Installation; Electrical Requirements - H.C Duke & Son 959R Operator’s Manual With Illustrated Parts List

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2.2

Installation

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2.3

Electrical Requirements

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1. Always verify electrical specifications
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184981
CAUTION
All materials and connections
must conform to local
requirements and be in
compliance with the National
Electrical Code (NEC).
1. Where codes permit, we recommend
that you install the freezer on casters
and have flexible water and electrical
connections for easier service and
cleaning ability.
2. All models require a minimum 6-inch
(15cm) clearance on the rear and side
panels for adequate ventilation.
3. Water cooled will require a 1/2" female
flare water inlet and water waste
connection. Both condensers are tied
CAUTION
To prevent accidental electrical
shock, a positive earth ground
is required.
on the data plate of each individual
freezer. Data plate specifications will
always supersede the information in
this manual.
DUKE Model 959R Soft Serve Freezer
together so that one water inlet and one
water waste are all that is required. The
connections are found on the back
panel and are clearly t a gged - "Water
Inlet" and "W ater Waste". A manual
shut-off valve should be installed in the
water inlet line at the time of installation.
Be sure to maintain inlet water pressure
above 35 psig and below 140 psig.
4. Place the freezer in the final location
and level the machine by adjusting
the legs or casters so that the unit is
level side-to-side, and the front is
approximately 1/4" lower than the
rear. This will allow proper drainage
of the freezing cylinder.
2. Supply voltage must be within + 10%
of voltage indicated on nameplate.
Also, on three-phase systems,
voltage between phases must be
balanced within 2%. (More than a 6
volt difference between any two
voltage measurements at 208-230
volts indicates a possible imbalance.)
Request local power company to
correct any voltage problem.
3. An easily accessible main power
disconnect must be provided for all
poles of the wiring to the freezer.
3