Piping
The refrigerant line outlets are located under the case.
Locate first the electrical box, the outlets are then on the
same side of the case, but at the opposite end. Insulate
suction lines to prevent condensation drippage.
Refrigeration Lines
Liquid
3/8" O.D.
NOTE:
The standard coil is piped at
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
or 1
/
". Refer to the particular case you are hooking up.
1
8
5. Plumbing
6. Refrigeration
Suction
5/8" O.D.
/
" (suction); however,
1
2
/
",
/
",
5
7
8
8
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
maintain 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
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.
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.
Control Settings
See Q2-SS technical data sheet for the appropriate
settings for your merchandiser. Maintain these
parameters to achieve near constant product
temperatures. Product temperature should be measured
first thing in the morning, after having been refrigerated
overnight. For all multiplexing, defrost should be time
terminated. Defrost times should be as directed in the
Q2-SS technical data sheet. The number of defrosts per
day should never change. The duration of the defrost
cycle may be adjusted to meet conditions present at
your location.
9
be insulated with a
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