Sub Zero Ice Maker 3 1 5 I User Manual

M O D E L S 3 1 5 I A N D 3 1 5 I P I C E M A K E R  
INSTALLATION & OPERATION  
 
S U B - Z E RO MODELS 315I A N D 315IP I N S TA L L AT I O N A N D O P E R AT I O N  
THANK YOU  
Congratulations on the purchase of your  
Sub-Zero Model 315I ice maker (Model 315IP  
with drain pump). This restaurant-type ice  
maker is designed for home use. It produces  
the same high quality clear ice that you would  
expect from Sub-Zero.  
IMPORTANT NOTE: 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 respon-  
sibility 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.  
C O N TAC T  
I N F O R M AT I O N  
The importance of the installation of the Model  
315I(P) ice maker cannot be overemphasized.  
Installation should be done by a qualified  
installer.  
Sub-Zero  
Customer Service:  
800-222-7820  
Before you begin the installation process,  
it is recommended that you read the entire  
installation instructions. 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.  
Website:  
subzero.com  
Any questions or problems about the  
installation should be directed to your  
Sub-Zero dealer or Sub-Zero Customer Service  
at 800-222-7820. You can also visit our website  
at subzero.com.  
The Model 315I(P) ice maker is protected by  
a warranty that is one of the finest in the  
industry. Take a moment to read the warranty  
statement on page 23 and refer to it should  
service become necessary.  
The Operation information in this book will  
answer most of your questions about the  
features, operation and maintenance of your  
ice maker. If you have questions that are not  
addressed here, call Sub-Zero Customer  
Service at 800-222-7820 or visit our website  
at subzero.com.  
3
 
S U B - Z E RO MODELS 315I A N D 315IP I N S TA L L AT I O N  
ICE MAKER R E Q U I R E M E N T S  
To properly make and store ice, the Model  
315I(P) requires access to air, potable water,  
115 V AC electrical supply and a drain. The  
ice maker must be installed indoors, in a  
controlled environment.  
Water with fewer impurities will freeze more  
quickly. This occurs because impurities cause  
the water temperature to rise. This concen-  
trates most of the impurities in the ice maker  
water reservoir where they may form hard  
deposits known as scale. The Model 315I(P)  
dilutes the concentration of minerals by over-  
filling the reservoir during the harvest cycle  
(with the excess water flowing down the  
drain). About three quarts of water flow into  
the unit each cycle. About one quart of that  
rinses the reservoir and goes down the drain.  
A I R S U P P LY  
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/grille. It discharges warm  
air out the left side of the kickplate/grille.  
Anything placed in front of the kickplate/grille  
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 (10˚C), and the maximum is 100˚F (40˚C).  
Some impurities will inevitably remain and will  
stick to the inner parts of the ice maker result-  
ing in malformed ice cubes. Built up mineral  
scale can shorten the life of your ice maker.  
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  
cleaning the Ice Making System are on  
page 18.  
WAT E R S U P P LY  
The ice maker requires a continuous supply of  
potable water at no less than 20 psi (1.4 bar) of  
flowing pressure. Static water pressure should  
not exceed 80 psi (5.5 bar). The minimum  
water temperature the ice maker will operate  
in is 40˚F (5˚C), and the maximum is 100˚F  
(40˚C).  
In general, it is always a good idea to filter the  
water. A water filter, if it is 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 reverse osmosis water’s ”aggres-  
siveness”. Deionized water is not recom-  
mended.  
WAT E R Q U A L I T Y  
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 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.  
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.  
If there are questions about the purity of  
your water, contact a local point-of-use water  
specialist in your area for recommendations on  
water treatment.  
Ice made by the Model 315I(P) will have a  
lower mineral content than the water from  
which it was formed.  
4
 
S U B - Z E RO MODELS 315I A N D 315IP I N S TA L L AT I O N  
INSTALLATION S P E C I F I C AT I O N S  
A R E A R E Q U I R E M E N T S  
IMPORTANT NOTE: The floor under the  
ice maker must be at the same level as the  
surrounding finished floor.  
Before moving the ice maker in place, be sure  
the finished opening dimensions, electrical and  
plumbing locations are accurate. Refer to the  
Installation Specifications illustrations on  
pages 7–8. The illustrations below provide  
overall dimensions for Models 315I and 315IP.  
IMPORTANT NOTE: When you move the unit  
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.  
Be sure your plumber, electrician and cabinet  
installer have this information before finishing  
work is completed.  
Any finished flooring should be protected  
with appropriate material to avoid any  
damage from moving the unit.  
Model 315I is a gravity drain model that  
requires a drain tube that is pitched down from  
the outlet at the back of the unit to the sanitary  
sewer connection. Model 315IP has a built in  
drain pump that will pump water up to a drain  
point, such as a nearby sink. Refer to specifica-  
tions on pages 7–8.  
IMPORTANT NOTE: If the ice maker is  
installed in a corner, the door swing may be  
limited due to handle contact with the wall or  
cabinet face.  
OV E R A L L D I M E N S I O N S  
Models 315I and 315IP  
153/16"  
21/8"(54)  
(386)  
M O D E L S 3 1 5 I A N D 3 1 5 I P  
Overall Width  
153/16" (386)  
335/8" (854)  
24" (610)  
19"  
(483)  
Overall Height  
335/8  
"
293/8  
"
335/8  
"
(854)  
(746)  
(854)  
Overall Depth  
Minimum Door Clearance  
Rough Opening Width  
Rough Opening Height  
151/4" (387)  
151/4" (387)  
341/2" (876)  
115˚  
DOOR SWING  
4"(102)  
Minimum Height Required  
(levelers in)  
153/16"  
19"  
333/4" (857)  
24" (610)  
(386)  
(483)  
Rough Opening Depth  
FRONT VIEW  
SIDE VIEW  
TOP VIEW  
Dimensions may vary 1/8" (3).  
Dimensions may vary 1/8" (3).  
Dimensions in parentheses are in  
millimeters unless otherwise specified.  
5
 
S U B - Z E RO MODELS 315I A N D 315IP I N S TA L L AT I O N  
ELECTRICAL R E Q U I R E M E N T S  
PLUMBING R E Q U I R E M E N T S  
A 115 V AC, 60 Hz, 15 amp circuit breaker and  
electrical supply are required. A separate  
circuit is required for each unit.  
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 unit. This shut-off valve  
should not be installed behind the unit. Do not  
use “self-piercing” valves. A saddle valve (part  
#4-20-088-0) is available from your Sub-Zero  
dealer. A line filter is required when the water  
supply has a high mineral content. The water  
supply must maintain 20 psi (1.4 bar) to 80 psi  
(5.5 bar) of water pressure.  
The Model 315I(P) is equipped with a power  
supply cord with a 3-prong grounding plug,  
which must be plugged into a mating 3-prong  
grounding-type electrical outlet.  
I M P O RTA N T  
N OT E  
Follow the National Electrical Code and local  
codes and ordinances when installing the  
receptacle. For location of the electrical supply,  
refer to the Installation Specifications illustra-  
tions on pages 7–8.  
You must follow  
all National  
Electrical Code  
regulations. In  
addition, be aware  
of local codes and  
ordinances when  
installing your  
services.  
The water supply and drain should be roughed  
in and ready at the point of installation. An  
electrical outlet directly behind the ice maker  
will make the installation easier. All electrical,  
water and drain connections must conform to  
local codes. For location of the water supply,  
refer to the Installation Specifications illustra-  
tions on pages 7–8.  
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.  
IMPORTANT NOTE: Although the Model  
315I(P) 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 unit at the front, top  
and bottom.  
Shut off the power to the electrical  
outlet.  
If a floor is to be installed after the ice maker,  
shims the thickness of the floor should be  
installed under the Model 315I(P) to keep the  
ice maker level with the floor. Also, allow 1/8"  
(3) clearance on each side of the unit for  
protruding screw heads.  
Installations on a slab: Use a Model 315IP,  
with built-in drain pump and pump the water  
to the point of drainage. Drain pump models  
will pump one story high.  
Installations over a crawl space or  
basement: Either a gravity drain (Model 315I)  
or a drain pump (Model 315IP) unit may be  
used. If there is not enough room behind the  
ice maker for a drain/waste water receptacle,  
the drain will have to be below the floor.  
IMPORTANT NOTE: All plumbing must meet  
local codes.  
Dimensions in parentheses are in  
6
millimeters unless otherwise specified.  
 
S U B - Z E RO MODELS 315I A N D 315IP I N S TA L L AT I O N  
MODEL 315I G R AV I T Y D R A I N  
The drain and inlet water tubes must be  
plumbed before connecting to the ice maker.  
Refer to the illustrations below. All horizontal  
runs of drain lines must have a 1/4" (6) per 12"  
(305) fall. An air gap will likely be required  
between the ice maker drain tube and the  
drain/waste water receptacle. A stand pipe  
with a trap below it can be used for the  
drain/waste water receptacle.  
9) Attach the flare nut to the male flare on the  
inlet water valve.  
10)Cut the drain tube to the required length.  
11)Connect the 5/8" drain tube to the storage  
bin drain fitting at the bottom of the bin.  
Secure with hose clamps. Be sure that the  
drain tube is pushed up well past the barbs  
on the drain fitting. If needed to ease instal-  
lation, soak the drain hose in hot water just  
before connecting to the fitting.  
IMPORTANT NOTE: Poor drainage will cause  
a high rate of ice melting in the ice storage bin.  
12)Turn on the water supply and check for  
1) Place the ice maker in front of the installa-  
tion opening. Adjust leveling legs to the  
approximate height.  
leaks.  
13)Replace the door (with hinges), control  
knob, control panel, access panel and lower  
face plate. Level the unit as needed.  
2) Remove the door (with hinges), control  
knob, control panel, access panel and lower  
face plate.  
3) Route the water inlet line (1/4" OD copper  
tube) from the wall through the ice maker  
to the front.  
I N S TA L L AT I O N S P E C I F I C AT I O N S  
Model 315I  
1
/
8"(3)  
4) Route the drain line from the wall position  
through the ice maker. If you have a hori-  
zontal run longer than 5' (1.5 m), the drain  
should be vented at the back of the unit.  
WATER  
INLET  
TUBE  
SHUT-OFF  
VALVE  
WATER  
FILTER  
DRAIN  
TUBE  
24"  
5) If the electrical outlet for the ice maker is  
LOCATE DRAIN  
WITHIN 2" DIA.  
AREA 23" BACK  
FROM FRONT  
OF UNIT  
(610)  
behind the unit, plug in the unit.  
6) Position the unit in the installation opening.  
7) Cut the water inlet line to the required  
length.  
151/4  
"
(387) MIN.  
8) Flush the water line. Place the flare nut on  
the water line and flare the end of the  
copper tube.  
TOP VIEW  
Drain Tube  
341/2  
"
(876) NOMINAL  
333/4  
"
(857) MIN.  
Clamp  
Drain  
WATER  
FILTER  
WATER  
INLET TUBE  
SHUT-OFF  
VALVE  
DRAIN  
TUBE  
Stand Pipe  
151/4  
"
(387) MIN.  
FRONT VIEW  
Drain tube detail  
7
 
S U B - Z E RO MODELS 315I A N D 315IP I N S TA L L AT I O N  
MODEL 315IP D R A I N P U M P  
1) Place the ice maker in front of the installa-  
tion opening. Adjust leveling legs to the  
approximate height.  
D R A I N P U M P K I T  
This ice maker can be ordered with a drain  
pump (Model 315IP) or without (Model 315I).  
Models without a pump drain their water by  
gravity. However, gravity drain models may  
be converted to pump models through the  
installation of a drain pump kit.  
2) Remove the control knob, control panel and  
control access panel.  
O P T I O N A L  
C O M P O N E N T S  
3) Route the water inlet line (1/4" OD copper  
tube) from the wall through the ice maker  
to the front.  
The parts required for this conversion are  
available through your Sub-Zero dealer. You  
can also visit the Locator section of our website,  
subzero.com, to obtain information on the local  
parts distributor and/or dealer in your market.  
Detailed installation instructions are included  
with the kit.  
Optional installa-  
tion components  
are available  
4) Locate the coil of 3/8" ID plastic drain tubing  
secured to the back of the unit.  
through your  
5) Route the plastic drain tube from the back  
Sub-Zero dealer.  
You can also visit  
our website at  
subzero.com.  
For installation  
questions, call  
Sub-Zero  
of the unit to the drain connection point.  
IMPORTANT NOTE: Often an air gap is  
required by local codes between the ice maker  
drain tube and the drain receptacle. Refer to  
the illustration below.  
Drain pump kit (#A36892020)  
Drain pump (#12250321)  
Customer Service  
at 800-222-7820.  
6) If the electrical outlet for the ice maker is  
I N S TA L L AT I O N S P E C I F I C AT I O N S  
Model 315IP  
behind the unit, plug in the unit.  
7) Position the unit in the installation opening.  
1
/
8"(3)  
SHUT-OFF  
VALVE  
8) Cut the water inlet line to the required  
WATER  
INLET TUBE  
length.  
9) Flush the water line. Place the flare nut on  
the water line and flare the end of the  
copper tube.  
WATER  
FILTER  
DRAIN  
TUBE  
24"  
(609)  
AIR GAP  
DEVICE  
10)Attach the flare nut to the male flare on the  
inlet water valve.  
11)Turn on the water supply. Make sure that  
the ice maker is plugged in and the power  
is on.  
151/4  
"
(387) MIN.  
TOP VIEW  
12)Pour a couple of quarts of water into the ice  
storage bin; the drain pump should start  
and water should pump out. Check for  
leaks.  
AIR GAP  
DEVICE  
13)Replace the control knob, control panel and  
control access panel. Level the unit as  
needed.  
341/2  
"
(876) NOMINAL  
333/4  
"
DRAIN  
TUBE  
(857) MIN.  
IMPORTANT NOTE: All plumbing must meet  
local codes.  
WATER  
INLET TUBE  
SHUT-OFF  
VALVE  
WATER  
FILTER  
151/4  
"
(387) MIN.  
FRONT VIEW  
Dimensions in parentheses are in  
8
millimeters unless otherwise specified.  
 
S U B - Z E RO MODELS 315I A N D 315IP I N S TA L L AT I O N  
INSTALLATION  
IMPORTANT NOTE: Turn on the water supply  
and check all fittings for leaks. Make sure the  
electrical harness is attached to the solenoid.  
K I C K P L AT E / G R I L L E I N S TA L L AT I O N  
Once the ice maker 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.  
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 for proper ice  
production.  
DO NOT cover the kickplate/grille area.  
L E V E L I N G  
Level the Model 315I(P) by turning the leveling  
legs counterclockwise to raise or clockwise to  
lower.  
The unit must be allowed to have ventilation  
through these fins. The door panel may hang  
in front of the fins, but a decorative kickplate/  
grille must not cover the fins.  
To assist you in adjusting the front leveling  
legs up or down, use a standard screwdriver  
blade and place it in the front leveling leg to  
turn.  
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.  
S E C U R E T H E I C E M A K E R  
To secure the ice maker, install two #8 x 1/2" flat  
head screws through each hinge. Refer to the  
illustration below.  
Wipe with alcohol to ensure it is clean and  
dry.  
Use an appliance or industrial grade, oil  
base, high gloss enamel paint.  
Flat Head  
Screws  
Securing the ice maker  
Kickplate/grille installation  
9
 
S U B - Z E RO MODELS 315I A N D 315IP I N S TA L L AT I O N  
INSTALLATION  
S I D E PA N E L S  
1) Remove the hinge cover.  
2) Remove the door by removing the four  
screws that secure the door to the door  
hinges.  
With Model 315I(P), you must securely fasten  
the side panels to the adjacent cabinets and  
floor.  
3) Remove the door hinges by removing the  
Panels should be fastened to the floor and  
walls using ’Lbrackets (hardware not  
provided). To help you move the unit into  
place, rout out an area in the floor so the ‘L’  
bracket will sit flush with the floor level.  
Brackets and screws are provided for  
mounting the unit to adjoining cabinets and  
side panels.  
four screws that secure them to the unit.  
4) Remove the four screws from the opposite  
hinge side (or left-hand hinge mounting  
holes) and reposition into the right-hand  
hinge mounting holes.  
5) Install the hinges using the left-hand  
cabinet mounting holes.  
6) Install the door using the left-hand door  
R E V E R S E T H E D O O R S W I N G  
mounting holes.  
The hinged side of the door may be reversed  
to the other side if desired.  
7) Remove the two screws which secure the  
upper door panel mounting bracket.  
The Model 315I(P) is shipped with the door  
hinged at the right. The door and hinges are  
designed for placing the hinges on either the  
right or the left side of the unit. Moving the  
hinges to the left in the pre-drilled holes,  
allows the door to pivot from the left side.  
Refer to the illustrations below.  
8) Install the upper door panel mounting  
bracket using the left-hand mounting holes.  
9) Install the left-hand door hinge cover with  
the original screws.  
10)Check the operation of the door by opening  
and closing it.  
IMPORTANT NOTE: The plastic molding  
which covers the top area of the door,  
packaged with the ice maker, is required for  
this procedure.  
Right-hand door swing  
Left-hand door swing  
Dimensions in parentheses are in  
10  
millimeters unless otherwise specified.  
 
S U B - Z E RO MODELS 315I A N D 315IP I N S TA L L AT I O N  
INSTALLATION  
D O O R PA N E L I N S TA L L AT I O N  
Remove the handle side bracket attached to  
the front of the door and set aside.  
You should be sure of the door panel size and  
placement before proceeding with the installa-  
tion. If you have questions, contact your  
Sub-Zero dealer or cabinet supplier. Instruc-  
tions regarding sizing of the door panel are  
provided in the Sub-Zero Design Guide.  
Place the door panel lying face down on a  
protected surface to ensure the front is not  
scratched or damaged.  
PA N E L  
D E S I G N  
Position the plastic template provided flush  
with the upper edge of the door. Be sure you  
are following the exact location for the RH or  
LH door position. Refer to the illustration  
below.  
For door handle hardware, a D-style pull  
centered on the edge opposite the door hinge  
side is recommended. Screw heads may have  
to be countersunk to ensure that the hardware  
does not interfere with the panel fitting flush  
with the unit door.  
Additional panel  
design information  
can be found in  
the Sub-Zero  
Design Guide.  
Check our website  
at subzero.com.  
IMPORTANT NOTE: Remember you are  
viewing the door panel from the back side in  
the illustration. The overall size of the panel  
shown is the minimum size necessary to cover  
the door of the unit. The exact measurements  
of your door panel may vary depending on the  
particular installation you are following.  
M O D E L S 3 1 5 I A N D 3 1 5 I P  
Door Panel Width – 1/8" (3) reveal  
15" (381)  
Door Panel Height – 1/8" (3) reveal  
4" (102) toe space  
Once you have located the proper position for  
the hardware, mark the holes, remove  
template, and drill pilot holes for mounting of  
the hardware. We recommend starting the first  
few holes, positioning the hardware, drilling  
remaining pilot holes, and securing the  
mounting brackets with the #8 x 1/2" screws.  
Refer to the illustrations below.  
303/8" (772)  
5/8" (16) min  
Door Panel Thickness  
Door Panel Weight  
15 lbs (6.8 kg) max  
Dimensions may vary 1/8" (3).  
+_  
Flush with Top and Side  
of Panel  
Right-hand door panel  
Left-hand door panel  
11  
Template position  
 
S U B - Z E RO MODELS 315I A N D 315IP I N S TA L L AT I O N  
INSTALLATION  
9 0 - D E G R E E D O O R S TO P  
Exercise caution when drilling holes for  
mounting hardware. This is especially  
critical with inset panels.  
Model 315I(P) has a 90-degree door stop.  
Follow these steps for installation:  
1) Open the door approximately 80 degrees.  
2) Insert the stop pin into the bottom door  
hinge (pin enters from the top). The pin  
must be inserted until the head has made  
contact with the hinge body. Refer to the  
illustration below.  
Install the door panel by engaging the tabbed  
bracket to the door first and then sliding the  
hinge side hardware over the positioning  
screws. You will have a 1/4" inch adjustment,  
up and down, side to side, with this hardware.  
3) Insert the stop pin into the top door hinge  
(pin enters from the bottom).  
Once you have the door in place, attach the  
remaining #8 x 1/2" screws to the hinge side  
mounting bracket and install decorative caps.  
4) Check for proper operation.  
H I N G E C OV E R I N S TA L L AT I O N  
IMPORTANT NOTE: Install the hinge covers  
after installation of the ice maker is complete.  
The 90-degree door stop must be installed  
prior to installing the hinge covers.  
If the reveal on the hinge side of the door  
panel is less than 1/4", and the panel has  
a square corner, severe finger pinching or  
damage to the unit may occur.  
1) Remove the backing paper of the adhesive  
pads and bond to the hinge.  
2) Install center covers (magnets will secure  
these covers). Refer to the illustration  
below.  
IMPORTANT NOTE: Hinges must be free of  
dirt or grease before applying covers.  
IMPORTANT NOTE: It will be necessary to  
remove the knock-out in the hinge cover when  
the 90-degree door stop is used.  
Door Stop Pin  
Knock-Out  
90-degree door stop  
Hinge cover installation  
12  
 
S U B - Z E RO MODELS 315I A N D 315IP I N S TA L L AT I O N  
INSTALLATION C H E C K L I S T  
IMPORTANT NOTE: To ensure a safe and  
proper installation, the following checklist  
If you are storing or disposing of your old  
should be completed by the installer to ensure  
that no part of the installation has been  
overlooked.  
refrigerator or freezer, please do it safely.  
Remove the doors or tightly secure the  
doors closed. Child entrapment accidents  
can be tragic.  
C O N TAC T  
I N F O R M AT I O N  
Any questions or problems about the installa-  
tion should be directed to your Sub-Zero  
dealer or Sub-Zero Customer Service at  
800-222-7820. You can also visit our website  
at subzero.com.  
Sub-Zero  
Customer Service:  
800-222-7820  
Website:  
subzero.com  
Is the unit operating? If not, is the unit  
plugged in? Check to see if the unit is  
operating before you install.  
Has the unit been properly uncrated, and  
have all packing materials and tape been  
removed from inside the unit?  
Have the installation instructions been  
followed?  
Has the unit been leveled?  
Is the kickplate/grille installed?  
If applicable, is the door panel installed  
properly?  
Does the customer understand the unit’s  
operation?  
Have any installation or service problems  
been noted on the product registration  
card? Instruct the owner to register the  
product.  
Dimensions in parentheses are in  
millimeters unless otherwise specified.  
13  
 
S U B - Z E RO MODELS 315I A N D 315IP F E AT U R E S  
MODELS 315I A N D 315IP F E AT U R E S  
Undercounter ice maker  
Front venting with removable kickplate/  
grille allows unit to be serviced from the  
front  
Model 315I has a gravity drain, while Model  
315IP has a built-in pump to allow water to  
drain into adjacent sink  
Solid core door with magnetic gasket and  
door closer  
WA R R A N T Y  
24" (610) depth-true design for a complete  
integrated look  
UL approved for US and Canada  
Sub-Zero products  
are covered by a  
two, five and  
twelve year resi-  
dential warranty  
(exclusions apply).  
See warranty  
Door accepts custom panels  
Two, five and twelve year residential  
warranty – exclusions apply, see warranty  
at the end of this guide  
Automatic ice maker provides high-quality,  
clear ice  
Ice storage bin capacity of up to 26 lbs  
(12 kg)  
details at the end  
of this guide.  
Automatic defrost  
Reversible door swing  
M O D E L 3 1 5 I  
Ice Maker  
Automatic ice maker  
Water reservoir  
Reversible door hinge  
Ice scoop  
Large capacity  
ice storage bin  
Four sided magnetic  
gasket  
Serial and model  
number plate  
Front venting with  
removable kickplate/grille  
Adjustable ice maker  
control  
14  
 
S U B - Z E RO MODELS 315I A N D 315IP O P E R AT I O N  
ICE MAKER O P E R AT I O N  
I N I T I A L S TA RT- U P  
I C E C U B E S  
1) Remove the control box cover.  
The ice cubes are tapered cylinders about 11/4"  
(32) in diameter at the widest end; taper down  
to 1" (25) wide at the top; and are 11/8" (29)  
high. When the ice maker is adjusted properly,  
there should be a 1/4" (6) indent in the base of  
the cube. The ice will appear wet when fresh  
and may also develop frost on the outside and  
look cloudy. This is normal. The frost will  
disappear when liquid is poured over the ice.  
2) Rotate timer shaft clockwise until the cam is  
in the harvest position (switch button out).  
3) Turn on the water supply.  
4) With unit plugged in, rotate the ice maker  
control knob to the ON position.  
5) Allow the ice maker to operate for one hour,  
and check the size of the cubes; if they are  
not correct, adjust as recommended on  
page 18.  
I C E S TO R AG E B I N  
All restaurant-type ice makers, such as the  
Model 315I(P), operate on this principal: The  
ice storage bin is not refrigerated; instead it’s  
heavily insulated, much like a picnic cooler or  
ice chest. If the ice storage bin were to be  
refrigerated, the ice would freeze together into  
one very large cluster of ice and would begin  
to evaporate. This would yield ice that is very  
poor in quality and difficult to remove from the  
ice maker.  
6) After the cubes are confirmed to be the  
correct size, replace all panels.  
U S I N G YO U R I C E M A K E R  
The ice maker is extremely simple to use; by  
turning the ice maker control knob to the ON  
position. The Model 315I(P) will automatically  
begin to produce ice and will continue to do so  
until the ice storage bin is full.  
The Model 315I(P) will continue to operate  
until ice builds up high enough to contact ther-  
mostat sensor tube in the ice storage bin; then  
it will shut off. Models with a drain pump will  
occasionally pump out melt water when the ice  
maker is off. The pump will only be on for a  
few seconds.  
Use the scoop to remove ice and place the ice  
scoop in the holder provided (do not leave the  
scoop on the ice, as it will gradually disappear  
into the ice).  
The Model 315I(P) will release a batch of eight  
ice cubes about every 30 minutes. At the same  
time the cubes fall into the ice storage bin,  
water will be entering the ice maker and  
draining out.  
R U N T I M E  
The amount of time the Model 315I(P) will run  
to replace melted ice is about two hours per  
day. The amount of time the ice maker will run  
to replace ice removed is dependent upon how  
much ice is removed, how clean the ice maker  
is, the surrounding air temperature and the  
temperature of the water supplied to the ice  
maker. An empty ice maker will usually take  
about 24–36 hours to refill.  
IMPORTANT NOTE: Do not store anything in  
the ice storage bin other than ice; items like  
wine or beer bottles are not only unsanitary,  
but labels may also slip off and plug the drain.  
15  
 
S U B - Z E RO MODELS 315I A N D 315IP O P E R AT I O N  
ICE P RO D U C T I O N  
Ice production has two distinct cycles: freeze  
and harvest. One freeze cycle and one harvest  
cycle will yield a batch of eight ice cubes.  
H OW T H E I C E M A K E R U S E S WAT E R  
The ice maker begins with a fixed charge of  
water that is contained in the reservoir. As the  
water is sprayed against the freezing surface,  
the part of water that does not contain mineral  
impurities will freeze and stick to the ice cup  
molds. The water containing impurities falls  
back into the reservoir. Gradually, during the  
freezing portion of the ice making cycle, the  
water in the reservoir will become highly  
concentrated with mineral impurities.  
The freeze cycle occurs when water is sprayed  
against the freezing surface. The harvest cycle  
occurs when the ice is released and water  
enters the ice maker. A complete cycle takes  
about 30 minutes.  
F R E E Z E C Y C L E  
During the freeze cycle the compressor is  
pumping refrigerant, the fan motor is blowing  
air, and the water pump is circulating water. As  
the refrigerated surface absorbs heat from the  
water sprayed against it, that heat is moved to  
the area where the fan is blowing air. The heat  
is transferred to the air, and the warmed up air  
is discharged from the ice maker. At the same  
time, ice is forming on the refrigerated surface  
(located at the upper back of the ice maker).  
When the refrigerated surface gets cold  
During the harvest cycle fresh water flows into  
the ice maker to dilute the reservoir water and  
to rinse the concentrated minerals down the  
drain.  
enough, the ice maker’s timer will begin to  
turn. When it turns far enough, it will stop the  
freeze cycle and begin the harvest.  
H A RV E S T C Y C L E  
During the harvest cycle the compressor is still  
operating, but the spray pump and fan motor  
have stopped. Two other components have  
been energized: the hot gas valve and the inlet  
water valve. These two valves open and warm  
up the freezing surface, allowing the cubes to  
fall into the ice storage bin. The timer is still  
turning, and when it gets to the end of the  
harvest cycle, the freeze cycle will restart.  
16  
 
S U B - Z E RO MODELS 315I A N D 315IP O P E R AT I O N  
CLEANING  
Make sure that the outside of the unit and  
door, ice storage bin, condenser, ice making  
system and ice scoop are kept clean.  
C L E A N I N G T H E I C E S TO R AG E B I N  
The ice storage bin should be sanitized occa-  
sionally. It is usually convenient to sanitize the  
bin after the ice making system has been  
cleaned, and the ice storage bin is empty.  
Never allow the ice maker to operate without  
regular cleaning. The ice maker will last longer  
if it is kept clean. Regular cleaning should be  
done at least once per year, and preferably  
twice. Some water conditions will dictate more  
frequent cleaning of the ice making system  
and some carpets or pets will dictate more  
frequent cleaning of the condenser.  
S I G N AT U R E  
P O L I S H  
A sanitizing solution can be made of one ounce  
of household bleach and two gallons of hot  
95˚F–115˚F (35˚C–45˚C) water. Use a clean cloth  
and wipe the interior of the ice storage bin  
with the sanitizing solution; pour some of the  
solution down the drain and allow it to air dry.  
Signature Polish  
is available from  
Signature Limited  
Laboratory,  
P. O. Box 13436,  
Dayton, Ohio  
45413-0436, or  
call 877-376-5474  
(toll free).  
E X T E R I O R C L E A N I N G  
C L E A N I N G T H E C O N D E N S E R  
Wipe off any spills on the surface of the door  
and handle as they occur. If anything spilled on  
the door or gasket dries onto the surface, wash  
with soap and warm water to remove. Always  
use a nonabrasive cloth or pad.  
The condenser should be vacuumed two to  
three times per year to remove any lint that  
may have been drawn into the condenser.  
To access the condenser, use a phillips head  
screw driver to remove the kickplate/grille.  
Then, using a soft bristle brush, vacuum to  
remove dust and lint from the condenser. Refer  
to the illustration below for location of the  
condenser.  
To clean the exterior of a stainless steel model,  
use a soft, nonabrasive stainless steel cleaner  
like Signature Polish (see side note) and apply  
with a soft 100% lint-free cloth.  
IMPORTANT NOTE: To avoid bending the  
condenser fins, be sure to vacuum in the  
direction of the fins (up and down).  
For maintenance and cleaning, it is  
recommended that the circuit breaker to  
the unit or the on/off control be shut off.  
Failure to clean the condenser could  
result in temperature loss or mechanical  
failure or damage.  
Condenser  
Condenser location  
17  
 
S U B - Z E RO MODELS 315I A N D 315IP O P E R AT I O N  
I C E M A K E R CLEANING  
I C E M A K E R MAINTENANCE  
C L E A N I N G T H E I C E M A K I N G S Y S T E M  
W I N T E R I Z I N G  
1) Open the door and turn the ice maker  
control knob to OFF. Refer to the illustration  
on page 19 for location of the control knob.  
1) Clean the ice making system.  
2) Turn off the water supply.  
3) Drain the water reservoir. Remove the  
I C E M A K E R  
C L E A N E R  
2) Scoop out all of the ice; either discard it or  
pump hose.  
save it in a ice chest or cooler.  
4) Disconnect the incoming water line at the  
3) Pour four ounces of Sub-Zero ice maker  
cleaner into the ice maker reservoir (see  
side note).  
inlet water valve.  
Sub-Zero ice  
maker cleaner  
(8 oz. bottle) is  
available from  
your Sub-Zero  
dealer. Ask for part  
#19034306.  
5) Remove control box cover and turn the  
timer into the harvest cycle.  
4) Turn the ice maker control to ON.  
6) With the ice maker operating, blow air  
through the inlet water valve; a tire pump  
could do the job.  
5) Allow the ice maker to operate for about  
two hours.  
6) Pour hot water 95˚F–115˚F (35˚C–45˚C) into  
the ice storage bin to melt the ice that has  
formed. That ice will likely be white and  
frosty looking.  
7) Drain pump models should have about  
one-half gallon of RV antifreeze (propylene  
glycol) poured into the ice storage bin  
drain.  
7) Clean the ice storage bin liner of mineral  
scale by mixing some ice maker cleaner  
and hot water, using that solution to scrub  
the scale off of the liner.  
IMPORTANT NOTE: DO NOT use automotive  
antifreeze.  
8) Replace control box cover. Turn the ice  
maker OFF and unplug the unit.  
8) Rinse the liner with hot water.  
To use the ice maker after winterizing, recon-  
nect the pump hose and water line. Repeat the  
initial start-up steps outlined on page 15.  
9) Sanitize the ice storage bin interior.  
10)Replace the ice removed in step 2. The ice  
scoop should be washed regularly; wash it  
just like any other food container.  
I C E M A K E R ADJUSTMENTS  
There are three items that may be adjusted:  
cube size, storage bin ice level and harvest  
time.  
Sub-Zero ice maker cleaner contains acids.  
These compounds may cause burns.  
If swallowed, DO NOT induce vomiting.  
Give large amounts of water or milk. Call  
a physician immediately. In case of skin  
contact, flush with water. Keep out of the  
reach of children.  
IMPORTANT NOTE: Cube size and harvest  
time adjustments should only be done by a  
Sub-Zero authorized service center technician.  
C U B E S I Z E A D J U S T M E N T  
The cube size control should only be adjusted  
to bring the ice cubes to the correct shape; the  
overall size cannot be adjusted. Try to adjust  
the cube size control when the ice maker is in  
the harvest cycle, or in the first ten minutes of  
the freeze cycle.  
18  
 
S U B - Z E RO MODELS 315I A N D 315IP O P E R AT I O N  
1) Open the door and remove the control box  
H A RV E S T T I M E A D J U S T M E N T  
cover.  
The amount of harvest time may be adjusted.  
It is preset from the factory at about three  
minutes, which should be adequate to release  
all cubes and fill the reservoir. If the timer  
needs to be adjusted, follow these steps:  
2) Locate the cube size adjustment screw  
shown in the illustration below. To make  
fuller cubes, turn the screw clockwise about  
1/4 turn. This will make the freezing cycle  
longer.  
1) Unplug the ice maker or disconnect the  
3) To shorten the freezing cycle and make  
cubes that are not as full, turn the adjust-  
ment screw 1/4 turn counterclockwise.  
electrical power.  
2) Remove the kickplate/grille.  
3) Remove the control box cover.  
4) After the next freezing cycle, the cubes  
should have responded to the adjustment;  
if another adjustment is required, do it early  
in the freeze cycle.  
4) Locate the timer shown in the illustration  
below. Loosen the set screw that holds the  
two halves of the timer cam together.  
5) Rotate one half of the cam to open or close  
the lower portion of the cam. More of an  
opening equals more harvest time and less  
of an opening means less harvest time.  
S TO R AG E B I N L E V E L A D J U S T M E N T  
When the ice maker shuts off, the ice level in  
the storage bin should be even with the metal  
tube inside the bin. If the ice in the storage bin  
is too high or too low, turn the ice maker  
control knob to adjust the ice storage bin  
thermostat. Refer to the illustration below.  
6) Tighten the set-screw.  
7) Replace the control box cover and kickplate/  
grille.  
8) Reconnect the electrical power.  
To lower the ice level, turn the knob counter-  
clockwise. To increase the ice level, turn the  
knob clockwise. Usually a 1/8 turn will be  
enough for either adjustment.  
Electrical Shock Hazard—Disconnect  
electrical power before beginning  
removal of parts.  
Control Knob  
Cube Size Adjustment  
Ice maker control knob  
Cube size adjustment  
Harvest time adjustment  
19  
 
S U B - Z E RO TROUBLESHOOTING G U I D E  
TROUBLESHOOTING G U I D E  
P RO B L E M  
P O S S I B L E C A U S E  
P O S S I B L E S O L U T I O N  
Ice maker does not  
operate  
Ice maker is unplugged  
Plug ice maker in  
Breaker tripped or fuse is blown  
Reset breaker or replace fuse –  
if it happens again, call a Sub-Zero  
authorized service center  
S E RV I C E  
C E N T E R  
Ice maker control turned to OFF  
Turn ice maker control to ON  
Storage bin thermostat open,  
keeping ice maker off  
Ice on sensor tube – it is normal for  
ice maker to be off  
Contact your  
Sub-Zero dealer or  
check the Locator  
section of our  
website,  
subzero.com, for  
the authorized  
service center  
nearest you.  
Ice maker in room below 50˚F (10˚C)  
– room must be warmer for ice  
maker to operate  
Storage bin thermostat stuck open,  
must be replaced  
Timer contacts open  
Replace timer  
Ice cubes are too  
large  
Cube size control set too cold  
Adjust cube size control for smaller  
cubes (see page 18)  
Ice cubes are too  
small  
Cube size control set too warm  
Not enough water  
Adjust cube size control for larger  
cubes (see page 18)  
Check water supply – filter may  
be restricted  
Check inlet water valve – inlet screen  
may be restricted  
Cube size control stuck closed –  
timer runs all the time  
Replace timer  
Ice cubes are partially Spray jets partially clogged  
formed – ragged sides  
Clean ice making system with ice  
maker cleaner (see page 18)  
Ice maker makes ice,  
but storage bin does  
not fill with ice  
Storage bin should fill with ice and Clean condenser (see page 17)  
ice maker shut off in 24–36 hours –  
if not, condenser may be dirty  
Storage bin drain may be partially  
restricted  
Clean out drain, check installation  
Air flow to ice maker may be  
obstructed  
Check installation – kickplate/grille  
must be free of obstructions  
Ice cubes are partially Not enough water in reservoir  
formed – white at the  
bottom  
Check water supply – filter may  
may be restricted  
Check inlet water valve – inlet screen  
may be restricted  
Check for water leak in reservoir  
20  
 
S U B - Z E RO TROUBLESHOOTING G U I D E  
TROUBLESHOOTING G U I D E  
P RO B L E M  
P O S S I B L E C A U S E  
P O S S I B L E S O L U T I O N  
Unit operates  
but no ice falling in  
storage bin  
Ice may be stuck in the evaporator Check water supply – filter may  
and the unit is ”frozen up”  
be restricted  
Check inlet water valve – inlet screen  
may be restricted or valve does not  
operate  
Hot gas valve may not operate –  
check and repair or replace  
Harvest time set too short – timer  
needs adjustment (see page 19)  
Too much heat load  
No water spray  
Inlet water valve leaks through,  
must be replaced  
Water pump does not operate, must  
be replaced or check for water  
leak in reservoir  
No airflow  
Fan motor does not operate or fan  
blade is broken, must be replaced  
Condenser completely blocked,  
must be cleaned (see page 17)  
Cube size control will not close  
Defective control, must be replaced  
Inlet water valve leaks through,  
must be replaced or not enough  
refrigerant, call a Sub-Zero  
authorized service center  
Compressor does not operate  
properly or at all  
Start relay or capacitor must be  
replaced  
Call a Sub-Zero authorized service  
center  
Not enough refrigerant  
Restricted system  
Call a Sub-Zero authorized service  
center  
Call a Sub-Zero authorized service  
center  
Hot gas valve leaks through  
Call a Sub-Zero authorized service  
center  
21  
 
SERVICE I N F O R M AT I O N  
SERVICE I N F O R M AT I O N  
If you do need service, be sure to have the  
model and serial number of your unit when  
you call. You’ll find these numbers on the  
model and serial number plate located on the  
left sidewall of the reservoir. For warranty  
purposes, you will also need the date of  
installation and the name of your Sub-Zero  
dealer. Record this information below for  
future reference.  
P RO D U C T R E G I S T R AT I O N  
Register your new Sub-Zero today so that we  
may ensure your satisfaction. You may register  
by one of the following options:  
C O N TAC T  
I N F O R M AT I O N  
1) Mail in the completed Sub-Zero Product  
Registration Card.  
2) Register online at subzero.com  
.
Sub-Zero  
Customer Service:  
800-222-7820  
3) Register by phone by calling the Sub-Zero  
Customer Service Department at  
Model Number  
800-222-7820  
.
Website:  
subzero.com  
The model and serial numbers of your unit  
are printed on the enclosed Sub-Zero Product  
Registration Card. If you provide us with your  
e-mail address, we will send you exciting new  
product updates and recipes as they become  
available, along with information on special  
events.  
Serial Number  
Installation Date  
Sub-Zero Authorized Service Center and Phone  
Sub-Zero Dealer and Phone  
B E F O R E C A L L I N G F O R S E RV I C E  
Before calling a Sub-Zero authorized service  
center, refer to the Troubleshooting Guide on  
pages 20–21. Check the household fuse or  
circuit breaker to see if it has been blown or  
tripped and that the electrical connection to  
the appliance has not been disconnected.  
A power outage may also have caused a  
disruption in service.  
The information and images in this guide are the  
copyright property of Sub-Zero Freezer Company,  
Inc. Neither this book 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 Freezer Company, Inc.  
©Sub-Zero Freezer Company, Inc. all rights  
reserved.  
22  
 
S U B - Z E R O F R E E Z E R C O M PA N Y P R O D U C T S  
L I M I T E D W A R R A N T Y  
RESIDENTIAL USE ONLY  
FULL FIVE YEAR SEALED SYSTEM WARRANTY  
LIMITED SIXTH THROUGH TWELFTH YEAR WARRANTY ON THE SEALED SYSTEM  
FULL TWO YEAR WARRANTY ON TOTAL PRODUCT*  
FULL FIVE YEAR SEALED SYSTEM WARRANTY  
For five years from the date of original installation, your Sub-Zero warranty covers all parts and labor  
to repair or replace any components that prove to be defective in materials or workmanship in the  
sealed system. The sealed system consists of the compressor, condenser, evaporator, drier and all  
connecting tubing.  
FULL TWO YEAR WARRANTY*  
For two years from the date of original installation, your Sub-Zero warranty covers all parts and  
labor to repair or replace any part of the product, that proves to be defective in materials or work-  
manship.  
LIMITED SIXTH THROUGH TWELFTH YEAR SEALED SYSTEM WARRANTY  
From the 6th through the 12th year from the date of original installation, your Sub-Zero warranty  
covers all parts that prove to be defective in materials or workmanship in the sealed system (parts  
only). The sealed system consists of the compressor, condenser, evaporator, drier and all connecting  
tubing.  
TERMS APPLICABLE TO EACH WARRANTY  
All service provided by Sub-Zero under the above warranty must be performed by an authorized  
Sub-Zero service center, unless otherwise specified by Sub-Zero. Service will be provided in the  
home during the normal business hours. This warranty applies only to products installed for normal  
residential use. Details regarding a non-residential warranty are available upon request.  
The warranty applies only to products installed in any one of the fifty states of the United States, the  
District of Columbia or the ten provinces of Canada. This warranty does not cover any parts or labor  
to correct any defect caused by negligence, accident or improper use, maintenance, installation,  
service or repair, including but not limited to improper removal and reinstallation (whether in the unit  
or at a remote location) of the condensing unit.  
THE REMEDIES DESCRIBED ABOVE FOR EACH WARRANTY ARE THE ONLY ONES THAT  
SUB-ZERO WILL PROVIDE, EITHER UNDER THESE WARRANTIES OR UNDER ANY WARRANTY  
ARISING BY OPERATION OF LAW. SUB-ZERO WILL NOT BE RESPONSIBLE FOR ANY CONSE-  
QUENTIAL OR INCIDENTAL DAMAGES ARISING FROM THE BREACH OF THESE WARRANTIES  
OR ANY OTHER WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY.  
Some states do not allow the exclusion or limitation of incidental or consequential damages, so the  
above limitation or exclusion may not apply to you. This warranty gives you specific legal rights and  
you may also have other legal rights, which vary from state to state.  
To receive parts and/or service and the name of the Sub-Zero authorized service center nearest you,  
contact your Sub-Zero dealer, distributor or Sub-Zero Freezer Company, Customer Service Depart-  
ment, P.O. Box 44130, Madison Wisconsin, 53744-4130; check the Locator section of our website,  
subzero.com, or call 800-222-7820.  
*Stainless Steel (classic, platinum and carbon) doors, panels, product frames and stainless interior  
surfaces are covered by a limited 60 day parts and labor warranty for cosmetic defects.  
*Replacement water filter cartridges are not covered by the product warranty.  
23  
 
SU B - Z E RO F R E E Z E R C O M PA N Y, I N C. P. O. B OX 4 4 1 3 0 M A D I S O N , W I 5 3 7 4 4 - 4 1 3 0 8 0 0 - 2 2 2 - 7 8 2 0 S U B Z E RO. C O M  
1 7 3 0 7 9 0 1  
8 / 2 0 0 5  
 

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