Continental Refrigerator Refrigerators and Freezers User Manual
Operation, Installation and
Instruction Manual
for
Reach-In
Refrigerators and Freezers
Continental Scientific
A Division of National Refrigeration & Air Conditioning Products, Inc.
539 Dunksferry Road · Bensalem, PA 19020-5908
215-244-1400 · 1-800-523-7138 · Fax: 215-244-9579
Operators Manual
Table of Contents Page
RECEIVING YOUR NEW MODEL........................................................................ 1
GENERAL INFORMATION AND IMPORTANT OPERATING FACTS ................. 1
UNCRATING YOUR NEW MODEL ......................................................................2
INSTALLATION AND LOCATION ........................................................................2
CLEARANCES...........................................................................................2
VENTILATION ...........................................................................................2
FLOOR LOADS..........................................................................................3
INSTALLING LEGS AND LEVELING REACH-IN MODELS ......................4
MOUNTING ROLL-IN MODELS IN PLACE AND LEVELING....................4
INSTALLING CASTERS AND LEVELING REACH-IN MODELS...............5
INSTALLING CONDENSATE EVAPORATOR ..........................................6
REMOVAL OF DOORS AND DOOR ADJUSTMENT ................................ 7
REMOVAL OF GRILL ................................................................................ 8
INITIAL CLEANING PROCEDURE ......................................................................8
START-UP PROCEDURE ....................................................................................9
ELECTRICAL CONNECTIONS .................................................................9
115 VOLT, 60 HZ, 1 PHASE CONNECTION............................................. 9
208-230 VOLT, 60 HZ, 1 PHASE CONNECTION......................................9
SPECIAL VOLTAGE CONNECTIONS ....................................................10
START-UP CHECKLIST ..........................................................................10
REMOTE APPLICATIONS....................................................................... 10
OPERATION....................................................................................................... 11
THERMOMETER CALIBRATION ............................................................ 11
CALIBRATION CHECK .................................................................11
DIAL THERMOMETER .................................................................11
DIGITAL THERMOMETER ...........................................................12
REFRIGERATOR SYSTEM AND ADJUSTMENT ...................................13
FREEZER SYSTEM AND ADJUSTMENT ...............................................14
DEFROST OPERATION ............................................................... 15
EVAPORATOR ASSEMBLY.................................................................... 16
LOW-PROFILE,CEILING-MOUNT EVAPORATOR
ASSEMBLY ........................................................................16
INTERIOR REACH-IN ACCESSORIES................................................... 17
SHELVING INSTALLATION.......................................................... 17
OPTIONAL INTERIOR ACCESSORIES .......................................18
SAFETY PRECAUTIONS ........................................................................ 19
MAINTENANCE.................................................................................................. 20
PERIODIC CLEANING PROCEDURE..................................................... 20
SLIDING AND HINGED GLASS ..............................................................21
GENERAL PREVENTATIVE MAINTENANCE......................................... 21
PARTS AND SERVICE............................................................................ 22
TROUBLESHOOTING AND SERVICING GUIDE .............................................. 22
WIRING DIAGRAMS ..........................................................................................26
RECEIVING YOUR NEW MODEL
Congratulations on your recent purchase of Continental Scientific superior
laboratory/pharmacy 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 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 all of the
material in order to become more familiar with your equipment and its operation,
and enjoy optimum performance.
All automatic defrost freezers have an energy-saving fan
Important Note:
delay control to prevent the interior fans from operating until the evaporator coil
becomes chilled. Therefore, on initial start-up, the fans will not turn on immediately.
This is a normal mode of operation.
to reach its operating temperature (approximately 20 minutes).
No floor drains or plumbing connections are required since all models are
completely self-defrosting and use an automatic defrost condensate water
evaporating system (see "condensate evaporator installation" under installation
and location section).
All cabinets must be given sufficient time to reach normal operating temperature
before placing any product inside. For refrigerators, approximately 2 hours of
operation are required to lower the cabinet temperature to 4 degrees c. Freezers
require approximately 4 hours of operation to lower the cabinet temperature to -20
degrees c (see "operation" section for further information).
Never
Doing so will result in poor performance, decrease in efficiency and possible need
for service to de-ice evaporator.
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
overload top shelf with product so as to block or restrict cabinet airflow.
Allow sufficient time for the evaporator coil
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and sanitation, all models are listed under the reexamination service of
underwriter's laboratories.
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 up to four (4) bolts securing the cabinet to the wooden skid. The bolts
are located at each end on the underside of the skid. In order to remove these
bolts it is advisable to tilt the cabinet backwards and place wooden blocks at each
end in order to hold it in its tilted position. 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 should never be moved without dollies or rollers to avoid damage to
the cabinet bottom or floor.
Important Note:
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 condensate drain tubing and
also to allow provision for your hands in order to set it in its upright position without
inflicting damage to the cabinet.
three (3) hours after cabinet is set upright from being on its back as damage
could result to the compressor.
Do not under any circumstances lay your new model on its
Do not plug in and operate model for at least
INSTALLATION 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 grill can be easily removed (see instructions outlined in "removal
of doors" and "removal of grill" sections).
VENTILATION
The final location site of your air cooled refrigerator or freezer 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 as well as direct sunlight where temperatures
can be in excess of 100 degrees f. Also, do not select a location in an unheated
room or area where temperatures may drop below 55 degrees 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 effect its operating
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efficiency.
Important Note:
condensing unit,
side and back of the cabinet must be provided
special venting or air supply ducts must be installed by the installer for this
purpose. Do not
way, and never
compartment. These rules are essential for maximum cooling capacity and long
life of refrigeration parts.
To assure sufficient air supply and circulation to the
a minimum clearance of 12" above the grill and 3" on each
(see figure 1). If necessary,
at any time obstruct the grill area in front of the cabinet in any
place or store anything on top of the cabinet machine
FIGURE 1
MINIMUM CLEARANCE DIMENSIONS
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 or roll-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
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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.
INSTALLING LEGS AND LEVELING REACH-IN MODELS
Your new reach-in model is supplied with adjustable type legs for leveling
purposes. Each single and two section model has four leg mounting holes on its
case bottom, and three section models have six leg mounting holes. Legs are
packed in the accessory carton from which they must be removed and installed on
the cabinet case bottom (see figure 2). In order to install the legs, carefully tip the
cabinet rearward adding four (4) 2" wood blocks underneath and simply screw the
threaded leg studs into the case bottom front leg holes. Repeat this procedure by
tilting the cabinet in the opposite direction and install the remaining legs. Make
sure the legs are tightened extremely well or the entire model will sway or rock with
each opening or closing of the doors, possibly causing damage to the case
bottom. This procedure should be performed close to the final installation site and
allow access to the rear of the cabinet for condensate evaporator installation (see
"condensate evaporator installation" under installation and location section).
To assure your cabinet is level, all legs are equipped with bullet-type leveling bolts.
These bolts can be turned by hand or by wrench, clockwise or counterclockwise to
level the cabinet.
FIGURE 2
LEG INSTALLATION
MOUNTING ROLL-IN MODELS IN PLACE AND LEVELING
Your new roll-in model is designed and constructed to be mounted directly on the
floor without legs or casters. The floor
should be sealed to the floor around its entire perimeter. If the floor is not level, it
must be made level prior to mounting your roll-in model.
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be level and the base of the cabinet
must
Your roll-in model comes with one cart ramp per door opening. To install the
ramp(s), simply open the cabinet door and position the ramp slots onto the screws
located along the cabinet bottom front. If the door wiper rubs along the ramp to the
extreme where the door will not self-close, you will need to adjust the door (see
"door adjustment" section) or level the cabinet as explained above.
Important Note:
model is perfectly level for proper operation.
adverse conditions will become apparent:
1. The door(s) will not be properly aligned and consequently will not provide a
good seal. Roll-in door wiper(s) may bind.
2. Your 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 product 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.
It is extremely important that your new reach-in or roll-in
If it is not
level, the following
INSTALLING CASTERS AND LEVELING REACH-IN MODELS
If you wish to install casters on your new reach-in model, follow the steps above for
"installing legs" to install the casters, making sure again that the casters are
tightened extremely well (see figure 3). If the casters are not installed tightly, the
cabinet will sway or rock with each opening or closing of the doors, possibly
causing damage to the case bottom.
To assure that your cabinet is level, caster cups must be installed under the
casters which need leveling. Caster cups are not provided with your new model but
can be purchased at most hardware or furniture stores.
casters by unscrewing them from the case bottom as this will cause damage
to the cabinet bottom and leg hole threads, voiding all warranties.
Do not attempt to level
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FIGURE 3
CASTERS MUST BE TIGHT TO CABINET BOTTOM
INSTALLING CONDENSATE EVAPORATOR
No floor drains or plumbing connections are required since all models use an
automatic condensate water evaporating system. All models are supplied with an
electric condensate evaporator pan and mounting bracket packed in the accessory
carton. To install the condensate pan on models, remove both mounting screws
located on the bottom of the cabinet back and install the mounting bracket on the
case bottom as shown in figure 4. Slide the condensate pan onto the bracket,
install the drain tube into the pan making sure it is not blocked or kinked, and plug
the ten foot power cord into the receptacle labeled "vaporizer" located on the case
top electrical box.
Important Note:
pan is plugged into its correct receptacle labeled "vaporizer" and that the
condensing unit is plugged into its correct receptacle labeled "condensing
unit".
It is extremely important to be sure that the condensate
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FIGURE 4
CONDENSATE EVAPORATOR INSTALLATION
REMOVAL OF DOORS AND DOOR ADJUSTMENT
During installation, it may become necessary to remove the cabinet doors to
facilitate passage through narrow doorways or hallways. To remove a door, pry off
all hinge covers using a sharp tool or knife (see figure 5). Swing the door to the
open-door position (90 degrees) and carefully lift the door upward, removing the
door from the hinge bodies. If it is necessary to remove the hinge bodies from the
cabinet face, be extremely careful not to lose the light switch pin located inside all
top hinge bodies. To reinstall the door, reverse the above procedure.
All doors have been aligned at the factory, however vibration during transportation
may cause doors to shift and realignment may be necessary.
require realignment, proceed as follows:
1. Pry off all hinge covers using a sharp tool or knife.
2. For each door, loosen the screws which secure the hinge bodies to the cabinet
face and slide the door into alignment. Hold the door firmly in place and tighten
all screws securely.
If the door gasket(s) do not seal properly to the cabinet face and there are
gaps between the gasket and the face on the hinge edge, proceed as
follows:
1. For each door, loosen all screws which are directed into the edge of the door
and push the door towards the cabinet eliminating the gap. Hold the door
firmly in place and tighten all screws securely.
2. Replace all snap-on hinge covers.
If the door(s)
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FIGURE 5
DOOR ADJUSTMENT AND REMOVAL
REMOVAL OF GRILL
To remove the grill, loosen all four (4) grill mounting screws located on the
backside of the grill one or two turns. Simply lift grill up off of its mounting screws
and out. To replace the grill, line up the grill mounting screws with the keyhole slots
located on the cabinet body, push in on the grill and down.
Important Note:
front grill cannot be completely removed from the cabinet without first removing the
thermometer bulb from inside the cabinet. However, enough capillary tubing and/or
wiring cable has been provided to allow the grill to be laid across the top of the
cabinet after it has been removed. Take care not to damage the capillary tubing
when handling the grill.
If it is necessary to remove the thermometer bulb from inside of the cabinet, first
locate the thermometer bulb cover and remove the thumbscrews securing it in
place. The thermometer bulb cover is located on the interior top left corner towards
the front of the cabinet. Once the cover is removed, carefully grasp the bulb and
push it back through the cabinet hole. The thermometer bulb and grill can now be
removed from the cabinet. When reinstalling the thermometer bulb, be sure to
replace the permagum sealant around the hole after inserting the bulb.
If the model is provided with a digital or dial thermometer, the
INITIAL CLEANING PROCEDURE
Prior to start-up and before placing any product inside of your new reach-in or rollin laboratory model, the interior of the cabinet should be thoroughly cleaned.
Washing with a mild soap and warm water solution is recommended for cleaning
the aluminum 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:
chemicals when cleaning your model. Failure to dry the interior surfaces after
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Never use harsh detergents, cleaners, scouring powders or
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