Maxx Cold MXMC34HC User manual

MXMC49HC
MXMC58HC
MILK COOLERS
Service, Installation and Care Manual
IMPORTANT INFORMATION
PLEASE READ CARFEULLY
MXMC34HC

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CONTENTS
SERIAL NUMBER INFORMATION……...………………..……………………………………………………….3
RECEIVING AND INSPECTING THE EQUIPMENT……………………………………….…………………..3
COMMERICAL REFRIGERATION SAFETY & WARNINGS …………..…………….…………………….…4
SPECIFICATIONS…………………………………………………….……………………….………6
CONGRATULATIONS ON YOUR NEW COOLER…………………………………….………6
INSTALLATION………………………………………………………………………….…………..6-7
ELECTRICAL CONNECTION……………………………………………………………………….....….7
FOOD STORAGE.………………………………………………….………………………………………7
OPERATING INSTRUCTIONS……………………………………………………………………..…………7-9
MAINTENANCE…………………..……............…………………………… ………….……………….9-10
TROUBLESHOOTING……………………………………………………………………………………….11
DISPOSAL……………………………………………………………………………………………………12
SPECIAL POINTS TO NOTE………………………………………………………………………………12
EXPLODED VIEW AND PARTS LISTING………………………………………………………………..…13
WIRING/CIRCUIT DIAGRAM……………………………………………………………………………14
READ THIS MANUAL COMPLETELY BEFORE ATTEMPTING TO INSTALL OR
OPERATE THIS EQUIPMENT. SAVE THESE INSTRUCTIONS!
NOTIFY CARRIER OF DAMAGE! INSPECT ALL COMPONENTS IMMEDIATELY.

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SERIAL NUMBER INFORMATION
The serial number of the milk cooler is located inside the unit on the left-hand side near the top on the wall.
Always have the serial number of your unit available when calling for parts or service. Also, retain proof of
purchase including the order date or your warranty will be voided.
This manual covers standard units only. If you have a custom unit, consult the customer service department
at the number listed in the back cover.
RECEIVING AND INSPECTING THE EQUIPMENT
Even though most equipment is shipped crated, care should be taken during unloading so the equipment is
not damaged while being moved into the building.
1. Visually inspect the exterior of the package and skid or container. Any damage should be noted and
reported to the delivering carrier immediately.
2. If damaged, open and inspect the contents with the carrier.
3. In the event that the exterior is not damaged, yet upon opening, there is concealed damage to the
equipment notify the carrier. Notification should be made verbally as well as in written form.
4. Request an inspection by the shipping company of the damaged equipment. This should be done
within 10 days from receipt of the equipment.
5. Be certain to check the compressor compartment housing and visually inspect the refrigeration
package. Be sure lines are secure and base is still intact.
6. Freight carriers can supply the necessary damage forms upon request.
7. Retain all crating material until an inspection has been made or waived.
8. Advise our customer technical support department of any filed damage claims with the carrier.

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COMMERCIAL REFRIGERATION SAFETY
Your safety and the safety of others are very important.
We will provide important safety messages in this manual and on your appliance.
Always read and obey all safety messages.
Our product instructions will be uploaded on our company website.
This is the Safety Alert Symbol. This symbol alerts you to potential hazards that can
kill or injury you and others. All safety messages will follow the Safety Alert Symbol
and either the words” DANGER”, “WARNING” or “CAUTION”.
Danger means that failure to heed this safety
statement may result in severe personal injury or
death.
Warning means that failure to heed this safety
statement may result in extensive product
damage, serious personal injury, or death.
Caution means that failure to heed this safety
statement may result in minor or moderate
personal injury, or property or equipment damage.
All safety messages will alert you to what the potential hazard is, tell you how to reduce the chance of injury,
and let you know what can happen if the instructions are not followed.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly
qualified persons in order to avoid a hazard.
This appliance is not intended for use by persons (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with this appliance.
This appliance can be used by children aged from 8 years and above and persons with reduced physical
sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or
instruction concerning use of the appliance in a safe way and understand the hazards involved. Children
shall not play with the appliance. Cleaning and user maintenance shall not be made by children without
supervision.
Keep the appliance and electrical its cord out of reach of children less than 8 years old.
Do not store explosive substances such as aerosol cans with a flammable propellant in this appliance.

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WARNING
The appliance uses flammable insulation blowing gas C5H10, disposal of the appliance must be in
accordance with the regulations of local authorities regarding flammable items.
CAUTION – Risk of Fire or Explosion due to Flammable Refrigerant Used.
Follow Handling Instructions Carefully in Compliance with U.S. Government Regulations.
WARNING: Do not use mechanical devices or other means to accelerate the defrosting process, just empty
contents and let it defrost itself with the access lid open, use a dry soft towel to dry the inner surfaces before
returning the unit to operating conditions. Do not reload contents until the interior is at the desired
temperature.
WARNING: Do not damage the refrigerant circuit.
Operating, moving, and use of the milk coolers must avoid either damaging the refrigerant tubing, or
increasing the risk of a leak by impacting other objects or attempting to drill into the unit.
CAUTION – Risk Of Fire Or Explosion Due To Puncture Of Refrigerant Tubing; Follow Handling Instructions
Carefully. Flammable Refrigerant Used
Component spare parts shall be replaced with like components parts and servicing shall be done by
authorized service personnel, as to minimize the risk of ignition due to incorrect parts or improper operation.
DANGER: Risk of child entrapment. Before you throw away your old milk cooler:
Take off the door and discard it separately from the appliance body.

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SPECIFICATIONS
MODEL#
V/Hz/Ph
STORAGE
CAPACITY
Cu-ft
CAPACITY
(13”x13”x11”
Crates)
CAPACITY
(19”x13”x11”
Crates)
AMP
DRAW
HP
CHARGE
OZ
REFRIGERANT
NEMA
PLUG
MXMC34HC
115/60/1
13.2
8
4
4
1/4
3.17
R290A
5-15P
MXMC49HC
115/60/1
19.6
12
8
7.5
1/4
3.17
R290A
5-15P
MXMC58HC
115/60/1
23.5
16
10
7.5
1/3
3.17
R290A
5-15P
CONGRATULATIONS ON YOUR NEW COOLER
Note these instructions apply to all milk coolers. Installation of equipment may not exactly correspond to
your model.
INSTALLATION
1. AIR CIRCULATION
-The cooler should be placed in a warm, dry room, with suitable ventilation. Please make sure to avoid any
partition or objects that may stop the air flow. Please make sure there is enough space for air circulation to
the rear of the unit. Recommended space between the rear of the unit to the wall is at least 5 inches.
2. FOUNDATION
- Please make sure that the floor where the unit will be placed can support the total weight plus any other
contents that it may hold.
3. DO NOT PLACE NEAR HEAT
- Please make sure to avoid hot corners and locations near stoves.
- High ambient temperature will significantly reduce cooling efficiency.
4. INDOOR USAGE ONLY
- This unit is designed and tested for indoor use only. Never place the cooler in strong sunlight.
- Outdoor usage will void its warranty.
5. LEVELING
- Please make sure that the unit is level from the front to the back and side to side before placing it in service
6. STABILITY
-The cooler should always be placed on a stable surface with all casters level and the brakes set when in
use or it’s being stored in an accessible location

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ELECTRICAL CONNECTION
The cooler must be connected to a NEMA 5-15 or 5-20 receptacle with the correct voltage/frequency, as
show on the nameplate. The standard for U.S is 115V/60Hz. Voltage variations of ±10% are acceptable.
Greater variations can damage the cooler, and in such cases the factory warranty is not valid. In the case of
extreme voltage variation, above or below the standard, your local supplier or utility company will be able to
advise you, what to do.
All wiring between the electrical panel and the unit must be done in accordance with the National Electric
Code and all state and local codes.
FOOD STORAGE
The cooler is only designed as a serving vehicle and is not suited to store cold food for extended periods of
time. In other words, only milk containers must be placed in the cooler. The cooler must not be filled beyond
the height limit of the included contents fill level line, or in cases where there is no such line, to within
100mm below the lid. This is to ensure the product temperature remains less than 40°F.
OPERATING INSTRUCTIONS
The temperature in the cooler is automatically regulated by a set thermostat.
The position of the cooler, the ambient temperature, the number of times the lid is opened and for how long
the lid is opened are all factors affect the temperature in the cooler. To assur e pr op er t em perat ur e regulation
do not place in the appliance in sunlight or near / adjacent to a heat-radiating surface.
If your cooler is fitted with a lock, the key should be kept out of the reach of children. If your new cooler is to
replace an older one, which is not in use any more, you should remove the lock mechanism on the old one,
before disposing it.
Do not throw items into the storage area. Failure to heed these recommendations could result in damage to
the
interior of the cabinet.
The factory setting for the temperature range is 34°F to 38° F which keeps your milk at a safe,
cold temperature.
CAUTION

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SOLID STATE THERMOSTAT DESCRIPTIONS
1. FRONT PANEL COMMANDS
To dis pl ay t arge t set po int; i n pr ogra mm in g mo de i t sele ct s a pa rame te r or c on fi rms an ope ra tion .
To sta rt a m anua l defr os t
To vie w th e la te st ala rm occ ur renc e; i n pr og ra mm ing mo de i t br ow se s the parameter
codes or increases the display value
To vie w th e la te st ala rm occ ur renc e; i n pr og ra mm ing mo de i t br ow se s th e pa ra mete r
codes or decreases the display value
KEY COMBINATION
To l oc k & un lo ck t he k ey bo ar d
To ent er i n prog ra mming mode
To r et ur n to the r oom te mper at ure di sp la y
1.1 Function of LEDS
2. MAIN FUNCTIONS
2.1 HOW TO SEE THE SETPOINT
1. Push and immediately release the SET key: the display will show the set point value.
2. Push and immediately release the SET key or wait for 5 seconds to display the sensor value again.
2.2 HOW TO CHANGE THE SETPOINT
1. Hold the SET key for more than 2 seconds to change the set point value.
2. The value of the set point will be displayed and the LED starts blinking.
3. To change the set value push the or key within 10s.
4. To set a new point value, push the SET key again or wait 10s.
2.3 HOW TO START A MANUAL DEFFROST
1. Hold the key for more than 2 seconds and the manual defrost will start
2.4 HOW TO LOCK THE KEYBOARD
1. Hold the and keys for more than 3s.
2. The “POF” message will be displayed and the keyboard will be locked. At this point, it will be possible only
to see the set point or the MAX or Min temperature stored.
3. If a key is pressed more than 3s the “POF” message will be displayed.
2.5 HOW TO UNLOCK THE KEYBOARD

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DANGER
Hold the and keys together for more than 3s, till the “POF” message is displayed.
3. ALARM SIGNALS
HOW TO SEE THE ALARM AND
RESET THE RECORDED ALARM
1. Hold the or key to
display the alarm signals.
2. When the signal is displayed, hold
the SET key until the “rst” message
is displayed, and push the SET key
again. The “rst” message starts
blinking and the normal temperature
will be displayed
MAINTENANCE
The power switch must be turned to OFF and the unit disconnected from the
power source whenever performing service, maintenance functions or
cleaning the refrigerated area.
1. CLEANING
1.1 CLEANING STAINLESS STEEL INTERIOR AND EXTERIOR
Damage to stainless steel finish due to improper use of cleaning products or
non-recommended products is NOT covered under this product's warranty.
• Do
- Use warm, soapy water and a soft, clean cloth or sponge
- Rinse surfaces with clean, warm water and dry immediately to avoid water spots
• DO NOT USE
- Abrasive or harsh cleaners
- Ammonia
- Chlorine bleach
- Concentrated detergents or solvents
- Metal or plastic-textured scouring pads
- Vinegar-based products
- Citrus-based cleaners
- Detergents that contain chlorine
Note: It suggested that the unit be emptied daily after all peak demand periods have passed, and
any remaining contents be placed in a storage refrigerator. The unit should be unplugged and
opened to allow it to defrost naturally. Let the unit air dry after cleaning and plug the unit in to
rebuild it frost layer at least 3 hours to loading with product.
1.2 CLEANING THE CONDENSER FINS
-To maintain proper refrigeration performance, the condenser coil must be free of dust, dirt
and grease
-This will require periodic cleaning. Condenser fins should be cleaned at least every month or as

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DANGER
needed
Never use a high-pressure water wash for this cleaning procedure as water can
damage the electrical components located near or at the condenser coil.
MAINTENANCE
1.3 CLEAN THE GASKET
- The door gasket should be cleaned frequently to maintain proper sealing
1.4 CHECK AFTER CLEANING
- Check the unit again for safety
- Check that the unit is operating properly
2. The lid may be cleaned in the same way as the cooler.
3. If a condenser and associated fan are fitted at the back bottom of the cooler, they can gather dust and dirt.
If cleaning is necessary, they should be vacuumed with a soft brush.
4. Please note that the parts behind the protective grill can be hot and rotating.
5. POWER CORD
5.1
- Please make sure that the power cord is connected to the proper voltage
The power cord must be connected to a protected circuit with the correct voltage
and amperage
- Turn ʻoffʼ the power switch before disconnecting the power cord, whenever
performing maintenance functions or cleaning the refrigerated cabinet
- Compressor warranties are void if compressor burns out due to improper voltage
5.2. RE-STARTING
- If disconnected, wait for 5 minutes before re-starting

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TROUBLE SHOOTING
SYMPTOMS
CAUSES
SOLUTIONS
The unit is freezing
The temperature is set too low to
maintain safe, read to serve product.
Turn the temperature dial to a
warmer setting – allow 2 hours for unit
to reach steady state condition and
confirm product temperature is within
the 34° to 40°F ideal holding range.
The unit does not
refrigerate at all
There is a power connection
failure problem.
Check the power cord to make sure the
unit is plugged in it correctly.
The unit does not
refrigerate properly
The unit is in sunlight or near a
heating device.
The unit contains hot or too
much product.
The unit door is opened too
frequently or left open to long.
The condenser is clogged.
Check the installation place
Move away from sunlight or away
from heater.
Check the condition of the product
when the cooler was loaded.
Check the temperature control setting.
There is a loud noise
The floor is too weak or the
leveling feet are set incorrectly.
The back-side of the unit is too
close to the wall.
The tray is not in the correct
position.
Check the installation and
adjust the tray position.
There is condensation
on the exterior of the unit
High-moisture air can produce
condensation on an external surface.
Wipe with a dry cloth.
Ice is covering the interior
walls and the unit is to warm
Ice is an insulator; the unit has built up
ice and needs to be defrosted.
Empty unit and put the milk cartons in a
refrigerator and unplug unit so it can
completely defrost with the lid / cover
open.
The interior walls are not
frosted
Unit has not been on long enough are
refrigeration system needs attention
Wait 2 hours for frost to develop, if it
doesn’t call for service.
Door doesn’t close tightly
The door is bent.
The unit has a leveling issue.
The door gasket has come out.
Level the unit again.
Reposition the gasket.
If the cooler is in a place that is very hot or with bad ventilation, make sure to provide adequate ventilation. If
the condenser mentioned in Section Maintenance is not clean, make sure to vacuum it.
If the above points have been checked and the cooler is still not working, please call service personnel.
Inform them the nature of the problem, the type of cooler, serial number and item number (provided on the
nameplate at the back of the cabinet).

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DISPOSAL
When a worn-out cooler is to be disposed of, this must be done properly. Please be aware of any regulations
covering the disposal of such items; there may be special local or state requirements or conditions to be
followed.
Information about disposal may be obtained from:
—The firm you purchased the cooler from;
—The relevant authorities (the Local Authority, environmental agencies, etc.).
—Your local disposal ,dumpster or local trash company.
SPECIAL POINTS TO NOTE
The information contained in these instructions for use, was correct at the term of printing. On account of our
constant produce development, however, we reserve the right to make changes in the cooler described here.
Naturally, we will attempt to keep instructions for use up to date.
If you are in doubt as to the correct use of the cooler, please contact your supplier, who will be able to advise
you.
The manufacture / distributor is not responsible for accident or problems, occurred as a result of wrong
connection or improper use of the cooler.
There are no warranty covered liquated damages associated with this appliance, If it is used improperly or in
violation of the operational instructions and practices contained in this manual, the warranty coverage is
voided.

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EXPLODED VIEW AND PARTS LISTING
MODEL： MXMC34HC / MXMC49HC / MXMC58HC
Number
Description
Number
Description
1
TOP LID
18
CONDENSER
2
TOP SEAL
19
UNIT BOARD
3
LOCK
20
BRAKE WHEEL
4
DOOR HINGE
21
NORMAL WHEEL
5
DOOR SEAL
22
THERMOSTAT
6
LOCATION KNOB
23
THERMOSTAT BOX
7
HOOK PLATE
24
THERMOSTAT BOX COVER
8
LOCK HOOK
25
SEAL
9
FRONT DOOR
26
SENSOR FIXED CLIP
10
SUCTION PIPE + CAPILLARY
27
PROBE PADDING
11
COMPRESSOR
28
LOCATION AXIS
12
CODENSER FAN
29
ROTATING AIXS
13
BASKET GUARD GRILLS
30
HINGE PLATE
14
FILTER DRIER
31
BODY
15
DRIER SUPPORT
32
HOOK
16
CONNECTION PLATE
33
UNIT ROOM COVER
17
BLADE
34
FLOOR PROTECTER SHELF

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WIRING DIAGRAM
MODEL： MXMC34HC / MXMC49HC / MXMC58HC

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NOTES:
11

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3355 Enterprise Ave., Suite 160 - Ft. Lauderdale, FL 33331
T: [phone] - F: [phone]
www.maxximumfoodservice.com