INSTALLATION GUIDE
PRO 48 Refrigeration
Contents
Important Note
PRO 48 Refrigeration ............................ 3
PRO 48 Specifications ........................... 4
PRO 48 Site Preparation .......................... 5
PRO 48 Installation .............................. 8
Service Information ............................. 18
Features and specifications are subject to change at any time
without notice. Visit subzero.com/specs for the most up-todate information.
IMPORTANT NOTE: Throughout this guide, dimensions in
parentheses are millimeters unless otherwise specified.
To ensure the safe and efficient installation of Sub-Zero
equipment, please take note of the following types of
highlighted information throughout this guide:
IMPORTANT NOTE highlights information that is especially
relevant to a problem-free installation.
CAUTION signals a situation where minor injury or product
damage may occur if instructions are not followed.
WARNING states a hazard that may cause serious injury or
death if precautions are not followed.
PRO 48 Refrigeration 3
subzero.com/specs
Sub-Zero PRO 48 Refrigeration
The importance of the installation of the Sub-Zero
PRO 48 unit cannot be overemphasized. Installation
should be done by a qualified installer.
Before you begin the installation process, it is recommended that you read this entire installation guide. There
are key details that you should take special care to
observe during the installation. By reading these instructions carefully, you will make the installation process
easier, problem-free and most importantly, safe.
The installation process is identical for both the model
648PROG which features a glass door on the upper refrigerator compartment and model 648PRO with a solid door.
Any questions or problems regarding the installation
should be directed to your authorized Sub-Zero dealer or
Sub-Zero customer service at 800-222-7820. You may
also check the contact & support section of our website,
subzero.com.
Important product information, including the model and
serial number of your unit are listed on the product rating
plate. The rating plate is located on the left side of the top
freezer drawer compartment (drawer must be open).
Refer to the illustration below.
Before You Start
Make sure the opening dimensions, door and drawer
clearances, electrical service and plumbing are correct for
the model you are about to install. Refer to specifications
on the following pages.
TOOLS AND MATERIALS REQUIRED
• Appliance dolly able to support 1000 lbs (454 kg) and
adequate manpower to handle the weight of the unit.
• Phillips and slotted screwdrivers.
• Torx drive screwdriver set
• Allen, standard and crescent wrenches.
• Various sized pliers.
•7/16" hex bolt nut driver.
• Cordless drill and assorted drill bits.
• Level—2' (.6 m) and 4' (1.2 m) recommended.
• 4' (1.2 m) of1/4" copper tubing and saddle valve for
water line (do not use self-piercing valves).
• Copper tubing cutter.
• Masonite, plywood, pressed fiberboard, cardboard or
other suitable material to protect finished flooring.
RATING
PLATE
Location of rating plate
(open drawer).
• Appropriate materials to cover and protect the home
and furnishings during installation.
PRO 48 Specifications 4
Overall Dimensions
MODELS 648PRO AND 648PROG
48" (1219)
HEIGHT DIMENSIONS ±
1
/2" (13)
421/8"
(1070)
301/2"
(775)
84"
(2134)
257/8" (657)
4" (102)
303/16" (767)
141/2"
(368)
21" (533)
23/8" (60)
237/8"
(606)
303/4"
(781)
SPECIFICATIONS
Capacity / Weight
INTERIOR CAPACITY R CU FT (L) FCUFT(L)
648PRO and 648PROG 18.4 (521) 11.7 (331)
SHIPPING WEIGHT LBS (KG)
648PRO 860 (390)
648PROG 875 (397)
PRO 48 Site Preparation 5
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Opening Dimensions
STANDARD AND FLUSH BUILT-IN INSTALLATIONS
TOP VIEW
OPENING
DEPTH
OPENING
DEPTH
OPENING
HEIGHT
OPENING
WIDTH
FRONT VIEWSIDE VIEW
Opening Dimensions Standard Flush
Opening Width 471/2" (1206) 48" (1219)
Opening Height 833/4" (2127) 841/8" (2137)
Opening Depth 24" (610) 26" (660)
IMPORTANT NOTE: For standard built-in installations, the
face frame of the unit will extend 2" (51) beyond cabinetry.
In flush built-in installations, the front of the face frame will be
flush with surrounding cabinetry.
PRO 48 Site Preparation 6
Electrical Requirements
For PRO 48 models, the electrical supply should be
located within the shaded area shown in the illustration
below. Follow the National Electrical Code and local codes
and ordinances when installing the receptacle. A separate
circuit, servicing only this appliance is required. A ground
fault circuit interrupter (GFCI) is not recommended and
may cause interruption of operation.
Electrical Requirements
Power Supply 115 V AC, 60 Hz
Circuit Breaker 15 amp
Receptacle 3-prong grounding-type
The outlet must be checked by a qualified electrician to
be sure that it is wired with the correct polarity. Verify
that the outlet is properly grounded.
Do not use an extension cord or two-prong adapter.
Do not remove the power supply cord ground prong.
Always shut power off at the circuit breaker before
performing any installation, service or maintenance.
FRONT VIEW
7"
E
(178)
6"
(152)
751/2"
(1918)
FROM
FLOOR
Location of electrical supply.
PRO 48 Site Preparation 7
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Plumbing Requirements
The PRO 48 has an automatic ice maker with an integrated
water filtration system. The water supply line should be
located within the shaded area shown in the illustrations.
The water line must not interfere with installation of the
anti-tip bracket.
The water supply line should be connected to the house
supply with an easily accessible shut-off valve between
the supply and the unit. Do not use self-piercing valves.
A saddle valve kit is available through your authorized
Sub-Zero dealer.
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 water filtration system must be bypassed. Refer
to water filter bypass mode on page 16.
IMPORTANT NOTE: All installations must meet local
plumbing code requirements.
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, make sure that the water
softener is well maintained and operating properly.
Plumbing Requirements
Water Supply Line
Water Pressure 35–120 psi (2.4–8.3 bar)
Excess Water Line for Connection 36" (914)
18"
(457)
FLOOR
FRONT VIEW
Location of water supply—
rear.
(152)
3"
6"
(76)
Location of water supply—
bottom.
1
/4" OD copper line
BACK WALL
18"
(457)
TOP VI EW
1
/2"
13)
(
6"
(152 )
IMPORTANT NOTE: Do not use with water that is microbi-
ologically 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.
PRO 48 Installation 8
Anti-Tip Bracket Installation
IMPORTANT NOTE: For either wood or concrete floor
To prevent the PRO 48 from tipping forward and
provide a stable installation, the unit must be secured
in place with the anti-tip bracket provided with the unit.
IMPORTANT NOTE: Placement of the anti-tip bracket is
critical to a stable installation. Failure to properly position
the anti-tip bracket will prevent it from engaging the unit.
The anti-tip bracket must be installed exactly 26" (660)
from the front of the face frame of the unit to the back of
the anti-tip bracket. Also, the centering line on the lower
flange of the anti-tip bracket must be centered in the
rough opening. Make sure the anti-tip bracket is installed
on a solid base. Refer to the illustration below.
To properly secure the anti-tip bracket for a stable installation, use all anti-tip bracket hardware as instructed for
wood or concrete floors.
applications, if the wood screws do not hit a wall stud in
any of the upper holes on the anti-tip bracket, use the
1
provided #8–18 x 1
/4" wood screw, #12 flat washer and
nylon zip-it wall anchor in its place.
IMPORTANT NOTE: In some installations the subflooring
or finished floor may necessitate angling the screws used
to fasten the anti-tip bracket to the back wall.
Make sure there are no electrical wires or plumbing in
the area which the screws could penetrate.
Anti-Tip Bracket Hardware
1 Anti-tip bracket
12 #12 x 21/2" PN HD wood screws
33/8"x33/4" Trubolt anchors
12 #12 flat washers
3 #8–18 x 11/4"ABPHHDscrews
3 Nylon zip-it wall anchors
Anti-tip bracket.
PRO 48 Installation 9
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Anti-Tip Bracket Installation
WOOD FLOOR APPLICATIONS
Use the twelve #12 x 21/2" wood screws and the twelve
#12 flat washers provided. Drill pilot holes
3
/16" (5)
diameter maximum and make sure the screws penetrate
through the flooring material and into the wall plate a
3
minimum of
/4" (19). Make sure the screws hold tight.
Refer to the illustration below.
CONCRETE FLOOR APPLICATIONS
Use the three3/8"x33/4" concrete wedge anchors, six
#12x2
provided. Drill pilot holes
1
/2" wood screws and six #12 flat washers
3
/16" (5) diameter maximum and
make sure the screws penetrate through the flooring
material and into the wall plate a minimum of
Then drill
minimum of 1
3
/8" (10) diameter holes into the concrete a
1
/2" (38) deep. Make sure the anchors and
3
/4" (19).
screws hold tight. Refer to the illustration below.
INSTALL CONCRETE WEDGE ANCHORS:
1) Drill a3/8" (10) diameter hole any depth exceeding the
minimum embedment. Clean the hole or continue
drilling additional depth to accommodate drill fines.
Use a carbide drill bit manufactured within ANSI
B94.12-77.
2) Assemble the washer and nut flush with the end of
anchor to protect threads. Drive the anchor through the
material to be fastened until the washer is flush with
the surface material.
3) Expand the anchor by tightening the nut 3–5 turns past
hand-tight position or to 25 foot-pounds of torque.
Always wear safety glasses and use other necessary
protective devices or apparel when installing or
working with anchors.
Anchors are not recommended for use in lightweight
masonry material such as block or brick, or for use in
new concrete which has not had sufficient time to cure.
The use of core drills is not recommended to drill holes
for the anchors.
233/4"
233/4"
(603)
WALL PLATE
SUBFLOORING
WOOD FLOOR
(603)
FINISHED
FLOORING
233/4"
(603)
WALL PLATE
SUBFLOORING
CONCRETE
FLOOR
Wood floor. Concrete floor.
233/4"
(603)
FINISHED
FLOORING
11/2"(38)
min
PRO 48 Installation 10
Unpack the Unit
Uncrate the PRO 48 unit and inspect for any damages.
Remove the wood base and discard the shipping bolts
and brackets that hold the wood base to the bottom of the
unit. Remove and discard all packing materials.
IMPORTANT NOTE: Do not discard the kickplate, anti-tip
bracket and hardware or corner protectors. These items
will be needed for installation.
Retract the front leveling legs all the way up to allow the
unit to be moved into position more easily. You will extend
the front leveling legs down and make adjustments once
the unit is in position.
Remove the drain pan from the base of the unit to avoid
damage to the drain pan, and allow for proper placement
of the appliance dolly.
Grille Removal
In order to prevent damage to the PRO 48 grille, the top
grille assembly should be removed prior to moving the
unit.
To remove the grille assembly, pull out on the bottom edge
of the grille and tilt the grille frame forward. Disconnect the
network cables which connect the exterior temperature
displays on the grille to the display module. Cut the two
white cable ties which attach the network cables to the
right grille support and disconnect the cables. The cable
ties should be replaced with the extra cable ties provided,
once the unit is properly installed. Remove the three grille
bolts from base of the grille and the upper grille screw.
Remove the grille assembly. Refer to the illustrations
below.
Reverse this procedure to reinstall the grille assembly.
GRILLE
SCREW
NETWORK
CABLES
GRILLE BOLT
Lift grille assembly. Grille removal.
PRO 48 Installation 11
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Position the Unit
IMPORTANT NOTE: If for any reason the unit has been
Before moving the PRO 48 unit into position, secure
doors and drawers closed and protect any finished
flooring.
Use an appliance dolly to move the unit near the rough
opening. The PRO 48 is equipped with rollers, so it can be
moved into position more easily.
laid on its back or side, you must allow the unit to stand
upright for a minimum of 24 hours before connecting
power.
Shut off power to the electrical outlet. Plug the power cord
into the grounded outlet and roll the unit into position.
Make sure the anti-tip bracket is properly engaged.
When securing the unit on the appliance dolly, use the
corner protectors (retained from the packing materials)
under the strapping to avoid damage to the stainless steel
exterior. Also, secure the doors and drawers closed with
the strapping. Refer to the illustration below for proper
placement of the appliance dolly.
IMPORTANT NOTE: The rear levelers must be in their
lowest position in order to roll the unit back into the rough
opening. Leveling cannot be completed until the unit is in
position.
The PRO 48 is very heavy—885 lbs (401 kg) or 900 lbs
(408 kg). Be sure to have adequate manpower when
moving and positioning the unit.
Moving the PRO 48.
PRO 48 Installation 12
Water Line Connection
Approximately 3' (.9 m) of1/4" plastic tubing is connected
1
to the ice maker with a preassembled
connection at the end. This tubing is located under the
unit.
The water line fitting connection kit, provided with the unit,
contains a
1
/4" compression sleeve and nut for connection
to the household water line. Place the sleeve and nut on
the water line and fasten to the connection at the end of
the tubing under the unit. Do not over tighten. Check all
water line fittings for leaks. Make sure the drain pan can
be removed without water line interference.
Purge the water line prior to final connection to the unit.
This will remove any debris that may be present in the
tubing from installing the new water line.
IMPORTANT NOTE: If a reverse osmosis system is used,
it is recommended that the water filtration system be
bypassed. Refer to water filter bypass mode on page 16.
IMPORTANT NOTE: Let your customer know that the ice
maker will not produce ice immediately, and that the first
few batches of ice produced should be discarded. Allow
24 hours for proper ice production.
/4" compression
Level the Unit
Once the unit is in position, extend the front leveling legs
down by tur ning the legs counterclockwise and adjust the
height. The rear height adjustment can be made from the
5
front of the base. Use a
rollers. Turn the
5
/16" hex bolt clockwise to raise the unit or
counterclockwise to lower it. Refer to the illustration below
for location of the rear roller base adjustment.
When the unit is properly leveled, door and drawer adjustments are less likely to be necessary.
IMPORTANT NOTE: Be sure to reference leveling of the
unit to the floor and not surrounding cabinetry. This could
affect the operation of the unit, such as door closing.
To reduce the possibility of the unit tipping forward,
the front leveling legs must be in contact with the floor.
/16" socket to adjust the rear
IMPORTANT NOTE: Water lines must not be exposed to
freezing temperatures. Exposure could cause damage to
the unit and home.
REAR
ADJUSTMENT
FRONT
LEVELING LEG
Rear roller base adjustment.
PRO 48 Installation 13
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Door Adjustment
Make sure both doors of the PRO 48 are properly aligned
for function and appearance. If not, adjustments can be
made to the cabinet hinges.
IMPORTANT NOTE: The unit must be properly leveled
before adjusting hinges.
If the PRO 48 is properly installed and leveled, it may still
be necessary to adjust doors left to right. Adjustments are
performed at the top and / or bottom cabinet hinges.
HINGE ADJUSTMENT
1) Lift up the vent portion of the top grille.
2) Remove the door by opening to approximately 90° and
lifting the door off cabinet hinges. Refer to the illustration below.
The doors of the PRO 48 are very heavy. Use care when
removing them.
IMPORTANT NOTE: When adjusting hinges, it is important
to keep hinges parallel to the face of the door and side of
the cabinet. Excessive misalignment will result in door
light switch malfunction. If the switch is not activated, the
fan will not operate and lights will remain on. This will
result in elevated cabinet temperatures. After hinge adjustments are made, check for proper functioning of door light
switch. Refer to the illustration below.
3) Remove hinge pins.
4) Loosen the two cabinet hinge screws
1
/4 to1/2 turn.
Refer to the illustration below.
5) Reinstall hinge pins and door. With the door open,
using the Allen wrench provided, turn the adjustment
screw to adjust the cabinet hinge. Refer to the illustration below.
6) Close the door and check alignment. If additional
adjustment is required, repeat these steps until the
door is properly aligned.
HINGE
SCREW
HINGE
PIN
CABINET
HINGE
ADJUSTMENT
SCREW
LIGHT
SWITCH
Door light switch.
Door removal. Hinge adjustment.
PRO 48 Installation 14
Drawer Adjustment
Make sure all drawers of the PRO 48 are properly aligned
for function and appearance. If not, vertical and horizontal
adjustments can be made to the drawers.
The drawer must be removed to make vertical and horizontal adjustments. To remove the drawer, pull the drawer
all the way out until it stops, lift up evenly on both sides of
the drawer front and pull out.
To reinstall the drawer, raise the front of the drawer and
place onto the drawer slide tracks. Be sure to engage the
front of the drawer slide with the drawer assembly. Make
sure the drawer is fully engaged onto the tracks. Check
alignment of the drawer closer. If the closer catch does
not align with closer pin, adjust the position of drawer
closer.
VERTICAL ADJUSTMENT
1) Loosen the drawer slide mounting screws.
2) Using a
7
/16" open-end wrench, turn the adjustment
screw until proper alignment is achieved. Refer to the
illustration below.
HORIZONTAL ADJUSTMENT
1) Loosen the two front drawer slide screws. Refer to the
illustration below.
2) Move adjustment blocks to desired position and
tighten screws.
3) Release the rear adjustment block by disengaging the
snaps.
4) Move the block forward to shift drawer to the right, and
back to shift drawer to the left. Each position will move
the drawer .030" (.8). Both sides should be moved in
the same direction.
5) Snap the block over the pins located on the rear
adjuster. Refer to the illustration below.
6) After adjustment, tighten all screws and reinstall the
drawer. Check the drawer seal for proper gasket
seating.
3) After adjustment, tighten all screws and reinstall the
drawer. Check the drawer seal for proper gasket
seating.
MOUNTING
ADJUSTMENT
SCREW
Vertical adjustment.
SCREW
REAR
ADJUSTMENT
BLOCK
SLIDE
SCREW
Horizontal adjustment.
PRO 48 Installation 15
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Complete the Installation
INSTALL KICKPLATE
Make sure the drain pan is in the proper position before
installing the kickplate. To install, screw the kickplate to
brackets attached to the inside surface of each roller
base. Refer to the illustration below.
IMPORTANT NOTE: The kickplate must be removable for
service. The floor cannot interfere with removal.
Reinstall the grille by reversing the procedure outlined on
page 10. Turn power back on to the electrical outlet.
Optional Accessories
90°DOORSTOP
The doors of PRO 48 models open to 135°. For installations where the door opening must be limited, an optional
90° door stop kit is available through your authorized
Sub-Zero dealer. To obtain local dealer information, visit
the find a showroom section of our website, subzero.com.
SIDE AND TOP PANELS
For freestanding applications, stainless steel side and top
panels are available through your authorized Sub-Zero
dealer. Installation instructions are provided with the
panels. To obtain local dealer information, visit the find a
showroom section of our website, subzero.com.
KICKPLATE
Kickplate installation.
PRO 48 Installation 16
Water Filtration System
WATER FILTER BYPASS MODE
If you choose not to use the water filtration system, the
system can be placed in water filter bypass mode by
removing the water filter cartridge. In this mode, the water
supplied to the ice maker will not be filtered and the water
filter monitor will be deactivated.
Lift the top grille assembly to access the water filter
cartridge. To lift the grille, pull out on the bottom edge of
the grille and tilt the grille frame forward. Refer to the
illustration.
WATER FILTER
Slowly rotate the water filter cartridge one-quarter tur n
counterclockwise to disengage. Gently twist until the cartridge is free from the base. DO NOT pull. There will be
water in the filter cartridge, so it is normal for a small
amount of water to spill out. Refer to the illustration.
The water filtration system automatically goes into bypass
mode when the filter cartridge is removed.
Lift grille assembly. Water filter removal.
PRO 48 Installation 17
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Installation Checklist
To ensure a safe and proper installation, the following
checklist should be completed by the installer to ensure
that no part of the installation has been overlooked.
INSTALLATION CHECKLIST
Have all packing materials been removed?
Turn the unit on. Is it operating properly?
If not, is the unit plugged in? Is the control turned on?
Is the water supply line connected and not leaking? Is
the water supply turned on and ice maker control on?
Has the anti-tip bracket been installed securely and
properly engaging the unit?
Is the unit leveled properly on a solid, level floor? Has
the drain pan and kickplate been installed?
Has the top grille assembly been reinstalled?
Are doors and drawers aligned for proper appearance
and operation? Is a 90° door stop required?
Has the water filter cartridge been removed (for homes
with a reverse osmosis system)?
Does the customer understand the unit's operation?
Does the customer have the warranty package?
Have any installation or service problems been noted
on the product registration card? Has the registration
card been mailed in?
Have stainless steel surfaces been inspected for any
imperfections? This is to be done by the authorized
Sub-Zero dealer or installer with the customer, upon
completion of installation. Stainless steel surfaces are
covered by a limited 60-day warranty for cosmetic
defects.
Service Information 18
Service Information
If service is necessary, maintain the quality built into your
PRO 48 unit by calling Sub-Zero factory certified service.
For the name and number of Sub-Zero factory certified
service nearest you, check the contact & support section
of our website, subzero.com or call Sub-Zero customer
service at 800-222-7820.
When calling for service, you will need the model and
serial number of your unit. Both numbers are listed on the
product rating plate, located on the left side of the top
freezer drawer compartment (drawer must be open).
Refer to the illustration below.
If you are storing or disposing of your old refrigerator or
freezer, please do it
safely. Remove the
doors or tightly secure
the doors closed.
Child entrapment
accidents can be tragic.
RATING
PLATE
Location of rating plate
(open drawer).
The information and images in this guide are the copyright property of Sub-Zero, Inc. Neither this guide nor any information or images contained herein may be
copied or used in whole or in part without the express written permission of Sub-Zero, Inc. ©Sub-Zero, Inc. all rights reserved.
Wolf, Wolf & Design, Wolf Gourmet, W & Design and the color red as applied to knobs are registered trademarks and service marks of Wolf Appliance, Inc.
Sub-Zero, Sub-Zero & Design, Dual Refrigeration, Constant Care and The Living Kitchen are registered trademarks and service marks of Sub-Zero, Inc.
(collectively,the “Company Marks.”) All other trademarks or registered trademarks are property of their respective owners in the United States and other countries.
SUB-ZERO, INC. P. O. BOX 44848 MADISON, WI 53744 SUBZERO.COM 800.222.7820
7020379 REV-A 10/2010
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