Model 315I (UC Ice Maker)
Technical Service
and Parts Manual
Model 315I
(Undercounter Ice Maker)
© SUB-ZERO FREEZER COMPANY INC.
2005 ALL RIGHTS RESERVED
JOB AID #3757320
(Revision B. - August, 2005)
General Information
Model 315I (UC Ice Maker)
SECTION 1
GENERAL INFORMATION
1-1
#3757320 - Revision B - August, 2005
General Information
Model 315I (UC Ice Maker)
INTRODUCTION
This Sub-Zero Technical Service and Parts Manual (Job Aid Part #3757320) for the Model 315W is a compilation of
information provided by the Scotsman Company and has been reprinted by Sub-Zero Freezer Company, Inc., with
the permission of the Scotsman Company. This manual will provide the most recent service information about the
model 315I. This information will enable the service technician to diagnose malfunctions, perform necessary repairs
and return a model 315I appliance to proper operational status.
The service technician should read the complete instructions contained in this manual before initiating any repairs on
a model 315I.
IMPORTANT SAFETY INFORMATION
TECHNICAL ASSISTANCE
Below are Product Safety Labels used in this manual.
The "Signal Words" used are WARNING or CAUTION.
If you should have any questions regarding the 315W
Series and/or this manual, please contact:
When reviewing this manual, please note these different Product Safety Labels placed at the beginning of
certain sections of this manual. You must follow the
instructions given in the boxes of the Product Safety
Labels in order to avoid personal injury and/or product
damage.
Sub-Zero Freezer Company, Inc.
ATTN: Service Department
P.O. Box 44988
Madison, WI 53744 - 4988
Customer Service & Parts / Warranty Claims
Phone #: (800) 222 - 7820
The sample Product Safety Labels below illustrate the
precautions that should be taken when the signal word
is observed.
Technical Assistance
Phone #: (800) 919 - 8324
INDICATES THAT HAZARDOUS OR UNSAFE
PRACTICES COULD RESULT IN SEVERE PERSONAL INJURY OR DEATH.
Customer Service & Technical Assistance
Facsimile #: (608) 441 - 5887
Indicates that hazardous or unsafe practices could
result in minor personal injury, and/or product
damage, and/or property damage.
Service Department E-Mail Address:
[email protected]
Parts / Warranty Claims
Facsimile #: (608) 441 - 5886
Office Hours:
7:00 AM to 7:00 PM Central Time
Monday through Friday
In addition, please pay attention to the signal word
“NOTE”, which highlights information that is especially
important for the topic being covered.
This manual is designed to be used by Authorized Service Personnel only. Sub-Zero Freezer Co., Inc.
assumes no responsibility for any repairs made on Sub-Zero refrigeration units by anyone other than
Authorized Service Technicians.
Information and images contained in this manual are the copyright property of Sub-Zero Freezer Company, Inc.
Neither this manual nor any information or images contained herein may be copied or used in whole or in part
without the express written consent of Sub-Zero Freezer Company, Inc.
© Sub-Zero Freezer Company, Inc, all rights reserved.
#3757320 - Revision B - August, 2005
1-2
Model 315I (UC Ice Maker)
General Information
TABLE OF CONTENTS
Page #
Page #
Section 1 - General Information .............................. 1-1
Section 4 - Maintenance, Cleaning & Adjustments 4-1
Introduction ......................................................................
Important Safety Information ............................................
Technical Assistance ........................................................
Table of Contents ............................................................
Warranty Information ........................................................
Serial Number Tag Information ........................................
Model Description ............................................................
Components / Features ....................................................
Maintenance & Cleaning ..................................................
The Five Things to Keep Clean........................................
Cleaning Outside of Cabinet ............................................
Cleaning & Sanitizing Ice Storage Bin ............................
Cleaning Ice Scoop ..........................................................
Cleaning Condenser ........................................................
Cleaning Ice Making System............................................
Winterizing the Ice Machine ............................................
Adjustments ......................................................................
Cube Size Control Adjustment ........................................
Bin Level Adjustment........................................................
Harvest Cycle Timer Adjustment ......................................
1-2
1-2
1-2
1-3
1-4
1-4
1-5
1-5
Section 2 - Installation Information.......................... 2-1
Pre-Installation Considerations ........................................
Air ....................................................................................
Water Supply ....................................................................
Water Quality....................................................................
Electricity ..........................................................................
Drain ................................................................................
Possible Need for Unit Removal ......................................
Moving the Unit ................................................................
Unit Dimensions ..............................................................
Pre-Installation Specifications (Model 315I ) ....................
Installation ........................................................................
Leveling ............................................................................
Installation Instructions (Model 315I)................................
Pre-Installation Specifications (Model 315IP) ..................
Installation ........................................................................
Installation Instructions (Model 315IP) ............................
Kickplate / Grille Adjustment ............................................
Reversing Door Swing......................................................
Stainless Steel Door Panels ............................................
Door Panel Installation ....................................................
Side Panels ......................................................................
90° Door Stop Installation ................................................
Hinge Cover Installation ..................................................
Initial Start Up ..................................................................
2-2
2-2
2-2
2-2
2-3
2-3
2-3
2-3
2-3
2-4
2-4
2-4
2-4
2-5
2-5
2-5
2-6
2-6
2-7
2-7
2-8
2-8
2-8
2-9
Section 5 - Component Access and Removal ........ 5-1
Component Access and Removal .................................... 5-2
Warnings .......................................................................... 5-2
Cautions .......................................................................... 5-2
Exterior Components........................................................ 5-3
Kickplate .......................................................................... 5-3
Door Panel Mounting Hardware ...................................... 5-3
Door Gasket .................................................................... 5-3
Door .................................................................................. 5-4
Hinge ................................................................................ 5-4
Bin Thermostat Control Knob .......................................... 5-4
Control Panel Assembly .................................................. 5-4
Inner Control Access Panel .............................................. 5-5
Bin Trim Ring .................................................................... 5-5
Upper Cabinet Face Plate & Bin Seal.............................. 5-5
Decor Trim Gasket............................................................ 5-5
Lower Cabinet Face Plate ................................................ 5-6
Hinge Mount Support Bracket .......................................... 5-6
Rear Panel ...................................................................... 5-6
Cabinet / Shell .................................................................. 5-6
Components in Bin Area .................................................. 5-7
Bin Thermostat Bracket .................................................... 5-7
Curtain & Curtain Stiffener................................................ 5-7
Cube Chute ...................................................................... 5-7
Spray Jet Assembly.......................................................... 5-7
O-Ring & Spray Bar.......................................................... 5-8
Circulating / Spray Pump Hoses ...................................... 5-8
Reservoir Drain Hose ...................................................... 5-8
O-Ring & Stainless Steel Drain Nipple ............................ 5-8
Components Behind Panels & Shell ................................ 5-9
Inlet Water Valve .............................................................. 5-9
Harvest Cycle Timer ........................................................ 5-9
Terminal Board ................................................................ 5-9
Hot Gas Solenoid Coil ...................................................... 5-10
Drain Pump Pressure Switch (315IP Only) ...................... 5-10
Section 3 - Theory of Operation .............................. 3-1
Operating Systems ..........................................................
Refrigeration System ........................................................
Water System ..................................................................
Electrical System ..............................................................
Operational Cycles ..........................................................
Ice Making (Freeze) Cycle ..............................................
Harvest Cycle ..................................................................
What to Expect from the Model 315I................................
Ice ....................................................................................
Storage ............................................................................
Run Time ..........................................................................
4-2
4-2
4-2
4-2
4-2
4-2
4-3
4-4
4-5
4-5
4-6
4-6
3-2
3-2
3-3
3-3
3-4
3-4
3-5
3-6
3-6
3-6
3-6
1-3
#3757320 - Revision B - August, 2005
General Information
Model 315I (UC Ice Maker)
Page #
Circulating / Spray Pump.................................................. 5-10
Bin Level Control .............................................................. 5-11
Cube Size Control ............................................................ 5-11
Reservoir Fill Tube............................................................ 5-12
Drain Pump Assembly (315IP Only) ................................ 5-12
Condenser Fan Assembly ................................................ 5-13
High-Side Filter-Drier........................................................ 5-13
Evaporator Assembly ...................................................... 5-14
Hot Gas Valve .................................................................. 5-14
Compressor ...................................................................... 5-15
Condenser ........................................................................ 5-15
Section 6 - Parts Lists & Exploded Views .............. 6-1
Cabinet ............................................................................
Major Assemblies ............................................................
Condensing Unit ..............................................................
Reservoir ..........................................................................
Control Box ......................................................................
Compressor ......................................................................
6-2
6-3
6-4
6-5
6-6
6-7
Section 7 - Troubleshooting Guide .......................... 7-1
Troubleshooting Guide ....................................................
How to Use the Troubleshooting Guide ..........................
Troubleshooting Guide Layout ........................................
Guide ................................................................................
7-2
7-2
7-2
7-3
Section 8 - Technical Data Tables ............................ 8-1
Bin Capacity & Ice Production.......................................... 8-2
Sealed System Information .............................................. 8-2
Electrical Information ........................................................ 8-2
Section 9 - Wiring Diagrams & Schematics ............ 9-1
Model 315I........................................................................ 9-2
Model 315IP .................................................................... 9-3
#3757320 - Revision B - August, 2005
1-4
General Information
Model 315I (UC Ice Maker)
WARRANTY INFORMATION
Warranty Details:
This page contains a summary of the 2, 5 & 12 Year
Warranty that is supplied with every Sub-Zero
Appliance.
• * Total Product Parts includes, but is not limited to the
following:
Control, Circulating Pump, Switches, Fan Motor &
Blade, Drain Tube, Wiring, Water Valve, Hot Gas
Valve, Door hinges, Compressor Electricals, etc. . .
TWO, FIVE & TWELVE YEAR Warranty Summary
• ** Sealed System Parts include the following:
• Two year TOTAL PRODUCT warranty, *parts and
labor.
• Five Year SEALED SYSTEM warranty, **parts and
labor.
• Sixth through Twelfth year LIMITED SEALED SYSTEM warranty, sealed system **parts only.
Compressor, Condenser, Evaporator, Filter-Drier, Heatexchanger, All Tubing That Carries the Freon.
NOTE: Condenser Fan Motor, Freon, Solder and compressor electricals are NOT considered sealed system
parts.
ONE & FIVE YEAR Non-Residential Warranty
Summary (Example: Office, Yacht, etc.)
Warranty Notes:
• Sub-Zero Freezer Company, Inc. assumes no liability
or responsibility for Sub-Zero products that have been
altered in any way, including the use of parts and/or
components not specifically approved by Sub-Zero.
• One Year TOTAL PRODUCT warranty, *parts and
labor.
• Five year LIMITED SEALED SYSTEM warranty,
sealed system **parts only.
• All warranties begin at the time of the unit's initial
installation.
ONE & FIVE YEAR Display / Model Home Warranty
Summary (Display units sold three years after date
of manufacture)
• All Warranty and Service information collected by SubZero is arranged and stored under the unit serial number and/or customer name. Sub-Zero requests that
you have the model and serial number available whenever contacting the factory or parts distributor.
• One Year TOTAL PRODUCT warranty, *parts and
labor.
• Five year LIMITED SEALED SYSTEM warranty,
sealed system **parts only.
• The serial number tag is located in two places, one on
the left wall of the ice bin and one on the unit tray.
(See Diagram below)
Serial Number Tag Information:
Upper serial tag on left side of ice bin
315 I
0000000
115/60/1
3.6
5.0
30
MODEL NUMBER
SERIAL NUMBER
A.C. SUPPLY VOLTAGE
TOTAL LOAD AMPS
REFRIGERANT 134a
DESIGN PRESSURES
UL
JULY
JAPRIL2005
2001
OZ
275
-LO
LISTED
779L
R
C
FREEZER CO., INC.
SUB-ZERO
-HI
UL
R
MADISON, WI
R
PRODUCT SERVICE (800) 222-7820
Lower serial tag on unit tray behind kickplate
MODEL NUMBER
A.C. SUPPLY VOLTAGE
315I
315
115/60/1
SERIAL NUMBER
REFRIGERANT 134a
0000000
5.0
OZ
SUB-ZERO
R
1-5
#3757320 - Revision B - August, 2005
General Information
Model 315I (UC Ice Maker)
MODEL DESCRIPTION
There are two 315I models with different drainage configurations, the Model 315I and Model 315IP:
The model 315I is a gravity drain model that requires a drain tube that is pitched down from the outlet at the back of
the cabinet directly to the sanitary sewer drain.
The model 315IP has a built-in drain pump that will pump water up to a drain point (maximum 10’ rise).
COMPONENTS / FEATURES
DOOR GASKET
CURTAIN
RESERVOIR
BIN
THERMOSTAT
SENSING TUBE
ICE SCOOP
CONTROL
FACE PLATE
CONTROL KNOB
KICKPLATE
#3757320 - Revision B - August, 2005
1-6
Installation Information
Model 315I (UC Ice Maker)
SECTION 2
INSTALLATION
INFORMATION
2-1
#3757320 - Revision B - August, 2005
Installation Information
Model 315I (UC Ice Maker)
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 it rains and/or as it flows through the the
ground. Some of the impurities are solid particles,
referred to as suspended solids, and can be removed
from the water with a fine particle water filter. Other
impurities are chemically bonded to the water molecules, referred to as dissolved solids, and cannot be filtered out.
PRE-INSTALLATION CONSIDERATIONS
To properly make and store ice, the model 315I requires
access to air, potable water, 115 volts AC electricity and
a drain. The ice machine must be installed indoors in a
controlled environment.
Air
The model 315I uses a fan to take in room air through
the front right side of the kickplate/grille and discharge
warm air out the left side of the kickplate/grille. (See
Figure 2-1) Airflow through the kickplate/grille must
never be obstructed. Doing so will cause a decrease in
performance and proficiency, and possible damage to
the ice machine.
Ice made by the model 315I will have a lower mineral
content than the water it is made from. What makes
this possible is the fact that anything dissolved in water
lowers the water’s freezing point. Because of this,
“purer” water will freeze first in the ice making molds.
The minimum air temperature the ice machine will operate in is 50°F/10°C, and the maximum air temperature
is 100°F/38°C.
Most of the impurities or minerals will wash into the
reservoir where they may form hard deposits known as
scale. The model 315I dilutes this concentration of minerals by over-filling the reservoir during the harvest
cycle (with the excess water flowing down the drain with
most of the impurities). Approximately three quarts of
water flow into the unit each cycle. Approximately one
quart of that rinses the reservoir and goes down the
drain carrying the impurities.
Some impurities will inevitably remain, sticking to parts
of the ice machine, causing malformed ice cubes. This
build up of mineral scale can shorten the life of the unit.
To keep the ice machine operating properly, these
impurities or minerals will have to be dissolved regularly
with an acid wash ice machine cleaner. (See Ice
Making System Cleaning instructions in the
Maintenance, Cleaning & Adjustments section of this
manual.)
Cool Air In
Warm Air Out
Figure 2-1. Condenser Air Flow
If the local water supply has high levels of impurities or
minerals, a water filtering system may be needed. A
proper water filter can remove taste and odors as well
as particles from the water before it reaches the ice
machine.
Water Supply
The model 315I requires a continuous supply of potable
water at no less than 20 p.s.i.g. of flowing pressure.
Static water pressure should not exceed 80 p.s.i.g.
The minimum water temperature that the ice machine
will operate with is 40°F/4°C, and the maximum water
temperature 100°F/38°C.
The roughed-in water supply line should be a 1/4” O.D.
copper tube connected to the house supply. An easily
accessible shut-off valve should be placed between the
supply and the appliance. The shut-off valve should not
be behind the unit.
NOTE: “Self-piercing” valves should never be used, as
they are prone to clogging with minerals and sediment.
Regular saddle valves are available from local SubZero distributors/dealers (part #4200880).
A line filter is required when the water supply has a high
mineral content.
NOTE: All plumbing must meet local codes.
#3757320 - Revision B - August, 2005
In-line water filters are the most common. Other methods of water treatment for dissolved solids include
reverse osmosis (R.O.) and polyphosphate feeders. If
a reverse osmosis system is used it 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
the ice machine. Softened water may result in white,
mushy cubes that stick together.
Sub-Zero suggests that if in doubt about the water quality of the local water supply, a local point of use specialist be contacted for recommendations on water filtering
or treatment.
2-2
Installation Information
Model 315I (UC Ice Maker)
Electricity
Possible Need for Unit Removal
The model 315I is supplied with a three prong power
cord to be plugged into a grounded wall outlet. (See
Figure 2-2) The outlet should be on a branch circuit of
115 VAC, 60 Hz, single phase 15 amp, delayed action
fuse or circuit breaker. The ice machine should be the
only device using that circuit.
Although the model 315I 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, the area under
the ice maker must be at the same level as the surrounding finished floor and any decorative molding at
top or bottom must be removable. Also, there must be
a minimum of 1/8” clearance on each side of the unit.
To avoid damage to the finished floor when the unit
is installed, or if the unit needs to be removed for
service purposes, the finished floor should be protected with appropriate material.
Moving the Unit
When the unit is moved into the house, or if it needs to
be removed from the house for service purposes, it recommended to use a hand truck or dolly. Be sure to
position the dolly on the side of the unit and securely
tape the door shut so it does not open while transporting the unit.
Figure 2-2. Power Cord & Wall Outlet
Unit Dimensions
ELECTRIC SHOCK HAZARD
1/8"
15"
1/8"
21 3/8"
Plug into grounded 3 prong outlet.
Do not remove ground prong from power cord.
Do not use a two prong adapter.
Do not use an extension cord.
29 1/8"
33 7/8"
(minimum)
Failure to follow these instructions can result in fire,
electrical shock or death.
Drain
There are two 315I models with different drainage configurations, the model 315I and model 315IP:
The model 315I is a gravity drain model that requires a
drain tube that is pitched down from the outlet at the
back of the cabinet directly to the sanitary sewer drain.
1/8"
15"
1/8"
NOTE: This diagram
shows front view, side
view and top view of
the model 315.
NOTE: All horizontal runs of drain line 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.
19 3/4"
The model 315IP has a built-in drain pump that will
pump water up to a drain point (maximum 10’ rise).
115°
DOOR SWING
NOTE: Poor drainage with either model will cause a
high rate of ice melting in the ice bin.
Though the unit is 15”
wide, there must be a
minimum of 1/8”
clearance on each
side of the unit. Be
sure to reference the
Pre-Installation
Specifications on the
following pages.
NOTE: All plumbing must meet local codes.
2-3
#3757320 - Revision B - August, 2005
Installation Information
Model 315I (UC Ice Maker)
PRE-INSTALLATION SPECIFICATIONS
INSTALLATION
(Model 315I - Gravity Drain Model)
Leveling (Model 315I & 315IP)
Note: The unit must be leveled prior to installation.
There are four leveler legs on a model 315I, one at
each corner. To level the unit, turn the leveler legs
counterclockwise to raise the unit or clockwise to lower
it. (See Figure 2-3)
UP
UP
NOTE: All
plumbing
must meet
local
codes.
UP
Figure 2-3. Unit Leveling
Installation Instructions
(Model 315I - Gravity Drain Model)
1. Place ice maker in front of installation location.
Level unit as described above.
2. Remove door with hinges, kickplate, lower stainless
steel face plate, control knob and control panel.
3. Route inlet water line through back of compressor
area to front of unit, keeping tubing towards left
side.
4. Route drain tube from drain/waste receptacle,
through back of compressor area to front of unit,
keeping tubing towards left side.
NOTE: If using a long horizontal run (more than 5
feet), the drain should be vented at back of unit.
5. Plug power cord into wall outlet.
6. Push ice maker into installation position.
7. Cut inlet water line to required length.
NOTE: It is recommended to flush the inlet water line
at this time by turning water supply on and letting the
water drain into a bucket.
8. Place flare nut onto inlet water line, then flare end
of tube.
9. Attach flare nut to water valve inlet.
10. Cut drain tube to required length.
11. Connect drain tube to bin drain fitting and secure it
with a hose clamp.
12. Turn water supply on and check for leaks.
13. Replace all parts removed in step 2.
#3757320 - Revision B - August, 2005
2-4
Installation Information
Model 315I (UC Ice Maker)
PRE-INSTALLATION SPECIFICATIONS
INSTALLATION
(Model 315IP - Drain Pump Model)
Installation Instructions (Model 315IP - Drain Pump
Model)
1. Place ice maker in front of installation location.
Level unit as described on previous page.
2. Remove door with hinges, kickplate, lower stainless
steel face plate, control knob and control panel.
3. Route inlet water line through back of compressor
area to front of unit, keeping tubing towards left
side.
4. Locate coil of 3/8” I.D. plastic drain tubing secured
to back of unit.
5. Route plastic drain tube to drain connection point.
NOTE: Often an air gap is required by local codes
between the ice maker drain tube and the drain receptacle.
6. Plug power cord into wall outlet.
7. Push ice maker into installation position.
8. Cut inlet water line to required length.
NOTE: All
plumbing
must meet
local
codes.
NOTE: It is recommended to flush the inlet water line
at this time by turning water supply on and letting the
water drain into a bucket.
9. Place flare nut onto inlet water line, then flare end
of tube.
10. Attach flare nut to water valve inlet.
11. Turn water supply on and check for leaks.
12. Switch unit on and pour a couple of quarts of water
into ice storage bin. The pump should start up and
pump water out. Check for leaks.
13. Replace all parts removed in step 2.
Securing the Unit (Model 315I & 315IP)
Once the icemaker is installed, secure the unit to the
cabinet by inserting two #8 x 1/2” flat head screws (supplied with the unit) through the holes in the flange of
each hinge. (See Figure 2-4)
Figure 2-4. Securing Unit to Cabinet
2-5
#3757320 - Revision B - August, 2005
Installation Information
Model 315I (UC Ice Maker)
Kickplate/Grille Adjustment
The Kickplate/Grille can be adjusted up or down to
complete the built-in design. To adjust the grille, loosen
the two mounting screws and move the kickplate/grille
up or down to the desired location, then retighten the
screws. (See Figure 2-5)
Airflow through the kickplate/grille must never be
obstructed. Doing so could cause damage to the ice
machine.
Figure 2-6. Kickplate/Grille Adjustment
Door
Mounting
Screws
Reversing Door Swing
All model 315I units are manufactured with the hinges
on the right side of the door. The door and hinges are
designed to be reversible, so that the hinges can be
moved to the left side of the door. To reverse the door
swing from right to left, follow the instructions below:
1. Remove door panel (if previously installed).
2. Remove door/hinge cover (top hinge-RH) from top
of door by extracting the two mounting screws from
face of door. (See Figure 2-7)
3. Remove door from hinges by extracting the four
door mounting screws, two at bottom hinge, two at
top hinge. (See Figure 2-7)
4. Remove hinges from cabinet by extracting the four
hinge mounting screws, two each hinge.
5. Extract the four filler screws from opposite (left)
hinge mounting holes in cabinet (See Figure 2-7)
and insert them into right-hand hinge mounting
holes of cabinet.
6. Move bottom right hinge to top left hinge mounting
holes and insert two hinge mounting screws
through hinge into mounting holes and tighten.
Then, move top right hinge to bottom left hinge
mounting holes and insert two hinge mounting
screws through hinge into mounting holes and tighten.
7. Attach door to hinges with door mounting screws,
utilizing left-hand door mounting holes.
Hinge
Mounting
Holes
Door/Hinge
Cover
Door
Mounting
Screws
Figure 2-7.
Component Removal for Door Swing Reversal
NOTE: Do not flip door.
8. Extract two screws which secure upper door panel
mount bracket to top right of door, then reattach
bracket to top left of door utilizing left-hand mounting holes. (See Figure 2-7)
9. Attach new hinge cover (top hinge-LH) to top of
door using the two mounting screws removed in
step 2 above.
10. Open and close door to check for proper operation.
#3757320 - Revision B - August, 2005
Upper
Door
Panel
Bracket
2-6
Model 315I (UC Ice Maker)
Stainless Steel Door Panels
Stainless steel door panels are available from local
Sub-Zero distributors/dealers. There are two sizes:
• 15” W x 30-3/8” H x 3/4” T - (part #FP315SS)
• 17-3/4” W x 30-3/8” H x 3/4” T - (part #FP315SS-18)
These panels can be installed as left-hand or right-hand
swing and are equipped with stainless steel handles.
Installation Information
When the reveal on the hinge side of the door panel is
less than 1/4”, use caution when closing the door as
severe finger pinching may occur.
Custom Door Panel Specifications
The door panel specifications listed below are for units
installed in a standard 15-1/4” Wide x 33-3/4” High
rough opening. A minimum of 1/8” reveal should be
allowed around the edge of the panel along with a 4”
toe space.
• Door Panel Width .................................................. 15”
• Door Panel Height .......................................... 30-3/8”
• Door Panel Thickness .......................... 5/8” Minimum
• Door Panel Weight .......................... 15 lbs. Maximum
Door Panel Installation
NOTE: For stainless steel panel, skip to step #4
1. Place door panel face down on a protected surface,
making sure to not damage front of panel.
2. Position plastic drilling template (provided with unit)
on back of door panel, flush with upper edge and
side of door panel. (See Figure 2-8)
NOTE: The size of the panel shown in Figure 2-8 is
just large enough to cover the door. Actual door panel
sizes may vary depending on design/installation variations.
3. Once proper position for mounting hardware has
been located, mark hole locations, remove drilling
template from door panel and drill pilot holes for
mounting hardware.
NOTE: The location of the door handle should also be
determined at this time. It is recommended that the
position of the door handle be centered top to bottom
and towards the side of the panel opposite the hinges.
It may be necessary to countersink the handle mounting holes so the screw heads do not interfere with the
panel fitting flush with the door.
4. Remove handle-side door panel mounting bracket
from face of door and attach it to door panel with #8
x 1/2” screws, provided with unit. (See Figure 2-9)
5. Install door panel on door by engaging tabs of handle-side bracket with slots in face of door.
6. Insert the #8 x 1/2” screws, provided with unit,
through top and bottom panel mounting brackets
into panel, then snug but do not tighten screws.
7. Close door and align door panel with surrounding
cabinetry, then open door and tighten panel mounting screws.
Figure 2-8. Door Panel Drilling Template & Panel
Right-Hand Door Panel
Left-Hand Door Panel
Figure 2-9. Holes Drilled with Handle Side Bracket
2-7
#3757320 - Revision B - August, 2005
Installation Information
Model 315I (UC Ice Maker)
Side Panels
Hinge Cover Installation
Side panels for a model 315I must be securely fastened
to adjacent cabinets or to the floor and wall.
Adhesive and magnetic hinge covers are supplied with
the unit. It is very important to read the notes below
before proceeding to the hinge cover installation
instructions.
NOTE: Side panels should never be attached to the
appliance.
NOTES:
• DO NOT attempt to install the hinge covers before the
90° door stop pins are installed (if used).
If side panels are fastened to the floor or wall, the use
of “L” brackets is recommended (hardware not included
with the unit). For installation and possible service purposes, the area that an “L” bracket will sit on the floor
should be routed out so the bracket sits flush with the
floor.
• If the 90° stop pins are installed, it will be necessary
to remove the knock-outs from the hinge cover opposite the head of the pin. (See Figure 2-11)
• Hinges must be free of dirt and grease before
attempting to install the hinge covers.
90 Degree Door Stop Installation
1. Remove backing paper from adhesive pads of
upper and lower hinge covers, then adhere covers
to top and bottom of each hinge bracket as shown
in Figure 2-11.
2. The center hinge covers are magnetic. Install them
to center of each hinge bracket as shown in Figure
2-11.
Certain installations may require the door of the model
315I to stop at 90° instead of the full 115°. A 90° door
stop pin is supplied with the unit. To install the 90° door
stop pin, follow the instructions below:
1. Open door to approximately 80°.
2. Insert 90° stop pin down through holes in bottom
hinge bracket. (See Figure 2-10)
NOTE: The stop pin must be driven down through the
hole until the head of the pin makes contact with the
bracket.
3. Insert 90° stop pin up through holes in top hinge
bracket.
NOTE: The stop pin must be driven up through the
hole until the head of the pin makes contact with the
bracket.
4. Check for proper door operation.
Figure 2-10. 90° Door Stop Pin at Bottom Hinge
Figure 2-11. Hinge Cover Installation
#3757320 - Revision B - August, 2005
2-8
Installation Information
Model 315I (UC Ice Maker)
Initial Start-Up
When the installation is complete and all electrical and
water hook-ups have been checked, be sure to remove
all tape and packing materials before initial start-up.
Follow the instructions below for initial start-up:
1. Pull the control knob from the ice machine control
shaft. (See Figure 2-12)
2. Remove the control face plate by pulling the top forward to disengage the velcro strips, then lift up.
(See Figure 2-12)
3. Remove the inner control access panel by extracting the three screws, then lower the panel slightly
and pull forward. (See Figure 2-12)
4. Locate the cycle timer and rotate the shaft clockwise until the cam is in the harvest cycle position
(switch button out). (See Figure 2-13)
Inner Control
Access Panel
Control
Face Plate
5. Turn the water supply ON.
Control
Knob
Figure 2-12.
Remove Control Knob, Face Plate & Access Panel
6. Make sure there is power to the unit, then place the
ice machine control knob on the control shaft and
turn the ice machine control knob to the “NORMAL”
position (pointing straight down). (See Figure 2-14)
7. Allow the unit to run for approximately one hour,
then check the size of the ice cubes.
NOTE: To confirm proper cube size, see “Cube Size
Control Adjustment” in the Maintenance, Cleaning &
Adjustment section of this manual. If cube size is incorrect, follow the Cube Size Control Adjustment procedures on that page.
8. After adjusting the cube size control and/or confirming cubes are the correct size, replace the inner
control access panel, the control face plate and the
control knob.
Figure 2-13. Rotate Timer Cam to Harvest Position
Control Knob
Figure 2-14. Control Knob in “NORMAL” Position
2-9
#3757320 - Revision B - August, 2005
Installation Information
#3757320 - Revision B - August, 2005
Model 315I (UC Ice Maker)
2-10
Theory of Operation
Model 315I (UC Ice Maker)
SECTION 3
THEORY OF OPERATION
3-1
#3757320 - Revision B - August, 2005
Theory of Operation
Model 315I (UC Ice Maker)
• Capillary Tube: The warm liquid refrigerant travels
through the skinny capillary tube which is wrapped
around the suction line and accumulator. As the
warm liquid refrigerant travels through the capillary
tube it gives up heat to the cool vapor refrigerant in
the accumulator and to the cool refrigerant gas traveling through the suction line. As the refrigerant in the
capillary tube gives up heat, the pressure drops, so it
is a low-pressure/cool liquid before it enters the evaporator.
OPERATING SYSTEMS
There are three operating systems in the icemaker:
• Refrigeration System
• Water System
• Electrical System
Refrigeration System
The following components have been listed in the order
of refrigerant flow, with an explanation of their function
as part of the refrigeration system. Without delving too
deeply into the operating cycles, which will be covered
later, for our purposes the ice making cycle is used.
(See Figure 3-1)
• Evaporator: A dramatic pressure drop occurs as the
low-pressure/cool liquid refrigerant leaves the small
diameter capillary tube and enters the larger diameter
evaporator tubing, and the refrigerant begins to
vaporize. This vapor travels through the evaporator
absorbing heat from the water being sprayed on the
evaporator. This cool vapor then enters the accumulator.
• Compressor: The compressor creates a high side
and low side pressure difference in the refrigeration
system by compressing the refrigerant gas, thus raising the pressure and temperature. During the ice
making cycle the compressor pushes this high-pressure/high-heat gas to the condenser.
• Accumulator: Another pressure drop occurs as the
cool vaporized refrigerant leaves the evaporator tubing and enters the larger diameter accumulator tubing. Any liquid or vaporized refrigerant that may
remain at this point is converted to gas. The capillary
tube is wrapped around the accumulator to give up
heat to the refrigerant in the accumulator before it
enters the suction line.
• Condenser: The high-pressure/high-heat gas travels
through the condenser, where the heat is dissipated
by cooler air being drawn over the condenser tubing
by the condenser fan. This changes the gas into a
high-pressure/warm liquid that then enters the filterdrier.
• Suction Line: The cool gas travels through the suction line which is also partially wrapped with the capillary tube. As this cool refrigerant gas travels through
the suction line it too absorbs heat from the warm liquid refrigerant traveling through
the capillary tube. This assures
Evaporator
that it is a luke warm gas before it
enters the compressor, where the
process begins again.
• Filter-Drier: The high-pressure/warm liquid travels
through the filter-drier, which removes moisture from
the refrigerant before it enters the capillary tube.
Accumulator
NOTE: There is an additional
component in the ice maker refrigeration system which is used during the harvest cycle, this component is called the hot gas valve.
Its function is described below:
Capillary
Tube
Suction
Line
Hot Gas Valve
(closed)
Compressor
Filter-Drier
Condenser
Figure 3-1. Refrigeration System (During Ice Making Cycle)
#3757320 - Revision B - August, 2005
3-2
• Hot Gas Valve: During a harvest cycle, the hot gas valve interrupts the flow of high-pressure/
high-heat gas from the compressor, diverting it past the condenser, filter-drier and capillary tube,
directly to the evaporator. This
high-pressure/high-heat gas
warms the evaporator so that the
ice cubes release from the cube
molds.
Theory of Operation
Model 315I (UC Ice Maker)
Water System
Circulating
(Spray)
Pump
The water system provides and recirculates the water
for ice production. It also provides a means of
drainage. After the ice is produced, the water system
flushes the impurities and minerals that were in the
water, down the drain. During routine cleaning, the
water system will circulate the ice machine cleaning
solution. (See Figure 3-2)
Water Inlet
Cube Molds
Weep Hole
Spray Jets
Water Tube
Reservoir
Electrical System
Drain
Power for the refrigeration system and the water system is provided by the electrical system. The electrical
system also controls the operational cycles of the ice
maker. The electrical schematic in figure 3-3 below
illustrates the electrical system of a model 315I during
the ice making cycle.
Inlet Water
Valve
Figure 3-2. Water System (During Ice Making Cycle)
L02
NEUTRAL
L02
1
M
L02
FAN
MOTOR
SPRAY
PUMP
MOTOR
S
115 / 60 / 1
CIRCUIT
SCHEMATIC
L02
L02
WATER
SOLENOID
TIMER
MOTOR
HOT GAS
SOLENOID
RELAY CURRENT
R
S
L04
L04
OVERLOAD
C
1
3
OFF
LINE
COMPRESSOR
NO
ON
BIN LEVEL
CONTROL
L05
L03
L03
NC
COMM
TIMER
SWITCH
L05
CUBE SIZE
CONTROL
3
1
2
Figure 3-3. Electrical Schematic of Model 315I (During Ice Making Cycle)
3-3
#3757320 - Revision B - August, 2005
Theory of Operation
Model 315I (UC Ice Maker)
OPERATIONAL CYCLES
There are two operational cycles of the icemaker:
• Ice Making (Freeze) Cycle
• Harvest Cycle
The ice making (freeze) cycle happens when water from the reservoir is sprayed into the ice cube molds at the bottom of the evaporator and the water freezes into cubes. The harvest cycle is when the ice cubes are released from
the cube molds and fresh water enters the reservoir. The complete process takes approximately 30 minutes for
each batch of ice. (1 Freeze Cycle + 1 Harvest Cycle = 1 Batch of 8 Cubes.)
Ice Making (Freeze) Cycle
During the ice making cycle the compressor pumps refrigerant through the system, the condenser fan draws air over
the condenser, and the circulating spray pump sprays water into the cube molds. The refrigerant running through
the evaporator absorbs heat from the water being sprayed into the cube molds and the water begins to freeze. The
heat that the refrigerant absorbs from the water is carried in the refrigerant back to the compressor and then through
the condenser where the heat is transferred from the refrigerant to the air being drown over the condenser tubing by
the condenser fan. This warm air is discharged out through the louvered kickplate. When the cube molds become
cold enough, the ice machine’s timer begins to turn. When the timer turns far enough, it stops the ice making
(freeze) cycle and begins the harvest cycle.
NOTE: The Water System During Ice Making (Freeze) Cycle - The water system initially fills the reservoir with
approximately two quarts of water. During the ice making cycle, water is taken from the reservoir and sprayed into
the cube molds where it begins to freeze. But, due to the fact that water containing mineral impurities needs a lower
temperature to freeze, the impure water falls back into the reservoir and the purer water freezes in the cube molds.
This causes the water in the reservoir to become highly concentrated with mineral impurities towards the end of the
ice making (freeze) cycle.
Circulating
Spray Pump
(ON)
Cube Form
in Molds
Evaporator
(Removing Heat
from Water)
Water Tube
Reservoir
Hot Gas Valve
(CLOSED)
Condenser Fan
(ON)
Compressor
(ON)
Inlet Water
Valve
(CLOSED)
Figure 3-4. Ice Making (Freeze) Cycle
#3757320 - Revision B - August, 2005
3-4
Theory of Operation
Model 315I (UC Ice Maker)
Harvest Cycle
During the harvest cycle the compressor is still operating, but the condenser fan and circulating spray pump are
switched off. The hot gas valve opens, interrupting the flow of warm refrigerant from the compressor to the condenser, diverting it to the evaporator. The water valve also opens, pouring water over the top of the evaporator and
into the reservoir. The warm gas in the evaporator, along with the water pouring over the top of the evaporator,
causes the ice cubes to release from the cube molds and fall into the bin. The ice machine timer continues turning,
and when it turns far enough, it stops the harvest cycle and the freeze cycle begins again.
NOTE: The Water System During Harvest Cycles - During the harvest cycle, approximately three quarts of water
are added to the reservoir, over-filling the reservoir by approximately one quart. The extra quart of water rinses the
reservoir and goes down the drain carrying the mineral impurities.
Circulating
Spray Pump
(OFF)
Water Inlet
Cubes Release
From Molds
Evaporator
(Warm Gas
Circulating)
Weep Hole
Reservoir
Hot Gas Valve
(OPEN)
Drain
Condenser Fan
(OFF)
Compressor
(ON)
Inlet Water
Valve
(OPEN)
Figure 3-5. Harvest Cycle
3-5
#3757320 - Revision B - August, 2005
Theory of Operation
Model 315I (UC Ice Maker)
WHAT TO EXPECT FROM THE MODEL 315I
The model 315I will release a batch of eight ice cubes approximately every thirty minutes. At the same time the
cubes fall into the bin, water will be filling the reservoir and carrying the mineral impurities down the drain.
Ice
The ice cubes are tapered cylinders approximately 11/4” in diameter at the widest end; tapered down to 1”
at the other end; and are 1-1/8” high. (See Figure 3-6)
When the machine is adjusted properly, there should be
a 1/4” indentation in the base of the cube. The cubes
will appear wet when fresh, which is normal. The cubes
may also develop frost on the outside and look cloudy,
this is also normal. (The frost will disappear when liquid is poured over the cubes.)
1"
1/4"
1-1/8"
Storage
1-1/4"
The ice storage bin is not refrigerated. Instead, it is
heavily insulated, much like an ice chest or picnic cooler. If the ice bin were refrigerated, the ice would freeze
together into one large cluster of ice and would begin to
evaporate. This would yield ice that is of very poor
quality and would be very difficult to remove from the
machine.
Figure 3-6. Proper Cube Dimensions
The model 315I will continue to operate until the ice
builds up high enough to contact the bin thermostat
sensor tube, then it will shut off. (See Figure 3-7)
NOTE: The model 315IP will continue to pump the
water from the melted cubes even when the unit is off.
The pump will only be on for a few seconds.
Run Time
The amount of time that the model 315I will run to
replace melted ice (without the door being opened) is
approximately two hours per day. The amount of time
that the ice machine will run to replace ice removed
during use will depend upon how much ice is removed,
how often ice is removed, how clean the ice machine is
and how hot the ambient air and water supplied to the
ice machine are. An empty ice bin will usually take
twenty-four to thirty-six hours to refill.
#3757320 - Revision B - August, 2005
Figure 3-7. Ice Bin Storage Level
3-6
Model 315I (UC Ice Maker)
Maintenance & Cleaning
SECTION 4
MAINTENANCE, CLEANING
AND ADJUSTMENT
INFORMATION
4-1
#3757320 - Revision B - August, 2005
Maintenance & Cleaning
Model 315I (UC Ice Maker)
ICE MAKER MAINTENANCE & CLEANING
Never keep anything in the ice storage bin that is
not ice. Objects such beverage containers may be
unsanitary and their labels might fall off which
could plug the drain.
The ice maker should never be allowed to operate without regular maintenance and cleaning. Keeping the
unit clean and maintained will keep it sanitary, extend
the life of the machine and keep energy consumption
down. Maintenance and cleaning should be performed
approximately every six months. Some water conditions will dictate even more frequent cleaning of the ice
making section, just as some carpets and pets will dictate more frequent cleaning of the condenser.
Cleaning the Ice Scoop
The ice scoop should be cleaned regularly to keep it
sanitary. Clean the scoop with dish soap and warm
water, as you would any other food container.
The Five Things to Keep Clean
• The outside of cabinet and door
• The ice storage bin
• The ice scoop
• The condenser
• The ice making system
Cleaning the Condenser
The condenser is located at the right side of the compressor area, behind the kickplate and it looks similar to
the radiator on a car. To clean the condenser, follow
the directions below:
1. Remove the kickplate by extracting the two mounting screws, one at each side, and pull the kickplate
down and forward.
2. With a brush attachment, vacuum the face of the
condenser off while moving the brush up and down.
(See Figure 4-2)
Cleaning the Outside of Cabinet and Door
To clean the outside of the cabinet and door (including
the door gasket), wipe off spills as they occur. If anything spilled dries onto the surface, wash it off with a
mild dish soap and warm water.
Cleaning/Sanitizing the Ice Storage Bin
Sanitizing the ice storage bin periodically is recommended. To do this, the unit must be switched OFF
and the storage bin emptied. Then, mix a sanitizing
solution consisting of one ounce household bleach with
two gallons of hot (95°/35°C - 115°F/46°C) water.
Using a clean soft cloth, wipe down the interior of the
storage bin with the sanitizing solution (See Figure 4-1)
and pour some of the solution down the bin drain.
Rinse the interior of the storage bin with clean hot water
and allow it to air dry before restarting the unit.
Do not bend the metal fins of the condenser, doing
so will restrict airflow through the condenser, possibly causing mechanical failure of the ice maker.
3. After the condenser is clean, reattach the kickplate
with the mounting screws.
With brush
attachment,
vacuum face
of condenser
while moving
brush up and
down.
NOTE: It is recommended that cleaning/sanitizing the
ice storage bin be performed immediately after the ice
making system has been cleaned. (See next page.)
Sanitize ice
storage bin with
solution of 1
ounce bleach, 2
gallons hot
water and clean
soft cloth.
Condenser
Figure 4-2. Condenser Cleaning
Figure 4-1. Cleaning/Sanitizing Ice Storage Bin
#3757320 - Revision B - August, 2005
4-2
Model 315I (UC Ice Maker)
Maintenance & Cleaning
Cleaning the Ice Making System
Though the water system flushes away mineral impurities during the harvest cycle, some impurities will inevitably
remain, sticking to parts of the ice machine, causing malformed ice cubes. This build up of mineral scale can shorten the life of the unit.
To keep the ice machine operating properly, these impurities or minerals will have to be dissolved regularly with ice
machine cleaner. (Sub-Zero part #19034306)
3. Pour four ounces
of Ice Machine
Cleaner (part
THE ICE MACHINE CLEANER SOLD BY SUB-ZERO
#19034306) into
CLEANER
CONTAINS ACIDS WHICH MAY CAUSE BURNS.
ice maker water
ALWAYS WEAR HEAVY RUBBER GLOVES AND
reservoir.
EYE PROTECTION WHEN WORKING WITH ICE
(See Figure 4-5)
MACHINE CLEANER.
IF ICE MACHINE CLEANER CONTACTS SKIN,
FLUSH WITH WATER.
Figure 4-5.
IF ICE MACHINE CLEANER CONTACTS EYES,
Pour Cleaner into Reservoir
FLUSH WITH LARGE AMOUNTS OF WATER AND
CONTACT PHYSICIAN IMMEDIATELY.
4. Turn ice machine
control knob to
IF SWALLOWED, DO NOT INDUCE VOMITING.
ON and allow to
DRINK LARGE AMOUNTS OF WATER OR MILK.
run for approxiCALL PHYSICIAN IMMEDIATELY.
mately two hours
KEEP ICE MACHINE CLEANER OUT OF REACH
(four ice making
OF CHILDREN.
cycles).
(See Figure 4-6)
To clean the ice making system, follow the instructions
below:
ICE MACHINE
1. Turn ice machine
control knob to
OFF.
(See Figure 4-3)
Figure 4-6. Control Turned ON
for Two Hours
5. Turn ice machine
control knob to
OFF, then pour
hot (95°/35°C 115°F/46°C)
water into ice
storage bin to
melt ice that has
been produced.
(See Figure 4-7)
Figure 4-3. Control Turned OFF
2. Scoop all ice out of
storage bin and either
discard it or save it in
an ice chest or cooler.
(See Figure 4-4)
115°
95°
Figure 4-7.
Pour Hot Water into Bin
6. Clean bin liner of mineral scale by mixing a small
amount of ice machine cleaner with hot water.
Using a clean soft cloth, wipe down bin liner with
this solution, then rinse with clean hot water.
7. Clean/sanitize ice storage bin as described earlier.
8. Turn ice machine control knob to ON and replace
ice removed in step 2.
Figure 4-4. Empty Bin
4-3
#3757320 - Revision B - August, 2005
Maintenance & Cleaning
Model 315I (UC Ice Maker)
Winterizing the Ice Machine
The instructions below are for those units installed in
homes left unoccupied for extended periods of time during winter months. If the ice maker is in a residence
used year round, these directions need not be followed.
Spray Pump
1. Clean the ice making system, condenser and ice
storage bin as described on the preceding pages.
2. Turn off the water supply to the unit.
3. Locate the bottom hose that runs from the circulating/spray pump to the reservoir. Loosen the hose
clamp on that hose and disconnect the hose from
the reservoir. (See Figure 4-8) This will drain the
reservoir.
Disconnect
this hose
Reservoir
Figure 4-8. Emptying Water from Reservoir
4. Pull the control knob from the ice machine control
shaft. (See Figure 4-9)
5. Remove the control face plate by pulling the top forward to disengage the velcro strips, then lift up.
(See Figure 4-9)
6. Remove the inner control access panel by extracting the three screws, then lower the panel slightly
and pull forward. (See Figure 4-9)
7. Locate the water valve and disconnect the inlet
water line from the water valve. (See Figure 4-10)
Inner Control
Access Panel
8. Locate the cycle timer and rotate the shaft clockwise until the cam is in the harvest cycle position
(switch button out). (See Figure 4-11)
Figure 4-9.
Remove Control Knob, Face Plate & Access Panel
9. With the appliance operating, blow air through the
water valve with a tire pump or similar device. This
will purge the valve and water system of water.
Control
Face Plate
Control
Knob
Water Valve
10. If winterizing a model 315IP (with drain pump), pour
1/2 gallon of “RV antifreeze” (propylene glycol)
down the bin drain.
Do not use automotive antifreeze as this is
unsanitary and may damage the appliance. The
antifreeze must be propylene glycol.
Inlet Water Line
Figure 4-10. Disconnect Water Line
11. Switch the unit to OFF, prop the door open and disconnect power to the ice maker.
Figure 4-11. Rotate Timer Cam to Harvest Position
#3757320 - Revision B - August, 2005
4-4
Maintenance & Cleaning
Model 315I (UC Ice Maker)
ADJUSTMENTS
Adjusting
Screw
There are three items that may be adjusted: Cube
Size, Harvest Cycle Time and Bin Ice Level.
NOTE: Cube Size and Harvest Cycle Time
Adjustments should only be performed by a qualified
technician.
Cube Size Control Adjustment
The cube size control should only be adjusted to bring
the cubes to the correct shape. The actual overall size
cannot be adjusted. This adjustment should be performed when the ice machine is in the harvest cycle or
within the first ten minutes of the freeze cycle.
Follow the steps below to adjust the cube size:
1) Open the door and remove the control knob, the
control face plate and the inner control access
panel. (See Figure 4-12)
Figure 4-13. Turn Cube Size Adjustment Screw
TOO
BIG
Inner Control
Access Panel
Control
Face Plate
Control
Knob
Figure 4-12.
Remove Control Knob, Face Plate & Access Panel
2. Locate the cube size adjustment screw. (See
Figure 4-13)
a. To make the cubes fuller, turn the screw clockwise approximately 1/4 turn. This will increase
the freeze cycle time.
b. To shorten the freeze cycle time and decrease
the fullness of the cubes, turn the screw counterclockwise approximately 1/4 turn.
3. After the following freeze cycle the cubes should
have responded to the the adjustment. (See Figure
4-14 for proper cube size) If further adjustments
are required, perform the adjustments early in the
freeze cycle.
CORRECT
SIZE
TOO
SMALL
Figure 4-14. Ice Cubes
4-5
#3757320 - Revision B - August, 2005
Maintenance & Cleaning
Model 315I (UC Ice Maker)
Bin Ice Level Adjustment
When the ice machine shuts off, the ice level in the bin
should be even with the metal tube inside the bin. If
the ice in the bin is too high or too low, turn the ice
machine control knob to adjust the bin thermostat
accordingly. See instructions below:
1. To lower the ice level, turn the control knob counterclockwise. Usually 1/8 turn will be enough. (See
Figure 4-15)
2. To increase the ice level, turn the control knob
clockwise. Usually 1/8 turn will be enough. (See
Figure 4-16)
Figure 4-15. Decrease Ice Level
Harvest Cycle Time Adjustment
The harvest cycle time is set at the factory for approximately three minutes, which should be adequate to
release all the cubes and fill the reservoir. If the timer
needs to be adjusted, follow the directions below:
1. Disconnect electrical power to the unit.
ELECTRICAL SHOCK HAZARD.
POWER TO THE UNIT MUST BE DISCONNECTED BEFORE ATTEMPTING THIS ADJUSTMENT.
Figure 4-16. Increase Ice Level
2. Remove the control knob, the control face plate and
the inner control access panel. (See Figure 4-17)
3. Locate the timer and loosen the set screw that
holds the two halves of the timer cam together.
4. Rotate one half of the cam to either open or close
the lower portion of the cam. More open increases
harvest time, less open decreases harvest time.
(See Figure 4-18)
5. Tighten the set screw and replace the control knob,
the control face plate and the inner control access
panel.
6. Reconnect power to the unit.
Inner Control
Access Panel
Control
Face Plate
Control
Knob
Figure 4-17.
Remove Control Knob, Face Plate & Access Panel
Timer Set Screw
Figure 4-18. Loosen Set Screw
#3757320 - Revision B - August, 2005
4-6
Model 315I (UC Ice Maker)
Component Access/Removal
SECTION 5
COMPONENT ACCESS
AND REMOVAL
5-1
#3757320 - Revision B - August, 2005
Component Access/Removal
Model 315I (UC Ice Maker)
COMPONENT ACCESS AND REMOVAL
This section explains how to access and remove components in a model 315I ice maker.
This section is arranged as follows: Exterior components; followed by the internal components; followed by compressor area components. An attempt has been made to arrange these procedures in such a way as to simulate
which components would need to be removed first in order to gain access to other components. When following a
component removal procedure, it may be necessary to reference another component removal procedure listed earlier in this section.
NOTE: Before continuing, please take note of the WARNINGS and CAUTIONS below.
TO AVOID ELECTRIC SHOCK, POWER TO THE UNIT MUST BE DISCONNECTED WHENEVER ACCESSING
AND/OR REMOVING COMPONENTS POWERED BY ELECTRICITY OR COMPONENTS NEAR OTHER ELECTRICAL COMPONENTS.
•
If removing or disconnecting door hinge assemblies, remember they are spring loaded and may
recoil quickly when released.
•
If working in the compressor area, remember that compressor and tubing may be hot.
•
If working on or around the condenser, remember that condenser fins are sharp.
#3757320 - Revision B - August, 2005
5-2
Model 315I (UC Ice Maker)
Component Access/Removal
EXTERIOR COMPONENTS
Kickplate
Kickplate Removal
The kickplate is held in place with two screws, one at
each side. To remove the kickplate, extract the screws
and pull the kickplate forward. (See Figure 5-1)
Figure 5-1. Kickplate Removal
Door Panel Mounting Hardware and Upper
Door/Hinge Cover Removal
Door/Hinge
Cover
The handle-side panel mounting bracket is attached to
the back side of the door panel with screws. The tabs
of the handle-side bracket then fit into slots in the face
of the door. The top and bottom panel mounting brackets are held to the front of the door with screws. The
panel is secured to the top and bottom brackets by
screws that pass through the brackets into the back of
the panel. The upper door/hinge cover is also mounted
to the face of the door with screws.
Top
Bracket
To access these components, the door panel will need
to be removed. Begin by opening the door and extracting the door panel mounting screws from the bottom
and top brackets. Then, slide the panel towards the
hinge side to disengage the handle-side bracket from
the slots in the door.
Door
l
Pane
With the door panel off, remove the top and bottom
panel mounting brackets and the upper door/hinge
cover by extracting their mounting screws from the face
of the door. Remove the handle-side bracket from the
back of the door panel by extracting the panel mounting
screws. (See Figure 5-2)
Bottom Bracket
Handle-Side Bracket
Figure 5-2. Panel Mount Hardware
& Upper Door/Hinge Cover Removal
Door Gasket Removal
The door gasket has a rib on its back side that fits into
a channel in the door liner. To remove the door gasket,
open the door and pull the gasket from the door liner.
(See Figure 5-3)
Door Gasket
Figure 5-3. Door Gasket Removal
5-3
#3757320 - Revision B - August, 2005
Component Access/Removal
Model 315I (UC Ice Maker)
Door Removal
The door is held in place by screws that pass through
the top and bottom hinges into the face of the door. To
remove the door, the door panel will need to be
removed first. With the door closed, extract the door
mounting screws from the top and bottom hinges (two
each hinge) and pull the door from the unit. (See
Figure 5-4)
Door
Door
Mounting
Screws
NOTE: To remove the door with the hinges, see Hinge
Removal below.
Hinge Removal
Two screws at each hinge secure the hinges to the unit.
To remove the hinges, open them fully and extract the
hinge mounting screws. (See Figure 5-5)
Figure 5-4. Door Removal
Bin Thermostat Control Knob Removal
Hinge
The bin thermostat control knob fits over the shaft of the
bin thermostat. To remove the knob, pull it straight forward off of the control shaft. (See Figure 5-6)
Control Panel Assembly Removal
Hinge
Mounting
Screws
The control panel assembly has a flange at the bottom
that sits behind the lower cabinet face plate. Adhered
to the top rear of the control panel are two halves of
dual lock fastener pads (similar to velcro) which mate
up with the other halves of the dual lock fastener pads
adhered to the bottom flanges of the upper cabinet face
plate.
To remove the control panel assembly, the bin thermostat control knob needs to be removed first. Then pull
the top of the control panel forward to disengage the
dual lock fastener pads and lift the panel up. (See
Figure 5-6)
Hinge
Figure 5-5. Hinge Removal
Control
Panel
Control
Knob
Figure 5-6. Control Knob and Panel Removal
#3757320 - Revision B - August, 2005
5-4
Model 315I (UC Ice Maker)
Component Access/Removal
Inner Control Access Panel Removal
The inner control access panel is behind the control
panel assembly. The access panel is held in place with
three screws that pass through the panel into the unit
cabinet/shell, one at top center of the panel and one at
each side.
To remove the inner control access panel, the control
knob and control panel assembly must first be removed.
Then, extract the three panel mounting screws and pull
the top of the panel forward while lifting up. (See
Figure 5-7)
Access
Panel
Figure 5-7. Inner Control Access Panel Removal
Bin Trim Ring Removal
The bin trim ring fits into the opening of the upper cabinet face plate and extends into the bin area. Tabs
behind the outer flange on the trim ring hold the ring to
the upper cabinet face plate, and a bead of permagum
is placed behind the outer flange of the trim ring to prevent it from rattling.
To remove the bin trim ring, flex it inward at the top and
sides while pulling forward, this will disengage the tabs
from the upper cabinet face plate. (See Figure 5-8)
Top Hinge Mount
Support Bracket
Bin Seal
Upper Cabinet Face Plate & Bin Seal Removal
The bin seal is a 3/4” thick styrofoam sheet cut to
approximately the same size and shape as the upper
cabinet face plate. The bin seal is sandwiched between
the face plate and the cabinet.
The upper cabinet face plate is attached to the cabinet
with screws: two screws pass through the top hinge and
the face plate into the top hinge mount support bracket;
two screws pass through the face plate at the upper
corner on the handle side and one screw at each bottom corner pass through flanges into the cabinet/shell.
To remove the upper cabinet face plate and bin seal,
the control panel assembly, door, hinges and bin trim
ring must be removed first. Then, extract the two
screws at the upper corner on the handle side and the
two screws at each bottom corner. Now, pull the face
plate and bin seal forward. (See Figure 5-8)
Upper Cabinet Face Plate
Bin Trim
Ring
Figure 5-8. Bin Trim Ring,
Upper Cabinet Face Plate and Bin Seal Removal
Decor Trim Gasket Removal
The decor trim gasket fits over the edge of the
cabinet/shell at the opening of the bin. A screw at the
top of the opening and one at the bottom of the opening
help to hold the gasket in place.
To remove the decor trim gasket, the control panel
assembly, door, top hinge, bin trim ring, upper cabinet
face plate and bin seal must be removed first. Then,
loosen the screws at top and bottom center of the bin
opening and pull the gasket from the edge of the cabinet/shell. (See Figure 5-9)
Loosen
these
screws
Decor
Trim
Gasket
Figure 5-9. Decor Trim Gasket Removal
5-5
#3757320 - Revision B - August, 2005
Component Access/Removal
Model 315I (UC Ice Maker)
Lower Cabinet Face Plate Removal
The lower cabinet face plate is attached to the cabinet
with screws: two screws pass through the bottom hinge
and the face plate, and two screws pass through the
face plate on the handle side. All four screws then
attach to the bottom hinge mount support bracket
To remove the lower cabinet face plate, the door must
be removed first. Then, extract the two screws on the
handle side and pull the face plate forward. (See
Figure 5-10)
Lower Face
Plate
Hinge Mount Support Bracket Removal
The upper and lower hinge mount support brackets are
secured to the cabinet/shell with screws.
To remove the hinge mount support brackets, the door,
bin trim ring, upper cabinet face plate, bin seal and
lower cabinet face plate must be removed first. Then,
extract the bracket mounting screws. (See Figure 5-11)
Figure 5-10. Lower Cabinet Face Plate Removal
Rear Panel
Cabinet/Shell
Rear Panel Removal
The rear panel is held to the back of the unit with
screws. To remove the rear panel, extract the panel
mounting screws and pull the panel from the unit. (See
Figure 5-11)
Panel
Mount
Supports
Cabinet/Shell Removal
The cabinet/shell is secured to the rest of the unit with
screws along the bottom of both sides of the unit,
screws at the top and bottom of the bin opening and
mounting screws for some of the exterior components.
To remove the cabinet/shell, the rear panel, kickplate,
control knob, control panel assembly, inner control
access panel, door, hinges, bin trim ring, upper cabinet
face plate, bin seal and lower cabinet face plate must
be removed first. Then, extract the screws at the bottom and top of the bin opening. Extract the screws
along the bottom of both sides of the unit and lift the
cabinet/shell up off of the base frame. (See Figure 511)
#3757320 - Revision B - August, 2005
Base Frame
Figure 5-11. Hinge Mount Support Bracket,
Rear Panel & Cabinet/Shell Removal
5-6
Component Access/Removal
Model 315I (UC Ice Maker)
COMPONENTS IN BIN AREA
Bin Thermostat Bracket Removal
Push bracket back;
lift front up;
pull forward.
The bin thermostat bracket is a hollow cylindrical tube
which holds the bin thermostat control bulb. The bracket fits into holes, one each in the front wall and rear wall
of the bin.
To remove the bin thermostat bracket, push the bracket
back into the hole in the rear bin wall until the front of
the bracket clears the hole in the front wall. Then, lift
the front of the bracket up and pull it from the hole in
the rear wall. (See Figure 5-12)
Figure 5-12. Bin Thermostat Bracket Removal
Curtain and Curtain Stiffener Removal
The curtain and curtain stiffener are held to the reservoir with screws that pass through the front of the reservoir and stiffener, then into the bracket of the curtain.
Curtain
To remove the curtain and stiffener, extract the curtain
mounting screws and pull the curtain and stiffener from
the reservoir. (See Figure 5-13)
Curtain
Stiffener
NOTE:
Bottom edge
must angle
to rear
Cube Chute Removal
The cube chute has two notches at its rear flange that
fit over the stems of the spray jet bases. The spray jet
bases are then tightened down to sandwich the rear
flange of the chute between the bottom flat surface of
the jet base and the reservoir wall.
Screw
Reservoir
front
Figure 5-13. Curtain & Curtain Stiffener Removal
Cap/Nozzle
To remove the cube chute, loosen both spray jet bases
and pull the cube chute forward. (See Figure 5-14)
Spray Jet
Assembly
Spinner
Jet Base
Spray Jet Assembly Removal
A spray jet assembly consists of a cap/nozzle, spinner
and jet base. The nozzle screws onto the base, captivating the spinner. The stem of the jet base passes
down through the a notch in the cube chute, a hole in
the reservoir and an O-ring, then is threaded into the
spray bar assembly tubing.
Reservoir
To remove the nozzle and access the spinner, unscrew
the nozzle counterclockwise off of the jet base.
To remove the jet base, or the spray jet assembly, use
a 5/8” wrench to unscrew the stem of the jet base from
the spray bar assembly tubing. (See Figure 5-14)
Spray Bar
Assembly
Cube Chute
Figure 5-14. Cube Chute & Spray Jet Assy Removal
5-7
#3757320 - Revision B - August, 2005
Component Access/Removal
Model 315I (UC Ice Maker)
O-Ring and Spray Bar Assembly Removal
The spray bar is a copper tubing assembly with one
inlet port and two outlet ports. The inlet fits inside the
circulating/spray pump discharge tube. An O-ring is
positioned at the top of each spray bar outlet port. The
jet base stems pass down through the reservoir wall
and the O-rings and then screw into the outlet ports,
sandwiching the O-rings which seal the connection.
NOTE: The use of a mirror will help in the following
removal procedures.
To remove an O-ring, extract the appropriate jet base
and pull the O-ring from the top of the spray bar tubing.
To remove the spray bar assembly, extract both spray
jet assemblies or jet bases and remove the O-rings.
With a pliers, depress the ends of the hose clamp at the
spray bar inlet and pull the spray bar from the the circulating/spray pump discharge tube. (See Figure 5-15)
Circulating/Spray
Pump
O-Ring
Hoses
Hose
Clamp
Circulating/Spray Pump Hose Removal
There are three hoses connected to the circulating
spray pump nipples. The bottom hose is the pump inlet
hose, leading from the reservoir bottom nipple. The
second hose up is the spray discharge hose leading to
the spray bar assembly. The top hose on the pump
leads to the top center reservoir nipple. The purpose of
the top discharge hose is to bypass the spray discharge
hose if it were to become clogged or air-locked.
NOTE: The use of a mirror will help in the following
removal procedures.
To remove a pump hose, depress the ends of the hose
clamp on the hose and pull the hose off of the nipples
and/or spray bar assembly. (See Figure 5-15)
Spray Bar
Assembly
Figure 5-15. O-Ring, Spray Bar and Hose Removal
S.S.
Nipple
Reservoir Drain Hose Removal
The reservoir drain hose fits between the top right
reservoir nipple and the ice bin drain fitting.
NOTE: The use of a mirror will help in the following
removal procedures.
To remove the drain hose, pull it off of the top right
reservoir nipple and the drain fitting. (See Figure 5-16)
O-Ring
O-Ring and Stainless Steel Drain Nipple Removal
The stainless steel drain nipple is inserted through the
back of the top right reservoir nipple, up to the nub on
the nipple. An O-ring is then placed over the stainless
nipple inside the reservoir.
NOTE: The use of a mirror will help in the following
removal procedures.
To remove the stainless steel nipple, the drain hose
must be removed from the top right reservoir nipple
first. Then, remove the O-ring inside the reservoir and
pull the stainless steel nipple out through the back of
the reservoir top right nipple. (See Figure 5-16)
#3757320 - Revision B - August, 2005
Spray Jet
Assembly
Drain
Hoses
Figure 5-16. Drain Hose, O-Ring & SS Nipple
Removal
5-8
Component Access/Removal
Model 315I (UC Ice Maker)
COMPONENTS BEHIND PANELS AND
SHELL
Outlet
Valve
Inlet Water Valve Removal
Inlet
The inlet water valve is attached to the left side of the
control box with screws. The inlet and outlet water lines
are connected to the valve with compression fittings.
To access the inlet water valve, remove the control
panel and inner access panel.
Valve
Electrical Plug
Before removing the water valve, shut off the water
supply and disconnect power to the unit. Then, unplug
the valve electrical leads. With a wrench, disconnect
the inlet water line from the valve. Extract the valve
mounting screws, pull the valve forward and disconnect
the outlet water line. (See Figure 5-17)
Figure 5-17. Water Valve Removal
Ice Thickness
Control
Control
Face Plate
Harvest Cycle Timer & Switch Removal
The harvest cycle timer switch is attached to the timer.
The timer is attached inside the control box with screws
and spacers. Three wires are connected to the switch.
One electrical lead from the timer runs to the terminal
board, the other runs to the cube size control.
Cycle Timer
Figure 5-18. Cycle Timer Removal
To access the cycle timer, remove the control panel and
inner access panel.
Before removing the harvest cycle timer and switch,
disconnect the power to the unit. Then, unplug the
electrical leads from the switch. Extract the timer
mounting screws and pull the timer forward.
Disconnect the timer electrical lead from the terminal
board. Extract the control box face plate mounting
screw, pull the face plate forward and disconnect the
timer electrical lead from the cube size control. (See
Figure 5-18)
Terminal
Board
Terminal Board Removal
Figure 5-19. Terminal Board Removal
The terminal board is attached inside the control box
with screws.
To access the terminal board, remove the control panel,
inner access panel and lower face plate.
Before removing the terminal board, disconnect power
to the unit. Then, extract the board mounting screws,
disconnect all electrical leads from the terminal board
and pull the board forward. (See Figure 5-19)
5-9
#3757320 - Revision B - August, 2005
Component Access/Removal
Model 315I (UC Ice Maker)
Hot Gas Solenoid Coil Removal
Clip
The hot gas solenoid coil is attached to the top of the
hot gas valve body with a clip. The electrical leads of
the coil pass through a grommet in the side of the control box and plug into the terminal board.
To access the hot gas solenoid coil, remove the control
panel and inner access panel.
Before removing the hot gas solenoid coil, disconnect
the power to the unit. Then, unplug the coil electrical
leads from the terminal board. With a small flat blade
screwdriver, pull the clip off of the top of the hot gas
valve body, lift the coil off of the valve body and pull the
electrical leads from the control box. (See Figure 5-20)
Solenoid Coil
Hot Gas Valve Body
Drain Pump Pressure Switch Removal (315IP Only)
Figure 5-20. Hot Gas Solenoid Coil Removal
The drain pump pressure switch is attached to the
pump bracket with screws. Electrical leads are connected to both sides of the switch, and a pressure
sensing hose leading from the drain pump inlet hose is
fit over the pressure sensing port of the switch.
To access the drain pump pressure switch, remove the
control panel, inner access panel and lower face plate.
Before removing the drain pump pressure switch, disconnect the power to the unit and scoop all the ice
cubes out of the storage bin. Then, unplug the electrical leads from both sides of the switch. Pull the hose
from the pressure sensing port. Extract the switch
mounting screws and pull the switch forward. (See
Figure 5-21)
Drain Pump
Inlet Hose
Pressure
Hose
Pressure
Switch
Figure 5-21. Drain Pump Pressure Switch Removal
Circulating/Spray Pump Removal
A rubber gasket/bushing assembly is positioned at the
base of the circulating/spray pump motor. The circulating/spray pump is inserted down through a hole in the
back of the bin assembly. Two screws are inserted
down through the flanges at the base of the pump
motor, then into screw anchors. The anchors are
inserted into mounting holes on either side of the pump.
As the screws are tightened down into the anchors, the
anchors expand at the bottom to hold the pump in position. The circulating/spray hoses are attached to the
pump inside the bin.
To access the circulating/spray pump, remove the rear
panel.
Before removing the circulating/spray pump, disconnect
the power to the unit. Then, disconnect all hoses from
the pump inside the ice storage bin. Disconnect the
electrical leads from the pump motor. Remove the
pump mounting screws and lift the pump and the gasket/bushing assembly up out of the hole in the back of
the storage bin. (See Figure 5-22)
#3757320 - Revision B - August, 2005
Electrical
Leads
Screw
Pump
Figure 5-22. Circulating/Spray Pump Removal
5-10
Component Access/Removal
Model 315I (UC Ice Maker)
Bin Level Control (Thermostat) Removal
Control Box Face Plate
The bin level control is mounted to the right side of the
control box face plate with screws. Two wires are connected to the back of the control. The control capillary
tube is inserted into a plastic sleeve and routed out the
back of the control box, up through a grommet in the
base assembly, up the back of the bin assembly and
into the back of the cylindrical bin thermostat bracket.
Bin Level Control
To access the bin level control, remove the control
panel, inner access panel and back panel.
Before removing the bin level control, disconnect the
power to the unit. Then, extract the control box face
plate mounting screw and pull the face plate forward.
Extract the control mounting screws. Disconnect the
electrical leads from the control. At the back of the unit,
pull the control capillary tube from the thermostat bracket, then pull the capillary tube with the sleave from the
grommet in the base assembly. At the front of the unit,
pull the control body, capillary tube and sleeve forward,
out of the control box. (See Figure 5-23)
Control Capillary Tube
Figure 5-23. Bin Level Control Removal
Cube Size Control (Evap. Thermostat) Removal
Tape
The cube size control is mounted to the left side of the
control box face plate with screws. Three wires are
connected to the back of the control. The control capillary tube is routed out the back of the control box, up
through a grommet in the base assembly, up the back
of the bin assembly, then inserted into a tube attached
to the evaporator.
Retaining Clip
ion
lat
u
Ins
Tape
Cover
To access the cube size control, remove the control
panel, inner access panel, upper and lower face plates,
back panel, unit shell, insulation bag, tube retaining clip
and evaporator/platen cover.
Capillary
Tube
ell
Sh
Before removing the cube size control, disconnect the
power to the unit. Then, extract the control box face
plate mounting screw and pull the face plate forward.
Extract the control mounting screws. Disconnect the
electrical leads from the control. At the back of the unit,
pull the control capillary tube from the tube on the evaporator, then pull the capillary tube from the grommet in
the base assembly. At the front of the unit, pull the control body and capillary tube forward, out of the control
box. (See Figure 5-24)
Figure 5-24. Cube Size Control Removal
5-11
#3757320 - Revision B - August, 2005
Component Access/Removal
Model 315I (UC Ice Maker)
Reservoir Fill Tube Assembly Removal
Water Valve
Outlet
Tape
The reservoir fill tube assembly is attached to the water
valve outlet port. The tube is routed to the rear of the
base assembly, up through a grommet in the base
assembly, up the back of the bin assembly, then
hooked over the back edge of the evaporator.
ion
lat
u
Ins
Tape
To access the reservoir fill tube assembly, remove the
control panel, inner access panel, upper and lower face
plates, back panel, unit shell, insulation bag, tube
retaining clip and evaporator/platen cover.
Cover
Begin removing the reservoir fill tube assembly by disconnecting it from the water valve outlet. Then, pull the
tube from the grommet in the base assembly and
unhook it from the back edge of the evaporator. (See
Figure 5-25)
ell
Sh
Drain Pump Assembly Removal (315IP Only)
Unhook tube assy from
evaporator
The drain pump assembly on the model 315IP sits on
the pump bracket. The pump is held in place with a
cable tie that loops through two holes in the bracket
and around the body of the pump. The bracket is held
to the base assembly with screws. The pump inlet
hose fits over the front port of the pump. The outlet
hose is attached to the top port of the pump.
Figure 5-25. Reservoir Fill Tube Removal
Outlet
Hose
To access the drain pump assembly, remove the control
panel, inner access panel, upper and lower face plates,
back panel and unit shell.
Drain
Pump
Before removing the drain pump assembly, disconnect
the power to the unit and scoop all the ice cubes out of
the storage bin. Then, disconnect the inlet and outlet
hoses from the pump, cut the cable tie holding the
pump to the pump bracket and pull the pump off of the
bracket. (See Figure 5-26)
#3757320 - Revision B - August, 2005
Inlet Hose
Cable Tie
Pump
Bracket
Figure 5-26. Drain Pump Removal
5-12
Model 315I (UC Ice Maker)
Component Access/Removal
Condenser Fan Assembly Removal
The condenser fan motor is attached to the fan bracket
with screws that pass up through the bracket into the
motor body. The fan bracket is attached to the base
assembly with screws that pass up through the base
into the fan bracket. The condenser fan blade fits over
the shaft of the motor. A flat nut screws onto the motor
shaft to hold the blade in place. The fan motor electrical leads pass through a grommet in the side of the
control box and plug into the terminal board.
Fan Blade
Fan Motor
To access the condenser fan assembly, remove the
control panel, inner access panel, upper and lower face
plates, back panel and unit shell.
Before removing the condenser fan assembly, disconnect the power to the unit. Then, disconnect the fan
motor electrical leads from the terminal board. Extract
the fan bracket mounting screws from the bottom of the
base assembly and lift the fan assembly off of the base
plate. The fan motor can then be removed from the
bracket by extracting the motor mounting screws, and
the fan blade can be removed from the motor shaft by
first removing the flat nut. (See Figure 5-27)
Fan Bracket
Figure 5-27. Condenser Fan Removal
High-Side Filter-Drier Removal
The high-side filter-drier is attached between the condenser outlet and the capillary tube and is located at
the rear of the base assembly.
To access the high-side filter-drier, remove the back
panel.
Before removing the high-side filter-drier, capture the
refrigerant from the sealed system. Then, use a file to
score a line around the capillary tube approximately
one inch from the filter-drier. Fatigue the capillary tube
at this point until it separates. Now, use a tube cutter to
cut the drier inlet tube approximately one inch from the
drier. (See Figure 5-28)
High-Side
Filter-Drier
Figure 5-28. High-Side Filter-Drier Removal
5-13
#3757320 - Revision B - August, 2005
Component Access/Removal
Model 315I (UC Ice Maker)
Evaporator Assembly Removal
Tape
The evaporator assembly consists of the evaporator,
heat exchanger assembly and hot gas line from the gas
valve. The evaporator/cube mold sits inside the top of
the reservoir insert. The evaporator/platen cover is
placed over the evaporator and a piece of tape is
placed over the cover to keep it in place.
Tape
ion
lat
u
Ins
Cover
Evap. Assy
To access the evaporator assembly, remove the control
panel, inner access panel, upper and lower face plates,
back panel, unit shell, insulation bag, tube retaining clip
and evaporator/platen cover.
ell
Sh
Before removing the evaporator assembly, capture the
refrigerant from the sealed system. Then, use a file to
score and separate the capillary tube approximately
one inch from the filter-drier. Use a tube cutter to cut
the suction line approximately one inch from the compressor. Cut the hot gas line approximately one inch
from the hot gas valve and lift the assembly out of the
reservoir insert and off of the back of the bin assembly.
(See Figure 5-29)
Figure 5-29. Evaporator Assembly Removal
Hot Gas Valve Removal
Clip
The inlet of the hot gas valve is attached to a “T” connection off of the compressor discharge line. The outlet
of the valve is attached to the hot gas line that runs up
to the evaporator. The hot gas solenoid coil is attached
to the top of the hot gas valve body with a clip.
To access the hot gas valve, remove the control panel,
inner access panel, upper and lower face plates, back
panel and unit shell.
NOTE:: Separating the top of the base assembly from
the bottom by extracting the screws from the base
assembly legs will allow easier access to the hot gas
valve.
Cut inlet and outlet tubes
approximately 1” from
hot gas valve body.
Before removing the hot gas valve, capture the refrigerant from the sealed system. Then, disconnect the solenoid coil from the valve body. With a a tube cutter, cut
the valve inlet and outlet tubing approximately one inch
from the valve body and lift the valve off of the base
assembly. (See Figure 5-30)
#3757320 - Revision B - August, 2005
Solenoid Coil
Figure 5-30. Hot Gas Valve Removal
5-14
Model 315I (UC Ice Maker)
Component Access/Removal
Compressor Removal
The compressor sits on the bottom plate of the base
assembly. Two “U” shaped compressor brackets are
passed up through the base plate, compressor grommets and washers. Cotter-pin clips are attached to the
compressor brackets over the washers and grommets
to hold the compressor in place.
Compressor
Washer
ell
Sh
Clip
To access the compressor, remove the control panel,
inner access panel, upper and lower face plates, back
panel and unit shell.
NOTE:: Separating the top of the base assembly from
the bottom by extracting the screws from the base
assembly legs will allow easier access to the compressor.
Before removing the compressor, capture the refrigerant from the sealed system. Then, disconnect the electrical leads from the compressor. With a a tube cutter,
cut the suction and discharge lines approximately one
inch from compressor ports, remove the clips and lift
the compressor off of the base assembly. (See Figure
5-31)
Grommet
Compressor Bracket
Figure 5-31. Compressor Removal
Condenser Removal
The condenser is attached to the base assembly with
screws that pass up through the base into the the bottom side flanges on the condenser. The control box is
attached to the top of the condenser with screws that
pass through the top side flanges of the condenser into
the sides of the control box. The condenser fan shroud
is attached to the back of the condenser with screws
passing through the shroud into the rear side flanges of
the condenser. A styrofoam gasket is sandwiched
between the fan shroud and the condenser to prevent
air leaks around the shroud. The inlet port of the condenser is attached to the compressor discharge line.
The condenser outlet leads to the high-side filter-drier.
Fan Shroud
Switch Box
Gasket
To access the condenser, remove the control panel,
inner access panel, upper and lower face plates, back
panel and unit shell.
Condenser
NOTE: Separating the top of the base assembly from
the bottom by extracting the screws from the base
assembly legs will allow easier access to the condenser.
Figure 5-32. Condenser Removal
Before removing the condenser, capture the refrigerant
from the sealed system. Then, cut the compressor discharge line and drier inlet line approximately one inch
from the condenser inlet and outlet ports. Disconnect
the control box from the top of the condenser.
Disconnect the fan shroud from the back of the condenser and lift the condenser off of the base assembly.
(See Figure 5-32)
5-15
#3757320 - Revision B - August, 2005
Component Access/Removal
#3757320 - Revision B - August, 2005
Model 315I (UC Ice Maker)
5-16
Parts Lists
Model 315I (UC Ice Maker)
SECTION 6
PARTS LISTS &
EXPLODED VIEWS
6-1
#3757320 - Revision B - August, 2005
Parts Lists
Model 315I (UC Ice Maker)
CABINET
1
29
2
3
28
4
5
30
6
7
8
27
26
9
10 11
22
12
13
14
12
12
31
32
15
24
16
36
33
17
25
23
12
21
22
34
19
20 (Includes 21)
35
Item #
13
Item #
1
2
3
4
5
6
7
8
9
10
11
12
Part #
A28861023
02386701
03381401
13082801
13093501
A37814001
03381301
02385701
13093601
A37886021
02386601
03381801
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Description
Cabinet/Shell
Support, Hinge Mount
Screw, #8-32X3/8 Fill Hd (8)
Gasket, Decor Trim
Seal, Bin (EPS Sheet)
Face Plate, Upper Cabinet
Screw, #10-24X5/8 Hd (4)
Trim Ring, Bin
Gasket, Door
Door
Hinge, Top RH / Bottom LH
Screw, #10-24X1/2 (10)
#3757320 - Revision B - August, 2005
29
30
31
32
33
34
35
36
6-2
Part #
02385901
02385902
A37854001
03163803
A37822001
02386602
A37855001
02385801
A37819021
03381701
03141807
A37815001
03381601
02224302
03140407
A37858001
03141908
02270101
03140408
A29102001
03143100
03160801
12163807
A26787001
08066401
02398801
18
12
Description
Cover, Upper Hinge/Door, RH
Cover, Upper Hinge/Door, LH
Bracket, Panel Mount Top
Screw, #8-32X3/8 (2)
Bracket, Panel Mount
Hinge, Top LH / Bottom RH
Bracket, Panel Mount Bottom
Knob, Bin Thermostat
Control Panel Assy
Dual Lock Fastener (2)
Screw, #10-24X1/2 Flat Hd(4)
Face Plate, Lower Cabinet
Screw, #8X1/2 Black (2)
Kickplate
Screw, #6 (3)
Panel, Inner Control Access
Screw, A B Flat Hd (2)
Spacer (1)
Screw, Thread Forming (9)
Rear Panel
Screw, #10 (6)
Leveler Leg (4)
Power Cord
Insulation (in bag)
Scoop
Filler, Kickplate
Parts Lists
Model 315I (UC Ice Maker)
12
1
MAJOR ASSEMBLIES
15
13
7
4
11
10
5
8
14
16
9
22
17 (includes 3 & 6)
38 Not shown:
Pump Wire
Harness
3
23
18 24
28
19
34
33
32
21
20
29,
30,
31
37
35
6
26, 27
2
17a,17b,
17c
25
32
36
Item #
1
2
3
4
Part #
02227401
13067401
A34816001
02348920
5
6
7
8
9
10
11
12
13
14
15
16
17
17a
17b
17c
18
19
20
21
A36699020
13089901
13067416
13067415
13067415
02177502
02053401
02171900
A30625001
13068700
03140414
03142204
A36930020
02332301
13061713
03139405
12256903
12256902
12256901
02349001
36
Description
Platen Cover
Tube (Requires 37")
Bin Thermostat Bracket
Evaporator (Does NOT
include accumulator & tubing)
Evaporator Assy, Complete
Reservoir Drain hose
Tube, 5/8" (Requires 4-1/4”)
Tube, 1/2" ( Requires 3-1/2")
Tube 1/2" ( Requires 3-5/8")
Clamp (2)
Clamp (4)
Fan Blade
Spray Pump
Gasket
Screw (2)
Speed Nut (2)
Bin Assembly
Drain fitting (foamed in bin)
O-Ring
Pal nut
Clip, Hot Gas Valve
Coil, Hot Gas Valve
Hot Gas Valve Body
Drier
Item #
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
6-3
Part #
A27028001
A27027001
02172701
A36892020
Description
Tube Holder
Copper Inlet
Clamp
Drain Pump Kit, Complete
(To convert gravity drain
model to drain pump model.)
12250321
Drain Pump Only
Drain Pump Kit Service Parts
02353201
Impeller & housing kit
02336901
Inlet hose
02352201
Elbow
02337401
Check Valve
13061708
O-Ring
11050401
Pressure Switch
05059101
Hose, Pressure Sense
02340601
Barb Connector
02281411
Clamp, Plastic Hose
A36746001
Bracket, Pump
A37334001
Discharge hose
12258001
Wire Harness, Pump
#3757320 - Revision B - August, 2005
Parts Lists
Model 315I (UC Ice Maker)
CONDENSING UNIT
14
18
5
1
6
15
1
4
2
11
16
12
9
7
3
13
19
17
8
17
10
Item #
1
2
3
4
5
6
7
8
9
10
Part #
03140408
18371001
A28798001
12239601
02287101
18372901
18470028
03160801
02249701
A29015001
Description
Item #
11
12
13
14
15
16
17
18
19
Screw (4)
Fan Blade
Fan Motor Bracket
Fan Motor
Fan Shroud
Condenser
Grommet
Leg Leveler
Clip
Bracket
#3757320 - Revision B - August, 2005
6-4
Part #
18875210
18875211
18875212
12121310
13060900
18877621
03153101
A37732001
A28921001
Description
Spacer
Nut
Screw
Bushing
Gasket ( Req. 14-1/2")
Compressor, Complete
Screw (4)
Top Base Plate
Bottom Base Plate
Parts Lists
Model 315I (UC Ice Maker)
RESERVOIR
1
2
13
4
12
5
6
3
10
11
7
8
9
Item #
1
2
3
4
5
6
7
Part #
02247921
A24155001
03140416
02184100
A09543000
02184000
A22518000
Description
Item #
Curtain
Curtain Stiffener
Screw
Nozzle
Spinner
Jet Base
Cube Chute
8
9
10
11
12
13
6-5
Part #
13061708
02270401
05059301
13061701
02192301
A22532000
Description
O-Ring
Spray Bar Assy
SS Nipple
O-Ring
Bin Insert
Bin Insert Assy
#3757320 - Revision B - August, 2005
Parts Lists
Model 315I (UC Ice Maker)
CONTROL BOX
5
11
4
11
12
6
8
3
7
9
13
1
10
2
Item #
1
2
3
4
5
6
Part #
A25981001
03140307
12198021
11050321
11040721
12290721
12241031
Description
Item #
Terminal board
Screw
Timer and Switch
Cube Size Control
Bin Level Control
Water Valve (includes fittings)
Coil only for above valve
#3757320 - Revision B - August, 2005
7
8
9
10
11
12
13
6-6
Part #
12121312
03140317
02224206
02224205
03140317
12121304
03163802
Description
Bushing
Screw
Spacer
Spacer
Screw
Bushing
Screw
Parts Lists
Model 315I (UC Ice Maker)
COMPRESSOR
1
2
8
4
7
3
5
6
Item #
1
2
3
4
5
6
7
8
Part #
18877621
18877651
18877652
18877654
02349001
18470028
03140708
03160000
Description
Compressor, Complete (Includes all parts listed below)
Relay
Overload
Cover
High-Side Filter-Drier
Grommet
Washer, 3/8”
Clip
6-7
#3757320 - Revision B - August, 2005
Parts Lists
#3757320 - Revision B - August, 2005
Model 315I (UC Ice Maker)
6-8
Troubleshooting Guide
Model 315I (UC Ice Maker)
SECTION 7
TROUBLESHOOTING
GUIDE
7-1
#3757320 - Revision B - August, 2005
Troubleshooting Guide
Model 315I (UC Ice Maker)
TROUBLESHOOTING GUIDE
This section of the manual contains the Troubleshooting Guide which will help the Service Technician troubleshoot a
model 315I.
How to Use the Troubleshooting Guide
The list below indicates how the Troubleshooting Guide is arranged. Identify the description of the problem that the
unit is experiencing from the list and go to the page indicated. To the left of the problem description is a letter.
Locate that letter in the left column of the Troubleshooting Guide. The center column will identify the possible causes for the problem. And, the information in the right column will explain what tests to perform in order to determine if
what you are checking is the cause and/or what action to take to correct the problem.
3
Troubleshooting Guide Layout
Page #
A.
B.
C.
D.
E.
F.
G.
Ice machine does not operate ...........................................................................................................................
Ice machine operates, but will not make ice .....................................................................................................
Ice machine operates, makes ice, but cubes do not release from mold ..........................................................
Ice machine operates, makes ice, but does not fill bin ...................................................................................
Cubes are too big .............................................................................................................................................
Cubes are too small .........................................................................................................................................
Cubes are partially formed - ragged edges ......................................................................................................
#3757320 - Revision B - August, 2005
7-2
7-3
7-3
7-4
7-5
7-5
7-5
7-5
Model 315I (UC Ice Maker)
PROBLEM
A. Ice machine does not
operate
B. Ice machine operates,
but will not make ice
POSSIBLE CAUSE
Troubleshooting Guide
TEST / ACTION
The ice machine control is turned to
the OFF position
Turn ice machine control to ON or
NORMAL position
Circuit breaker switch tripped off or
fuse is blown
Reset circuit breaker / replace fuse. If it
happens again, check for electrical short
in appliance.
Ice machine is unplugged
Check outlet. Plug unit in.
Loose or disconnected wiring of ice
machine
See Wiring Diagrams and Schematics
section of manual and check for voltage
at appropriate points. Repair wiring.
Bin thermostat open
a. Bin full, ice touching thermostat sensing tube - This is normal.
b. Room ambient temperature too low
(below 50°F/10°C). Advise customer.
c. Bin thermostat defective, stuck open.
Replace thermostat.
Cycle timer contacts open
Check/replace timer
No water in reservoir
a. House water supply turned off. Turn
water supply on.
b. Check water supply line for kinks or
restrictions.
c. If supply line has a filter, it may be
clogged and/or need changing.
d. Check screens in water valve for
clogs. - Clean screens or replace
valve.
e. Check for loose or disconnected wiring
to water valve. Repair bad wiring.
f. Check operation of water valve. If
defective, replace.
g. Check for leaks in reservoir. Repair
leak.
No water spray from spray jets
a. Check for clogged spray jets. See
Cleaning the Ice Making System
instructions in Maintenance, Cleaning
and Adjustment section of manual.
b. Check for leaks in reservoir. Repair
leak.
c. Check for loose or disconnected wiring
to spray pump. Repair bad wiring.
d. Check operation of spray pump.
Replace if defective.
(Continued on next page)
7-3
#3757320 - Revision B - August, 2005
Troubleshooting Guide
PROBLEM
B. Ice machine operates,
but will not make ice
(Continued)
C. Ice machine operates,
makes ice, but cubes do
not release from mold
Model 315I (UC Ice Maker)
POSSIBLE CAUSE
TEST / ACTION
No airflow through condenser
a. Check for obstructions in vents of kickplate. Move/clear obstruction.
b. Check for dirty condenser. Clean condenser.
c. Check for loose or broken condenser
fan blade. Repair or replace blade.
d. Check for loose or disconnected wiring
to condenser fan motor. Repair bad
wiring.
e. Check operation of condenser fan
motor. Replace if defective.
Hot gas valve stuck open
Check operation of hot gas valve.
Replace valve and drier if valve is defective.
Electrical problem at compressor
a. Check for loose or disconnected wiring
to compressor electricals. Repair bad
wiring.
b. Check operation of overload and relay.
If defective, replace.
Sealed system problem.
a. If power is at compressor and compressor electricals are good, but compressor will not run, replace compressor and drier.
b. Inspect sealed system for leaks,
restrictions or inefficient compressor
by observing frost patterns and feel
tubing for irregular temperatures.
Repair or replace components as
needed.
Mineral scale build up in ice making
system.
See Cleaning the Ice Making System
instructions in Maintenance, Cleaning and
Adjustment section of manual.
Harvest time too short (should be
approximately 3 - 3-1/2 minutes).
Lengthen harvest time setting at cycle
timer if too short.
Hot gas valve does not open during
harvest cycle
a. Check for loose or disconnected wiring
to hot gas valve. Repair bad wiring.
d. Check operation of hot gas valve, it
may be stuck closed. Replace valve
and drier if valve is defective.
Cube size control will not close
Check operation of cube size control.
Replace control if defective. NOTE:
Cube size control will not close if sealed
system is low on freon. Check sealed
system too.
#3757320 - Revision B - August, 2005
7-4
Model 315I (UC Ice Maker)
PROBLEM
D. Ice machine operates,
makes ice, but does not
fill bin
POSSIBLE CAUSE
Troubleshooting Guide
TEST / ACTION
Bin takes 24 - 36 hours for initial fill
This is normal. Heavy/frequent ice consumption by customer will slow the refill
process. Advise customer.
High room ambient temperature
Ambient temperatures should not exceed
100°F/38°C. Ice machine works best in
ambient between 60°F/16°C - 90°F/32°C.
Advise customer.
High water temperature
Water temperatures should not exceed
100°F/38°C. Ice machine works best with
50°F/10°C - 80°F/27°C water. Advise
customer.
Vents in kickplate obstructed
Move/clear obstruction.
Dirty condenser
Clean condenser.
Bin drain restricted causing rapid
melting in bin
Clean out bin drain and/or check installation for kinks in drain line.
E. Cubes are too big
Cube size control set too cold
See Cube Size Control Adjustment
instructions in Maintenance, Cleaning and
Adjustment section of manual.
F. Cubes are too small,
possibly white at bottom
Cube size control set too warm
See Cube Size Control Adjustment
instructions in Maintenance, Cleaning and
Adjustment section of manual.
Not enough water
a. Check water supply line for kinks or
restrictions.
b. If supply line has a filter, it may be
restricted and/or need changing.
c. Check screens in water valve for
restrictions. - Clean screens or
replace valve.
d. House supply water pressure too low.
Pressure must be 20 - 80 p.s.i.g., constant. Advise customer.
e. Check for water leak at reservoir.
Repair or replace parts.
f. Check for torn or mis-positioned curtain causing water leak into bin.
Reposition or replace curtain.
Cube size control stuck closed causing rapid ice making cycles
Check/replace control
Spray jets partially clogged with mineral scale
See Cleaning the Ice Making System
instructions in Maintenance, Cleaning and
Adjustment section of manual.
G. Cubes are partially
formed - ragged edges
7-5
#3757320 - Revision B - August, 2005
Troubleshooting Guide
#3757320 - Revision B - August, 2005
Model 315I (UC Ice Maker)
7-6
Technical Data
Model 315I (UC Ice Maker)
SECTION 8
TECHNICAL DATA
8-1
#3757320 - Revision B - August, 2005
Technical Data
Model 315I (UC Ice Maker)
BIN CAPACITY AND ICE PRODUCTION
Bin Storage Capacity
26 lbs
Ice Production (24 Hours)
18 - 30 lbs
WATER VALVE FLOW RATE
.2 gpm
SEALED SYSTEM INFORMATION
Refrigerant Charge (134a)
5 oz.
Approximate Low Side Pressure (at End of Freeze Cycle)
1 - 5 psi
Approximate High Side Pressure (at End of Freeze Cycle)
125 - 150 psi
ELECTRICAL INFORMATION
Unit Average Running Amperage
4 amps
Compressor Horse Power
1/8 hp
Compressor LRA (Locked Rotor Amps)
18.5 amps
Compressor Start Winding Resistance
11 - 13 ohms
Compressor Run Winding Resistance
2 - 4 ohms
Hot Gas Valve Coil Watts / Resistance
6.9 watts / 2069 ohms
Cycle Timer Motor Watts / Resistance
3 watts / 4800 ohms
Condenser Fan Motor Watts / Resistance
3 watts / 480 ohms
Water Valve Coil Watts / Resistance
15 watts / 960 ohms
Circulating Spray Pump Watts / Resistance
180 watts / 80 ohms
Drain Pump Watts / Resistance
150 watts / 96 ohms
Cube Size Control Cut-in / Cut-out Temps (“NORMAL” setting) 6°F(-14°C) / 12°F(-11°C)
#3757320 - Revision B - August, 2005
8-2
Model 315I (UC Ice Maker)
Wiring Diagrams/Schematics
SECTION 9
WIRING DIAGRAMS
AND SCHEMATICS
9-1
#3757320 - Revision B - August, 2005
#3757320 - Revision B - August, 2005
BK W
9-2
LINE
1
S
1
3
OVERLOAD
M
COMPRESSOR
RELAY - CURRENT
W
R
OFF
ON
S
S
1
BIN LEVEL
CONTROL
1
L05
3
R
M
C
BK
BK
COMPRESSOR
L02
RELAY CURRENT
FAN
MOTOR
SPRAY PUMP
MOTOR
BK
SOLENOID
BK
SOLENOID
HOT GAS
OVERLOAD
BK
BK
BU
L01
L02
3
1
R
L02
NC
COMM
NO
L04
BK
L04
L05
L04
SPRAY
PUMP
MOTOR
L03
BU
CUBE SIZE
CONTROL
2
TERMINAL
BOARD
BU
R
R
ON
TIMER
SWITCH
FAN
MOTOR
L02
BK
O
L03
L05
WATER
SOLENOID
L02
BU
MOTOR
TIMER
NO
NC
CAM
SWITCH
TIMER
COMM
BIN
LEVEL
CONTROL
OFF
CUBE SIZE
CONTROL
L03
HOT GAS
SOLENOID
L02
1
3
2
TIMER
MOTOR
Model 315I Wiring Diagram and Schematic
115 / 60 / 1
CIRCUIT
SCHEMATIC
NEUTRAL
LINE
115 / 60 / 1
NEUTRAL
GROUND
WATER
Wiring Diagrams/Schematics
Model 315I (UC Ice Maker)
BK W
9-3
LINE
L01 L01
COMM
NC
SAFETY
PRESSURE
SWITCH
R
DRAIN PUMP
MOTOR
COMPRESSOR
PRESSURE
SWITCH
NO PUMP
DRAIN PUMP
MOTOR
OVERLOAD
M
BK
R
RELAY - CURRENT
L02
3
COMM
1
S
1
W
NO
PUMP
PRESSURE
SWITCH
COMM
GN
W
OFF
ON
BIN LEVEL
CONTROL
BK
BK
S
S
1
1
R
L05
3
L02
M
C
RELAY CURRENT
BK
BK
L01
L02
3
1
R
L02
NC
COMM
NO
L04
BK
L04
L05
L04
SPRAY
PUMP
MOTOR
L03
BU
CUBE SIZE
CONTROL
2
TERMINAL
BOARD
BU
COMPRESSOR
FAN
MOTOR
SPRAY PUMP
MOTOR
BK
SOLENOID
BK
SOLENOID
HOT GAS
OVERLOAD
BU
WATER
ON
FAN
MOTOR
L02
BK
BK
O
L03
L02
BU
MOTOR
TIMER
NO
NC
CAM
SWITCH
TIMER
COMM
BIN
LEVEL
CONTROL
OFF
TIMER
SWITCH
R
R
L05
WATER
SOLENOID
HOT GAS
SOLENOID
CUBE SIZE
CONTROL
L03
L02
NO
NC
SAFETY
PRESSURE
SWITCH
COMM
1
R
3
2
TIMER
MOTOR
Model 315IP Wiring Diagram and Schematic
115 / 60 / 1
CIRCUIT
SCHEMATIC
NEUTRAL
LINE
115 / 60 / 1
NEUTRAL
GROUND
NC
Model 315I (UC Ice Maker)
Wiring Diagrams/Schematics
#3757320 - Revision B - August, 2005
Wiring Diagrams/Schematics
#3757320 - Revision B - August, 2005
Model 315I (UC Ice Maker)
9-4
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