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.

3

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

3

/

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.

4

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".

6

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.

8

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.

START-UP CHECKLIST

After your model has been installed, leveled, cleaned, and electrically connected
in accordance with this manual, please take the time before start-up to observe the
following precautions to assure trouble free operation:

1. Check that all exposed refrigeration lines are free of severe dents or kinks.

2. Check the condenser fan and evaporator fans for freedom to rotate without
any obstructions

3. Make sure that the cabinet is properly leveled (see "leveling" under install
tion and location section).

The system should run smoothly and quietly in accordance with generally accepted
commercial standards. If any unusual noises are heard, turn the unit off immediately
and check for any obstructions of the condenser or evaporator fans. Fan motors, fan
blades, or fan housings can be jarred out of position through rough handling in transit
or during installation.

Caution: If unit is unplugged or disconnected for any reason, allow several

minutes (5-6 minutes) before turning the unit back on to allow the system pressures
to equalize. Disregarding this procedure could cause an overload and prevent the
unit from operating.

REMOTE APPLICATIONS

All models are available for purchase as remote models in which case the condensing
unit is purchased separately and installed at the time of installation. All remote models
are equipped with an expansion valve located within the evaporator coil housing, and
both liquid and suction lines stubbed and extending out from the cabinet bottom behind
the rear grill. Installation of the refrigeration accessories, condensing unit, and electri­cal hook-up should be performed by qualified refrigeration personnel of a competent
refrigeration company only.

9

OPERATION

All cabinets must be given sufficient time to reach normal operating temperature
before placing any pre-chilled product inside cabinet. Milk cooler refrigerators are
designed to maintain an ideal cabinet temperature of 38°F to 40°F (3.3°C to 4.4°C)
and approximately 1 hour of operation is required to reach this temperature. During
pull-down, doors and lids should be kept closed.

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.

THERMOMETER CALIBRATION

After your new model has been given sufficient time to pull down to the above
specified temperature range, the exterior thermometer located on the upper grill
must be checked for calibration accuracy. All thermometers are carefully calibrated
at the factory prior to shipping but may be vibrated out of calibration through rough
handling in transit, shipping vibration, or during installation.

CALIBRATION CHECK

To check calibration, an accurate, mercury thermometer (within the temperature
range of your model) must be placed inside of the cabinet on the center shelf for at
least 15 minutes without any door openings. At this time, note the temperature on
the exterior cabinet thermometer, quickly open the door and compare it to the interior
thermometers temperature. Whatever the difference (if any) is the amount the exterior
thermometer must be adjusted.

The adjustment procedure varies depending on which thermometer is equipped with
your model (see figure 2).

DIAL THERMOMETER

For a dial thermometer, carefully pry the clear plastic lens cover from the thermometer
body using a slotted screwdriver. To adjust the needle, hold the center hub stationary
using a small slotted screwdriver and very carefully grasp and turn the needle to the
desired temperature using your fingers. Replace the lens cover and recheck the cali­bration.

10

OPTIONAL DIGITAL THERMOMETER

For a digital thermometer, note how many degrees the digital display needs to be
increased or decreased. Press twice directly on the Mylar display towards the right
center using your finger. After pressing the first time, the display should read "cal"
indicating that you are in the calibration mode and after pressing the second time,
the display should read either zero or a positive number or a negative number (this
number is the point of origin for calibration). If your digital display needed to be
increased, you must advance the point of origin by that many degrees by pressing
directly on the Mylar display towards the left top. If your digital display needed to be
decreased you must decrease the point of origin by that many degrees by pressing
directly on the Mylar display towards the left bottom. Once calibration is complete
return to normal temperature mode by pressing once again on the Mylar display
towards the right center. Now, recheck the calibration.

Example:

the digital display reads 45°F and the internal thermometer reads 40°F

so, the digital display must be increased by 5°. Press the right center of the display
twice and the number -1 is displayed (this is the point of origin and could have been
any number). Now, press the top left of the display five times to make the -1 go to
+4. Calibration is complete so press the right center of the display to return to normal
temperature mode.

11

12

FIGURE 2

THERMOMETER CALIBRA

TION

"COLD WALL" REFRIGERATION SYSTEM AND ADJUSTMENT

All self-contained "cold wall" Milk Cooler refrigerators are designed and factory set to
maintain an average cabinet temperature of 36°F. The temperature control is located
behind the front grill (grill with thermometer) and accessible by removing the front grill
as shown in figure 3. If an adjustment is necessary to maintain the above temperature
range only, place a screwdriver into the bottom thermostat adjustment screw labeled
"High Event" and turn clockwise for a colder cabinet

13

temperature or counterclockwise for a warmer cabinet temperature. Note that
adjusting a cabinet too cold (below the "High Event" setting of 30°F) could result
in freezing your product over long periods of time. Further adjustments out of the
factory design temperature range must be made by a qualified refrigeration
mechanic only. The cold wall system operates by wall temperatures reaching
below freezing (approximate wall temperature is 20°F) and should periodically be
manually defrosted to minimize wall ice accumulation. Manual defrost is achieved
by disconnecting the power supply to the refrigerator (unplugging power cord or
shutting off circuit breaker) for approximately 30 minutes allowing the frost to melt
and drain to the floor drain. Care should be taken not to scrape and potentially
puncture the wall since the refrigeration tubing is located behind the wall and could
be damaged.

Important Note: During manual defrost, be sure to have your floor drain connected

to a drainage destination.

FIGURE 3

COLD W

ALL THERMOSTAT

"FORCED AIR" REFRIGERATION SYSTEM AND ADJUSTMENT

All self-contained "Forced Air" Milk cooler refrigerators are designed and factory set to
maintain an average cabinet temperature of 36°F. The temperature control is located
inside the cabinet product compartment, on the interior top left air distribution grill as
shown in figure 4. If an adjustment is necessary to maintain the above temperature
range only, place a screwdriver into the thermostat slot and

14

turn clockwise for a colder cabinet temperature or counterclockwise for a warmer
cabinet temperature. Please note that turning the control completely counterclockwise
will turn "off" the refrigeration compressor, as it is an "off" position. Further adjustments
out of the factory design temperature range must be made by a qualified refrigeration
mechanic only.

Important Note: All refrigerators are designed with an automatic, "off-cycle" defrost

system, which means that defrosting occurs automatically when the compressor is
not operating during an off-cycle. Do not set the thermostat too cold where the cabinet
temperature will fall below 34°F because the evaporator will become blocked by ice
since the compressor off-cycle will be considerably shortened. This will result in loss
of product stored within the cabinet and require service to defrost the evaporator and
re-adjust the thermostat.

Caution: 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.

14

FIGURE 4

FORCED AIR THERMOSTAT

INTERIOR ACCESSORIES

The standard interior accessory package that is supplied from the factory with your
new Milk Cooler model consists of an epoxy coated, steel wire floor rack which sits on
the interior stainless steel floor (MC5 models receive two), and a floor drain stopper.

SAFETY PRECAUTIONS

The following safety precautions should be followed when operating any
appliances:

 Always disconnect the power cord before attempting to work on or clean any

equipment.

 Disconnect the power cord when the appliance will be idled for a long period

of time.

 Do not attempt to service this unit yourself as removing any covers may

cause exposure to dangerous voltage.

 Always route the power cord so that it is not likely to be walked on or

pinched by other appliances. Never use extension cords.

 Do not overload outlets with more than one appliance. This can result in fire

or electrical shock.

 Your model is equipped with a grounded and polarized plug. Do not defeat

the purpose of this plug by removing the ground post or using a non­polarized adapter without properly grounding the outlet.

 When a replacement part is required, always insist on factory authorized

parts only.

MAINTENANCE

PERIODIC CLEANING PROCEDURE

It is best to clean your refrigerator when the product load is at its lowest level inside
your cabinet. To clean the interior or exterior cabinet surfaces, the following procedure
should be followed:

1. Disconnect your model from its power supply and remove all products from
inside.

2. Open all doors and allow the cabinet to reach room temperature. Remove all
accessories from within the model, wash with a baking soda and warm water
solution, and rinse thoroughly with clear water. Dry all of the accessories
completely with a soft clean cloth.

3. Once the cabinet has reached room temperature, wash the entire cabinet
inside and out with a baking soda and warm water solution. For slightly more
difficult cleanups, ammonia or vinegar in warm water can be used. Rinse
thoroughly with clear water and dry with a soft clean cloth. Failure to dry all
surfaces completely may cause water stains or streaking on the aluminum or
stainless steel finish

4. Return all accessories to their respective positions and return electric supply
power to the model.

15

PRECAUTIONS

1. Never use harsh detergents, cleaners, scouring powders, or chemicals when
cleaning your model.

2. Strong bleaches tend to corrode many materials and should never come in
contact with stainless steel.

3. Tincture of iodine, or iron should not come in contact with stainless steel.
These solutions, which cause stainless steel to discolor, should be rinsed
off immediately if contact occurs.

4. Some foods, such as mustard, mayonnaise, lemon juice, dressings or salts,
may attack or corrode stainless steel.

5. Gritty, hard abrasives will mar the finish of stainless steel and aluminum and
are not recommended.

GENERAL PREVENTATIVE MAINTENANCE

Performance of the air-cooled condensing unit located inside of the compressor
machine compartment of your new model, depends exclusively upon the amount
of air passing through the condenser fins. Your refrigerator or freezer will run more
efficiently, consume less current, and provide a maximum of trouble-free service
throughout its lifetime if the condenser is kept clean and an adequate supply of
clean, cool air is provided at all times. Periodically (at least once a month) inspect
the condenser coil, which is located directly behind the rear panel grill, to check for
debris or blockage.

If the condenser coil is dirty or blocked, disconnect the power supply to your model
and using a stiff brush, brush the dirt from the condenser fins until the condenser is
clear from any debris. Using a vacuum cleaner with a brush attachment may aid in
this cleaning process. After cleaning, restore electrical service to your model.

PARTS AND SERVICE

Always provide the cabinet model and serial number (located on the data plate on

the inside right wall of the cabinet) whenever contacting the factory or your dealer
regarding questions or when ordering parts.

16

Model # __________________________________Serial # __________________

Notes: ______________________________________________________________

____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________

17

18

TROUBLESHOOTING AND SERVICING GUIDE

PROBLEM PROBABLE CAUSE CORRECTION

Condensing unit will 1.Line Disconnected, Switch Open. 1.Close Start Or Disconnect Switch
not start - no hum. 2.Fuse Removed Or Blown. 2.Replace Fuse.

3.Overload Protector Blown. 3.Determine Reason And
Correct/Replace.

4.Control “Off” Due To Cold Location. 4.Relocate Control

5.Control Stuck In Open Position. 5.Repair Or Replace Control.

6.Wiring Improper Or Loose. 6.Check Wiring Against Diagram.

Condensing unit will 1.Improperly Wired. 1.Check Wiring Against Diagram
not start - hums but 2.Low Voltage To Unit. 2.Determine Reason And Correct.
trips on overload 3.Starting Capacitor Defective. 3.Determine Reason And Replace.
protector. 4.Relay Failing To Close. 4.Determine Reason And Replace.

5.Compressor Motor Has A Shorted Or 5.Replace Compressor.

Open Winding.

6.Internal Mechanical Trouble In Compressor. 6.Replace Compressor.

7.Insufficient Air Supply. 7.Clear Condenser & Allow
Compressor To Cool Down.

Condensing unit 1.Additional Current Passing Through Overload 1.Check Wire Diagram Check For
starts and runs, but Protector. Added Components Connected To
short cycle on over- Wrong Side Of Overload Protector
load protector. 2.Low Voltage To Unit. 2.Determine Reason And Correct.

3.Overload Protector Defective. 3.Check Current, Replace Protector.

4.Run Capacitor Defective. 4.Determine Reason And Replace.

5.Excessive Discharge Pressure. 5.Check Ventilation, Restrictions In
Cooling Medium Or Refrig. System.

6.Excessive Suction Pressure. 6.Check For Misapplication.

7.Insufficient Air Supply 7.Clear Condenser & Allow
Compressor To Cool Down.

Condensing unit 1.Improperly Wired. 1.Check Wiring Against Diagram.
starts, but fails to 2.Low Voltage To Unit. 2.Determine Reason And Correct.
switch off of “start” 3.Relay Failing To Open. 3.Determine Reason And Replace.
winding. 4.Run Capacitor Defective. 4.Determine Reason And Replace.

5.Excessively High Discharge Pressure. 5.Check Discharge Shut-Off Valve,
Possible Overcharge.

6.Compressor Motor Has A Shorted Or Open 6.Replace Compressor.

Winding.

7.Internal Mechanical Trouble In Compressor. 7.Replace Compressor.

19

PROBLEM PROBABLE CAUSE CORRECTION

Condensing unit 1.Overload Protector. 1.See Problem # 3.
runs, but short 2.Thermostat. 2.Differential Must Be Widened.
cycles on: 3.High Pressure Cut -Out Due To: 3.

(a) Insufficient Air Supply. (a) Check Air Supply To Condenser
(b) Overcharge. (b) Evacuate And Re-Charge.
(c) Air In System (c) Evacuate And Re-Charge.

4.Low Pressure Cut - Out Due To: 4.

(a) Valve Leak (a) Replace, Evacuate And

Re-Charge.
(b) Undercharge. (b) Evacuate And Re-Charge.
(c) Restriction In Expansion Device. (c) Replace Expansion Device.

Condensing unit 1.Shortage Of Refrigerant. 1.Fix Leak, Evacuate And Re-Charge.
runs, but for 2.Control Contacts Stuck Closed. 2.Clean Contacts Or Replace Control.
prolonged periods 3.Excessive Heat Load Placed Into Cabinet. 3.Allow Unit Sufficient Time For
or continuous. Removal Of Latent Heat.

4.Prolonged Or Too Frequent Door Openings. 4.Plan Or Organized Schedule To
Correct Condition.

5.Evaporator Coil Iced. 5.Defrost Evaporator Coil.

6.Restriction In Refrigeration System. 6.Determine Location And Remove.

7.Dirty Condenser. 7.Clean Condenser Coil.

8.Filter Drier Clogged. 8.Replace, Evacuate And Re-Charge.

Start capacitor open 1.Relay Contact Not Opening Properly. 1.Clean Contacts Or Replace Relay.
shorted or blown. 2.Prolonged Operation On Start Cycle: 2.

(a) Low Voltage To Unit (a) Determine Reason And Correct.
(b) Improper Relay. (b) Replace With Correct Relay.
(c) Starting Load Too High. (c) Correct By Using Pump Down.

3.Excessive Short Cycling. 3.Determine Reason For Short Cycle,
(See Problem # 5) And Correct.

4.Improper Capacitor. 4.Determine Correct Size And
Replace.

Run capacitor open, 1.Incorrect Relay. 1.Check Size And Replace.
shorted or blown. 2.Excessively High Line Voltage, Over 110% 2.Determine Reason And Correct.

Of Rated Maximum.

Relay defective or 1.Incorrect Relay 1.Check Relay And Replace.
blown out. 2.Incorrect Mounting Angle. 2.Remount Relay In Correct Position.

3.Voltage Too low Or Too High. 3.Determine Reason And Correct.

4.Excessive Short Cycling. 4.Determine Reason And Correct
(See Problem # 5).

5.Loose Or Vibrating Mounting Position. 5.Remount Rigidly.

6.Incorrect Run Capacitor. 6.Replace With Proper Capacitor.

7.Loose Wiring On Relay Or Overload. 7.Tighten All Wiring Screws.

20

PROBLEM PROBABLE CAUSE CORRECTION

Product zone

1.Control Setting Too High. 1.Adjust T-Stat.

temperature too high.

2.Inadequate Air Circulation. 2.Rearrange Product Load To Improve
Air Circulation.

3.Dirty Condenser. 3.Clean Condenser Coil.

Suction line frosted or 1.Overcharge Of Refrigerant. 1.Evacuate And Re-Charge.
sweating. 2.Evaporator Fan Not Running. 2.Determine Reason And Correct.

3.Expansion Valve Stuck Open. 3.Clean Valve, Evacuate And
Re-Charge.

4.Expansion Valve Superheat Too Low. 4.Adjust Superheat To Required
Setting.

Liquid line frosted , 1.Restriction In Drier Strainer. 1.Replace Drier, Evacuate And
cold, or sweating. Re-Charge.

2.Liquid Line Service Valve Partially Closed. 2.Open Valve Fully Or Replace If
Necessary.

Noisy condensing 1.Loose Parts Or Mountings. 1.Tighten All Mounting Parts And
unit. Shroud Cover.

2.Tubing Rattle Or Vibration. 2.Reform Tubing To Be Free Of
Contact.

3.Bent Fan Blade Causing Excessive Vibration. 3.Replace Fan Blade.

4.Fan Motor Bearings Worn. 4.Replace Fan Motor.

Thermometer reads 1.Calibration. 1.Consult Operations Manual And
different than actual Calibrate.
temperature. 2.Defective. 2.Replace.

Water leaks inside 1.Condensate Drain Pan Not Installed Properly. 1.Consult Operation Manual For
unit. Install Instruction.

2.Unit Not Level. 2.Make Sure Unit Is Level Or Pitched
Back Slightly.

3.Drain Pan Misaligned. 3.Make Sure Drain Pan Is Aligned
Properly.

4.Defective Drain Pan. 4.Replace.

Doors Misaligned. 1.Shifted During Shipping. 1.Refer To Operation Manual For

Hinge Adjustment.

21

22

WIRING DIAGRAMS

23

Continental Warranty Procedure

Continental's warranty is 1 year on parts and labor, and 5 years on the compressor,
from the date of original installation on any unit.

Please consult the factory before any warranty service work is completed. Exceptions
will be made. For example; after hours, you must contact the factory at 1-800-523­7138 at extension 113 or 134. You MUST provide the model and serial number,
place of business, where the unit is located and if possible the installation date.
Contact the factory the following business day, during normal business hours
8 A.M. to 5 P.M. eastern time, to follow up with Continental's service department.

The customer has the freedom of using any certified technician for the warranty
service. The service company's information, such as, name, address, phone and
fax numbers, must be provided. The invoice may be faxed or mailed to the address
listed below for payment; however, Continental has the right to contact the service
company with questions on any unnecessary, excessive charges.

Not all items are covered under warranty, such as, temperature adjustments,
calibration, leveling, dirty condensers, any preventive maintenance and any
misapplication i.e. not enough ventilation.

Please consult the factory for any parts or questions regarding the above warranty
procedures.

Thank You,
Parts and Service

24

W

arranty Compressor Procedures

If the compressor fails within the first (12) months of use or (20) months by the
date code on the compressor, an “over-the-counter exchange” must be made through
a Tecumseh or Copeland dealer.

After the first year the additional (4) year compressor warranty is through
Continental Refrigeration, and can be handled by one of the following methods:

(1)Continental will supply the replacement compressor at no charge and

pay for regular ground freight.

(2)Continental will supply the compressor at no charge and the end user,

dealer or service company pays for the freight, other than regular
ground (COD, Visa or Mastercard).

(3)A compressor can be purchased locally and Continental will either

replace the compressor for stock or offer an allowance towards its pur
chase. The end user is to pay the difference:

(A)

1

/5 h.p. to 1/3 h.p.-Up to $100

(B)

1

/2 h.p. to 3/4 h.p.-Up to $250

(C) 1 h.p. to 2 h.p.-Up to $350

Exceptions will be made depending on circumstances, but in all cases,
Continental must be notified prior to any transaction, if possible. The tag from the
defective compressor or the information (if unable to remove) must be returned for
proof of failure after the first year. Please contact the service department with any
further questions.

Thank You,
The Service Department

25

Items NOT Covered Under Warranty:

Consult your owner's manual for detailed information on the

following: (page #'s listed beside each line item).

I. Preventative Maintenance

A. Dirty Condenser (13)
B. General Hardware Adjustments

1. Casters/Legs (3)

2. Handles

3. Hinges

4. Light Bulb Replacement

II. Compressor Failure Due to Poor Air Circulation

A. Reach-In, Roll-In Models, Warmers (White)*

1. 12" Above Grill Area (2-3)

2. 3" On Sides, Back & Underneath (Reach-In only) (2-3)

B. Backbar, Keg, Bottle Cooler Units & Glass, Plate Chiller Units (Green)*

1. 3" On Sides & Back (2-3)

C. Undercounter, Sandwich & Pizza Prep Units (Yellow)*

1. 3" On Sides, Back & Underneath (2-4)

D. Front Breather Units (Yellow)*

1. Minimal Ventilation Needed

E. Milk Coolers (Blue)*

1. 3" On Sides, Back & Underneath (3)
III. Temperature Adjustments / Calibrations (8-11)
IV. Leveling (2-3)

** FAILURES DUE TO LACK OF MAINTENANCE, POOR INSTALLATION OR INAP­PROPRIATE OPERATION OF THE UNIT MAY VOID CUSTOMER'S WARRANTY**

Please contact the Service Dept. with any questions pertaining to the above.

Thank You,

*Color of owner's manual. The Service Dept

A DIVISION OF NATIONAL REFRIGERATION & A/C PRODUCTS, INC.

539 Dunksferry Road Bensalem, Pennsylvania 19020-5908

Phone [phone] [phone] Fax [phone]

www.continentalrefrigertor.com

26