Commercial School Milk Cooler
User’s Manual
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User Manual
Commercial School Milk Coolers:
178MC34HC, 178MC49HC, 178MC58HC
Please read the manual thoroughly prior to equipment set-up,
operation and maintenance.
08/2018
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User Manual
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. PARA
SER 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.
ATENCIÓN – RIESGO DE INCENDIO O EXPLOSIÓN DEBIDO A REFRIGERANTE INFLAMABLE UTILIZADO.
SIGA LAS INSTRUCCIONES DE MANIPULACIÓN CON CUIDADO CONFORME A LAS REGLAS DE LA
MUNICIPALIDAD.
ATTENTION – RISQUE DE FEU OU D’EXPLOSION SI LE FRIGORIGÈNE EST INFLAMMABLE. SUIVRE
LES INSTRUCTIONS DE MANUTENTION AVEC SOIN CONFORMÉMENT AUX RÈGLEMENTATION
GOUVERNEMENTALE LOCAUX.
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User Manual
Please read this manual thoroughly prior to equipment set-up, operation and maintenance.
Inspection
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.
Installation
GENERAL
Take care when removing the skid, so that it will not damage the cooler’s finish. Do not tip cabinet to
install casters or legs. Insure that the casters or legs are screwed all the way into the base.
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 minimum four inch clearance between the sides and a wall. It is necessary to properly level
cooler to provide adequate drainage and efficient functioning of the unit.
ELECTRICAL
Check the proposed outlet to be used to insure that the voltage, phase, and current carrying
capacity of the circuit from the electrical panel correspond to the requirements of the cabinet. Plug
all standard models into a 110 volts A.C.60 cycle 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.
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User Manual
General Operation
The milk coolers are cooled entirely by convection as a result 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 in order 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 “off” cycle. Drains are installed in all milk coolers to
accommodate melting frost.
Adjusting the Temperature
Your new refrigerator or freezer 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.
Freezers are set to cycle between a minimum temperature of -5 degrees Fahrenheit and a maximum
temperature of 2 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 sec. 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 differential 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 off. Setting the temperature too high will result in unsafe maximum
temperatures and possible health code violations.
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User Manual
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.
General Maintenance
PERIODIC CLEANING
Beginning with the initial installation, the interior surfaces of the cabinet should be periodically
wiped down with a solution of warm water and baking soda. This solution will remove any odors
from spillage that has occurred. The exterior of the cabinet should also be cleaned frequently with a
commercial grade glass cleaner or with mild soap and water. Never, under any circumstances, use
an abrasive cleaner or alkaline solution.
Monthly cleaning of the condenser will aid the heat transfer characteristics of the refrigeration system
and increase its efficiency. To accomplish this, remove the louvered panel from the cabinet and use
a wire brush to loosen any dirt particles that are attached to the fins. After this is accomplished, use
a vacuum cleaner to remove the loosened particles.
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User Manual
Troubleshooting
Compressor Will Not Start, No Hum
Service cord unplugged Plug in service cord
Fuse blown or removed Determine reasons and correct
Control stuck open Repair or replace
Wiring incorrect Check wiring against the diagram
Compressor Will Not Start, Hums but Trips Overload Protector
Improperly wired Check against the wiring diagram
Low voltage to unit Determine the reason and correct
Starting capacitor defective Determine the reason and replace
Relay failing to close Determine the reason, correct or replace
Compressor Starts & Runs but Short Cycles on Overload Protector
Low voltage to unit Determine the reason and correct
Overload defective Check current, replace overload protector
Excessive head pressure Check ventilation or restriction in refrigeration system
Compressor hot-return gas hot Check refrigeration charge, fix leak if necessary
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