Beverage-Air SM Series User manual

INSTALLATION AND OPERATING INSTRUCTIONS
for all Hydrocarbon
SM School Milk Cooler Models
3779 CHAMPION BLVD, WINSTON-SALEM, NC 27105
Phone: [phone] | Fax: [phone] | Web: beverage-air.com
809-186A 6/6/2020 SEE BACK COVER FOR
WARRANTY REGISTRATION

User Manual for SM School Milk Cooler Beverage-Air
Rev. 06/20Beverage-Air2
WELCOME
Contents
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Important Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Product Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Clearance and Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Unpacking and Set Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Using The Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Sequence of Operations Refrigerator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Cleaning and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Condenser Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Methods For Cleaning Stainless Steel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
For The Service Tech - R290 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
For The Service Tech - Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Limited Warranty (continued) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Important Information
• PLEASE READ THESE INSTRUCTIONS CAREFULLY
BEFORE INSTALLING OR USING, IF RECOMMENDED
PROCEDURES ARE NOT FOLLOWED, WARRANTY
CLAIMS MAY BE DENIED.
• Your warranty registration information is located with
this manual. Please complete the card and submit it to
Beverage-Air within TEN days of installation. Failure
to properly register equipment may limit or void the
warranty.
• Beverage-Air reserves the right to change
specications and product design without
notice. Such revisions do not entitle the buyer to
corresponding changes, improvements, additions, or
replacements for previously purchased equipment.
Thank you for purchasing a Beverage-Air cabinet. This
series has passed our strict quality control inspection and
meets the high standards set by Beverage-Air! You have
made a quality investment that with proper maintenance
will give you many years of reliable service!
Please read the following installation and maintenance
instructions before installing or using your unit. If you
have any questions, Please call our Technical Service
Department at [phone]. 8:00 AM to 5:00 PM EST.

User Manual for SM School Milk Cooler Beverage-Air
Rev. 06/20 Beverage-Air 3
SAFETY
This appliance has been designed with your safety in mind. It has many features to keep you from being harmed. However,
safe operation and maintenance are your responsibilities.
Use: When using this unit, please:
• Move it carefully. If on casters be sure the casters
do NOT run over the power cord.
• Lock the casters when in use.
• Seek help. This machine is heavy! Be sure to move
with enough help to avoid tipping or dropping the
cabinet.
• Prevent children from playing in or on the cabinet.
Persons unable to use this product must be
prevented access.
• Follow all instructions. There are many safety
labels and directions on the unit. Heed them.
• Watch your ngers. There may be pinch points near
the door hinges.
Maintenance
Do NOT:
• Clean a frozen evaporator with a sharp object
• Clean a dirty condenser with a sharp object.
• Store gasoline, kerosene or any other ammable
material near the cabinet.
Do ALWAYS
• Use a Beverage-Air recommended technician certied
to repair R290 equipment.
• Use ONLY Beverage-Air factory service parts. Use of
non OEM parts can be dangerous because of the design
changes needed to safely use R290.
Observe the Caution and Warning notices. They are indicators of
important safety information. Keep this manual for future reference.
Important Information to Add
Record the model number, serial number and the date of installation here for future reference. The model and serial
numbers are on the unit's serial number dataplate, which is located on the left inside wall.
Model Number
Serial Number
Date of Installation
Purchased From
CAUTION
WARNING
CAUTION
CAUTION

User Manual for SM School Milk Cooler Beverage-Air
Rev. 06/20Beverage-Air4
IMPORTANT INFORMATION
This unit is intended to be used in a commercial application. That includes schools and cafeterias.
If installed in a residence some commercial service companies may not be able to service it on site.
The manufacturer has designed and produced this machine with the nest in materials. The manufacturer assumes no
liability for units that have been altered in any way. Alterations or part substitutions will void the warranty.
Limitations
The machine is designed for use indoors in a controlled
environment. It must be kept dry, not overheated or
subjected to excessive cold. May only be connected to
a dedicated electrical circuit. Extension cords are not
permitted.
Minimum Maximum
Voltage 104 127
Room Air Temp 60º F 100º F
Air Flow
Agency Approvals
These marks appear on the dataplate or serial tag, located
in the inside of the left wall. The dataplate also contains
the model and serial numbers as well as electrical
requirements.

User Manual for SM School Milk Cooler Beverage-Air
Rev. 06/20 Beverage-Air 5
Model Cabinet Dimensions
w x d x h (Inches)
Glass
or Solid
Door
Full
Load
Amps
Power Cord
Plug (NEMA)
Refrigerant Type
/ Charge g /
Charge oz
SM34HC 34 x 30 5/8 x 41 1/8 Solid 2.2
5-15P
R-290 / 60 / 2.12
SM49HC 49 x 30 5/8 x 41 1/8 Solid 2.2 R-290 / 70 / 2.82
SM58HC 58 x 30 5/8 x 41 1/8 Solid 2.2
Height includes casters
PRODUCT INFORMATION
• All models will maintain product temperature between 35.5 and 40.5 degrees F. at the factory setting of 38.0F.
• All models are 115 volts, 60 Hz AC.
• ALWAYS REFERENCE YOUR EQUIPMENT DATA PLATE AMPS, REFRIGERANT AND REFRIGERANT CHARGE FOR THE
MOST UP TO DATE AND ACCURATE VALUES.
• There are no access valves on the refrigeration system.

User Manual for SM School Milk Cooler Beverage-Air
Rev. 06/20Beverage-Air6
CLEARANCE AND PLACEMENT
Placement
Consider the following when selecting a location for your Refrigerator:
Clearance:
• Must not be covered - Top
• 0" - Left
• 0" - Right
• 0" - Rear
• 4" - Below
Floor Load: the oor on which the Refrigerator is located must be even and level, free from vibrations, and strong enough
to support the combined weights of the unit and maximum product load.
Ventilation: Grille area at front must be free and clear of any object or wall.
Power Outlet: Dedicated power outlet is located within the length of the unit's power cord.
4
CLEARANCE

User Manual for SM School Milk Cooler Beverage-Air
Rev. 06/20 Beverage-Air 7
UNPACKING AND SET UP
Carefully inspect the shipping carton for damage. This is the only time that shipping damage may be claimed. If damage is
suspected, open the carton immediately and, if there is damage, retain the carton and contact the shipper to make a claim.
Do NOT contact the manufacturer.
Uncrating
Tools Needed: ¾” box wrench, adjustable wrench, level,
at head screw driver, and box cutter.
1. First, remove the cardboard top capping, all clear
tape, and all staples including those at the bottom of
the cardboard carton and skid.
2. Next, start from the top of the carton. Using the box
cutter, carefully make one continuous cut to the
bottom of the skid. Remove cardboard carton and
discard.
3. Then, move unit as close to nal position as possible
before removing the skid.
4. Move unit as close to nal position as possible before
removing the skid.
Note: The skid must be removed before the casters or legs
can be attached.
Do NOT tip unit on its front or sides. If tipped onto the
back, unit must not be started for 3 hours.
Leveling:
Cabinet must be installed on a level surface. Failure to
install on a level surface may result in the door not sealing
or not remaining in position correctly, or during defrost
maintenance, condensed water not draining properly.
Install or attach any accessories that will be used
Remove any plastic covering the stainless steel.
CAUTION
Do NOT loosen casters to level
the cabinet. Casters MUST be
tightly secured to cabinet for
full strength.

User Manual for SM School Milk Cooler Beverage-Air
Rev. 06/20Beverage-Air8
This is a cord-connected unit, and must be connected to its own dedicated power supply. Check the dataplate on the
machine to conrm the voltage and per the dataplate use the correct fuses or HACR circuit breakers.
Note: Do not connect to GFI / GFCI outlets. Connection to that type of outlet can result in product loss due to unsafe
cabinet temperature when GFI device trips from moisture.
Power Cord
This 115 volt model is equipped with a cord and 5-15P plug.
If the power cord becomes damaged, it must be replaced
with the identical cord.
Follow All National and Local Codes
This Unit Must Be Grounded. Do not use extension cords
and do not disable or by-pass ground prong on electrical
plug.
Initial Start Up
Plug the power cord into the proper power supply.
The cabinet will soon begin to blow warm air out of the
bottom area, and the inside wall of the cabinet will begin
to become cold.
The cabinet temperature has been set at the factory and
should not need adjustment, however if it was changed,
the standard setting is 38º F.
Cautions
Care must be taken whenever
moving or servicing the unit. The
refrigerant is contained in a sealed
system, but if released it may be
ammable.
ELECTRICAL
CAUTION

User Manual for SM School Milk Cooler Beverage-Air
Rev. 06/20 Beverage-Air 9
38.0
oF
USING THE UNIT
Operation is simple, just keep it connected to the correct
power supply and the refrigerator will maintain the
internal temperature it has been set to. Keep the doors
and / or drawers closed as much as possible to avoid
unnecessary run time.
The controller displays the current internal temperature.
Adjusting the set temperature lower will NOT cause the
system to lower the temperature faster. When on, the
refrigeration system is always operating at maximum.
The temperature was set at the factory at 38ºF, but
you can adjust it to your own selected temperature. 30
seconds after adjustment, the display automatically
reverts to showing the current temperature.
SM units must be manually defrosted periodically. “Cold
Wall” units like the SM maintain the air temperature of
the cabinet at the set point by cooling the walls below
the set point to approximately 20°F. Because the walls of
the cooler are below the freezing temperature of water,
ice may build up over time. It is important to occasionally
manually defrost the unit to minimize ice build-up.
To manually defrost your milk cooler:
1. Remove the product from your milk cooler and place
it in another refrigerated storage area.
2. Open the lids and doors of your milk cooler and
unplug the power to the unit.
3. Wait approximately 30 min for the frost to melt and
drain to the oor drain. Times may vary with ambient
temperature in the room and ice build-up.
4. After manual defrost, Close the lid and doors and
power the unit by plugging it into the outlet. Return
product to the cooler after the air in the cabinet has
cooled to the desired temperature.
WARNING: DO NOT SCRAPE THE WALLS TO SPEED UP
DEFROSTING. SCRAPING MAY RUIN SURFACE FINISH
OR PUNCTURE WALL AND DAMAGE REFRIGERATION
TUBING BEHIND THE WALL
The compressor and condenser fan motor will only be on
when the controller senses an increase in internal cabinet
temperature passed the set point
Select
Defrost Increase
Decrease
In most cases the only thing displayed will be the cabinet temperature. When something other than normal operation has
occurred, a message will be shown.
Message Displayed Why What to do
Hi Cabinet temperature too warm Conrm doors or drawers are closed.
dOr Door is open Close door, if message does not
change, call for service.
LEA Compressor run time too long Check doors closed. If yes, call for
service.
E01, E02, E03, E04 Sensor unplugged or has failed Call for service.

User Manual for SM School Milk Cooler Beverage-Air
Rev. 06/20Beverage-Air10
SEQUENCE OF OPERATIONS REFRIGERATOR
The refrigerator operates based on the air temperature measured by the probe located at the return air.
ON OFF
COMPONENT OPERATION CONTROLLER ACTION OPERATION CONTROLLER ACTION
COMPRESSOR
Compressor turns
on when the air
temperature at the
probe is above the
sum of the set point
+2
The Compressor
Contact is energized
Compressor turns
o when the air
temperature at probe is
equal to or less than the
set point -2
The Compressor
Contact is de-
energized
(ERC 112 – Terminal #1) (ERC 112 – Terminal
#1)
CONDENSER FAN
The Condenser Fan
turns on when
the Compressor is
running
The Condenser Fan
is wired directly to
the Compressor, not
through the controller
The Condenser Fan
turns o when the
Compressor is not
running
The Condenser Fan
is wired directly to
the Compressor, not
through the controller
Condition
Compressor Condenser Fan Evaporator Fan Lights
Cabinet Temp > Set point + 2 ON ON ON ON or OFF
Cabinet Temperature <= Set point - 2 OFF OFF ON ON or OFF
Defrost OFF OFF ON ON or OFF

User Manual for SM School Milk Cooler Beverage-Air
Rev. 06/20 Beverage-Air 11
Electronic Controller
Control Panel Display
Note: Defrost is manual, LED indicator is inoperative.
Defrost LED Alarm LED
On xed: Defrost active On xed: ALARM Present
O: Defrost is o Flashing: ALARM Silenced
O: No Alarm
Fan LED Compressor LED
On xed: Fan active On xed: Compressor active
O: Fan O Flashing: Delay, protection or activation blocked
O: No Alarm
Keyboard Functions
UP
Quick press and release
• Increases Set Point
Long press and release
• Increases display brightness
DOWN
Quick press and release
• Decreases Set Point
Long press and release
• Decreases display brightness
DEFROST (ESC)
Quick press and release
• Activates manual defrost
Long press and release
• Controller enter stand-by mode
SET (ENTER)
Quick press and release
• Toggles lights on/o
Long press and release
• Toggles display °F/°C
NOTE: When switched on, the instrument panel performs a lamp test for a few seconds.
UP
DOWN
DEFROST (ESC)
SELECT (OK)
Note: When the controller is in a Standby Mode, a blue dot
will be displayed as shown here. To switch out of Standby
Mode, push and release the Defrost button.
.

User Manual for SM School Milk Cooler Beverage-Air
Rev. 06/20Beverage-Air12
Control Panel Connections
Changing the Set point
Electronic Controller Alarms
The alarm condition is always signaled by the alarm icon . To turn o the relative icon will continue ashing.
NOTE: If alarm exclusion times are in progress (ALA folder of the parameter table), the alarm is not signaled.

User Manual for SM School Milk Cooler Beverage-Air
Rev. 06/20 Beverage-Air 13
Alarm
Code
Trigger Automatic
Clearance
Outputs Comments
"Hi" Air temperature is higher than
"ALA->Hat• for "ALA->Htd" User congured Bl ink "Hi" with the highest temperature; If congured: cut in alarm relay, beep the buzzer High temperature alarm
"Lo" Air temperature is lower than
"LAt" for "Ltd'' User congured Blink "Lo" with the lowest temperatu re. If congured: cut in alarm relay, beep the buzzer Low temperature alarm
"Con" Condenser temperature is too
high or too low User congured Blink "Con". If congured: cut in alarm relay, beep the buzzer Condenser alarm
"dor" Door open for more than Always Blink "dor". If congured: cut in alarm relay, beep the
buzzer Door open alarm
"uHi" Line voltage is higher than "Cop-
>uHi" Always Blink "uHi". If congu red: cut in alarm relay, beep the buzzer High voltage alarm
"uLi" Line voltage is higher than "Cop-
>uLi" Always Blink "ulo". If congured: cut in alarm relay, beep the buzzer. Low voltage alarm
"LEA" Compressor cont inuous running
for more than "ALA->LEA" Always Blink "LEA". If congured: cut in alarm relay, beep the buzzer Leakage alarm
"E01" "S1" error Always Blink "SOl ". lf congured: cut in alarm relay, beep the
buzzer "S1" sensor failure (short or open)
"E02" "S1" error Always Blink "SO2". lf congured: cut in alarm relay, beep the
buzzer "S2" sensor failure (short or open)
"E03" "S1" error Always Blink "S03 ". lf congured: cut in alarm relay, beep
the buzzer "S3" sensor failure (short or open)
"E04" "S1" error Always Blink "SO4 ". lf congured: cut in alarm relay, beep
the buzzer "S4" sensor failure (short or open)
How to Acknowledge Alarms

User Manual for SM School Milk Cooler Beverage-Air
Rev. 06/20Beverage-Air14
CLEANING AND MAINTENANCE
Cleaning Schedule:
Cabinet
Daily wipe down
Weekly interior
Condenser coil
Quarterly cleaning
Gaskets
Daily inspection
Routine maintenance
Annually
Daily Exterior Cleaning
It is much easier to clean on a regular basis than to have to remove stains once they have built up.
1. Wash with a clean sponge and a mild detergent that
does not contain chlorine.
2. Rinse with clean water.
3. Dry with a soft cloth.
4. Polish with a soft cloth, wiping with the grain.
5. Wipe weekly with stainless steel cleaner.
Weekly Interior Cleaning
1. Remove all food, food related items. Store the food at
a safe temperature.
2. Disconnect power to the unit (unplug it or switch the
breaker o).
3. Remove all loose food particles from the inside walls,
oor, door liner and ceiling.
4. Scrub all interior surfaces and door gaskets with a
warm (100oF to 110oF) detergent solution and a soft
scrub brush.
5. Rinse with clean water and allow to air dry.
6. Restore power.
7. Return food to the unit when it has reached a safe
temperature.
Defrosting
ST units must be manually defrosted periodically. “Cold
Wall” units like the SM and ST maintain the air temperature
of the cabinet at the set point by cooling the walls below
the set point to approximately 20°F. Because the walls of
the cooler are below the freezing temperature of water,
ice may build up over time. It is important to occasionally
manually defrost the unit to minimize ice build-up.
To manually defrost your milk cooler:
1. Remove the product from your milk cooler and place it
in another refrigerated storage area.
2. Open the lids and doors of your milk cooler and unplug
the power to the unit.
3. Wait approximately 30 min for the frost to melt and
drain to the oor drain. Times may vary with ambient
temperature in the room and ice build-up.
WARNING: DO NOT SCRAPE THE WALLS TO SPEED UP
DEFROSTING. SCRAPING MAY RUIN SURFACE FINISH OR
PUNCTURE WALL AND DAMAGE REFRIGERATION TUBING
BEHIND THE WALL
4. After manual defrost, Close the lid and doors and power
the unit by plugging it into the outlet. Return product to
the cooler after the air in the cabinet has cooled to the
desired temperature.

User Manual for SM School Milk Cooler Beverage-Air
Rev. 06/20 Beverage-Air 15
CONDENSER CLEANING
Rotating fan blade can cause
personal injury.
Unplug unit from power supply
before beginning to clean
condenser
CAUTION
Keeping the condenser coil clean is critical to ecient
operation.
1. Unplug unit from power supply.
2. Remove the Phillips head screws on the left and right
of the rear panel
3. Pull the panel away from the unit.
4. Brush o the surface of the condenser ns. Do NOT
bend the ns.
5. Vacuum the surface of the condenser ns.
6. To reinstall the rear panel line up the screw holes and
reinstall the Philips head screws.
Note: If the coil is greasy, the coil will need to be cleaned
with coil cleaner and that should be left to an experienced
technician.
Note: Air lters are not recommended as they restrict the
ow of cooling air.

User Manual for SM School Milk Cooler Beverage-Air
Rev. 06/20Beverage-Air16
Cleaning Needed Cleaning Agent Method of Application Aect on Finish
Smears and ngerprints
Areal 20, Lac-O-Nu, Lumin Wash
O’Cedar Cream Polish, Stainless
Shine.
Rub with cloth as directed
on the package.
Satisfactory for use on all
nishes.
Provides barrier lm to
minimize prints.
Stubborn Spots and
Stains, Baked-On
Splatter, and Other
Light Discolorations
Allchem Concentrated Cleaner.
Apply with damp sponge or
cloth.
Rub with damp cloth.
Use in direction of polish lines
on No. 4 (polished) nish. May
scratch No.
2 (mill) and Nos. 7 and 8
(polished) nishes.
Samae, Twinkle or Cameo Copper
Cleaner Rub with damp cloth.
Grade FFF Italian pumice, whiting,
or talc. Rub with dry cloth.
Liquid NuSteel
Paste NuSteel or DuBois Temp.
Copper’s Stainless Steel Cleaner
Revere Stainless Cleaner
Household cleansers, such as
Old Dutch, Lighthouse, Sunbrite,
Wyandotte, Bab-O, Gold Dust,
Sapolio, Bon Ami, Ajax, or Comet
Grade F Italian Pumice, Steel
Bright, Lumin Cleaner, Zud,
Restore, Sta-Clean, or Highlite.
Penny-Brite or Copper-Brite.
Use small amount of cleaner.
Rub with dry cloth using a
small amount of cleaner.
Apply with damp sponge or
cloth.
Rub with a damp cloth. May
contain chlorine bleaches.
Rinse
thoroughly after use.
Rub with a damp cloth.
Rub with a dry cloth using a
small amount of cleaner.
Heat tint or
discoloration
Penny-Brite or Copper-Brite.
Past NuSteel, DuBois Temp,
or Tarnite. Revere Stainless Steel
Cleaner. Allen Polish, Steel Bright,
Tenacious Deposits,
Rusty Discolorations,
Industrial
Atmospheric Stains Wyandotte,
Bab-O or Zud.
Rub with a dry cloth.
Rub with a dry cloth or stain-
less steel wool.
Apply with damp sponge or
cloth.
Rub with a damp cloth.
Burnt-On Foods and
Grease Fatty Acids,
Milkstone (where
swabbing or rubbing
is not practical)
Easy-O, De-Grease-It, 4 to 6%
hot solution of such agents as
trisodium phosphate or sodium
tripolyphosphate or 5 to 15% caustic
soda solution
Apply generous coating. Allow
to stand for 10-15 minutes.
Rinse.
Repeated application may be
necessary.
Excellent removal, satisfactory
for use on all nishes.
Tenacious Deposits,
Rusty Discolorations,
Industrial
Atmospheric Stains
Oakite No. 33, Dilac Texo 12, Texo NY,
Flash-Klenz, Caddy Cleaner,
Turco Scale 4368 or Permag 57.
Swab and soak with clean
cloth.
Let stand 15 minutes or more
according to directions on
package, then rinse and dry.
Satisfactory for use on all
nishes
Hard Water Spots
and Scale
Vinegar.
5% oxalic acid, 5% sulfamic acid, 5 to
10% phosphoric acid, or Dilac, Oakite
No. 33, Texo 12, Texo N.Y.
Swab or wipe with cloth. Rinse
with water and dry.
Swab or soak with cloth. Let
stand 10-15 minutes. Always
follow with neutralizer rinse,
and dry.
Satisfactory for all nishes.
Satisfactory for all nishes.
Eective on tenacious deposits
or where scale
has built up.
METHODS FOR CLEANING STAINLESS STEEL

User Manual for SM School Milk Cooler Beverage-Air
Rev. 06/20 Beverage-Air 17
HELP
Trouble Diagnosis for the User
Malfunction Possible Cause Likely Solution
No cooling - unit is silent
Unit not plugged in.
Fuse or circuit breaker tripped.
Power cord plug loose in outlet.
Connect to proper voltage circuit Replace
fuse or reset breaker.
Check outlet for loose connection, replace
as needed
Unit cools but seems to be on all the time Dirty condenser Clean condenser
Space temperature too high
Dirty condenser
Evaporator iced over Unit in high
temperature environment
Clean condenser Defrost unit
Reduce temperature of room
Space temperature too low Temperature control Adjust or replace control
Trouble Diagnosis for the Technician
No cooling - compressor does not hum Temp control stuck in open position Replace temp control.
No cooling - compressor hums but does not
start
Low voltage to unit.
Compressor starting system failure
Check voltage, correct as needed. Check
start relay and start capacitor. See next
step.
No cooling - compressor starts but shuts
o
Compressor start relay failure Compressor
start capacitor failure Replace relay. Replace capacitor.
No cooling - compressor cycles on and o Overheating weak overload
Clean condenser, check fan motor and
blade. Check refrigerant charge. Replace
overload.
Unit cools but turns on and o frequently No product in cabinet. Temperature control
defective Refrigeration issue
Fill cabinet Replace control
Have system checked
Makes excessive noise
Tubing rattle Loose parts
Bent or broken fan blade Noisy fan motor
Check tubing for routing Check for loose
components Replace fan blade
Replace fan motor

User Manual for SM School Milk Cooler Beverage-Air
Rev. 06/20Beverage-Air18
FOR THE SERVICE TECH - R290
Refrigeration service should only be attempted by a trained trade professional certied to work on R290 systems.
Here are some critical service items.
This list does not qualify anyone to service the unit. It is a
reminder and checklist for the service tech. Keep these in
mind for R290 service:
• Wire nuts are NOT to be used when changing an
electrical part.
• The switches in this product are sealed, only exact
replacements may be used.
• The process tubes are to be used for service access.
• Cut out (with tubing cutter) refrigeration components
that are to be replaced. Do NOT un-braze.
• Because R290 can be vented into the air during
service, the venting MUST be in an area free from
ame or spark. It must also be in a well ventilated
area, with a nearby open window or door.
• A sign noting service of a system containing propane
must be attached to the unit during refrigeration
service.
• A combustible gas leak detector must be used to
inform anyone in the area when propane is present in
the air.
Other Information:
Evacuation: It is critical that a refrigeration system be
leak free and internally dry. A thorough evacuation with
a good vacuum pump with a micron gauge attached is the
only way to ensure that the system is dry and ready for a
charge of refrigerant.
Charging: The system is critically charged and the proper
type and amount MUST be weighed in.
Overcharge symptoms: Unit will cool properly but
the suction line temperature will be unusually cold.
Compressor run time will be longer than normal.
Undercharge symptoms: Long run time, poor cooling and
a hot compressor dome are the main symptoms of an
undercharge.

User Manual for SM School Milk Cooler Beverage-Air
Rev. 06/20 Beverage-Air 19
FOR THE SERVICE TECH - WIRING DIAGRAM
CNTRL
32
1
2
M
1
CURRENT RELAY
S
S
R
OL C
CONDENSER FAN
COMP
COMPRESSOR DETAIL (115V 1PH)
WHITE
BLACK
BLACK
WHITE
*SEE CONTROLLER DETAIL
*SEE CONTROLLER DETAIL
BLACK
WHITE

User Manual for SM School Milk Cooler Beverage-Air
Rev. 06/20Beverage-Air20
LIMITED WARRANTY
WARRANTY (Warranty valid in USA and Canada)
THREE (3) YEAR PARTS AND LABOR WARRANTY:
Beverage-Air Corporation warrants to the original
purchaser of Beverage-Air branded equipment, including
all parts thereof, that such equipment is free from defects
in material and workmanship, under normal use, proper
maintenance, and service as indicated by Beverage-Air
installation and operation instructions, for a period of three
(3) years from the date of installation, or thirty-nine (39)
Months from the date of shipment from the manufacturer,
whichever is earlier.
ADDITIONAL FOUR (4) YEAR COMPRESSOR PART
WARRANTY*: In addition to the warranty set forth above,
Beverage-Air warrants the hermetically/semi-hermetically
sealed compressor (part only) for an additional FOUR (4)
years beyond the rst three (3) years warranty period;
not to exceed eighty-seven (87) months from the date of
shipment from Beverage-Air, provided upon receipt of the
compressor, manufacturer examination shows the sealed
compressor to be defective. This extended warranty does
not cover freight for the replacement compressor or freight
for the return of the failed compressor.
* Units shipped after 03/01/2020. Previous warranty
applies to units shipped prior.
EXCEPTIONS:
CT96 Models carry a one (1) year parts and labor warranty,
limited to fteen (15) months from date of shipment
from Beverage-Air. These are excluded from additional
compressor warranty.
SR/SF (Slate) models carry a two (2) year parts and labor
warranty, limited to twenty-seven (27) months from date of
shipment from the Beverage-Air.
Blast Chillers carry a three (3) year parts and labor
warranty; additional two (2) years compressor part only.
Units installed in Residential applications will be not
covered under this warranty. Units are intended for
Commercial use only.
BEVERAGE-AIR
Also, this extended compressor-part only warranty does
NOT apply to any electrical controls, condenser, evaporator,
fan motors, overload switch, starting relay, capacitors,
temperature control, lter/drier, accumulator, refrigeration
tubing, wiring harness, labor charges, or supplies which are
covered by the warranty above.
Normal wear type parts, such as light bulbs/lamps and
gaskets are not covered by this warranty. For the purpose
of this warranty, the original purchaser shall be deemed to
mean the individual or company for who the product was
originally installed.
Our obligation under this warranty shall be limited to
repairing or replacing, including labor, any part of such
product, which proves thus defective. Beverage-Air
reserves the right to examine any product claimed to be
defective.
The labor warranty shall be for self-contained units
only and for standard straight time, which is dened as
normal service rate time, for service performed during
normal working hours. Any service requested outside of
a servicer's normal working hours will be covered under
this warranty at the normal rate and any additional
overtime rate will be at the responsibility of the equipment
purchaser.
Any part or accessory determined to be defective in the
product should be returned to the company within thirty
(30) days under the terms of this warranty and must be
accompanied by a record of the cabinet model, serial
number, and identied with a return material authorization
number (RMA#) issued by the manufacturer.
Special installation/applications, including remote locations,
are limited in coverage by this warranty. Any installation
that requires extra work, and/or travel, to gain access to the
unit for service is the sole responsibility of the equipment
purchaser.
Improper operation resulting from factors, including but not
limited to, improper or negligent cleaning and maintenance,
low voltage conditions, inadequate wiring, outdoor use
(unless otherwise specied) and accidental damage are no
manufacturing defects and are strictly the responsibility of
the purchaser.