Water And Drain Connections - H.C Duke & Son 959R Operator’s Manual With Illustrated Parts List

INSTALLATION AND SERVICE MANUAL 959R
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5.2

Water and Drain Connections

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8
When making water and drain connec-
tions to water-cooled models, the
following items must be taken into
consideration:
1. Maintain water temperature and
pressure limits as specified in
Section 5.1.
2. A minimum ½" ID water line for the
freezer must be provided immedi-
ately behind or adjacent to the
freezer. Make sure lines are sized
properly, free of corrosion, and
flushed prior to connecting to the
freezer. Provide a shut-off valve in
the water supply line with a male
flare connection. Install a water
strainer at the inlet and use flexible
water line hose 5 to 6 feet long with
female flare fittings to allow mobility
of the freezer for servicing and
cleaning. Connect the freezer to
cold water only.
3. Provide a drain close to the freezer .
This can be a floor drain. Do not
restrict or control the flow of the
drain water, as this will cause
operational problems. Make the
connection to the freezer with a
flexible water line hose.
IMPORTANT:
All water cooled models must have
condensers blown out if exposed
to temperatures below freezing.
Pressure of at least 20 psig should
be put through the water lines
starting inside the water valve. See
Operator's Manual for instructions.
4. If the water to the inlets to multiple
freezers are to be tee-connected,
make sure that the pipe feeding the
tee is one size larger.
IMPORTANT:
Do NOT install a solid connection
from the drain to a sanitary service
line. Allow an air break to prevent
the possibility of the reverse flow
of sewer water. Drain connections
must comply with local code
regulations.
5. If glycol system is used, refer to
manufacturer's instructions. Adjust
the freezer water valve to specifica-
tions in Section 8.2 Refrigeration
Settings. Also allow for shut off
valves to return freezer to city water.
184981-02