USER GUIDE & SERVICE MANUAL
®
Model: VCWD630-SG51A
USER GUIDE & SERVICE MANUAL
Table of Contents
Click on any section below to jump directly there
Intro
Safety
Safety and Warning
Disposal And Recycling
Installation
Environmental Requirements
Electrical
Cutout & Product Dimensions
Anti-Tip Bracket
General Installation
Grille Installation
Door Swing
Interior Adjustments
Maintenance
Cleaning
Cleaning Condenser
Operating Instructions
First Use
Control Operation
Recommended Wine Storage
Service
Troubleshooting
Wire Diagram
Product Liability
Parts
R600a Specifications
System Diagnosis Guide
Compressor Specifications
Troubleshooting Extended
Control Operation - Service
Thermistor
Defrost
Warranty
USER GUIDE
Introduction
WELCOME TO VIKING COMMERCIAL
Congratulations on your purchase!
Viking is synonymous with decades of innovation and craftsmanship. Our industry-leading appliances set the standards.
Delivering professional performance and stunning design. Our products have become the standard for elite chefs around the
world.
PRODUCT INFORMATION
Looking for additional information on your product? User Guides, Spec Sheets, and Product Warranty information are available
online at vikingrange.com/commercial.
PROPERTY DAMAGE / INDUSTRY CONCERNS
In the unlikely event property damage or personal injury is suspected related to a Viking Commercial product, please take the
following steps:
1. Customer Care must be contacted at +1.616.754.5601
2. Service or repairs performed on the unit without prior written approval is not permitted. If the units have been
alteredorrepairedintheeldwithoutpriorwrittenapproval,claimswillnotbeeligible.
GENERAL INQUIRIES
1260 E. Van Deinse • Greenville, MI 48838 •
+1.616.754.5601
Website: vikingrange.com/commercial
commercial@vikingrange.com
CONNECT WITH US
SERVICE & PARTS ASSISTANCE
Monday – Friday 8:00 am to 4:30 pm CST
+1.616.754.5601
Service Email: commercialservice@vikingrange.com
3
USER GUIDE
Safety and Warning
Safety and Warning
NOTICE
Please read all instructions before installing,
operating, or servicing the appliance.
Use this appliance for its intended purpose only and follow
these general precautions with those listed throughout this
guide:
SAFETY ALERT DEFINITIONS
Throughout this guide are safety items labeled with a
Danger, Warning, or Caution based on the risk type:
Danger means that failure to follow this safety
statement will result in severe personal injury or
death.
Warning means that failure to follow this safety
statement could result in serious personal injury
or death.
Caution means that failure to follow this safety
statement may result in minor or moderate
personal injury, property, or equipment damage.
This unit contains R600a (Isobutane) which is a
ammable hydrocarbon. It is safe for regular
use. Do not use sharp objects to expedite
defrosting. Do not service without consulting the
“R600a specications” section included in the
User Guide. Do not damage the refrigerant
circuit.
Service must be done by factory authorized
service personnel. Any parts shall be replaced
with like components. Failure to comply could
increase the risk of possible ignition due to
incorrect parts or improper service.
CALIFORNIA PROPOSITION 65
This product contains chemicals known to the
state of California to cause cancer and birth
defects or other reproductive harm.
www.P65warnings.CA.gov
This equipment is to be installed with adequate
backow protection to comply with applicable
federal, state and local codes.
This equipment is intended for the storage and
display of packaged products only.
If this refrigerator has a glass door, it is a display
refrigerator. Please see caution statement below:
This display refrigerator is not for the display of
potentially hazardous foods.
DANGER
!
DANGER
!
WARNING
!
CAUTION
!
DANGER
!
CAUTION
!
CAUTION
!
CAUTION
!
WARNING
!
4
USER GUIDE
Disposal and Recycling
Disposal and Recycling
RISK OF CHILD ENTRAPMENT. Before you throw
away your old refrigerator or freezer, take o
the doors and leave shelves in place so children
may not easily climb inside.
If the unit is being removed from service for disposal,
check and obey all federal, state, and local regulations
regarding the disposal and recycling of refrigeration
appliances, and follow these steps completely:
1. Remove all consumable contents from the unit.
2. Unplug the electrical cord from its socket.
3. Remove the door(s)/drawer(s).
DANGER
!
5
USER GUIDE
Environmental Requirements
Environmental Requirements
This model is intended for indoor/interior applications only
and is not to be used in installations that are open/
exposed to natural elements.
This unit is designed to operate between 50°F (10°C) and
100°F (38°C). Higher ambient temperatures may reduce
the unit’s ability to reach low temperatures and/or reduce
ice production on applicable models.
For best performance, keep the unit out of direct sunlight
and away from heat generating equipment.
In climates where high humidity and dew points are
present, condensation may appear on outside surfaces.
This is considered normal. The condensation will
evaporate when the humidity drops.
CAUTION
!
Damages caused by ambient temperatures of
40°F (4°C) or below are not covered by the
warranty.
6
USER GUIDE
Electrical
Electrical
WARNING
!
SHOCK HAZARD — Electrical Grounding
Required. Never attempt to repair or perform
maintenance on the unit until the electricity has
been disconnected.
Never remove the round grounding prong from
the plug and never use a two-prong grounding
adapter.
Altering, cutting or removing power cord,
removing power plug, or direct wiring can cause
serious injury, fire, loss of property and/or life,
and will void the warranty.
Never use an extension cord to connect power to
the unit.
Always keep your working area dry.
NOTICE
Electrical installation must observe all state and
local codes. This unit requires connection to a
grounded (three-prong), polarized receptacle
that has been placed by a qualified electrician.
The unit requires a grounded and polarized 115 VAC,
60 Hz, 15A power supply (normal household current). An
individual, properly grounded branch circuit or circuit
breaker is recommended. A GFCI (ground fault circuit
interrupter) is usually not required for fixed location
appliances and is not recommended for your unit because
it could be prone to nuisance tripping. However, be sure
to consult your local codes.
See CUTOUT & PRODUCT DIMENSIONS for recommended
receptacle location.
7
USER GUIDE
Cutout & Product Dimensions
Cutout & Product Dimensions
PREPARE SITE
This product has been designed for built-in installation only
and does not require additional air space for top, sides, or
rear. However, the front grille must NOT be obstructed,
and clearance is required for an electrical connection in the
rear.
Unit can NOT be installed behind a closed cabinet
door.
If you would like to align the face of the unit with
other adjacent cabinet doors, you may need to
alter the wall behind the wine column.
CUTOUT DIMENSIONS
CAUTION
!
2” x 4” Mounting Board (11⁄2” x 3 1⁄2”) attached to
anti-tip mounting bracket
Note: If unit is installed deeper than 24” (610 mm), then
shim behind anti-tip bracket as needed
Electrical
Outlet
Location
Anti-tip mounting
brackets attached
to wall studs
24”
(610 mm)
4”
(102 mm)
82 7⁄8”
(2105 mm)
to
84 1⁄16”
( 2135 mm)
73 3⁄4”
(1873 mm)
29
5⁄8”
(752 mm)
8
USER GUIDE
Cutout & Product Dimensions
PRODUCT DIMENSIONS
FRONT
TOP
SIDE
82 7⁄8”
(2105 mm)
to
84 1⁄16”
( 2135 mm)
30 ”
(762 mm)
70”
(1775 mm)
22 3⁄16”
(564 mm)
24 1⁄32”
(610 mm)
27 1⁄2”
(699 mm)
9 5⁄16
”
(236 mm)
1 11⁄16”
(43 mm)
2 5⁄8”
(67 mm)
Top
Grille
51 7⁄8”
(1318 mm)
29”
(737 mm)
24 1⁄2”
(622 mm)
3”
(76 mm)
9
USER GUIDE
Anti-Tip Bracket
Anti-Tip Bracket
Unit is top heavy and tips easily when not
completely installed. Keep doors closed until
appliance is completely installed and secured per
installation instructions.
Use two or more people to move and install
appliance. Failure to do so can result in death or
serious injury.
OPTION 1
If a solid sot is 1” (2.5cm) or less above the unit, anti-tip
boards are not required. To secure the unit raise it until it
is rmly seated under the sot.
OPTION 2
If a solid sot is not available or sot is more than 1” (2.5
cm) above the unit, center wood boards on rear wall 1/4”
(0.6 cm) maximum above the unit. Attach wood boards to
wall studs with six of the provided wood screws, making
sure that screws are engaged in wall studs 1-1/2” (3.8 cm)
minimum and that boards extend 2” (5.0 cm) minimum
over the top rear of the unit’s compressor cover. To secure
the unit, raise it until compartment is rmly seated under
the anti-tip board.
OPTION 3
Position the wood block over the unit and secure it to wall
studs using eight of the provided wood screws and “L”
brackets. Make sure screws extend a minimum of 1” (2.5
cm) into each of the two wall studs. The wood block must
extend a minimum of 3” (7.6 cm) over the unit. To secure
the unit, raise it until rmly seated under the anti-tip
boards.
SOLID SOFFIT
OPTION 1 OPTION 2 OPTION 3
Rear Wall
Two 2 x 4
boards
attached to
wall with six
wood screws
(minimum)
“L” bracket
with (4) screws
on each end.
(1) 2 x 4
attached to
both “L”
brackets -
minimum of
1” (2.5 cm) screws.
Screws extend
minimum of
1” (2.5 cm) into
each wall stud.
1” (2.5 cm)
or less
2” (5 cm)
minimum
3”
(7.6 cm)
minimum
1⁄4” (0.6 cm)
maximum
1⁄4” (0.6 cm)
maximum
WARNING
!
10
USER GUIDE
General Installation
General Installation
INSTALLATION
1. Position unit in front of cutout and remove upper grille.
2. Verify operation by plugging power cord in receptacle.
3. Open door. Control panel should be lit. Verify the
position of the power on/o and showroom switch if
there is no power to the unit.
4. Replace upper grille.
Power switch will be shipped in the “ON”
position.
5. Roll unit into the cutout to within 3” (7.6 cm) of being
ush with cabinets. To avoid kitchen cabinet damage,
place cardboard between cabinets and unit. Push
cardboard back with unit and remove cardboard when
unit is in place.
LEVELING
1. Remove lower grille (See GRILLE INSTALLATION).
2. Lift the unit o its rollers, adjust to desired height and
level unit by using a 5/16” hex head wrench.
a) To raise/lower right side rear, rotate the right side
rear hex rod.
b) To raise/lower left side rear, rotate the left side
rear hex rod.
c) To raise/lower right side front, rotate the right side
front hex rod.
d) To raise/lower left side front, rotate the left side
front hex rod.
3. Align unit with sides of cabinets by adjusting leveling
legs. Rotate leveling legs until rmly in place against
oor.
4. To secure unit, raise unit until compartment cover is
rmly seated under the sot or anti-tip boards.
5. Replace lower grille.
NOTICE
Leveling
Legs Adjusters
Leveling
Legs Adjusters
DETAIL “A”
LEFT SIDE
DETAIL “B”
RIGHT SIDE
FRONT REAR
FRONT REAR
A
B
Front view with
grille removed.
Power
Switch
Shown with Louvered
Grille Removed
11
USER GUIDE
Grille Installation
Grille Installation
REMOVING AND INSTALLING GRILLE
Removing grille
1. Loosen the two outside screws (1) enough to allow the
lower grille panel (solid) to slide into the upper grille
panel (louvered).
2. Slide the lower grille panel upward and tighten the two
screws just enough to hold it in place.
3. Remove the two inside screws (2).
4. Remove grille assembly.
Installing the grille
1. Position the grille assembly along the front edge of the
unit.
2. Align the holes on both ends of the top panel with the
holes in the base of the unit.
3. Attach the grille to the unit on each side with the two
philips-head screws.
4. Adjust the bottom panel to the desired height and
fasten in place by tightening the screws in the
slots. There is approximately 1” (2.5 cm) of vertical
adjustment on the grille.
Screws and slots
for adjustments
2
1
Upper Panel
Lower Panel
12
USER GUIDE
Door Swing
Door Swing
Stainless steel models require 3 1⁄8” (79 mm) door
clearance to accommodate the handle if installed next to a
wall.
3 1⁄8” (79 mm) Minimum
Clearance Needed
900 Door Swing
13
USER GUIDE
First Use
First Use
INITIAL STARTUP
Initial startup requires no adjustments. When plugged
in, the unit will begin operating under the factory default
settings. If the unit was turned o during installation,
simply press and the unit will immediately switch on. To
turn the unit o, press .
Note: Temperature displayed reects actual temperature
inside the unit. If the temperature displayed is dierent
than selected, the unit is progressing towards the selected
temperature. Time to reach set point varies based
upon ambient temperature of the product loaded, door
openings, etc. It is recommended that the unit is allowed
to reach its set points before loading product.
14
USER GUIDE
Control Operation
Control Operation
CONTROL FUNCTION GUIDE
Hidden
Button
FUNCTION COMMAND NOTES
Power on/o Press to turn unit on or o Unit will immediately turn ON or OFF.
Adjust Temperature
Press or and release to adjust
upper zone.
Press to change to lower zone.
Press or and release to adjust.
Interior lights indicates zone temperature being set:
Blue = Upper 380 - 650 F (3.30 - 18.30 C)
White = Lower 380 - 650 F (3.30 - 18.30 C)
Note: the set temperature of the lower zone cannot be colder
than the set temperature of the upper zone.
Adjusting the set temperature of the upper zone may cause
the lower zone to automatically adjust. The lower zone
cannot be more than 200 above the set temperature of the
upper zone.
Toggle between 0F/0C Hold and for 5 seconds. The display will change units.
Leave interior light on
Press and release to leave interior
light on for 12 hours; press again to
deactivate.
After 12 hours, factory default is restored; light will turn on
when door is open.
Hide display Hold hidden button and press .
Display will turn o when door is closed. Unit will continue to
operate. Repeat command to turn on.
Adjust light color
While holding , press and release
to scroll through options.
Option Open Door Closed Door
00 White White
01 Blue Blue
02 White Blue
Light will be set at full intensity when door is open, and 50%
intensity when door is closed.
Enable Sabbath mode
Press and hold for 5 seconds and
release.
Interior light and display will go dark and remain so until
user resets mode - unit continues to operate.
Disable Sabbath mode
Press and hold for 5 seconds and
release.
Display and interior light return to normal operation.
Showroom mode Hold and for 5 seconds.
The 0F/0C symbol will ash. Display will be lit and interior
light will function. UNIT WILL NOT COOL. Repeat command
to return to normal operation.
Door Alert Notication
When door is left open for more than 30 minutes:
• A tone will sound for several seconds every minute
• will appear in display
• Close door to silence alert and reset
High/Low Temp Notications
When the compartment temperature exceeds the control
setting for an extended period of time:
• “HH” will appear in display (High Temp)
• “LL” will appear in display (Low Temp) Contact service
department for further instructions.
First Use
INITIAL STARTUP
Initial startup requires no adjustments. When plugged in, the unit
will begin operating under the factory default settings. If the unit
was turned o during installation, simply press and the unit will
immediately switch on. To turn the unit o, press .
Note: Temperature displayed reects actual temperature inside the
unit. If the temperature displayed is dierent than selected, the unit
is progressing towards the selected temperature. Time to reach set
point varies based upon ambient temperature of the product loaded,
door openings, etc. It is recommended that the unit is allowed to
reach its set points before loading product.
15
USER GUIDE
Interior Adjustments
Interior Adjustments
SHELF REMOVAL
Remove wine before removing shelves. Failure to
do so could result in bottle breakage.
1. Pull the shelf forward until it is fully extended.
2. Lift up the front of the shelf.
3. Remove from the glide.
Convertible Display Shelves
This unit comes equipped with two convertible display
shelves - one in each zone. To use the display shelf, rst
remove any wine bottles stored on the shelf. Next, remove
the wine shelf directly above (see Shelf Removal section.)
Lift the shelf up, rotate the shelf support up and lock shelf
into place with legs.
CAUTION
!
Wood
Front
Shelf
Support
16
USER GUIDE
Recommended Wine Storage
Recommended Wine Storage
To store magnum or oversized bottles, the shelf
directly above must be removed. Failure to do
so could result in bottle breakage (see Shelf
Removal section for proper shelf removal.
Versatile Shelving System
The unit’s shelving system makes it easy to store
standard, magnum and half-sized bottles. There are a
total of fteen wine shelves which will each accommodate
10 standard bottles of wine, alternately displayed. Two
convertible wine shelves adjust to allow bottles to be
displayed.
Loading the Shelves
To load a shelf, pull the shelf forward and place the bottles
on the shelf with the neck in the center of the shelf.
Alternate the direction of the next bottle. Shelves may
need to be removed to store some bottles.
Wine Storage Guidelines
Wines that are stored for a long period of time should be
stored at a stable temperature in a dark, vibration-free
environment. Wines stored for a short term (six months)
can be stored at 550F (130C) and above.
The ambient temperature of the room you locate your unit
in could aect the temperature in your unit if the room
temperature is lower than the unit’s set temperature.
The unit is designed cool, not heat the stored wines.
Temperatures inside the unit cannot be higher than room
temperatures outside of the unit. The unit is designed to
perform at room temperatures of 700F (210C) and above.
CAUTION
!
17
USER GUIDE
Cleaning
Cleaning
CLEANING VS. SANITIZING
This guide will address both the cleaning and the sanitizing
of the unit.
Clean the unit to remove dried food and spills, to prevent
build-up of grime, and to maintain the natural luster
stainless steel surfaces.
Sanitize the unit when exposed to raw meat juice or
human germs such as from a sneeze or being touched by
someone who is ill. Sanitizing the unit can also be part of
regular cleaning routine.
Stainless Surfaces
Stainless door panels, handles and frames can discolor
when exposed to chlorine gas, pool chemicals, saltwater or
cleaners with bleach.
Keep your stainless unit looking new by cleaning with a
good quality all-in-one stainless steel cleaner and polish
monthly. For best results use Claire
®
Stainless Steel
Polish and Cleaner. Comparable products are acceptable.
Frequent cleaning will remove surface contamination that
could lead to rust. Some installations may require cleaning
weekly.
Do not clean with steel wool pads.
Do not use stainless steel cleaners or polishes on
any glass surfaces.
Clean any glass surfaces with a non-chlorine glass cleaner.
Do not use cleaners not specically intended for
stainless steel on stainless steel surfaces (this
includes glass, tile, and counter cleaners).
If any surface discoloring or rusting appears, clean it
quickly with Bon-Ami
®
or Barkeepers Friend Cleanser
®
and
a nonabrasive cloth. Always clean with the grain. Always
nish with Claire
®
Stainless Steel Polish and Cleaner or
comparable product to prevent further problems.
Using abrasive pads such as ScotchBrite™ will
cause the graining in the stainless steel to
become blurred.
Rust not cleaned up promptly can penetrate the
surface of the stainless steel and complete
removal of the rust may not be possible.
CLEAN INTERIOR COMPONENTS
Use warm or hot water with dish soap to clean all removed
components and interior surfaces. You may use a vinegar and
water solution in place of soap. Proceed to sanitizing.
Note: Cleaning soaps and vinegar solutions are not
sanitizers.
SANITIZE INTERIOR COMPONENTS AND SURFACES
Choose a Commercial Sanitizer Safe for Stainless
Steel
• Read the directions for proper use to ensure that the
surface will actually be sanitized
• Many products require rinsing with water after use,
especially when food will be touching the surface
• Some products require a wait time before rinsing
• Verify the sanitizer you are using is safe for stainless
steel.
Mix Your Own Sanitizer
Isopropyl Alcohol (rubbing alcohol)
1. Fill a clean, empty spray bottle with isopropyl alcohol
2. Spray surface
3. Wait 20 minutes
4. Dampen a non-abrasive cloth with isopropyl alcohol and
wipe down surface
5. Dry surface with a clean dry non-abrasive cloth
Unscented Bleach and Water
1. Create a solution of 1 tablespoon of unscented bleach
with one gallon of water.
2. Submerse small parts for no more than 3 minutes - rinse
immediately and allow to air dry or dry with a disposable
paper towel.
3. Fill a clean, empty spray bottle with bleach solution.
4. Spray surface.
5. After 2-3 minutes, use clean potable water to thoroughly
rinse o surface. Allow to air dry or dry with a disposable
paper towel.
6. Sanitize the door and all holes where the hinges attach to
the unit and the brackets attach to the door as well as all
the screws.
CLEAN EXTERIOR SURFACES
Use Bon-Ami
®
or Barkeepers Friend Cleanser
®
and a
nonabrasive cloth. Always clean with the grain. Always nish
with Claire
®
Stainless Steel Polish and Cleaner or comparable
product to prevent further problems.
18
USER GUIDE
Cleaning
INTERIOR CLEANING & SANITIZING
NOTICE
Do not use any solvent-based or abrasive
cleaners. These types of cleaners may transfer taste
and/or odor to the interior products and damage or
discolor the interior.
DEFROSTING
Under normal conditions this unit does not require manual
defrosting. Minor frost on the rear wall or visible through
the evaporator plate vents is normal and will melt during
each cycle.
If there is excessive build-up of 1/4” (6 mm) or more,
manually defrost the unit.
Ensure the door is closing and sealing properly.
High ambient temperature and excessive humidity can also
produce frost.
CAUTION
!
DO NOT use an ice pick or other sharp instrument
to help speed up defrosting. These instruments
can puncture the inner lining or damage the
cooling unit. DO NOT use any type of heater to
defrost. Using a heater to speed up defrosting can
cause personal injury and damage to the inner
lining.
NOTICE
The drain pan was not designed to capture the
water created when manually defrosting. To
prevent water from overowing the drain pan
and possibly damaging water sensitive ooring,
the unit must be removed from cabinetry.
To defrost:
1. Disconnect power to the unit.
2. Remove all products from the interior
3. Prop the door in an open position (2 in. [50 mm]
minimum).
4. Allow the frost to melt naturally.
5. After the frost melts completely, clean the interior and
all removed components. (See INTERIOR CLEANING).
6. When the interior is dry, reconnect power and turn
unit on.
19
USER GUIDE
Cleaning Condenser
Cleaning the Condenser
Disconnect electric power to the unit before
cleaning the condenser.
DO NOT use any type of cleaner on the condenser
unit. Condenser may be cleaned using a vacuum,
soft brush, or compressed air.
The condenser should be cleaned 2-3 times a year to
remove any lint or dust.
1. Remove center louvers from grille by grasping both
ends, lifting up, and pulling toward you. The center
louvers come out in a single unit.
2. Use a vacuum with a soft brush to
remove all dust and lint on and around
the condenser.
3. To replace the center louvers, line up the tabs to the
slots, push in, and pull down.
WARNING
!
SLOT
SLOT
Condenser
LIFT UP,
PULL OUT
Remove
Center
Louvers
20
USER GUIDE
Troubleshooting
Troubleshooting
BEFORE CALLING FOR SERVICE
If you think your product is malfunctioning, read the
CONTROL OPERATION section to clearly understand the
function of the control.
If the problem persists, read the NORMAL OPERATING
SOUNDS and TROUBLESHOOTING GUIDE sections below
to help you quickly identify common problems and possible
causes and remedies. Most often, this will resolve the
problem without the need to call for service.
IF SERVICE IS REQUIRED
If you do not understand a troubleshooting remedy, or your
product needs service, call +1.414.354.0300.
When you call, you will need your product Model and Serial
Numbers. This information appears on the Model and Serial
number plate located on the upper right or rear wall of the
interior of your product.
NORMAL OPERATING SOUNDS
All models incorporate rigid foam insulated cabinets to
provide high thermal eciency and maximum sound
reduction for its internal working components. Despite
this technology, your model may make sounds that are
unfamiliar.
Normal operating sounds may be more noticeable because
of the unit’s environment. Hard surfaces such as cabinets,
wood, vinyl or tiled oors and paneled walls have a
tendency to reect normal appliance operating noises.
Listed below are common refrigeration components with
a brief description of the normal operating sounds they
make.
NOTE: Your product may not contain all the components
listed.
• Compressor: The compressor makes a hum or pulsing
sound that may be heard when it operates.
• Evaporator: Refrigerant owing through an evaporator
may sound like boiling liquid.
• Condenser Fan: Air moving through a condenser may
be heard.
• Automatic Defrost Drain Pan: Water may be heard
dripping or running into the drain pan when the unit is
in the defrost cycle.
TROUBLESHOOTING GUIDE
DANGER
!
ELECTROCUTION HAZARD. Never attempt to
repair or perform maintenance on the unit before
disconnecting the main electrical power.
Troubleshooting
What to check when problems occur:
Problem Possible Cause and Remedy
Digital Display
and Light Do Not
Work.
Ensure power is connected to the unit.
If the unit is cooling, it may be in
Sabbath mode.
Interior Light
Does Not
Illuminate
If the unit is cooling, it may be in
Sabbath mode.
Light Remains
on When Door Is
Closed.
Press the light icon and close the
door.
Unit Develops
Frost on Internal
Surfaces.
Frost on the rear wall is normal and
will melt during each o cycle.
If there is excessive build-up of 1/4”
or more, manually defrost the unit.
Ensure the door is closing and sealing
properly. High ambient temperature
and excessive humidity can also
produce frost.
Unit Develops
Condensation
on External
Surfaces.
The unit is exposed to excessive
humidity. Moisture will dissipate as
humidity levels decrease.
Digital Display
Functions, But
Unit Does Not
Cool.
Ensure the unit is not in “Showroom
Mode.” Momentarily unplug or
interrupt power supply to the unit.
Digital Display
Shows
indicates the door may be opened
too long. Ensure the door is closing
properly. For other error codes contact
Customer Service.
Product is Freezing
Because product in contact with
the rear wall may freeze, ensure no
product is touching the rear wall.
Adjust the temperature to a warmer
set point.
21
USER GUIDE
Troubleshooting
Problem Possible Cause and Remedy
Product is Not Cold
Enough
Air temperature does not indicate product
temperature. See CHECKING PRODUCT
TEMPERATURE below.
• Adjust the temperature to a cooler set
point.
• Ensure unit is not located in excessive
ambient temperatures or in direct
sunlight.
• Ensure the door is closing and sealing
properly.
• Ensure the interior light has not
remained on too long.
• Ensure nothing is blocking the front
grille, found at the bottom of the unit.
• Ensure the condenser coil is clean and
free of any dirt or lint build-up.
CHECKING PRODUCT TEMPERATURE
To check the actual product temperature in the unit:
1. Partially ll a plastic (nonbreakable) bottle with water.
2. Insert an accurate thermometer.
3. Tighten the bottle cap securely.
4. Place the bottle in the desired area for 24 hours.
5. Avoid opening the unit during the testing period.
6. After 24 hours, check the temperature of the water.
If required, adjust the temperature control in a small
increment (see CONTROL OPERATION).
Causes which aect the internal temperatures of the
cabinet include:
• Temperature setting.
• Ambient temperature where installed.
• Installation in direct sunlight or near a heat source.
• The number of door openings and the time the door is
open.
• The time the internal light is illuminated. (This mainly
aects product on the top rack or shelf.)
• Obstruction of front grille or condenser.
22
USER GUIDE
Wire Diagram
Wire Diagram
Condenser Fan
Compressor
Thermistor 3
Evap Fan Upper
User Interface
Door Switch (Reed Style)
Evap Switching Valve
Thermistor 4
Thermistor 2
Thermistor 1
BK
RD
BK
BK
RD
BK
BK
RD
RD
RD
RD
BK
BK
WH WH
BK
BK
BK
BK
BK
BK
BK
BK
WH
WH
BK
BK
PU
BK
WH
BK
WH
WH
BK
Programming Port
DIAGNOSTICSS
USER INTERFACE
VCC CONTROL
Interior LED
OG
RD
BK
WH
GN
GN
WH
RD
BK
BK
BU
WH
WH
WH
BU
BU
BK
BK
Evap Fan Lower
YL
PU/YL
WH
N L 1 2 3 4 5 6
22
11
1
23
USER GUIDE
Product Liability
Product Liability
Field service technicians are authorized to make an initial
assessment in the event of reported damages. If there are
any questions about the process involved, the technician
should call the manufacturer for further explanation.
While inspecting for defects or installation issues, photos
should be taken to document any damages or issues found.
During the assessment, if the service technician is able to
nd the source of the damage and it can be resolved by
replacement of a part, the servicer is authorized to replace
the part in question. The part that caused the damage
must be returned to the manufacturer in its entirety. The
part must be clearly labeled with the serial number of the
unit it was removed from, the date, and the servicer who
removed the part.
If the service technician determines the damage is the
result of installation issues (water connection/drain, etc.),
the consumer would be notied and the issues shall be
resolved at the direction of the consumer.
If damage is evident and the service technician is unable
to nd the source, the manufacturer must be contacted at
+1.616.754.5601 for further direction.
1260 Van Deinse St. Greenville, MI
T: +1.616.754.5601
Website: vikingrange.com/commercial
24
USER GUIDE
Parts
Pa rts
2
3
5
7
4
21
9
12
13
14
15
16
18
23
26
1017
6
24
8
19
20
11
25
* NOT PICTURED
VCWD630-SG51A
Item
Description
Service P/N
1
115V MECHANICAL HARNESS KIT *
90-54175-00
2
ACCESS COVER
90-54174-00
3
BYPASS VALVE ASSEMBLY
90-54178-00
4
COMPRESSOR
90-54177-00
5
CONDENSOR ASSEMBLY
90-54166-00
6
CONDENSOR FAN MOTOR
90-54176-00
7
CONTROL BOARD
90-54170-00
8
DOOR ASSEMBLY (LH)
90-54194-00
9
DOOR GASKET
90-54182-00
10
DOOR HANDLE
90-54190-00
11
DOOR RETURN ASSEMBLY (LH)
90-54197-00
12
DOOR SWITCH (LH)
90-54193-00
13
DRAIN PAN
90-54189-00
14
EVAP FAN ASSEMBLY
90-54181-00
15
EVAPORATOR ASSEMBLY
90-54179-00
16
GRILLE (LH)
90-54192-00
17
KEYS (2)
90-54185-00
18
LED LIGHT STRIP
90-54169-00
19
LEVELER MODULES ASSEMBLY
90-54187-00
20
LOWER HINGE KIT (LH)
90-54196-00
21
MAIN CONTROL BOARD KIT
90-54167-00
22
POWER CORD *
90-54191-00
23
THERMISTOR ASSEMBLY
90-54172-00
24
UI DISPLAY KIT
90-54173-00
25
UPPER HINGE KIT (LH)
90-54195-00
26
UPPER WINE SHELF
90-54186-00
25
USER GUIDE
R-600A Specications
USER GUIDE
R-600A Specifications 1
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
R-600A Specifications
For R-600a refrigerant service tips and more videos, go
to: www.u-line.com/videos
.
WARNING
!
Flammability warnings for a pure-iso-butane
refrigerant.
Technician m ust observe al l federal, st ate and local la ws regarding r efrigerants .
Gloves and Eye Protection must be used.
R-600a is considered non-toxic, but is flammable
when mixed with air.
Keep a dry powder type fire extinguisher in the
work area.
R-600a is heavier than air, do not allow any
leakage/migration to low areas such as
basements and stairs.
Never use a torch on a fully charged
refrigeration system.
Never substitute U-Line OEM replacement parts
or methods of construction.
R-600a must be stored and transported in
approved containers.
26
R-600A Specications
USER GUIDE
USER GUIDE
R-600A Specifications 2
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
WARNING
!
Only skilled and well trained service technicians
permitted to service R-600a equipped products.
All tools and equipment must be approved for
use with R-600a refrigerant.
Local, state and federal laws, standards must be
observed along with proper certification and
licensing.
Ventilation is required during servicing.
No conversions to R-600a from any other
refrigerants. OEM R-600a equipped unit only.
Service area must be free of ignition sources.
No smoking is allowed in the service area.
All replacement electrical components must be
OEM and installed properly (sealed and
covered).
If the evaporator is cold prior to service, it must
be thawed prior to service.
When using a vacuum pump, start pump before
opening refrigeration system.
Vacuum pump and recovery equipment should
be at least 10 feet from the work area.
It is recommended that a simple LPG gas
detector is on site during service.
Ensure that all R-600a is removed from the
system prior to brazing any part of the sealed
system.
Only a clean, dry leak free system should be
charged with R-600a.
R-600A SPECIFICATIONS/LABELING
R-600a equipped products are labeled (both the unit and
the compressor).
R-600a is colorless and odorless.
R-600a is considered non-toxic, but is flammable when
mixed with air.
Do not remove or alter any R-600a labeling on the
product.
Use only a refrigerant grade R-600a from a properly
labeled container.
RECOVERING/RECLAIMING R-600A
(R-600a has been exempted from recovery/reclaiming
requirements by the US EPA)
Recovery/Reclaiming equipment must be approved for use
with R-600a.
Ensure the evaporator is at room temperature prior to
recovery/reclaiming R-600a.
Use a common piercing pliers or piercing valve to remove
R-600a from the compressor process tube. (Note: Piercing
devices must not be left on the system and must be
replaced with a Schrader type valve.)
27
USER GUIDE
R-600A Specications
USER GUIDE
R-600A Specifications 3
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Evacuate/reclaim via the piecing pliers to ensure the
system is empty of R-600a before any system work is
performed.
The recovery cylinder must be evacuated (no air inside)
prior to accepting R-600a.
The recovery cylinder must not be filled more than 45%
safe fill level and refrigerants must not be mixed.
The recovery cylinder must be clearly marked with R-
600a and Flammable Warning labels.
Ensure proper ventilation during recovery/reclaiming of R-
600a.
Start vacuum pump/recovery pump prior to piercing the
compressor process tube.
Follow recovery/reclaim OEM instructions for the specific
equipment used.
SYSTEM REPAIR
Ensure no residual R-600a refrigerant is left within the
system prior to repair (simple venting is not sufficient).
Evacuate and charge with dry nitrogen for leak checks.
Repair leaks or replace system parts as required.
When re-brazing, the system must be purged with dry
nitrogen and at least one access point open to the
atmosphere.
When re-brazing, proper ventilation is required along with
constant monitoring for the presence of R600a refrigerant.
The filter dryer must be replaced any time the sealed
system is serviced.
No system should be open to the atmosphere for longer
than 15 minutes to avoid moisture migration into the
system components.
LEAK DETECTION
After removal of the R-600a, the unit can be charged with
dry nitrogen or helium.
Electronic leak detection or soap solution can be used to
check for nitrogen/helium leaks.
Never use a halide torch or lighted match to check the
system for leaks at any time.
The high side of the refrigeration system (compressor
discharge to outlet of drier) must be leak tested with the
compressor running.
28
R-600A Specications
USER GUIDE
USER GUIDE
R-600A Specifications 4
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
The low side of the refrigeration system (evaporator,
compressor and suction line) must be leak tested with the
compressor off (equalized pressure).
RECHARGING
No air is ever to be allowed inside the refrigeration system
(R-600a refrigerant or dry nitrogen only).
Never use a torch on a fully charged refrigeration system.
Install a Schrader Type access port on the compressor
process stub.
Evacuate the system to 100 microns prior to charging.
Weigh in the R-600a charge using a refrigerant scale. (run
compressor an extra two minutes to clear the charging
hoses).
Seal the Schrader Type access port, a proper cap and seal
must be used to close the system.
SUMMARY
Safely handling R-600a requires proper procedures and
training.
R-600a approved service tools must be used.
R-600a labeling must not be removed or altered.
Proper ventilation during service is required.
Never apply a torch to a charged R-600a refrigeration
system.
Use OEM replacement service parts and do not alter the
construction of the unit.
29
USER GUIDE
System Diagnosis Guide
System Diagnosis Guide
REGRIGERATION SYSTEM DIAGNOSIS GUIDE
System
Condition
Suction
Pressure
Suction
Line
Compressor
Discharge
Condenser Capillary
Tube
Evaporator Wattage
Normal Normal Slightly
below room
temperature
Very hot Very hot Warm Cold Normal
Overcharge Higher than
normal
Very cold
may frost
heavily
Slightly warm
to hot
Hot to warm Cool Cold Higher than
normal
Undercharge Lower than
normal
Warm-
near room
temperature
Hot Warm Warm Extremely
cold near
inlet - Outlet
below room
temperature
Lower than
normal
Partial
Restriction
Somewhat
lower than
normal vacuum
Warm-
near room
temperature
Very hot Top passes
warm -
Lower
passes cool
(near room
temperature)
due to liquid
Room
temperature
(cool) or
colder
Extremely
cold near
inlet - Outlet
below room
temperature
backing up
Lower than
normal
Complete
Restriction
In deep
vacuum
Room
temperature
(cool)
Room
temperature
(cool)
Room
temperature
(cool)
Room
temperature
(cool)
No
refrigeration
Lower than
normal
No Gas 0 PSIG to 25” Room
temperature
(cool)
Cool to hot Room
temperature
(cool)
Room
temperature
(cool)
No
refrigeration
Lower than
normal
CAPILLARY TUBE
DRYER
CONDENSER
COMPRESSOR
EVAPORATOR
30
USER GUIDE
Compressor Specications
FMSY9C
REFRIGERANT R600A
VOLTAGE 115 VAC
FREQUENCY 50/60 HZ
START WINDING 15.35 Ohm at 770 F
RUN WINDING 15.35 Ohm at 770 F
RUN TO START 15.35 Ohm at 770 F
LRA 17A
FLA 25A
STARTING DEVICE INVERTER DRIVEN
31
USER GUIDE
Troubleshooting Extended
Troubleshooting - Extended
CAUTION
!
Never attempt to repair or perform maintenance
on the unit until the main electrical power has
been disconnected from the unit.
SPECIFIC ERRORS AND ISSUES
The advanced diagnostic capabilities of the electronic
controls utilized on the 1, 3, and 5 Class units allow for
easy and thorough troubleshooting.
Navigation of the control is the key and is explained in
the CONTROL OPERATION section of the manual, along
with control button layout, control function descriptions,
a service mode menu and service menu selection
explanations.
Verication of temperature and thermistor performance can
be identied by directly viewing thermistor readings in the
service mode.
Included in this section are some diagnostic tips and of
course, if additional help is required, please contact the U-
Line Corp, “Customer Care Facility” at +1.414.354.0300 for
assistance.
NORMAL OPERATING SOUNDS
All models incorporate rigid foam insulated cabinets to
provide high thermal eciency and maximum sound
reduction for its internal working components. Despite
this technology, your model may make sounds that are
unfamiliar.
Normal operating sounds may be more noticeable because
of the unit’s environment. Hard surfaces such as cabinets,
wood, vinyl or tiled oors and paneled walls have a
tendency to reect normal appliance operating noises.
Listed below are common refrigeration components with a
brief description of the normal sounds they make. NOTE:
Your product may not contain all the components listed.
• Compressor: The compressor makes a hum or pulsing
sound that may be heard when it operates.
• Evaporator: Refrigerant owing through an evaporator
may sound like boiling liquid.
• Condenser Fan: Air moving through a condenser may
be heard.
• Automatic Defrost Drain Pan: Water may be heard
dripping or running into the drain pan when the unit is
in the defrost cycle.
Solenoid Valves: An occasional clicking sound may be
heard as solenoid valves are operated.
32
USER GUIDE
Troubleshooting Extended
TROUBLESHOOTING GUIDE
Concern Potential Causes Action
Not Cooling Compressor overheating Verify proper air ow through condenser. Is condenser clean?
Conrm condenser fan operation.
Compressor not operating Test overload and relay, replace as needed.
Compressor operating - no cooling Refer to System Diagnosis Guide.
Frozen Product Control set too cold Adjust Set Point Temp accordingly.
Thermistor failure Check Error Log in Service Mode, OHM thermistor.
Frost Buildup
Inside Unit
Door Ajar or Restricted from Closing Check door clearance to adjoining cabinetry. Check
distribution of product in unit.
Thermistor failure OHM thermistor
Display Not
Working
Display unplugged Verify that both ends of the display wiring are rmly
connected.
Display wiring broken or damaged Perform continuity test of wiring and replace as needed.
Interior Lights Not
Working
Door switch misaligned or defective Check the function of reed switch and door magnet
adjustment.
Noisy Refrigeration tubing touching cabinet Carefully reposition tubing.
Fan blade obstruction (wiring, foam
insulation, packaging material)
Remove obstruction.
33
USER GUIDE
Troubleshooting Extended
MAIN CONTROL
The main control board is very robust and is rarely the
cause of system issues. It is important to fully diagnose
the board for any suspected failures before attempting
to remove the board for replacement or service. Follow
the guidelines below to fully test and diagnose the main
control.
Power Fault
If the unit does not (or seems to not) power on, follow the
ow chart below to help diagnose the issue. Before begin-
ning it is important to rst verify the unit is not simply set
to sabbath mode.
Check Voltage
At Wall Outlet
Verify Voltage At
Main Control
Voltage Input
Check Fuse F1
For Continuity
Replace
Plunger Switch
Replace Main
Board
Replace
Fuse
Replace
Power Cord
Alert Customer
Of Power Failure
Is the Plunger
Switch Operating
Properly?
Inspect
Customer UI
and Data Cable
Connect Test Display
Cycle Power And Check
For Operation
No Voltage
No Voltage
Voltage
Continuity
Operating
Not Operating
No Continuity
No
Yes
Voltage
CAUTION
!
Precautions must be taken while working with
live electrical equipment. Be sure to follow
proper safety procedures while performing tests
on live systems.
PLUNGER SWITCH
A plunger switch is used to monitor door state. When the
door is closed it comes into contact with the plunger which
closes a circuit which turns the light and display o. When
the door is open the plunger moves outward and opens the
circuit. If the door is left open for longer than 5 minutes
the switch will trigger an error code and set an audible
warning.
34
USER GUIDE
Control Operation-Service
Control Operation-Service
BUTTON LAYOUT
CONTROL FUNCTION GUIDE
FUNCTION COMMAND DISPLAY/OPTIONS
ON/OFF Press and release
Unit will immediately
turn ON or OFF
Sabbath Mode See “Sabbath Mode”
section
1. Hidden Button
2. Plus Button
3. Minus Button
4. Light Button
5. Power Button
6. Zone Button
-Access Service Menu
-No LED directly above. All LEDs turn on with button
-Increases temperature
-Navigates through service menu
-Decreases temperature
-Navigates through service menu
-Activates light for 3 hours on select models
-Used to select items in service menu
-Turns unit o/on
-Toggles between zones
SHOWROOM MODE
This mode is designed to show units in a display
environment. When in this mode the only functions will be
the control and cabinet lights. The compressor, fans, etc.
will not operate. To enter/exit this mode hold the light key
and the power key for 5 seconds. The display will ash
once and beep and the degree symbol will begin to ash.
When the degree symbol is ashing the unit will allow the
use of the control for demonstrations. The unit can be left
in this mode indenitely.
SERVICE MODE
This mode has options available for service diagnostics.
To enter the mode hold the hidden key for 10 seconds.
The display will show “0.” When in this mode use the up
and down arrows to select the desired option. The LIGHT
key is the ENTER key and will initiate the function. If
changing a setting, you must press the LIGHT key again
to retain the changed setting. To exit the service mode
scroll to option “0” and press the LIGHT key. After ve
minutes of not touching any keys the mode will also exit
automatically.
1 2 3 4 5 6
Hidden
Button
PROGRAMMING THE UNIT TO CORRECT
MODEL NUMBER
1. Disconnect the unit from power source.
2. Push and hold the hidden button.
3. While still holding the hidden button, plug the unit into
the appropriate power source.
4. When the ashing digits appear (3-5 seconds), use the
Plus and Minus buttons to select model number 75.
5. Press the light bulb button once.
6. The display will blink, and then will appear as the
programmed display.
35
USER GUIDE
Control Operation-Service
SERVICE MODE GUIDE SERVICE MODE GUIDE
0. Exit
1. Thermistor 1 temperature not including osets.
2. Thermistor 2 temperature not including osets.
3. Thermistor 3 temperature not including osets.
4. Thermistor 4 temperature not including osets.
5. Thermistor 1 oset. (+/- 10)
6. Thermistor 2 oset. (+/- 10)
7. Thermistor 3 oset. (+/- 10)
8. Thermistor 4 oset. (+/- 10)
9. Thermistor 2 set point
10. Thermistor 3 set point.
11. Thermistor 4 set point.
12. Defrost Interval (0 to 99 hr)
13. Defrost duration (0 to 99 min)
14. Error Log (See Appx D)
15. Clear error log (hold light key until cleared)
16. Thermistor 1 dierential (+5)
17. Thermistor 3 dierential (+5)
18. Evaporator fan on delay (0 to 99 sec)
19. Evaporator fan o delay (0 to 99 sec)
20. Individual component toggle
- Option #0 – Exit
- Option #1 – Relay 1
- Option #2 – Relay 2
- Option #3 – Relay 3
- Option #4 – Relay 4
- Option #5 – Relay 5
- Option #6 – Relay 6
- Option #7 – DC Output 1
- Option #8 – DC Output 2
- Option #9 – DC Output 3
- Option #10 – DC Output 4
- Option #11 – DC Output 5
- Option #12 – Serial output (Compressor)
21. Model number
22. Light All Segments
23. Activate Defrost/Harvest- press and hold for 3 seconds
to activate defrost/harvest
24. Defaults- press and hold for 3 seconds to restore all
values to factory defaults.
25. Main Software (Display only)
26. Live Log Period (frequency that data is output to
diagnostics port)
27. Factory test mode (0=O, 1=On)
28. Compressor RPM
29. Freeze time adjust (Model 54 only)
30. Harvest time adjust (Model 54 only)
31. Low temp alarm limit (Model 55 only)
32. High temp alarm limit (Model 55 only)
1. THERMISTOR 1 - TOP ZONE
This shows the pure thermistor reading with no
osets taken into account.
2. THERMISTOR 2 - TOP EVAPORATOR
This shows the pure thermistor reading with no
osets taken into account.
3. THERMISTOR 3 - BOTTOM ZONE
This shows the pure thermistor reading with no
osets taken into account.
4. THERMISTOR 4 - BOTTOM EVAPORATOR
This shows the pure thermistor reading with no
osets taken into account.
5. THERMISTOR 1 - TOP ZONE OFFSET
(DO NOT MAKE AN ADJUSTMENT TO THIS WITHOUT
CONTACTING TECH LINE) This calibration is only to
be used if actual temperature at thermistor #1 is o
from set point. By adjusting the oset higher, we can
force the unit to drive the temperaturee down below
the set point. (example: adjusting from 0 to +2 will
drop the unit temperature 2 degrees)
6. THERMISTOR 2 - TOP EVAPORATOR OFFSET
This shows the pure thermistor reading with no
osets taken into account.
7. THERMISTOR 3 - BOTTOM ZONE OFFSET
(DO NOT MAKE AN ADJUSTMENT TO THIS WITHOUT
CONTACTING TECH LINE)
8. THERMISTOR 4 - BOT. EVAPORATOR OFFSET
This shows the pure thermistor reading with no
osets taken into account.
9. THERMISTOR 2 - SET POINT MINUS OFFSET
This shows the pure thermistor reading with osets
taken into account.
10. THERMISTOR 3 - SET POINT MINUS OFFSET
This shows the pure thermistor reading with osets
taken into account.
11. THERMISTOR 4 - SET POINT MINUS OFFSET
This shows the pure thermistor reading with osets
taken into account.
12. ADJUST DEFROST INTERVAL: 1-12 HOURS
This will adjust the interval between defrosts from
1-12 hours. Adjusting from the factory settings may
cause undesired temperature.
13. ADJUST DEFROST DURATION: 5-99 MINUTES
The length of the defrost can be adjusted 5-99
minutes long. the other defrost parameters still
apply. Lengthening a defrost may cause higher than
normal temperatures.
36
USER GUIDE
Control Operation-Service
14. VIEW ERROR LOG
A list of errors in the order they occurred will
scroll on the display. All errors are logged in
memory. Only door error is displayed on the
display and has an audible signal.
E1: Thermistor 1 open.
E2: Thermistor 2 open.
E3: Thermistor 3 open.
E4: Thermistor 4 open.
E5: Thermistor 1 shorted.
E6: Thermistor 2 shorted.
E7: Thermistor 3 shorted.
E8: Thermistor 4 shorted.
E9: Door open error.
15. CLEAR ERROR LOG
To clear errors, press and hold (5 seconds)
when CLR is ashing.
16. THERMISTOR - 1 DIFFERENTIAL
This number should not be adjusted
17. THERMISTOR - 3 DIFFERENTIAL
This number should not be adjusted
18. SHOULD NOT BE ADJUSTED
19. SHOULD NOT BE ADJUSTED
20. INDIVIDUAL COMPONENT TOGGLE
21. MODEL NUMBER INDICATOR
Displays the two-digit model number of the
specic unit.
22. LIGHT ALL LED SEGMENTS
23. ACTIVATE DEFROST / HARVEST
24. FACTORY DEFAULTS
-Press and hold for 3 seconds to restore all
values to factory defaults.
Display # Relay / Output
- Option #0 – Exit
- Option #1 – Relay 1
- Option #2 – Relay 2
- Option #3 – Relay 3
- Option #4 – Relay 4
- Option #5 – Relay 5
- Option #6 – Relay 6
- Option #7 – DC Output 1
- Option #8 – DC Output 2
- Option #9 – DC Output 3
- Option #10 – DC Output 4
- Option #11 – DC Output 5
- Option #12 – Serial output (Compressor)
SEE RELAY / OUTPUT CHART
25. MAIN SOFTWARE
26. Does not apply to this model.
27. FACTORY TEST MODEL
0 = OFF, 1 = ON
28. COMPRESSOR RPM
29. DOES NOT APPLY TO THIS UNIT
30. DOES NOT APPLY TO THIS UNIT
31. DOES NOT APPLY TO THIS UNIT
32. DOES NOT APPLY TO THIS UNIT
37
USER GUIDE
Thermistor
Evaporator Thermistor
If an evaporator thermistor fails, the unit will rely on a
preset defrost timer during defrost cycles. The unit will
otherwise operate normally. Refer to defrost section.
Thermistor Resistance Data
Thermistor
Thermistors are used for various temperature readings.
Thermistors provide reliable temperature readings
using a resistance which varies based on surrounding
temperatures. If a faulty thermistor is suspected it may be
tested using an accurate ohmmeter.
All the thermistors in the unit are identical. If a thermistor
is suspected of being defective, the resistance can be
veried. Place the thermistor in an ice water bath, the
resistance should read 16.1k Ohms +/-5% on your meter.
Thermistor connections must be kept clean. A thermistor
connection that has become corroded can cause resistance
values from the thermistor to change as they pass through
a dirty connection to the board.
It is for that reason that we apply dielectric grease to all of
our thermistor connections. Dielectric grease will help to
keep thermistor connections clean and dry.
If you change a thermistor in the unit please re-apply
dielectric grease to the connection. If you encounter
a dirty thermistor connection, you should replace the
thermistor and the thermistor harness.
Thermistor error information can be found in the Control
Operation - Service section.
This unit has four thermistors.
Thermistor One (Top Zone):
Located along the side wall in the upper zone. It is used to
maintain the operating temperature within that zone.
Thermistor Two (Top Evaporator)
Located on the top evaporator - used for defrost.
Thermistor Three (Bottom Zone):
Located along the side wall in the bottom zone. It is used
to maintain the operating temperature within that zone.
Thermistor Four (Bottom Evaporator)
Located on the bottom evaporator - used for defrost.
THERMISTOR FAILURE
Zone Thermistor
If a zone thermistor in the unit fails, the unit will continue
to cool in a backup mode (Self Preservation Mode) to
preserve the integrity of the contents. The unit will
otherwise operate normally.
USER GUIDE
u-line.com
Thermistor
Thermistor Resistance Data
Thermistor
Thermistors are used for various temperature readings.
Thermistors provide reliable temperature readings using a
resistance which varies based on surrounding temperatures. If a
faulty thermistor is suspected, it may be tested using an
accurate ohmmeter.
Thermistor connections must be kept clean. A thermistor
connection that has become corroded can cause resistance
values from the thermistor to change as they pass through a
dirty connection to the board.
It is for that reason that we apply dielectric grease to all of our
thermistor connections. Dielectric grease will help to keep
thermistor connections clean and dry.
If you change a thermistor in the unit, please re-apply dielectric
grease to the connection. If you encounter a dirty thermistor
connection, you should replace the thermistor and the
thermistor harness.
This unit has one thermistor located along the right hand
sidewall of the ice bin. It is used to maintain the ice level in the
bin.
Temp (F) Temp (C)
Nominal Resistance
(OHMS)*
-40 -40 169157
-31 -35 121795
-22 -30 88766
-13 -25 65333
-4 -20 48614
5 -15 36503
14 -10 27681
23 -5
21166
32 0 16330
41 5 12696
50 10 9951
59 15 7855
68 20 6246
77 25 5000
86 30 4029
95 35 3266
104 40 2665
113 45 2186
122 50 1803
131 55 1495
140 60 1247
149 65 1044
158 70 879
167 75 743
176 80 631
*
(+/
-
5%)
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USER GUIDE
Defrost
Defrost
If you have veried that the unit does not have an
ambient air leak, utilize the Control Operation -
Service section and adjust unit to defrost longer
and/or more/less often as needed.
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ENSURING YOUR WARRANTY STAYS VALID
CLEANING AND MAINTENANCE
• Clean the Condenser Every Six Months
Failure to keep the condenser clean can result in permanent damage to the compressor.
The condenser coil is located near the compressor and usually at the bottom of the machine. In order for the condenser to perform
eciently, it must be cleaned about every six months to remove dust and debris and prevent overheating.
• Deep Clean the Ice Machine Every Six Months
Neglecting this cleaning will lead to mold or mildew buildup, cloudy ice, reduced water ow, reduced ice production,
and damage to the machine.
Use only manufacturer-approved, nickel-safe ice machine cleaner and follow all label warnings and
directions. Order ice machine cleaner online: www.u-line.com.
Every six months the ice machine requires a thorough cleaning to remove debris from the bin and ush out impurities that accumulates
from the water supply; clear, craft, and nugget machines are equipped with a built-in cleaning cycle.
• Clean Stainless Steel Surfaces
Your machine is built with quality stainless steel, but it can still rust when not properly maintained.
- Avoid exposure to outdoor elements such as rain, snow, sprinklers or pool splash.
- Use only a non-chlorine, non-abrasive stainless steel cleaner.
- Inspect the machine for any signs of rust. When spotted early, the rust is only on the surface and can usually be scrubbed o.
SAFE INSTALLATION AND MAINTENANCE
• Outdoor Operation
Only machines designed for outdoor use may be operated outdoors.
- The machine should be installed under cover, to avoid exposure to rain, snow, and direct sun.
- The machine should not be not be exposed to chlorinated water such as from pool or hot tub splash.
- Do not operate in temperatures below 45°F (7°C) or above 100°F (38°C).
• Indoor Operation
- Install where the machine will not be exposed to direct sunlight - especially if the appliance a glass door.
- Do not install the machine where it will be exposed to chlorinated water such as from an indoor pool or hot tub splash.
- Do not operate in temperatures below 50°F (10°C) or above 100°F (38°C).
• Location and Ventilation
- Do not block the grille on the front base of the machine; proper airow is essential to cooling.
- Do not operate the appliance inside a cabinet; it has been designed to operate under a counter or free-standing (certain models only).
• Proper Sealing - Beverage Dispensers
- If not sealed properly, excessive condensation, limited cooling, and damage to the machine will occur. When correctly installed, the
insulation should extend from within the refrigerator, through the counter, and into the tap tower.
ELECTRICAL AND DRAINAGE REQUIREMENTS
• Operate With a Safe Electrical Connection
Only operate the appliance on a dedicated circuit to avoid power uctuations and overloads.
- Do not use an extension cord. Only the supplied power cord directly connected to an outlet ensures that the machine will safely receive
adequate power. Extension cords can become unplugged accidentally, overheat, or become damaged. Improper electrical connection will
void the warranty.
• Operate With Proper Drainage
If your appliance requires a drain hookup consult a plumber for proper installation. Improper drainage can cause damage to the machine
as well as its surroundings. Improper drainage will void the warranty.
CAUTION
!
CAUTION
!
CAUTION
!
CAUTION
!
CAUTION
!
CAUTION
!
40
Middleby Refrigeration | 1260 E. Van Deinse, Greenville, MI 48838
Middleby Refrigeration Limited Warranty
THREE YEAR LIMITED PARTS & LABOR WARRANTY – Viking Commercial and U-Line Commercial
For three years from the date of shipment from the factory this warranty covers all parts and labor to repair or replace any part of
the referenced Middleby Refrigeration product (the “Equipment”) that under normal use proves to be defective in materials or
workmanship. This warranty is conditioned upon you promptly notifying Middleby Refrigeration of any claims, and providing
Middleby Refrigeration with all data and information requested by Middleby Refrigeration or its service agents in connection with
such claims as well as all necessary access to your premises and the Equipment. All service provided by Middleby Refrigeration
under the above warranty must be performed by a Middleby Refrigeration factory authorized servicer and dispatched from the
factory, unless otherwise specified by Middleby Refrigeration. Warranty labor is provided at straight time only.
LIMITED FIVE YEAR SEALED SYSTEM PARTS WARRANTY – Viking Commercial and U-Line Commercial
For five years from the date of original purchase, Middleby Refrigeration will cover the following parts only(no labor) if they prove to
be defective under normal commercial use: compressor.
WARRANTY TERMS
These warranties apply only to Equipment installed in any one of the fifty states of the United States, the District of Columbia, or
the ten provinces of Canada. The Equipment must be installed, operated, and maintained in accordance with Middleby
Refrigeration Brand User, Installation and Service Guides, copies of which were provided to you with the Equipment or otherwise
will be furnished to you upon request. Further, this warranty applies only to Equipment shipped from the Middleby Refrigeration
facility after July 1, 2025 and purchased from an authorized dealer.
Except as provided in the Limited Warranty above, the Equipment is provided “as-is”. Middleby Refrigeration disclaims all other
warranties, express, statutory or implied, including without limitation, the implied warranties of title, non-infringement,
merchantability and fitness for a particular purpose. Middleby Refrigeration does not warrant that the Equipment will meet your
specifications or needs. You acknowledge that you are solely responsible for the selection of the Equipment and determining the
suitability of the Equipment for your needs.The warranties only apply to the original purchaser and are non-transferable. Service
must be dispatched from Middleby Refrigeration to be eligible for warranty coverage. The warranties apply to units operated
outside only if designed for outdoor use by model and serial number. Replacement water filters, light bulbs, and other
consumable parts are not covered by these warranties. In-home/business instruction on how to use your product is not covered
by these warranties. Food, beverage, and medicine loss are not covered by these warranties. Use of non OEM parts will void this
warranty.
If the Equipment is located in an area where Middleby Refrigeration factory authorized service is not available, you may be
responsible for a trip charge or you may be required to bring the Equipment to a Middleby Refrigeration factory authorized service
location at your own cost and expense.
Units purchased after use as floor displays, and/or certified reconditioned units, are covered by the limited one year warranty only
and no coverage is provided for cosmetic defects.
To maintain warranty coverage, all preventative maintenance procedures outlined in the Use and Care Manual must be followed.
Signal issues related to Wi-Fi connectivity are not covered by these warranties.
Equipment that is not installed, operated and maintained in accordance with Middleby Refrigeration’s Use and Care Manual or
other written materials provided to you by Middleby Refrigeration or available for the Equipment (as may be updated by Middleby
Refrigeration from time to time, the “Manual”), a copy of which is provided to you with the Equipment or otherwise will be
furnished to you upon request, is excluded from this warranty. This warranty does not apply to damage or failure which results, in
41
Middleby Refrigeration | 1260 E. Van Deinse, Greenville, MI 48838
Middleby Refrigeration’s or its service agent’s sole opinion, from failure to provide a suitable installation and operating
environment (including power and HVAC if applicable) and facilities as prescribed by the Manual, misuse, abuse, accident or
improper use, neglect, power failure or power surges (over or under voltage), or to damage or failure from flood, fire, lightning or
other natural or man-made disasters, or other Acts of God, or to Equipment that has missing or altered serial numbers.
Modifications and Repair: Equipment that has been modified or altered by persons other than Middleby Refrigeration’s or its
service agents, or Equipment that has had non-approved devices or connection items attached thereto, is excluded from coverage
under this warranty. Repair of the Equipment by anyone other than Middleby Refrigeration’s or its authorized service agents will
void all warranties on the Equipment.
Accessories: Accessories and parts (collectively “Accessories”) that are consumed in the normal course of Equipment operation
or maintenance are excluded from this warranty. Failure of or damage to Equipment or components from the use of non-approved
cleaning chemicals, devices or processes is also excluded from this warranty.
Warranty Service, Exclusive Remedy
Middleby Refrigeration will be solely responsible for determining whether or not the Equipment or any component thereof is
defective. Defective components covered by this warranty will be repaired or replaced at Middleby Refrigeration’s option without
charge to you and such repaired or replacement components will be covered by this warranty for the balance of the Warranty
Period. Parts used in the repair of defective components and replacement components may be new, recovered or rebuilt. At its
sole option, Middleby Refrigeration may decide to replace defective Equipment covered by this warranty with new, recovered or
rebuilt Equipment of equal or greater capability, and such Equipment will be covered by this Limited Warranty for the balance of
the Warranty Period. Defective Equipment and components will become the property of Middleby Refrigeration. This paragraph
states Middleby Refrigeration’s sole and exclusive obligation and liability and your sole and exclusive remedy under this warranty.
Middleby Refrigeration shall not be responsible for a failure to provide warranty services due to causes beyond Middleby
Refrigeration’s or its service agents’ control.
Warranty Claims
Claims under this warranty must be reported to Middleby Refrigeration under such reporting service as Middleby Refrigeration
may designate. Upon receipt of the claim and related information and preliminary verification that the claim is valid, Middleby
Refrigeration will promptly notify an authorized service agent to contact you and arrange for an on-site repair visit during the
service agent’s normal working hours. Any costs incurred by Middleby Refrigeration or its service agent associated with a service
agent being refused or unable to gain access to the Equipment on your premises, or a claim not covered by this warranty, will be
charged to you.
Disclaimer of Damages
Middleby Refrigeration disclaims all incidental, special and consequential damages, including but not limited to loss of use, lost
revenue or profits, or substitute use, suffered by you or any third party, whether arising in contract, tort (including negligence), or
otherwise, resulting from any breach by Middleby Refrigeration or its service agents of this warranty, or resulting from the
manufacture, use, or defects, of or in the Equipment, even if Middleby Refrigeration was apprised of the possibility of such
damages.
Customer Indemnity
You agree to indemnify, defend and hold Middleby Refrigeration harmless from all third party claims, demands, judgments, fees
and costs directly or indirectly arising out of or related to your use of the Equipment. You further agree to indemnify and hold
Middleby Refrigeration harmless from any incidental, consequential or special damages suffered by you, including lost revenue or
profits, loss of use, or substitute use, during periods of Equipment failure or loss of use.
Governing Law, Entire Warranty
42
Middleby Refrigeration | 1260 E. Van Deinse, Greenville, MI 48838
This warranty shall be governed and construed in accordance with the laws of the State of Michigan, USA (except with respect to
its provisions regarding conflicts of laws). The warranty described herein is the complete and only warranty for Equipment and
supersedes all prior oral or written agreements and understandings that may have existed between us relating to Equipment
warranties. The terms of this warranty may not be altered, amended or modified except by a signed writing from Middleby
Refrigeration. Any purported alteration, amendment or modification by a service agent or anyone else will not be enforceable
against Middleby Refrigeration.
Charges for Non-Warranty Service or Rejection of Service Visit
In the event that repairs, replacement or service are provided by Middleby Refrigeration’s service agents for work not covered by
this limited warranty, customer agrees to pay the service agent directly according to the service agent’s normal scale of charges. In
the event Middleby Refrigeration is invoiced by the service agent for services not covered under this extended warranty, Middleby
Refrigeration will invoice customer and customer will pay such invoice based on terms of net 10 days. Customer also agrees to pay
any cost incurred by Middleby Refrigeration or its service agent associated with a service agent responding to a call for service, but
then being refused or unable to gain access to the Equipment on Customer’s premises. Failure to submit payment may, at
Middleby Refrigeration’s discretion, result in Middleby Refrigeration voiding the balance of the warranty. In no event will Middleby
Refrigeration authorize service to a customer with an outstanding Non-Warranty invoice.
For parts and service assistance, or to find factory authorized service near you, contact Middleby Refrigeration at 616.754.5601.
7-1-2025 #30757 REV_A
43
