Sub-Zero 315 User Manual
installation
and
operation
MODEL 315
ice maker
®
installation
and
operation
InTRODUCTION
The Sub-Zero Model 315 is a restaurant-type ice maker
designed for home use. It produces the same high quality
clear ice that you would expect from Sub-Zero.
This guide is intended as a resource for the installation and
operation of the Model 315. Because it contains information on safety and maintenance, Sub-Zero strongly recommends that this manual be read thoroughly and that it be
kept where it is readily available.
Before you begin your installation, there are a few things
you should take special care to observe.
As you follow these installation instructions, take particular note of the WARNING! and CAUTION! symbols when
they appear. This information is important for the safe and
efficient installation of this Sub-Zero.
In addition, the printed instructions may signal an
IMPORTANT NOTE, which highlights information that is
especially important for a problem-free installation.
Second, make sure that the actual equipment that was
shipped to you matches the design you are expecting to
install. If the unit you receive does not match your requirements, contact your Sub-Zero dealer.
WARNING
alerts you to a hazard that may cause serious injury or
death if precautions are not followed.
CAUTION
signals a hazard where minor injury or product damage may occur if you do not follow instructions.
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-15
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-17
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-19
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 20-21
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2
MODEL 315
ice maker
®
PRE-INSTALLATION
Technical Information
Your Sub-Zero ice maker is designed and manufactured
with the highest regard for safety and performance. It
meets or exceeds the standards of UL, and CUL. Sub-Zero
assumes no liability or responsibility of any kind for products manufactured by Sub-Zero that have been altered in
any way, including the use of any parts and/or other components not specifically approved by Sub-Zero. Sub-Zero
reserves the right to make design changes and/or
improvements at any time. Specifications and designs are
subject to change without notice.
Model 315 Features
3
335/8"
(854)
153/16"
(386)
293/8"
(746)
4"
(102)
335/8"
(854)
19"
(483)
21/8"
(54)
19"
(483)
TOP VIEW
153/16"
(386)
115˚
DOOR SWING
SIDE VIEWFRONT VIEW
OVERALL DIMENSIONS
H
I
G
HL
O
W
N
O
R
M
A
L
O
F
F
ICE LEVEL
C
ONTROL
Control Knob
Kickplate/Grille
Control Box Cover
Door Gasket
Curtain
Reservoir
Pre-Installation Considerations
To properly make and store ice, the Model 315 requires
access to air, potable water, 115 volt electricity and a drain.
The ice maker must be installed indoors, in a controlled
environment.
AIR: The ice maker uses a fan to take in room air at the
front of the ice maker through the right side of the kickplate. It discharges warm air out the left side of the kickplate. Anything placed in front of the kickplate will restrict
air flow and cause a decrease in performance and efficiency. The minimum air temperature the ice maker will operate in is 50˚F, and the maximum is 100˚F.
WATER SUPPLY: The ice maker requires a continuous
supply of potable water at no less than 20 psig of flowing
pressure. Static water pressure should not exceed 80 psig.
The minimum water temperature the ice maker will operate in is 40˚F, and the maximum is 100˚F.
WATER QUALITY: There is no such thing as “pure”
water; all water, including potable water supplied by
municipalities, contains some "impurities".Water absorbs
impurities from the air as rain and/or as it flows through
the ground. Some of the impurities are solid particles,
these are known as suspended solids, and a fine particle
filter will remove them. Other impurities are chemically
bonded to the water molecules, and cannot be filtered out,
these are called dissolved solids.
Ice made by the Model 315 will have a lower mineral content than the water it was made from.
Ice Scoop
4
Pre-INSTALLATION
Pre-Installation Considerations
Purer water will freeze first in the ice making molds. The
reason for this is that anything dissolved in water lowers
the water’s freezing temperature.
This concentrates most of the impurities in the ice maker
water reservoir where they may form hard deposits known
as scale. The Model 315 dilutes the concentration of minerals by over-filling the reservoir during the harvest cycle
(with the excess water flowing down the drain). About 3
quarts of water flow into the unit each cycle.About 1 quart
of that rinses the reservoir and goes down the drain.
Some impurities will inevitably remain, and will stick to the
parts in the ice maker, and will cause malformed ice cubes.
Eventually, built up mineral scale can shorten ice maker
life.
To keep the ice maker operating properly, these impurities
or minerals will have to be regularly dissolved by an acid
cleaning, using Sub-Zero ice maker cleaner. Directions for
this may be found in the section under cleaning.
In general, it is always a good idea to filter the water. A
water filter, if it is of the proper type, can remove taste and
odors as well as particles. Some methods of water treatment for dissolved solids include reverse osmosis, and
polyphosphate feeders. A reverse osmosis system should
include post treatment to satisfy the R.O. water’s "aggressiveness".
Deionized water is not recommended.
Because water softeners exchange one mineral for another, Sub-Zero does not recommend their use for ice makers.
Where water is very hard, softened water may result in
white, mushy cubes that stick together.
Sub-Zero suggests, that if in doubt about the water, that a
local point of use water specialist be contacted for recommendations on water treatment.
Area Requirements
Before moving the units in place, be sure the finished
dimensions, electrical and plumbing locations and minimum door clearances are accurate. Refer to the "Preinstallation Specifications" illustrations on pages 6 and 7.
Be sure your plumber, electrician and cabinet installer have
this information before finishing work is completed.
The Model 315 is a gravity drain model that requires a
drain tube that’s pitched down from the outlet at the back
of the cabinet to the connection to the sanitary sewer.
The Model 315P has a built in drain pump that will pump
water up to a drain point, such as a nearby sink.
Pre-INSTALLATION
Moving the Unit
IMPORTANT NOTE: When you move the unit into the
house using a hand truck or dolly,position the dolly on the
side of the unit and secure the door so it does not open
while transporting the unit.
IMPORTANT NOTE: The floor under the ice maker must
be at the same level as the surrounding finished floor.
Electrical
A 115 volt, 6OHz, 15 amp circuit breaker and electrical
supply are required. A separate circuit is required for each
unit. Follow the National Electrical Code and local codes
and ordinances when installing the receptacle.
The ice maker is supplied with a cord,and may be plugged
into a wall outlet. The ice maker should be the only device
using that circuit.
WARNING
Model 315 is equipped with a 3-prong grounding plug
and they must be plugged into a mating 3-prong
grounding-type wall receptacle.
Do not use an extension cord, or two prong adapter.
Electrical ground is required on this appliance.
Do not under any circumstances remove the power
supply cord ground prong.
5
Plumbing
Rough in the water supply line. Connect a 1/4” OD copper
line to the house supply. Be sure to use an easily accessible shut-off valve between the supply and the appliance.
This shut-off valve should not be installed behind the unit.
Do not use “self-piercing” valves. A saddle valve (part #420-088-0) is available from your distributor/dealer. A line
filter is required when the water supply has a high mineral content. The water supply must maintain 20 to 80 psi of
water pressure.
The water supply and drain should be roughed in and
ready at the point of installation. A wall outlet directly
behind the ice maker will make the installation easier. All
electrical, water and drain connections must conform to
local codes.
IMPORTANT NOTE: Although the Model 315 has been
designed to be serviced in place, in some cases it may be
necessary to pull the unit out for service. For that reason
do not restrict access to the cabinet at the front–top and
bottom.
If a floor is to be installed after the ice maker, shims the
thickness of the floor should be installed under the Model
315 to keep the ice maker level with the floor. Also, allow
1/8" clearance on each side of the cabinet for protruding
screw heads.
INSTALLATIONS ON A SLAB: Use a Model 315P and
pump the water to the point of drainage.Pump models will
pump one story high.
INSTALLATIONS OVER A CRAWL SPACE OR BASEMENT: Either gravity drain or pump model units may be
used, if there is not enough room behind the ice maker for
a drain/waste receptacle, the drain will have to be below
the floor.
WARNING
Shut off the power to the wall outlet.
CAUTION
Any finished flooring should be protected with appropriate material to avoid any damage from moving the
unit.
6
INSTALLATION
Plumbing
Model 315 – Gravity Drain Model
The drain and inlet water tubes must be plumbed before
connecting to the ice maker. All horizontal runs of drain
lines must have a 1/4" per foot fall. An air gap will likely
be required between the ice maker drain tube and the
drain/waste receptacle. A stand pipe with a trap below it
would be acceptable for the drain/waste receptacle.
IMPORTANT NOTE: Poor draining will cause a high rate
of ice melting in the bin.
1) Place ice maker in front of installed location. Adjust
leg levelers to approximately correct position.
2) Remove door with hinges, control knob, control panel,
access panel and lower stainless face plate.
3) Route water inlet line, which should be a 1/4" O.D.
copper tube, from wall through ice maker to the front.
4) Route drain line from wall position through ice maker.
NOTE: if using a long horizontal run (more than 5 feet)
the drain should be vented at back of cabinet.
5) If electrical outlet for ice maker is behind the cabinet,
plug in the ice maker now.
6) Push ice maker into installed position.
7) Cut off water inlet line at required length.
8) Flush water line. Place flare nut on inlet water line and
flare the end of the copper tube.
9) Attach flare nut to the male flare on the inlet water
valve.
10) Cut off the drain tube to the required length.
11) Connect the 5/8" drain tube to the bin drain fitting at
the bottom of the bin. Secure with hose clamps.
Be certain that the drain tube is pushed up well past the
barbs on the drain fitting. If needed to ease installation,
soak the drain hose in hot water just before connecting to
the fitting.
12) Turn on the water supply and check for leaks.
13) Replace door with hinges, control knob, control panel,
access panel and lower stainless face plate. Level as
needed.
IMPORTANT NOTE: All plumbing must meet local codes.
151/4"
(387) MIN.
FRONT VIEW
SHUT-OFF
VALVE
WATER
FILTER
WATER
INLET TUBE
DRAIN
TUBE
TOP VIEW
SHUT-OFF
VALVE
WATER
FILTER
341/2"
(876) NOMINAL
333/4"
(857) MIN.
151/4"
(387) MIN.
24"
(610)
1
/8"(3)
WATER
INLET
TUBE
DRAIN
TUBE
LOCATE DRAIN
WITHIN 2" DIA.
AREA 23" BACK
FROM FRONT
OF UNIT
PRE-INSTALLATION SPECIFICATIONS
MODEL 315 (GRAVITY DRAIN)
Drain Tube
Clamp
Drain
Stand Pipe
Drain Tube Detail
7
INSTALLATION
Plumbing
Model 315P – Pump Model
1) Place ice maker in front of installed location. Adjust
leg levelers to approximately correct position.
2) Remove control knob, control panel and control access
panel.
3) Route water inlet line from wall through ice maker to
the front.
4) Locate coil of 3/8" ID plastic drain tubing secured to
the back of the cabinet.
5) Route plastic drain tube from back of cabinet to drain
connection point.
IMPORTANT NOTE: Often an air gap is required by local
codes between the ice maker drain tube and the drain
receptacle.
6) If electrical outlet for ice maker is behind the cabinet,
plug in the ice maker now.
7) Push ice maker into installed position.
8) Cut off water inlet line at required length.
9) Flush water line. Place flare nut on inlet water line and
flare the end of the copper tube.
10) Attach flare nut to the male flare on the inlet water
valve.
11) Turn on the water supply, and make sure that the ice
maker is plugged in and the power is on.
12) Pour a couple of quarts of water into the storage bin,
the drain pump should start and pump water out.
Check for leaks.
13) Replace control knob, control panel and control access
panel.
14) Level the cabinet as needed.
IMPORTANT NOTE: All plumbing must meet local codes.
PRE-INSTALLATION SPECIFICATIONS
MODEL 315P (PUMP)
FRONT VIEW
SHUT-OFF
VALVE
WATER
FILTER
WATER
INLET TUBE
AIR GAP
DEVICE
DRAIN
TUBE
TOP VIEW
SHUT-OFF
VALVE
WATER
FILTER
WATER
INLET TUBE
DRAIN
TUBE
AIR GAP
DEVICE
24"
(609)
1
/8"(3)
151/4"
(387) MIN.
151/4"
(387) MIN.
341/2"
(876) NOMINAL
333/4"
(857) MIN.
Drain Pump Kit
This ice maker can be ordered with (Model 315P) or without (Model 315) a pump. Models without a drain pump
drain their water by gravity. However, gravity drain models
may be converted to pump models through the installation
of a drain pump kit and drain pump.
Two parts are required for this conversion:
Drain pump kit part number ...............A36892020
Drain pump part number ..................12250321
Specific step-by-step instructions are included with the kit.
INSTALLATION
Completing the Installation
IMPORTANT NOTE: Turn on the water supply and check
all fittings for leaks. Make certain the electrical harness is
attached to the solenoid.
Let your customer know that the ice maker will not fill with
water immediately, and that the first batch of ice produced
should be discarded.Allow 24 to 36 hours to get proper ice
production.
IMPORTANT NOTE: When installed in a corner, the door
swing may be limited due to handle contact with the wall
or cabinet face.
Leveling
Level the unit by turning the leveling legs counterclockwise to raise or clockwise to lower.
HINT: To assist you in adjusting the front leveling legs up
or down, use a standard screwdriver blade and place it in
the front leg.
Securing the Unit
To secure the unit, install two #8 x 1/2" flat head screws
through each hinge. Refer to the illustration below.
88
Kickplate / Grille Installation
Once the Model 315 is secured, you can install the kickplate/grille. As shown in the illustration below, there is
some adjustment to the mounting assembly so this decorative piece can fit flush with the surrounding area.
The unit must be allowed to have ventilation through
these fins.The door panel may hang in front of the fins, but
your kickplate/grille must not cover them.
HINT: The kickplate/ grille can be painted another color, if
you choose. Follow these easy steps:
• Rough up surface to be painted with fine grit sandpaper.
• Wipe with alcohol to ensure it is clean and dry.
• Use an appliance or industrial grade, oil base, high gloss
enamel paint.
CAUTION
DO NOT cover the kickplate/ grille area.
ICE LEVEL CONTROL
H
IG
H
L
O
W
N
O
R
M
A
L
O
F
F
Kickplate/Grille Installation
HIGH
LOW
NORMAL
OFF
Flat Head
Screws
Securing the Unit
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