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6
ELECTRICAL REQUIREMENTS
A 115 V AC, 60 Hz, 15 amp circuit breaker and
e
lectrical supply are required. A separate
circuit, servicing only this appliance, is
required. Locate the electrical outlet within the
shaded area indicated in the Installation Speci-
fications illustration on the previous page.
T
he PRO 48 is equipped with a power supply
cord with a 3-prong grounding plug, which
must be plugged into a mating 3-prong
grounding-type wall receptacle. Follow the
National Electrical Code and local codes and
ordinances when installing the receptacle.
IMPORTANT NOTE:
A ground fault circuit
interrupter (GFCI) is not recommended and
may cause interruption of operation.
Do not use an extension cord or two
prong adapter. Electrical ground is
required on this appliance. Do not remove
the power supply cord ground prong.
The outlet must be checked by a qualified
electrician to be sur
e that it is wir
ed with
the correct polarity. Verify that the outlet
pr
ovides 115 volts and is properly
grounded.
PLUMBING REQUIREMENTS
The PRO 48 has an automatic ice maker with
a
n integrated water filtration system. This
system operates on water pressure between 35
psi (2.4 bar) and 120 psi (8.3 bar). If the water
filtration system is bypassed, a water pressure
between 20 psi (1.4 bar) and 120 psi (8.3 bar)
must be maintained. Refer to Water Filter
Bypass Mode on page 7.
Rough in the cold water supply line using
1
/4"
OD copper line. The water line should be
routed up through the floor within
1
/2" (13)
from the back wall and no higher than 3" (76)
off the floor. If you have to come through the
wall, make sure the water line is no more than
3" (76) from the floor.
Regardless of the routing, allow 3' (.9 m) of
excess copper tubing to remain outside the
wall or floor for easy connection to the unit.
Locate the water supply line within the shaded
area indicated in the Installation Specifications
illustration on the previous page.
Use an easily accessible shut-off valve
between the water supply and the unit. Do not
use self-piercing valves. A saddle valve kit
(part #4200880) is available from your
Sub-Zero dealer.
It is not recommended that the ice maker be
connected to a softened water supply. Water
softener chemicals, such as salt from a
malfunctioning softener, can damage the ice
maker and lead to poor ice quality. If a
softened water supply cannot be avoided, be
sure that the water softener is well maintained
and operating properly.
IMPORTANT NOTE:
Do not use with water
that is microbiologically unsafe or of unknown
water quality without adequate disinfection
before or after the system. Systems certified
for cyst reduction may be used on disinfected
waters that may contain filterable cysts.
IMPORTANT NOTE:
All installations must
meet local plumbing code r
equirements.
IMPORTANT NOTE:
A reverse osmosis
system can be used, provided there is constant
water pressure of 20 psi (1.4 bar) to 120 psi
(8.3 bar) supplied to the unit at all times. In
this application, the integrated water filtration
system must be set to bypass mode.
Always shut power off at the circuit
br
eaker befor
e per
for
ming any installa-
tion, service or maintenance.
PRO 48 INSTALLATION INSTRUCTIONS