Continental Refrigerator MC5-D, Milk Cooler Installation Manual

Operation, Installation and

Instruction Manual

For

Forced Air & Cold Wall

Milk Coolers

A Division of National Refrigeration & Air Conditioning Products, Inc.

539 Dunksferry Road “ Bensalem, PA 19020-5908

215-244-1400 • 1-800-523-7138 • Fax: [phone]

www.continentalrefrigerator.com

REV10/04

Operators Manual

Table of Contents Page

Receiving Your New Model............................................................................................3

General Information And Important Operating Facts ....................................................3

Uncrating Your New Model ............................................................................................4

Installation And Location2Clearances ............................................................................4

Ventilation ......................................................................................................................4

Floor Loads ....................................................................................................................5

Locating Condensate Evaporator - Forced Air Model....................................................6

Cabinet Washout Drainage Hose ..................................................................................7

Initial Cleaning Procedure..............................................................................................7

Start-Up Procedure ........................................................................................................8

Electrical Connections....................................................................................................8

115 Volt, 60 Hz, 1 Phase Connection............................................................................8

208-230 Volt, 60 Hz, 1 Phase Connection ....................................................................8

Special Voltage Connections ........................................................................................9

Start-Up Checklist ..........................................................................................................9

Remote Applications ......................................................................................................9

Operation ......................................................................................................................10

Thermometer Calibration ..............................................................................................10

Calibration Check..........................................................................................................10

Dial Thermometer ........................................................................................................10

Optional Digital Thermometer ......................................................................................11

“Cold Wall” Refrigeration System And Adjustment ......................................................12

“Forced Air” Refrigeration System And Adjustment ......................................................13

Interior Accessories ......................................................................................................14

Safety Precautions ........................................................................................................15

Maintenance..................................................................................................................15

Periodic Cleaning Procedure ........................................................................................15

Precautions ..................................................................................................................15

General Preventative Maintenance ..............................................................................15

Parts And Service..........................................................................................................15

Troubleshooting And Servicing Guide ..........................................................................17

Wiring Diagrams............................................................................................................22

Warranty........................................................................................................................23

RECEIVING YOUR NEW MODEL

Congratulations on your recent purchase of continental refrigerator superior food
equipment products! When your shipment arrives, please thoroughly examine the
shipping crate for any punctures, dents, or signs of rough handling. It is in your best
interest to partially remove or open the shipping container in order to examine the
model for any concealed damages, which may have occurred during shipment. If the
model is damaged, it must be noted on the delivering carrier's delivery slip or bill of
lading (see “filing a damage claim” under warranty section).

GENERAL INFORMA

TION 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 all of the material in order to
become more familiar with your equipment and its operation, and enjoy optimum
performance.

All forced air and cold wall models contain a 1" diameter clean out, floor drain with
drain stopper and 3 feet of ¾" ID drain hose. The floor drain is located on the bottom
right hand inside floor and the drain hose is located behind the front grill. All forced
air models are completely self-defrosting and use an automatic, defrost condensate
water evaporating system where the drain pan has been factory installed behind the
rear grill. This pan is simply screwed in place and should not have to be removed
unless clean out is necessary.

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. During pull-down, doors and lids
should be kept closed (see “operation” section for further information).

On all forced air and cold wall models, 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 models are performance run tested for a minimum of 12
hours providing a highly sophisticated temperature analysis recording exclusive to
each individual cabinet. This recording is supplied within this manual packet. A final
leak check, vibration, noise level and visual examination is made by a qualified quality
control team to assure a quality product. The carrier signs to this effect when he
accepts the product for shipping. To insure the maximum in safety and sanitation, all
models are listed under the reexamination service of underwriter's laboratories and
with the national sanitation foundation.

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UNCRATING YOUR NEW MODEL

The shipping container should remain on your model as protection against dents
or scratches while transporting it to the actual set-up location. Remove the shipping
container only at the last possible moment by following these simple steps:

1. Using a pry bar, pry off and remove crate end bottom staples.

2. Pry off and remove crate front and rear bottom staples.

3. Slide crate upward and remove it, being careful not to rub against cabinet.
There are two (2) bolts securing the cabinet to the wooden skid. The bolts are
located at each end on the underside of the skid. Using a

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4" socket or open-end

wrench, remove the bolts and carefully slide the model off of the skid. After skid
removal, the cabinet can be rolled onto the floor and into place.

Important Note: Do not under any circumstances lay your new model on its

front or sides. Only for a brief period, may you lay the model on its back and only
then, when its properly blocked so as not to crush the louvered venting panel and
also to allow provision for your hands in order to set it in its upright position without
inflicting damage to 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 damage
could result to the compressor.

INST

ALLATION AND LOCATION

CLEARANCES

Before moving the cabinet to its final point of installation, accurately measure all
doorways or passages to assure clearance. If additional clearance is needed,
cabinet doors and lids can be easily removed (see instructions outlined in “removal
of doors” section).

VENTILATION

The final location site of your forced air or cold wall refrigerator must be able to
provide a large quantity of cool, clean air. The refrigeration system operates most
efficiently and trouble-free with cool, dry air circulation. Avoid locations near heat
and moisture generating equipment such as stoves, ovens, cooking ranges, fryers,
dish washers, steam kettles, etc., and also direct sunlight where temperatures can
be in excess of 100°F. Also, 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 supply will place an excessive heat load
on the condensing unit and adversely affect its operating efficiency.

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Important Note: To assure maximum operating efficiency, your new “MC”

series model 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 must

be provided. Your model has been designed
to operate with only the casters supplied. If necessary, special venting or air supply
ducts must be installed by the installer if any of the above conditions cannot be
achieved. 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 LOADS

The floor at the final location site must be level, 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. A fully loaded reach-in model may reach 2,000 - 3,000
pounds. To estimate the possible product load 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 and obtain the product load weight. For example, a 20 cubic
foot refrigerator can hold approximately 700 pounds of product (35 x 20) and assuming
the refrigerator itself weighs 300 pounds, the total combined weight of cabinet and
product is approximately 1000 pounds. Therefore, the floor in this example must be
capable of supporting up to 1000 pounds.

Important Note: It is extremely important that your new model is perfectly

level for proper operation. If it is not

level, the following adverse conditions will

become apparent:

1. The door(s) will not be properly aligned and consequently will not provide
a good seal.

2. You model will run excessively due to improper door seal(s).

3. An excessive amount of ice will accumulate inside the cabinet, around the
door opening(s) and especially on the finned evaporator coil. If allowed to
continue, ice will eventually block the coil and the model will fail. This will
result in the loss of all food stored within the cabinet.

4. Defrost water will fail to drain properly and will overflow the evaporator coil
drain pan and into the cabinet of both refrigerator and freezer models.

5

LOCATING CONDENSATE EVAPORATOR - FORCED AIR MODEL

All Forced air milk cooler models utilize a unique hot air condensate water evaporating
system, which is completely self-contained and no further assembly or maintenance
is required. To locate and remove (if desired for cleaning) the condensate pan,
remove the rear

cabinet grill cover screws and remove the screws for the mounting
bracket holding the pan on top of the compressor (see figure 1). Slide the condensate
pan toward you with bracket attached, carefully sliding drain tube form the pan.
When re-installing the drain tube into the pan, make sure it is not blocked or kinked.
In some adverse conditions such as high ambient temperature, high humidity,
extremely heavy usage, and frequent loading for prolonged periods of time, an
optional electric condensate evaporator pan may be purchased as an accessory.
An electric condensate evaporator pan is also supplied with all remote models. To
install an electric condensate pan, remove the rear grill and attach the mounting
bracket supplied with the pan to the side of the cabinet being sure not to restrict
the airflow of the condensing unit. Slide the condensate pan onto the bracket,
re-install the drain tube into the pan and plug the ten-foot power cord into the
receptacle labeled “vaporizer” located on the compressor compartment electrical
box.

Important Note: It is extremely important to be sure that the optional

electric condensate pan is plugged into its correct receptacle labeled
“vaporizer” and that the condensing unit is plugged into its correct receptacle
labeled "condensing unit".

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7

FIGURE 1

CONDENSATE EVAPORATOR LOCATION - "FORCED AIR" ONLY

CABINET WASHOUT DRAINAGE HOSE

All forced air and cold wall models contain a 1" diameter clean out, floor drain with
drain stopper and 3 feet of ¾" ID drain hose. The floor drain is located on the bottom
right hand inside floor and the drain hose is accessible behind either the front or rear
grill (see figure 1 for location).

INITIAL CLEANING PROCEDURE

Prior to start-up and before placing any product inside of your new model, the
interior of the cabinet should be thoroughly cleaned. Washing with a mild soap
and warm water solution is recommended for cleaning the galvanized and stainless
steel 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
the maintenance section.

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 draws, 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 at the rear of this manual in the "maintenance" section.

Important Note: The condensing unit supplied with all self-contained models is

designed to operate with a voltage fluctuation of + 10 % of the voltage indicated on
the cabinet serial data plate. Full voltage of the correct service, on an individual line
not affected by the operation of other electrical appliances, must be available to the
condensing unit at all times. Burnout of the compressor due to exceeding the

high or low voltage limits is easily detected and will automatically void the
factory warranty.

115 VOLT, 60 HZ, 1 PHASE CONNECTION

All 115 volt models are provided with a U.L. approved power cord and polarized plug
which is factory installed.

Warning: Any alterations to this cord and plug could cause an electrical hazard

and will void the factory warranty.

To insure proper operation, this equipment must be plugged into a NEMA 5-15r
compatible, grounded receptacle that can supply the full voltage as stated on the
serial data plate.

208-230 VOLT, 60 HZ, 1 PHASE CONNECTION

All 208-230 volt models are to be permanently connected and are provided with
four (4) field wiring leads which exit the electrical console box located in the
machine compartment rear, next to the compressor. The cabinet circuitry is 115
volts and the condensing unit is 208-230 volts in which the wiring includes a neutral
and a mechanical ground. This wiring should be connected to the appropriate power
source by a qualified electrician and must conform to all local electrical codes.

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