Continental Refrigerator MC3-DCW Installation Manual
INSTALLATION AND OPERATIONS MANUAL
Worktop and Undercounters
Milk Coolers
Forced Air & Cold Wall
Please fill in the following information for your NEW unit, carefully
read the instructions in this manual and file it for future reference.
MODEL NO.
SERIAL NO.
PURCHASED FROM
INSTALL DATE
1-800-523-7138
Continental Refrigerator
A Division of National Refrigeration
& Air Conditioning Products, Inc.
539 Dunksferry Road
Bensalem, PA 19020-5908
P 215-244-1400
F 215-244-9579
www.continentalrefrigerator.com
TABLE OF CONTENTS
Page
Receiving Your New Model ............................................................................................................. 3
Uncrating Your New Model.............................................................................................................. 3
General Information and Important Operating Facts ................................................................................ 3
Serial Data Tag .......................................................................................................................................................3
Installation and Location ................................................................................................................ 4
Ventilation ..............................................................................................................................................................4
Floor Loads ............................................................................................................................................................4
Floor Drain .............................................................................................................................................................4
Evaporator Condensate Removal ...........................................................................................................................5
Cabinet Washout Drainage Hose ...........................................................................................................................5
Initial Cleaning Procedure .............................................................................................................. 6
Start-Up Procedure ....................................................................................................................... 6
Electrical Connections ............................................................................................................................................6
Start-Up Checklist ..................................................................................................................................................................7
Operation................................................................................................................................... 7
Door Latch and Lid Lock .......................................................................................................................................7
Latch Adjustment and Lock Replacement ..............................................................................................................7
Dial Thermometer and Calibration .........................................................................................................................7
Cold Wall Refrigeration System and Adjustment ...................................................................................................8
Forced Air Refrigeration System and Adjustment ..................................................................................................8
Removal of Top Assembly .....................................................................................................................................9
Interior Accessories ...............................................................................................................................................9
Maintenance .............................................................................................................................. 10
Periodic Cleaning Procedure .................................................................................................................................10
General Preventative Maintenance .........................................................................................................................10
Care and Cleaning of Stainless Steel ................................................................................................ 11
Parts and Service ........................................................................................................................ 12
Placing a Service Call ............................................................................................................................................12
Obtaining Replacement Parts Under Warranty ......................................................................................................12
Obtaining Replacement Compressor Under Warranty ...........................................................................................12
Optional Accessories .................................................................................................................... 13
Digital Thermometer and Calibration .....................................................................................................................13
Troubleshooting and Servicing Guide ................................................................................................ 14
Wiring Diagrams ......................................................................................................................... 16
Limited Extended Protection Warranty ............................................................................................... 17
OPERATIONS MANUAL
MILK COOLERS FORCED AIR & COLD WALL
RECEIVING YOUR NEW MODEL
Congratulations on your purchase of Continental Refrigerator’s
superior milk cooler! When your shipment arrives, thoroughly
examine the packaging for any punctures, dents, or signs of
rough handling. It is in your best interest to partially remove
or open the shipping container to examine the contents for
any missing accessories or concealed damage which may have
occurred during shipment. If the cabinet is damaged, it must
be noted on the carrier’s delivery slip or bill of lading. A Freight
Claim must be filed with the shipping company. FREIGHT
DAMAGE IS NOT COVERED UNDER WARRANTY.
UNCRATING YOUR NEW MODEL
The shipping carton should remain on your cabinet to protect
against dents or scratches while transporting to the actual
set-up location. Remove the shipping container only at the last
possible moment by using a pry bar to take out all the staples
from around the bottom of the crate. Slide the cardboard carton
up and off the unit, being careful not to rub against the cabinet.
Remove any accessories or boxes on the skid or in the cabinet.
Dispose of all packaging materials properly.
GENERAL INFORMATION AND
IMPORTANT OPERATING FACTS
This manual has been compiled to aid in the installation, operation and maintenance of your new equipment. Please take the
time to read it and familiarize yourself with your equipment and
its operation, to enjoy optimum performance.
Continental Refrigerator offers a variety of accessories for your
model (see “Optional Accessories” section towards the back of
this manual or contact your dealer for more information).
SERIAL DATA TAG
A serialized data tag is permanently attached to the inside righthand wall of your unit. (see Figure 1). In addition to identifying
the specific product, this label provides important information
regarding electrical requirements and refrigeration charge, as
well as agency listings and factory contacts.
FIGURE 1: Data Tag
Your milk cooler comes with the casters pre-installed. Two
(2) bolts secure the cabinet to the wooden skid. The bolts are
located at each end on the underside of the cabinet. Using a ¾”
socket or open end wrench, remove the bolts. You can now lift
the cabinet off the skid, or carefully knock the wood supports off
each end of the skid and roll your milk cooler off.
IMPORTANT NOTE: Do not under any circumstances, lay
your new model on its front or sides. For a brief period
of time, you may lay the cabinet on its back, but only
when it’s properly blocked so as not to crush the back
or end panels and also to allow provision for your hands,
in order to set it in its upright position without damaging
the cabinet. Do not plug in and operate model for at
least three (3) hours after cabinet is set upright from
being on its back as this can damage the compressor.
IMPORTANT NOTE: The model and serial number should
be noted on the front cover of this manual, in the spaces
provided. If parts or service are ever needed for your unit,
this information will be required to verify warranty status
and to properly identify any parts that may be needed.
All cabinets must be given sufficient time to reach normal
operating temperature before placing any pre-chilled milk inside
cabinet. Approximately 1 hour of operation is required to lower
the cabinet temperature to 38°F (4°C). During pull-down, doors
and lids should be kept closed (see “Operation” section for
further information).
OPERATIONS MANUAL
3
MILK COOLERS FORCED AIR & COLD WALL
IMPORTANT NOTE: It is strongly recommended that
top lids and doors be kept in the closed position when
the unit is not in use or between rush periods. This is
extremely important during the summer months and in
hot kitchens. Do not keep the top lids and doors open for
prolonged periods of time and never operate forced air
models for longer than four hours with lids and doors
open as evaporator coil can ice and may have to be
manually defrosted.
Prior to factory shipping, all products are performance-run
tested for a minimum of 12 hours providing a highly sophisticated temperature recording exclusive to each individual
cabinet. This recording is supplied within this manual packet. A
final evaluation, including analysis of cabinet performance, leak
check, vibration, noise level and visual examination is made by
a qualified quality control team to assure a superior product.
The carrier signs to this effect when they accept the product for
shipping. To insure the maximum in safety and sanitation, all
models are listed under the applicable standards of Underwriters
Laboratories and the National Sanitation Foundation.
INSTALLATION AND LOCATION
Before moving the cabinet to its final point of installation, measure all doorways or passages to assure sufficient clearance.
provided. Your model has been designed to operate only
with the casters supplied. Do not at any time obstruct the
area below the grill in the front or rear of the cabinet in
any way, and never place or store anything inside of the
cabinet machine compartment. These rules are essential
for maximum cooling capacity and long life of refrigeration parts.
FLOOR DRAINS AND LOADS
Your milk cooler should be located over top of, or close to, a
building floor drain. The floor should provide level positioning,
be free of vibration and strong enough to support the total combined weights of your new model plus the maximum product
load which might be placed into it. Keep in mind that all the
weight is concentrated at the casters. To estimate the possible
product weight, assume that each cubic foot of storage space
weighs approximately 35 pounds. Multiply 35 pounds by the
amount of cubic feet in the cabinet to obtain the product load
weight.
For example, a 20 cubic foot refrigerator can hold approximately
700 pounds of product (35 x 20). Assuming the cabinet itself
weighs 300 pounds, the total combined weight of cabinet and
product is approximately 1000 pounds. Therefore, the floor in
this example must be able to support up to 1000 pounds.
VENTILATION
The final location site of your forced air or cold wall refrigerator
must provide a large quantity of cool, clean air. All refrigeration
systems operate most efficiently and trouble-free with cool,
dry air circulation. Avoid locations near heat and moisture
generating equipment including ovens, cooking ranges, fryers,
dishwashers, steam kettles, etc., or in direct sunlight (where
temperatures can exceed 100°F). Do not select a location in an
unheated room or area where temperatures may drop below
55°F. Air supply to the condensing unit is equally important.
Restricting the air places an excessive heat load on the condensing unit and adversely affects its operation.
IMPORTANT NOTE: To assure maximum operating
efficiency, your new cabinet should be located where an
unrestricted air supply can be circulated to the condensing unit. For optimum performance, a minimum clearance of 3” on each side and rear of the cabinet should be
CABINET CLEAN OUT DRAIN AND HOSE
All forced air and cold wall models contain a 1” diameter clean
out drain with a drain stopper and 3’ long ¾” ID drain hose. The
floor drain is located on the bottom right hand floor in the storage compartment. The external drain connection and hose are
accessible behind either the front or rear grill (see Figure 3 for
location). A flexible hose, attached to the drain line under the
cabinet, is located behind the front grill, toward the right hand
side (see Figure 3). The clean out drain hose should be routed
directly to a building floor drain. Never place the hose in the condensate pan of your milk cooler. The hose must be positioned
safely so any liquid flows directly into the floor drain and does
not spill onto the floor, to avoid any tripping or slipping hazards.
4
OPERATIONS MANUAL
MILK COOLERS FORCED AIR & COLD WALL
MILK COOLER COMPONENTS
[COLD-WALL MODEL SHOWN]
MILK COOLER COMPONENTS
[FORCED-AIR MODEL SHOWN]
IMPORTANT NOTE: It is very important that your milk
cooler is properly level during operation. If it is not level,
doors won’t close properly and gaskets won’t provide a
good seal, which will cause your unit to run excessively.
Excess ice will accumulate inside the cabinet, around the
door openings and on the forced air evaporator coil. If
allowed to continue, ice will eventually block the coil and
the refrigeration system won’t be able to maintain proper
temperature, resulting in loss of product stored inside. In
addition, a cabinet that is not level will allow condensation water to overflow the pan and spill into the storage
compartment.
FIGURE 2: Milk Cooler Components (Forced Air Models)
TOP ASSEMBLY
(REMOVED)
EVAPORATOR COIL
[FORCED-AIR ONLY]
TEMP. CONTROL
[FORCED-AIR]
HINGED LID
LATCH
LATCH
KEEPER
FANS
[FORCED-AIR]
LOCK
JOINING
STRIP
EVAPORATOR CONDENSATE REMOVAL
(Forced Air Models)
All forced air models have a built-in electric condensate vaporizer located on the underside of the cabinet (see Figure 3) and
are completely self-defrosting. To clean the vaporizer, disconnect the power by unplugging the cabinet power cord from the
supply. Remove the front grill by taking out the 2 screws at
each end. Gently pull the grill forward, away from the cabinet,
being careful not to damage the tubing from the thermometer
to the sensing bulb. The electric vaporizer is provided with a
cord, that must be securely plugged into the proper receptacle
on the control box.
IMPORTANT NOTE: It is extremely important to ensure
the condensate pan is plugged into the receptacle labeled
“vaporizer” and that the condensing unit is plugged into
the receptacle labeled “condensing unit.” DO NOT connect the floor drain to the condensate pan. The electric
vaporizer is provided to eliminate condensation moisture
only. Placing the floor drain hose in the electric vaporizer
will create unsanitary and unpleasant odors. Water from
the floor drain will also overflow the condensate pan and
spill onto the floor, creating unsafe conditions.
FRONT DOOR
FRONT GRILL
THERMOMETER
CONDENSING UNIT
ELECTRIC VAPORIZER
FLOOR
RACK
FIGURE 3: Milk Cooler Components (Cold-Wall Models)
LID
FRONT DOOR
(OPENED)
FRONT GRILL
(REMOVED)
ELECTRICAL
RECEPTACLE
CONDENSER
OPERATIONS MANUAL
DRAIN CONNECTION
COMPRESSOR
TEMP. CONTROL
[COLD-WALL MODELS]
5
MILK COOLERS FORCED AIR & COLD WALL
INITIAL CLEANING PROCEDURE
Prior to start-up and before placing any product inside of your
cabinet, the interior should be thoroughly cleaned. Washing
with a mild soap and warm water solution is recommended
for removing dirt and grime from the surfaces of your cabinet.
This should be followed by cleaning with a baking soda solution
(three (3) tablespoons of baking soda to each quart of warm
water). Rinse thoroughly with clear water and dry with a clean,
soft cloth.
IMPORTANT NOTE: Never use harsh detergents, cleaners, scouring powders or chemicals when cleaning your
model. Failure to dry the interior surfaces after cleaning
may result in a streaking or staining of the metal.
Complete cleaning procedures and precautions are listed in the
(“Periodic Cleaning Procedure” under “Maintenance”).
START-UP PROCEDURE
ELECTRICAL CONNECTIONS
To insure proper operation, your new model must be connected
to an individual circuit that can supply the full voltage as stated
on the cabinet serial data plate. For correct voltage, power draw,
and wire accommodations, check the data on the serial data
plate located on the inner right wall of your new model. Verify
that this information exactly matches the electrical characteristics at the installation location. An electrical wiring diagram,
located on the inside compressor compartment rear, next to
the electrical console box, should also be consulted during
connection. For reference, a copy of each electrical wiring diagram is located towards the back of this manual (see “Wiring
Diagrams” section).
Refrigeration compressors are designed to operate within
+/-10% of the rated voltage indicated on the cabinet serial
plate. Excessively high or low supply power can burnout the
compressor. This can be easily detected and will void the factory warranty. Full voltage at the correct rating, on a separate,
designated circuit, not affected by the operation of other electrical appliances, must be available to the refrigeration unit at all
times. Extension cords should never be used on commercial
equipment, as they can overheat and/or result in low voltage.
GFI/GFCI RECEPTACLES
Building codes in some areas may require certain 115 volt
receptacles to be protected by a Ground-Fault Circuit Interrupter
(GFCI or GFI). These devices are not recommended for most
commercial refrigerators and freezers, since nuisance trips can
occur (typically due to moisture) causing temporary loss of
power. This may result in intermittently high storage temperatures and potentially unsafe food product. If you decide to connect your equipment to a GFCI protected receptacle, a properly
sized, commercial grade circuit breaker should be used on a
separate, designated power supply. Alternatively, a qualified
electrician may be able to hard wire your equipment, eliminating the need for a GFCI device. Contact Continental’s Service
Department before making any modifications to your cabinet,
to avoid loss of warranty coverage.
NOTE: GFCI DEVICES ARE NOT RECOMMENDED.
PRODUCT LOSS AND/OR PROBLEMS RESULTING FROM
NUISANCE TRIPS OR CONNECTION TO A DEFECTIVE
OR IMPROPER POWER SUPPLY, ARE NOT COVERED
UNDER WARRANTY. UNAUTHORIZED MODIFICATIONS
TO YOUR EQUIPMENT OR THE POWER CORD CAN
CAUSE AN ELECTRICAL HAZARD AND WILL VOID THE
FACTORY WARRANTY.
115 VOLT, 60 HZ, 1 PHASE CONNECTION
All 115 volt models are provided with a factory
installed, UL approved 15-amp power cord and
NEMA 5-15P plug, or a 20-amp cord with a
NEMA 5-20P plug. To insure proper operation,
this equipment must be plugged into a NEMA
compatible, grounded receptacle that can supply the full voltage and amperage stated on the
serial plate (see Figure 1).
IMPORTANT NOTE: A SEPARATE, ISOLATED, PROPERLY
SIZED POWER SUPPLY MUST BE PROVIDED. GFCI
DEVICES AND/OR EXTENSION CORDS SHOULD NOT
BE USED. PRODUCT LOSS, AS WELL AS PROBLEMS
RESULTING FROM NUISANCE TRIPS OR HIGH/LOW
VOLTAGE, ARE NOT COVERED UNDER WARRANTY.
SPECIAL VOLTAGE CONNECTIONS
When models are ordered from the factory with special, optional
voltages, connections should be made as required on the
electrical wiring diagram provided on the inside compressor
compartment rear next to the electrical console box.
6
OPERATIONS MANUAL
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