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TO THE INSTALLER
Air-Cooled Machines
Do not obstruct air intake and discharge openings:
Air-cooled units require a minimum of 6 in. (152 mm) of
clearance around all sides of the freezer. Failure to allow
adequate clearance can reduce the refrigeration capacity
of the freezer and possibly cause permanent damage to
1
the compressors.
Water Connections
(Water-Cooled Machines Only)
An adequate cold water supply must be provided with a
hand shutoff valve. On the rear of the machine, two 3/8
in. I.P.S. water connections for inlet and outlet are
provided for easy hookup. Permanently connect the
machine using 1/2 in. (12.7 mm) inside diameter water
lines. (Flexible lines are recommended, if local codes
permit.) Depending on local water conditions, it may be
advisable to install a water strainer to prevent foreign
substances from clogging the automatic water valve.
There will be only one water-in and one water-out
connection. Do not install a hand shutoff valve on the
water-out line. Water should always flow in this order:
first, through the automatic water valve; second, through
the condenser; and third, through the outlet fitting to an
open trap drain.
IMPORTANT! A backflow prevention device is
required on the incoming water connection side. Please
see the applicable national, state, and local codes for
determining the proper configuration. Water pressure to
the unit must not exceed 150 psi (1034 kPa).
1-2
Electrical Connections
IMPORTANT! In the United States, this
machine is intended to be installed in accordance with
the National Electrical Code (NEC), ANSI/NFPA 701987.
The purpose of the NEC code is the practical
safeguarding of persons and property from hazards
arising from the use of electricity. This code contains
provisions considered necessary for safety.
In all other areas of the world, the machine should be
installed in accordance with the existing local codes.
Please contact your local authorities if you have any
questions.
Each machine requires one power supply for each data
label on the machine. Check the data label(s) on the
machine for branch circuit overcurrent protection or fuse,
circuit ampacity, and other electrical specifications.
See the wiring diagram provided inside the electrical box
for proper power connections.
WARNING! This machine must be properly
grounded. Failure to do so can result in severe personal
injury from electrical shock.
IMPORTANT! An equipotential grounding lug is
provided with this machine. Some countries require the
grounding lug to be properly attached to the rear of the
frame by the authorized installer. The installation location
is marked by the equipotential bonding symbol (5021 of
IEC 60417-1) on both the removable panel and the
machine's frame.
IMPORTANT!
•
Stationary machines which are not equipped
with a power cord and a plug or another device
to disconnect the machine from the power
source must have an all-pole disconnecting
device with a contact gap of at least 0.125 in.
(3 mm) in the external installation.
•
Machines that are permanently connected to
Model PH61
To the Installer
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