Avantco 178MC34HC User manual

User Manual
www.AvantcoRefrigeration.com
02/2023
#178MC34HC 34" Commercial School Milk Cooler
#178MC49HC 49" Commercial School Milk Cooler
#178MC58HC 58" Commercial School Milk Cooler
Models:
School Milk Cooler
178MC34HC
Please read the manual thoroughly prior to equipment set-up, operation, and maintenance.
Note:

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User Manual
www.AvantcoRefrigeration.com
Commercial School Milk Coolers
Table of Contents
Safety................................................................................................................................................ 3
Cabinet Location Guidelines...................................................................................................... 4
Inspection........................................................................................................................................ 5
Installation ....................................................................................................................................... 5
Safety Warnings............................................................................................................................. 6
Operation / Maintenace............................................................................................................... 7
Troubleshooting............................................................................................................................. 9

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User Manual
www.AvantcoRefrigeration.com
Commercial School Milk Coolers
Warning
DANGER – RISK OF FIRE OR EXPLOSION. FLAMMABLE REFRIGERANT USED. TO BE
REPAIRED ONLY BY TRAINED SERVICE PERSONNEL. DO NOT PUNCTURE REFRIGERANT TUBING.
PELIGRO – RIESGO DE INCENDIO O EXPLOSION. REFRIGERANTE INFLAMABLE UTILIZADO. PARASER
REPARADO SOLAMENTE POR PERSONAL DE SERVICIO CALIFICADO. NO PINCHAR LA TUBERÍA
REFRIGERANTE.
DANGER – RISQUE DE FEU OU D’EXPLOSION. LE FRIGORIGÈNE EST INFLAMMABLE. CONFIER LES
RÉPARATIONS À UN TECHNICIEN SPÉCIALISÉ. NE PAS PERFORER LA TUBULURE CONTENANT LE
FRIGORIGENE.
CAUTION – RISK OF FIRE OR EXPLOSION. FLAMMABLE REFRIGERANT USED. CONSULT REPAIR MANUAL/
OWNER’S GUIDE BEFORE ATTEMPTING TO SERVICE THIS PRODUCT. ALL SAFETY PRECAUTIONS MUST BE
FOLLOWED.
ATENCION – RIESGO DE INCENDIO O EXPLOSIÓN. REFRIGERANTE INFLAMABLE
UTILIZADO. CONSULTE EL MANUAL DE REPARACIÓN / GUÍA DEL PROPIETARIO ANTES DE INTENTAR DAR
SERVICIO A ESTE PRODUCTO. DEBEN CUMPLIR CON TODAS LAS PRECAUCIONES DE SEGURIDAD.
ATTENTION – RISQUE DE FEU OU D’EXPLOSION. LE FRIGORIGÈNE EST INFLAMMABLE. CONSULTER LE
MANUEL DU PROPRIÉTAIRE/GUIDE DE RÉPARATION AVANT DE TENTER UNE RÉPARATION. TOUTES LE
MESURES DE SÉCURITÉ DOIVENT ÊTRE RESPECTÉES.
CAUTION – RISK OF FIRE OR EXPLOSION DUE TO PUNCTURE OF REFRIGERANT TUBING; FOLLOW
HANDLING INSTRUCTIONS CAREFULLY. FLAMMABLE REFRIGERANT USED.
ATENCION – RIESGO DE INCENDIO O EXPLOSIÓN DEBIDO A LA PERFORACION DE LA TUBERÍA
REFRIGERANTE; SIGA LAS INSTRUCCIONES DE MANIPULACIÓN CON CUIDADO. REFRIGERANTE
INFLAMABLE UTILIZADO.
ATTENTION – RISQUE DE FEU OU D’EXPLOSION SI LA TUBULURE CONTENTANT LE FRIGORIGÈNE EST
PERFORÉE; SUIVRE LES INSTRUCTIONS DE MANUTENTION AVEC SOIN. LE FRIGORIGÈNE EST
INFLAMMABLE.
CAUTION – RISK OF FIRE OR EXPLOSION DUE TO FLAMMABLE REFRIGERANT USED.
FOLLOW HANDLING INSTRUCTIONS CAREFULLY IN COMPLIANCE WITH LOCAL GOVERNMENT
REGULATIONS.
ATENCION – RIESGO DE INCENDIO O EXPLOSIÓN DEBIDO A REFRIGERANTE INFLAMABLE UTILIZADO.
SIGA LAS INSTRUCCIONES DE MANIPULACIÓN CON CUIDADO CONFORME A LAS REGLAS DE LAMU-
NICIPALIDAD.
ATTENTION – RISQUE DE FEU OU D’EXPLOSION SI LE FRIGORIGÈNE EST INFLAMMABLE. SUIVRE LES
INSTRUCTIONS DE MANUTENTION AVEC SOIN CONFORMÉMENT AUX RÈGLEMENTATION
GOUVERNEMENTALE LOCAUX.
Safety

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User Manual
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Commercial School Milk Coolers
This unit is intended for use in a temperature-controlled environment less than 75 degrees
Fahrenheit and 60% relative humidity. Malfunction due to improper conditions is not covered
under warranty.
IMPORTANT – Please Read Before Installation:
• If the unit has recently been transported on its side, please let the unit stand upright for a minimum
of 24 hours before plugging it in.
• Make sure that the unit has reached the desired temperature before loading the unit with products.
This unit is meant for keeping cold products cold, not chilling warm products.
• Make sure that there is proper ventilation around the unit in the area where it will operate.
• Make sure all accessories are installed (i.e., shelves, shelf clips, casters) before plugging the unit in.
• Do not attempt to remove or repair any component of the unit. Consult an authorized service
technician for servicing/repair.
• Do not sit/stand inside the unit.
• Please read through the manual in its entirety.
• This unit is designed to perform in a temperature-controlled environment at 60% relative humidity.
The unit should be located away from doors, air ducts, and fans that could disrupt airflow and
negatively impact performance.
• Install the unit on strong and leveled surfaces.
- If the surface is uneven, the unit may be noisy.
- The unit may malfunction if the surface is uneven.
• Install the unit in an indoor, well-ventilated area.
- For best performance, please maintain clearance of 4” on the back of the unit.
- Do not use outdoors. For indoor use only.
- Avoid direct sunlight.
• Avoid installation in a high humidity and/or dusty area.
- Humidity above 60% can cause the unit to rust, collect condensation, and may decrease eciency.
- Dust collected on the condenser coil will cause the unit to malfunction.
- Malfunctions due to temperatures above 75 degrees Fahrenheit, humidity above 60%,
or improperly maintained condenser coil will void the warranty.
• Select a location away from heat and moisture-generating equipment.
- Ambient temperatures above 75 degrees Fahrenheit may cause the compressor to malfunction.
- The unit should not be used in areas over 90 degrees Fahrenheit.
- Malfunctions due to ambient temperatures above 75 degrees Fahrenheit will void the warranty.
- Do not install the unit inside a closet or alcove
Safety
Cabinet Location Guidelines

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User Manual
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Commercial School Milk Coolers
Please read this manual thoroughly prior to equipment set-up, operation and maintenance.
When the equipment is received, all items should be carefully checked against the bill of landing to insure
all crates and cartons have been received. All units should be inspected for concealed damage by uncrating
the units immediately. If any damage is found, it should be reported to the carrier at once, and a claim should
be filed with the carrier. This equipment has been inspected and tested in the Avantco Refrigeration facility
and has been crated in accordance with transportation rules and guidelines. Manufacturer is not responsible
for freight loss or damage.
General
Take care when removing the skid so that it will not damage the cooler’s finish.
Location
The self-contained refrigeration system located at the bottom of the cabinet requires free air access for
proper operation. The back of the cabinet may be positioned against a wall, however, there must be a mini-
mum of four inches of clearance between the sides and a wall. It is necessary to properly level the cooler to
provide adequate drainage and ecient functioning of the unit.
Electrical
Check the proposed outlet to be used to ensure that the voltage, phase, and current carrying capacity of the
circuit from the electrical panel correspond to the requirements of the cabinet. Plug into a standard 120-volt
outlet. NEVER use an extension cord to power any unit. 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. Refer to the Serial
Tag for all pertinent electrical information.
General Operation
The milk coolers are cooled entirely by cold wall because of copper coils completely encircling the perimeter
of the storage compartment. During the refrigeration process, heat is removed through the evaporator tubing
and expelled through the condensing unit. It is important that the flow of air through the side louvers is not
restricted to ensure the condensing unit operates properly. Under normal operating conditions, any frost that
might accumulate on the walls during the “on” cycle of the condensing unit may melt during the “o” cycle.
Drains are installed in all milk coolers to accommodate melting frost. Coolers need to be installed over a floor
drain as there is no catch pan for melting frost.
Inspection
Installation

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User Manual
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Commercial School Milk Coolers
Adjusting the Temperature
Your new milk cooler is already factory-set to run at optimum temperatures for food safety and should
require no adjustments.
Refrigerators are set to cycle between a minimum temperature of 33 degrees Fahrenheit and a maximum
temperature of 40 degrees Fahrenheit.
Adjusting the temperature changes the minimum temperature your unit will run at. Your unit will not run
constantly at this setting. To change it, follow these instructions:
DIGITAL CONTROL UNITS
• Hold “SET” for 1 second The display will flash the current minimum temperature.
• Use the arrow buttons to adjust the minimum temperature you want it to run at.
• Press “SET” again to save your settings.
Always remember to calculate the dierential if you change the minimum temperature setting. The cabinet
temperature will fluctuate up to +7 degrees over your set minimum temperature as the compressor runs
and shuts o. Setting the temperature too high will result in unsafe maximum temperatures and possible
health code violations.
RUNNING A MANUAL DEFROST CYCLE
Units are pre-programmed to run automatic defrost cycles at preset intervals. However, if you would like to
run a manual defrost cycle at any time, please follow the steps below:
1. Press the defrost button (snowflake symbol and down arrow) for approximately 3 seconds.
2. Repeat to stop the defrost cycle.
NOTE: Ensure a drain is accesible for the unit to catch water from defrost cycle.
Please pay close attention to the safety notices in this section. Disregarding these notices may lead to serious
injury and/or damage to the unit.
ATTENTION
• To minimize shock and fire hazards, be sure not to overload outlet. Please designate one outlet for your unit.
• Do not use extension cords.
• Do not put your hands under the unit while it is being moved.
• When the unit is not in use for a long period of time, please unplug the unit from the outlet.
• After unplugging the unit, wait at least 10 minutes before plugging it back in. Failure to do so could cause
damage to the compressor.
UNPLUG CORD
• To minimize shock and fire hazards, please do not plug or unplug the cord with wet hands.
• During maintenance and cleaning, please unplug the unit.
Safety / Warning

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User Manual
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Commercial School Milk Coolers
WARNING
DISCONNECT THE POWER CORD BEFORE CLEANING ANY PARTS OF THE UNIT.
NOTE: We strongly recommend that any servicing be performed by an authorized service technician.
Loading Product
-Make sure there is at least four inches of clearance from the evaporator.
-Ensure all shelves are sitting level and properly secured before loading products.
-Do not store flammable and explosive gas or liquids inside the unit.
Cleaning the Condenser Coil
-For ecient operation, keep the condenser surface free of dust, dirt, and lint.
-We recommend cleaning the condenser coil at least once per month.
Cleaning the Interior of the Unit
-When cleaning the cabinet interior, use a solvent of warm water and mild soap.
-Do not use steel wool, caustic soap, abrasive cleaners, or bleach that may damage the interior finish.
-Wash door gaskets on a regular basis, preferably weekly. Simply remove the door gasket from the frame of
the door, soak in warm water and soap for thirty (30) minutes, dry it with a soft cloth, and replace it.
-Check door gaskets for proper seal after they are replaced.
PROPER GROUNDING REQUIRED
To minimize shock and fire hazards, make sure that the unit is properly grounded.
WARNING
• Do not attempt to remove or repair any component unless instructed by factory.
• Make sure that the unit is not resting on or against the electrical cord and plug.
• To minimize personal injury, do not hang on the doors.
• Do not store any flammable and explosive gas or liquids inside the unit.
• Do not attempt to alter or tamper with the electrical cord.
Operation / Maintenance

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User Manual
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Commercial School Milk Coolers
Condenser Coil Cleaning Instructions:
A dusty condenser may lead to high energy consumption, less cooling eectiveness,
and compressor damage.
The condenser coil is located at the bottom behind the panel.
1. Disconnect the electrical power from the unit.
2. Remove the front cover and base cover with a screwdriver.
3. Using a soft brush and/or vacuum, remove the dirt, lint, etc. from the finned condenser coil in a
vertical direction.
4. Clean the condenser with a commercial condenser coil cleaner, available from any kitchen equipment
retailer. Ex. Nobel Chemical Tech Line
5. After cleaning, straighten any bent condenser fins with a fin comb.
6. When finished, be sure to reinstall the front cover and base cover.
7. Reconnect the electrical power to the unit.

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User Manual
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Commercial School Milk Coolers
Troubleshooting
Problem Possible Solution
Unit Will not Turn on
• Check if the unit is plugged into a proper outlet with power
• Check if contoller's LED screen lights up
• Call service agency
Unit not Getting to Set
Temperature
• Check that unit is turned on and compressor is running
• Check door seals for rips, tears, cuts, etc.
• Check air flow inside cabinet of unit
• Call service agency
Unit not Holding Set
Temperature
Check if drain tube is connected to a floor drain, unit does drain excess
frost and water from inside cabinet to floor.
Controller Showing
E0 Error Call service agency
Low Refrigerant Levels Contact a service technician to check refrigerant levels
Door is Slightly Ajar Make sure door is completely closed
Condensation is Collecting on
the Cabinet and/or Floor
Gasket is not sealing properly
Clean, repair, or replace the gasket as necessary
Relative humidity is above 60%
Move unit to area below relative humidity or lower humidity level