Beverage-Air MT Series User manual

INSTALLATION AND OPERATING INSTRUCTIONS
for all Hydrocarbon
MT Refrigerator and Freezer Models
3779 CHAMPION BLVD, WINSTON-SALEM, NC 27105
Phone: [phone] | Fax: [phone] | Web: beverage-air.com
Rev. 10/14/2022
3057689
SEE BACK COVER FOR
WARRANTY REGISTRATION
Project: ____________________________
Item: ______________________________
Loca�on: ___________________________
Approved:
AIA#
SIS#
MARKETEER™ MERCHANDISERS
MT34 Black Hinged Door Model
Hydrocarbon Series
MODEL:
MT34-1B
3779 Champion Blvd., Win󰀬on-Salem, NC 27105
1-888-845-9800 Fax: [phone]
Beverage-Air.com [e-mail]
Please verify qualifying units by visiting:
www.energystar.gov/cfs
MT34™ MERCHANDISER: HINGED DOOR MODEL
 Specicationsaresubjecttochangewithoutpriornotice.Rev.8/21
CABINET CONSTRUCTION
REFRIGERATION SYSTEMOPTIONS & ACCESSORIES
● Usesenvironmentallyfriendly,energye󰀩cientR290refrigerant,
andmeetsallregulatoryrequirementsforCARB,SNAP,DOE&
more
● Condenserisdesignedtobelowmaintenance,andenergy
e󰀩cient
● Automatic,non-electricdefrost
● Epoxycoatedevaporatorcoil
● Extrashelvesandclips
● 3”Casters
● Visislideshelvingkit
● Standardcabinetexteriornishisheavydutysteelwithablack
bakedondurablecoating
● Heavydutyinteriorconstructionincludeswhitecoatedsteel
● Mechanicaltemperaturecontrol
●Modern one piece grill
● DoublepanelowEargonlledglassdoorsfeatureoutsidepane
thatistemperedforaddedsafety
● Doorlocksstandard
● Self-closinghingedglassdoorsfeatures,pocketdoorhandles
● LEDlighting
●Ten(10)epoxycoatedshelves
● Levelingfeet
3 Year Parts / Labor Warranty
Additional 4 Year Compressor Warranty

User Manual for MT Refrigerators and Freezers Beverage-Air
Rev. 10/22Beverage-Air2
WELCOME
Contents
Safety ........................................................................................................................................................................ 3
Important Information .......................................................................................................................................... 4
Product Information .............................................................................................................................................. 5
Clearance and Placement ..................................................................................................................................... 6
Unpacking and Set Up ............................................................................................................................................7
Operating Equipment............................................................................................................................................. 8
Shelf Installation....................................................................................................................................................10
Electrical.................................................................................................................................................................. 11
Cleaning and Maintenance .................................................................................................................................12
Methods For Cleaning Stainless Steel..............................................................................................................14
Help...........................................................................................................................................................................15
For The Service Tech - R-290 and R-600..........................................................................................................16
For The Service Tech - Wiring Diagrams..........................................................................................................17
Limited Warranty .................................................................................................................................................29
Replacement Parts ...............................................................................................................................................32
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.
Owner is not entitled to alter or modify equipment in
any way without manufacturer's approval.
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 MT Refrigerators and Freezers Beverage-Air
Rev. 10/22 Beverage-Air 3
SAFETY
When using electrical appliances, basic safety measures should always be taken. 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
Use care when moving or handling this equipment. It
is equipped with ammable refrigerant. Damage to
refrigerant tubing will increase the risk of a leak
• Prevent children from playing in or on the cabinet. Do
not allow children to climb on or around equipment.
Persons unable to use this product must be prevented
access.
• Follow all manufacturers 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 R-290 or R-600 equipment. Seek factory authorized
technicians trained to safely maintain and service systems
that utilize these ammable refrigerants. RSES oers training
and certication.
• Use ONLY Beverage-Air factory authorized replacement parts.
Use of non OEM parts can be dangerous because of the design
changes needed to safely use R-290 or R-600.
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 MT Refrigerators and Freezers Beverage-Air
Rev. 10/22Beverage-Air4
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IMPORTANT INFORMATION
This unit is intended to be used in a commercial application. That includes bars and restaurants.
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 100 130
Room Air Temp 75.2 º F 100º F
Air Flow, All Models regardles of sections, or door count.
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 MT Refrigerators and Freezers Beverage-Air
Rev. 10/22 Beverage-Air 5
Model Cabinet Dimensions
w x d x h (Inches) Sections Full Load Amps
Power
Cord
Plug
(NEMA)
Refrigerant Type / Charge
(g) / Charge (oz)
REFRIGERATOR MODELS
MT06 21 1/4 X 27 3/4 X 36 1/4 1 2.5 5-15P R-600 / *
MT08 18 7/8 X 20 5/8 X 71 3/8 1 1.8 5-15P R-600 / 45 / 1.52
MT10 24 7/8 X 22 13/16 X 54 3/8 1 3.2 5-15P R-290 /47 / 1.59
MT12 24 7/8 X 22 9/16 X 63 1/4 1 4.1 5-15P R-290 /55 / 1.86
MT21 39 1/8 X 24 1/2 X 61 7/32 2 3.6 5-15P R-290 /65 / 2.2
MT23 29 1/2 X 25 13/16 X 78 5/16 1 7.0 5-15P R-290 /55 / 1.86
MT34 39 1/2 X 27 1/2 X 79 2 7.6 5-15P R-290 /60 / 2.03
MT41-48 47 1/4 X 21 3/4 X 48 1/8 2 3.1 5-15P R-290 / 50 / 1.69
MT41-54 47 1/4 X 21 3/4 X 54 2 3.1 5-15P R-290 / 50 / 1,69
MT49 47 1/8 X 29 3/16 X 78 3/8 2 8.3 5-15P R-290 /95 / 3.21
MT49-SD 47 1/8 X 29 1/4 X 78 3/8 2 8.3 5-15P R-290 /85 / 2.87
MT53 54 1/4 X 29 1/8 X 78 3/8 2 8.7 5-15P R-290 /95 / 3.21
MT53-SD 54 1/4 X 28 9/16 X 78 3/8 2 8.7 5-15P R-290 /95 / 3.21
MT72 78 3/4 X 33 5/8 X 79 3 13.6 5-15P R-290 / 160 / 5.41
FREEZER MODELS
MTF23 30 1/8 X 30 7/8 X 78 3/4 1 7.0 5-15P R-290 /144.6 / 4.9
MTF53* (2 systems) 54 3/10 X 31 3/10 X 78 9/10 2 11.2 5-15P R-290 /110.6 / 3.75 x 2
Height includes casters.
PRODUCT INFORMATION
• All refrigerator models will maintain product temperature between 32 and 44 degrees °F.
• Freezers will maintain product temperatures of 0 to -10°F, the temperature for the freezer models cannot be adjusted.
• 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 MT Refrigerators and Freezers Beverage-Air
Rev. 10/22Beverage-Air6
User Manual for TMR Refrigerators Beverage-Air
Rev. 12/21Beverage-Air24
GENERAL PARTS
CLEARANCE AND PLACEMENT
Placement
Consider the following when selecting a location for your unit:
Clearance:
• 4.0 in. at the top
• 4.0 in. at the rear
• 4.0 in. at the left side
• 4.0 in. at the right side
Note: Louver and Door must fully protrude from side walls
Floor Load: The oor on which the unit 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.
B
C
D
87653
4
B
C
D
87653
4
4"
TOP
MINIMUM
CLEARANCE
REQUIRED
4"
LEFT/RIGHT
MINIMUM
CLEARANCE
REQUIRED
4"
REAR
MINIMUM
CLEARANCE
REQUIRED

User Manual for MT Refrigerators and Freezers Beverage-Air
Rev. 10/22 Beverage-Air 7
UNPACKING AND SET UP
IMPORTANT: It is not recommended to use a box cutter or razor knife when uncrating product. The use of these
items could damage components and or scratch equipment surface. If necessary, only use these items to make cuts
where indicated on crating, and/or on the back of the product while considering all precautions about using sharp
tools.
Leveling
Proper leveling is critical for
eective drain ow and door
operation. The cooler must be
leveled from side to side and
should be tilted backwards. The
front leveling legs should be at
least 3/8" higher than the rear
ones.
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User Manual for MT Refrigerators and Freezers Beverage-Air
Rev. 10/22Beverage-Air8
Operating Steps:
• Once equipment is in place, let stand for at least 12 hours to allow compressor oil to fully settle.
• Plug the unit into electrical outlet, following all previous instructions and electrical specications.
• Avoid operating equipment with wet hands, or in standing water to avoid electrical hazard.
Product Storage:
• Install shelves using metallic clips (make sure they are aligned at the same height).
• If the cooler has been turned o and it is necessary to turn it back on, wait at least one hour to cool the interior before
reloading product.
• When the cooler is lled up, arrange and order product inside. Do not throw or drop product into the cabinet as it may
damage the interior or shelving.
Air ow inside the cabinet is very important. Please make sure that:
• Product weight does not exert pressure on internal walls and product does not extend beyond perimeter of shelves.
• Avoid introducing products in closed boxes/cartons, trays, and/or bags sealed in plastic as it may aect actual product
temperature.
• Keep products away from fan blades. Do not obstruct fan air inlets.
• Make sure there is at least 1" between product and shelf to allow proper air ow inside the cooler. Do not place
product all the way back against the wall. The cooler comes with a wall separator to ensure that there is at least 1"
clearance. DO NOT REMOVE.
IMPORTANT: Some models are designed to cool products at
temperatures below 32°F. Do not use this type of cooler for other
products that may be quality aected due to these kinds of
temperatures. Some products freeze when subjected to these
temperatures and the containers may explode. If product containers
are made of glass, they may cause lesions and serious wounds to
you; thus, always follow recommendations and instructions from
your supplier. Do not introduce unauthorized containers or product
or ask the Service Center for further details.
We recommend that you restock equipment at the end of the day
so product has a chance to cool to correct temperature by the next
business day; doing so, will also contribute to energy savings.
Always keep doors closed overnight to maintain proper temperature
and ecencies.
OPERATING EQUIPMENT
1
Angel Puente
From: Guadarrama Polo Carlos <[email protected]>
Sent: Sunday, February 20, 2022 9:37 AM
To: Angel Puente
Subject: RE: MT Manual
Attachments: 2096649MECR01.pdf
HiAngelgoodmorning

AswespokelastFriday,weagreedtomakequickchangesintheinformationyouhave.

 BevAirUsermanualpt1:

1. Page1;Usermanual#3057689
2. Page4;theinformationshownisok.
3. Page5;MT21Dim=391/8”istherightwidth.Inthefollowingchartaretherefrigerantcharge.Besidesallthe
unitstemperaturerangearefrom0°Cto7°C

MT23‐1BREFRIGERANTER‐290(PROPANO)0.055KG
MT53‐1BREFRIGERANTER‐290(PROPANO)0.095KG
MT49‐1SDBREFRIGERANTER‐290(PROPANO)0.085KG
MT49‐1BREFRIGERANTER‐290(PROPANO)0.095KG
MT53‐1SDWREFRIGERANTER‐290(PROPANO)0.095KG
MT12‐1WREFRIGERANTER‐290(PROPANO)0.055KG
MT10‐1WREFRIGERANTER‐290(PROPANO)0.047KG
MT08‐1H6BREFRIGERANTER‐600A(ISOBUTANO)0.045KG
MT34‐1WREFRIGERANTER‐290(PROPANO)0.06KG
MT21‐1BREFRIGERANTER‐290(PROPANO)0.065KG

4. Removeinformationinpage6andkeeppage9.
5. Page7;UnpackingandsetupIwouldremovetheword“skid”anduse“pallet”,withthatandproperimageswill
befine.
6. Page12to16isforTMRunitsandasIexplainedtoyouthisunitsareproducedatFERSA(ReachIns)andIdon’t
havetheinformation.IfyouaretalkingaboutMTunitsmeansthatyoumayusetheinformationoftheuser
manual,(troubleshooting)andthefollowinginformationifisusefulforyouchangingImberaUSAforyour
properTechnicalServicenameplease.



7. Pages18and19areok
8. WiringdiagramofMT53hingedoorisattached

 BevAirUsermanualpt2:
MODEL NUMBER MAXIMUM LOAD FOR
HORIZONTAL GRILL (lbs)
MT08 58.64
MT10 112.65
MT12 98.54
MT21 85.98
MT23 147.71
MT34 98.54
MT49 121.48
MT49-SD 115.08
MT53 131.39
MT53-SD 147.71
The ETC1H control in some models is also pre-congured by the manufacturer to maintain
product temperature. It does not include a display that shows temperature or alarms. If you
notice malfunctioning, please notify the Beverage-Air Technical Services Department.
Temperature level
adjustment knob

User Manual for MT Refrigerators and Freezers Beverage-Air
Rev. 10/22 Beverage-Air 9
• Do not place objects or appliances on top of this equipment. The cabinet is constructed of laminate and polyethylene
foam that may bend or deform when hit or stressed.
• For proper operation, equipment must have a minimum distance of 4" (10 cm) from walls and other structures on the
top, the back, and both sides.
• Avoid installing this cooler in direct sunlight.
• Do not install this cooler outdoors.
• This cooler must not be used or stored where ambient temperature is under 14°F or greater than 140°F or where
relative humidity is greater than 75%.
• Never install equipment close to heat sources to avoid excessive energy consumption or equipment malfunction.
• Do not introduce products into the equipment that are warmer than the ambient temerature. Do not install close to
heat sources, otherwise, this may cause an ineecient cooler operation and will increase energy consumption.
• Do not place items in front of grille. This could obstruct air ow causing the product to operate ineciently and
increase energy consumption.
• Do not place objects or appliances on top of this equipment. The cabinet is constructed of laminate and polyethylene
foam that may end or deform when hit or stressed.
• For proper operation, equipment must have a minimum distance of 4" (10 cm) from walls and other structures in the
back and on both sides.

User Manual for MT Refrigerators and Freezers Beverage-Air
Rev. 10/22Beverage-Air10
1. Determine the proper location for the shelf clips.
The reference numbers on the pilaster can serve as a
guide to ensure all clips are properly located.
2. Insert the top tab of the shelf clip into the desired
hole of the pilaster. The retaining tab MUST be facing
up as shown.
3. Rotate the clip downwards and insert the bottom tab
into the matching hole in the pilaster. The clip may
need to be squeezed slightly during installation.
4. Install all remaining clips.
5. Install shelves onto clips with the product retention
bar facing up. Be careful not to dislodge clips during
installation.
6. Place shelves so that the retaining tab on the clip
captures the shelf as shown.
7. Conrm that the shelf is resting on ALL 4 clips and
that the clips are securely attached to the pilasters.
8. Improper shelf clip installation could cause the shelf
and / or the product on it to fall, resulting in damage
to the unit and possible bodily injury.
9. Do NOT overload the shelves. The unit is designed to
use all shelves that are supplied in an equally spaced
manner. Contact Beverage-Air customer service if
fewer shelves or a dierent conguration to ensure
shelf overloading will not occur.
SHELF INSTALLATION

User Manual for MT Refrigerators and Freezers Beverage-Air
Rev. 10/22 Beverage-Air 11
This is a cord-connected unit, and must be connected to it's own dedicated power supply. Beverage Air coolers with HC
refrigerants (R-290/R-600) are designed to operate at specic voltages. Prior to installation, check equipment serial
number and 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.
IMPORTANT: ground connection is a protection system for equipment connected to an electrical network.
It is used in electrical installations to avoid current pass-through to use, due to an isolation failure of active
conductors. This cooler must be connected to a physical ground. In case a short circuit occurs, ground
connection reduces the risk of electrical shock.
Power Cord
This 115 volt model is equipped with a polarized power cord
with a grounded 5-15P connection plug. Do not attempt
to eliminate the ground connection or use two-terminal
adapters. Plug must be connected to an adequately-
installed and grounded outlet. If the owner does not
have this type of outlet, it is their responsibility to have
one installed. Please contact a ceried electrician or a
certied technician if you have questions.
If the power cord becomes damaged, it must be replaced
with the identical cord. Using extension cords will void
the warranty.
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.
Connect the plug rmly into the electrical outlet making
sure it is inserted properly.
The cabinet will soon begin to blow warm air out of the
top area, and cool air will ow from the inside blower.
The cabinet temperature has been set at the factory and
should not need adjustment, however if it was changed,
the standard setting for refrigerators is 36.3º F for single
door equipment and 35.4°F for two door equipment.
The freezers will be set to 0°F at the factory, but the
temperature for the freezers cannot be adjusted and must
remain at 0°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.
In order to avoid severe electrical shock, do not remove
the third ground connection pin from power cord or use
an adapter.
If the power cord or other electronic components are
damaged, contact the manufacturer or authorized service
technician for repair to avoid injury or electrical shock.
ELECTRICAL

User Manual for MT Refrigerators and Freezers Beverage-Air
Rev. 10/22Beverage-Air12
CLEANING AND MAINTENANCE
Cleaning Schedule:
Cabinet
Daily wipe down
Weekly interior
Condenser coil
Monthly cleaning
or as required
Gaskets
Daily inspection, check
that hinges are tight to
the cabinet.
Routine maintenance
Annually
IMPORTANT:
Disconnect the cooler from wall outlet before you perform any maintenance or cleaning.
Always perform cleaning and maintenance tasks in a safe manner.
Do not clean equipment with a water hose or jet wash as it may cause damage to electrical components and
cause electric shock. Do not use sharp objects during cleaning to remove excess dirt, use a brush if required. Do
not use any solvents or abrasive products for cleaning tasks, this may damage surface nishing.
Daily Exterior Cleaning
It is much easier to clean on a regular basis than to have to remove stains once they have built up. Regular cleaning helps
avoid deterioration and impedes malfunctioning which may alter product preservation.
1. Wash with a soft cloth, warm water, 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.
6. Use a broom or dry mop to clean the area under the
equipment. Avoid splashing water directly onto the
front, or underneath the cooler.
Weekly Interior Cleaning
1. Remove all food, food related items, and shelves.
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. Clean all interior surfaces and door gaskets with
a soft cloth, warm water, and mild soap. The door
gasket must be cleaned regularly in order to ensure a
proper seal.
5. Rinse with clean water and allow to air dry.
6. Return the shelves to the unit and secure them.
7. Restore power.
8. Return food to the unit when it has reached a safe
temperature.

User Manual for MT Refrigerators and Freezers Beverage-Air
Rev. 10/22 Beverage-Air 13
Condenser Cleaning
The condenser must be cleaned once a month, or when required to avoid dirt from reducing cooling system eciency.
To clean the condenser, the front grille will need to be removed as shown in the illustration below.
Remove dust, lint, and debris with a soft bristle brush or broom.
In kitchens and/or cooking areas where grease may accumulate, the condenser may need to be cleaned with water and
degreasing agent.
IMPORTANT: Do not use solvent or abrasive products for cleaning as they may damage the surface.
Do not use sharp pointed objects to remove grease, use a brush if required.
Evaporator Defrost
This product is equipped with an automatic evaporator defrost system to guarantee adequate interior air ow.
If you notice ice forming and/or equipment is not cooling properly, contact the Beverage Air Technical Service Center for
assistance.
Plastic Evaporator Housing
1. Unscrew the drain nut
2. Remove the drain hose
3. Remove (A) screws from the evaporator housing
4. Remove the plastic evaporator housing
Tube Cover
1. Remove the grilles
2. Unscrew the xing points of the tube cover
3. Remove the screws from the tube cover
4. Remove the tube cover

User Manual for MT Refrigerators and Freezers Beverage-Air
Rev. 10/22Beverage-Air14
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 MT Refrigerators and Freezers Beverage-Air
Rev. 10/22 Beverage-Air 15
HELP
Malfunction Possible Cause LikLikely 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 runs constantly Dirty condenser. Clean the condenser
Internal temperature too high Dirty condenser.
Evaporator iced over, or unit in high
temperature environment.
Clean condenser, Defrost evaporator,
Reduce ambient temperature around
equipment
Internal temperature too low,
freezing product
Temperature control. Adjust or replace control
Not cooling - compressor not on Temperature control stuck in open
position.
Replace temperature control
Not cooling - compressor hums but
does not start
Low voltage to unit.
Compressor starting system failure.
Check voltage, and correct as needed,
Check start relay and start capacitor,
See next step
Not cooling - compressor starts but
doesn't stay on
Compressor start relay failure.
Compressor start capacitor failure.
Replace relay or capacitor
Not cooling - compressor cycles on Overheating or 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
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 MT Refrigerators and Freezers Beverage-Air
Rev. 10/22Beverage-Air16
Refrigeration service should only be attempted by a trained trade professional certied to work on R-290 or R-600
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 R-290 and R-600 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 this refrigerant can be vented into the
air during service, the venting MUST be in an area
free from ame or spark. It must be near an opened
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:
Recovery: If opening the system, all remaining refrigerant
must be recovered.
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.
Selected System Components and Denitions:
System - Hermetically sealed system that includes
compressor, nned condenser, nned evaporator, and
capillary tube metering device.
Compressor - Vapor pump that moves the refrigerant.
Condenser - Finned tubes that contain hot refrigerant gas,
condenser fan moves air over it to discharge heat. Air
contains dust and other contaminants, causing eventual
need for cleaning.
Fan Motor - Related and used with the condenser, the fan
motor rotates the fan, moving air across the condenser.
Air ow is out the back of unit. The fan motor will be
operating in conjunction with the compressor, unless the
compressor has overheated, in which case the fan motor
will be on when the compressor is not operating.
Evaporator - Finned tubes that contain low pressure
refrigerant, evaporator fan (when used) moves cabinet air
over it to extract heat.
FOR THE SERVICE TECH R-290 AND R-600

User Manual for MT Refrigerators and Freezers Beverage-Air
Rev. 10/22 Beverage-Air 17
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User Manual for MT Refrigerators and Freezers Beverage-Air
Rev. 10/22Beverage-Air18
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User Manual for MT Refrigerators and Freezers Beverage-Air
Rev. 10/22 Beverage-Air 19
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User Manual for MT Refrigerators and Freezers Beverage-Air
Rev. 10/22Beverage-Air20
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