VWR 10ECEEVWA Owner's manual

VWR General Purpose, Explosion-
Proof and Flammable Materials
Storage Laboratory Refrigerators and
Freezers
Installation and Operation
057-658-00 • Rev C • February 2019

IMPORTANT Read this instruction manual. Failure to follow the instructions in this manual can result in 
damage to the unit, injury to operating personnel, and poor equipment performance.
CAUTION All internal adjustments and maintenance must be performed by qualified service personnel.
Material in this manual is for informational purposes only. The contents and the product it describes are 
subject to change without notice. VWR makes no representations or warranties with respect to this manual.
In no event shall VWR be held liable for any damages, direct or incidental, arising from or related to the use of
this manual.
© 2019 VWR Inc. All rights reserved.
For your future reference and when contacting the factory, have the following information readily available.
It will be found on the dataplate attached to your unit.
Model Number:
Serial Number:
The following information, if available, is helpful for contacting the factory.
Date Purchased:
Purchase order number:
Source of Purchase:
(manufacturer or specific agent/representative organization)

Contents
Models......................................................................... 1
Safety Information........................................................ 2
Alert Signals ............................................................ 2
Intended Use ............................................................... 3
Explosion-Proof Refrigerator & Freezer......................... 4
Flammable Materials Storage 
Refrigerators & Freezers............................................... 6
General Purpose Refrigerator & Freezer ....................... 7
Unpacking and Inspection............................................ 8
Shipping Carton ....................................................... 8
Visible Loss or Damage............................................ 8
Concealed Loss or Damage ..................................... 8
Operating Standards.................................................... 9
Installation.................................................................... 10
Selecting a Location................................................. 10
Leveling the Unit....................................................... 10
Electrical Connection................................................ 10
Be Advised............................................................... 10
How to Seal Killark® Box Conduit............................ 11
Electric Connection Check Points............................. 12
Operation..................................................................... 13
Start-Up Procedure.................................................. 13
Restart Procedure.................................................... 13

How to Save Energy................................................. 13
Safety Tips ............................................................... 13
Maintenance ................................................................ 14
Cleaning the Unit...................................................... 14
Cleaning Interior/Exterior/Door Gaskets.................... 14
Cleaning the Condenser........................................... 14
Troubleshooting........................................................... 15
Wiring Diagram ............................................................ 16
End of Life Care ........................................................... 17
Warranty ...................................................................... 18

GP, Explosion-Proof and FMS Lab Refrigerators and Freezers Models | 1
Models
The table below shows the units covered in this operation and installation manual by model number.
Table 1. Applicable Models
Refrigerators and Freezers
Explosion-Proof 10ECEEVWA
Flammable Materials Storage 10FCEEVWA
Standard Series 10LCEEVWA

2 | Safety Information GP, Explosion-Proof and FMS Lab Refrigerators and Freezers
Safety Information
Your satisfaction and safety are important to VWR and a
complete understanding of these units is necessary to attain
these objectives.
As the user of these products, it is your responsibility to
understand its proper function and operational
characteristics. This instruction manual should be thoroughly
read and all operators given adequate training before
attempting to place these units in service. Awareness of the
stated cautions and warnings, and compliance with
recommended operating parameters – together with
maintenance requirements – are important for safe and
satisfactory operation. The units should be used for its
intended application; alterations or modifications will void the
Warranty.
These products are not intended, nor can they be used, as a
sterile or patient connected device. In addition, these units are
not designed for use in Class I, II or III locations as defined by
the US National Electrical Code, unless otherwise noted.
Alert Signals
ON
OFF
Safety Alert: Important operating instructions.
To reduce the risk of injury or poor performance
of the unit. Read the user manual before putting
the equipment into operation.
WARNING: Indicates an immediately hazardous
situation, which if not avoided, will result in death
or serious injury.
CAUTION: Indicates an immediately hazardous
situation, which if not avoided, may result in
minor to moderate injury.
WARNING: Avoid contact with cold freezer
surfaces potential for cold burns or skin sticking
to cold surfaces.
WARNING: Use of this symbol involves risk of
electric shock.
Do not modify or use power supplies other than
OEM equipment. Connection of the power
supply may require a properly grounded
receptacle. Potential for electrical shock or
equipment damage exists if precautions are not
followed.
Note: Notes alert you to pertinent facts and conditions.
DANGER RISK OF CHILD ENTRAPMENT
Before you throw away your old refrigerator or
freezer:
• Take off doors.
• Leave the shelves in the place so that
children may not easily climb inside.
If the equipment is used in a manner not
specified by the manufacturer, the protection
provided by the equipment may be impaired.

GP, Explosion-Proof and FMS Lab Refrigerators and Freezers Intended Use | 3
Intended Use
The General Purpose refrigerator/freezer described in this
manual is for professional use only.
The Flammable Materials Storage and Explosion-Proof
refrigerators/freezers described in this manual are for use in
the storage of flammable inventory/samples. These models
have been listed to the appropriate standards.
These products are intended for use in research for the
storage of samples or inventory in the following temperature
ranges:
Refrigerators 33.8°F to 53.6°F (+1°C to +12°C)
Freezers -4°F to 10.4°F (-20°C to -12°C)
These units are not considered medical devices and have
therefore not been registered with a medical device regulatory
body (e.g. FDA): that is, these have not been evaluated for the
storage of samples for diagnostic use or for samples to be
re-introduced to the body.
Note: Do not store corrosive materials in these units. Any
damage which occurs due to storage of corrosives will not be
covered under warranty claims.
Corrosive Materials Requiring Refrigerated or Frozen Storage:
• Only use models rated as Corrosion Resistant.
• Corrosion Resistant does not mean Corrosion Proof –
Care in storage is still required.
• Store only corrosive reagents/samples which truly need
reduced temperature storage.
• Flammable corrosive materials require Flammable
Materials Storage or Explosion-Proof models labeled for
the storage of corrosives
• Containers must be wiped clean of moisture and
chemical residue before being introduced into the unit
and upon return from use.
• Containers must be sealed with either vinyl tape or
Parafilm®.
• Reagents/samples which release HX (X= F, Cl, Br, I) on
contact with moisture (e.g. Acyl halides, Organosilyl
halides etc.) are particularly damaging to metals.
• Volatile amines will react with HX depositing salts which
will lead to corrosion of metal surfaces.
• Volatile organic acids can exacerbate metal surfaces
already compromised, be sure these are securely sealed.
• Refrigerated compartments are cool or cold areas but
they are not to dry seal your reagents and samples.
• Bleach solutions release chlorine gas which can react
with other volatiles in the cooling chamber or directly
attacks metal surfaces.
• Periodically clean the interiors, clean up spills or leaking
containers.
• Failure to take precautionary actions may lead to damage
not covered by warranty claims.
Parafilm® is a registered trademark of Bemis Company,
Oshkosh, WI.

4 | Explosion-Proof Refrigerator & Freezer GP, Explosion-Proof and FMS Lab Refrigerators and Freezers
Explosion-Proof Refrigerator &
Freezer
Conventional refrigerators and freezers are not suitable for
storing flammable materials. Such units have components in
their electrical and refrigeration systems that can trigger
explosions of flammable air-vapor mixtures inside the unit
and/or in the immediate surrounding area.
VWR Scientific offers the largest explosion-proof selection in
the industry, including single and 2-door upright refrigerator
undercounter refrigerators.
Motors and thermostats are designed to prevent the arcing
which can ignite a flammable air-vapor mixtures, In addition,
each unit has wiring, splices, a thermostat, a relay and a
compressor motor safely housed within an explosion-proof
enclosure of construction suitable for use in Class I, Groups C
and D. This means that things like the surface temperature of
compressors will remain below the flashpoint of any
flammable material likely to be found in Class I, Groups C and
D, Class I Zone 1 and Group IIB locations.
All models have heavy-gauge, rigid, braced-steel construction
with a durable enamel finish. Interiors have epoxy enamel or
ABS plastic construction. Each unit is insulated throughout for
energy-efficient operation.
These VWR Scientific units will prevent potentially destructive
explosions in any facility by meeting the standards established
by Underwriters’ Laboratory, Inc., OSHA and National Fire
Protection Association for storage of hazardous materials.
Explosion-proof models are specifically designed and
engineered to prevent the triggering of an explosion inside or
outside of the unit in a Class I, Groups C and D hazardous
material environment. These models feature stainless steel
refrigeration components that are more resistant to attack
from corrosive vapors than are aluminum or epoxy-coated
aluminum.
It is important to note that Explosion-Proof models must be
connected to the power supply source by rigid metal conduit
or mineral-insulated cable with proper fittings suitable for
Class I, Groups C and D hazardous locations.In addition, the
wires inside the conduit must be sealed.
For Explosion-Proof units where flammable
materials are stored in the cooling chamber, the
cooling chamber is considered a Class I Div1 or
Class I Zone 1 hazardous location. Any
monitoring devices placed in the cooling
chamber must have an intrinsically safe rating
from an appropriate certification body, such as
UL, CSA, FM etc. (this includes battery or solar
powered devices).
Thermocouples for building monitoring systems must be
wired through an electrical barrier designed to provide
isolation against voltage and current spikes, which could
cause a spark resulting in fire or explosion. It is the your
responsibility to meet these requirements. VWR cannot assist
with the selection of devices, recommend, approve or design
any device or monitoring circuit.
MODEL 10ECEEVWA - 10.1 Cu. ft.
23.63" Wide, Two-door Refrigerator/Freezer
Features:
• Refrigerator: 3 Adjustable Shelves
• Freezer: 1 Adjustable Shelf
• Hydraulic thermostat
• Adjustable natural air-flow vent
•Manualdefrost
• ABS plastic interior
• White color
10ECEEVWA
Refrigerator Chamber
Dimensions
H x W x D inches (cm)
38.25" x 19.75" x 18.25"
(97.2 x 50.2 x 46.4 cm)
Freezer Chamber
Dimensions 
H x W x D inches (cm)
18.25" x 18" x 11.25"
(46.3 x 45.7 x 28.6 cm)
Exterior Dimensions
H x W x D inches (cm)
59.75" x 23.63" x 28.6"
(151.77 x 60 x 76.2 cm)
Electrical Characteristics 
Volts/Hz, Amps 115/60, 1.9
Refrigerator Temp. Range
°F (°C)
33.8° to 53.6°
(1° to 12°)
Freezer Temp. Range 
°F (°C)
-4° to 10.4°
(-20° to -12°)
Net Weight lbs. (kg) 120 (55)
Shipping Weight lbs. (kg) 150 (68)
Note: Amps listed are at normal run mode, starting amps
may be higher.

GP, Explosion-Proof and FMS Lab Refrigerators and Freezers Explosion-Proof Refrigerator & Freezer | 5
VWR Scientific reserves the right to change specifications
without prior notice.
Explosion-Proof units require being hard wired into the
building electrical system and therefore require a qualified
electrician to install as per the “local electrical requirements
and NEC Standard” or “Canadian Electrical Standard”.
Note: If any questions pertaining to electrical safety arise,
please refer to article 501 of the US National Electrical Code.

6 | Flammable Materials Storage Refrigerators & Freezers GP, Explosion-Proof and FMS Lab Refrigerators and Freezers
Flammable Materials Storage
Refrigerators & Freezers
These VWR Scientific units will prevent potentially destructive
explosions in any facility by meeting the standards established
by Underwriter’s Laboratory, Inc. OSHA and National Fire
Protection Association for storage of hazardous
materials.They also are designed to comply with National Fire
Protection Association Standards Nos.45 and 99, as well as
OSHA Article No. 29 CFR 1910.307. VWR Scientific
Flammable Materials Storage Refrigerators/Freezers are
manufactured for safe, cold storage of volatile materials.
Refrigerators/Freezers will prevent an explosion from
occurring inside the unit.These units have no internal electrical
components that could trigger an explosion of hazardous
materials inside the unit. (They are NOT designed for use in
class I, Groups C and D environments — for these locations
use a VWR Scientific Explosion-Proof Refrigerator.) However,
FMS units are not suitable for use in Class I, Group C and D
environments.
This complete line includes single and 2-door upright
refrigerators and freezers, horizontal chest freezers, and
under counter refrigerators.
These units are ideal for storing cyclopropane, ethyl ether,
ethylene, acetone, alcohol, benzene, butane,
gasoline,hexane, lacquer solvent vapors, naphtha, natural gas
or propane along with many other potentially hazardous
materials.
All cabinets have heavy-gauge steel construction with a
durable exterior finish of epoxy enamel.A well insulated
cabinet and tight sealing magnetic door prevent air leaks
along with helping to lower operating costs.The interior is
made of porcelain enameled steel or ABS plastic.
VWR Scientific offers the largest selection of FMS units. All
models are delivered with 3-wire line cord and molded plug.
All 115-volt FMS models are UL listed.
WARNING: For Flammable Materials Storage
units where flammable materials are stored in the
cooling chamber, the cooling chamber is
considered a Class I Div 1 or Class I Zone 1
hazardous location. Any monitoring devices
placed in the cooling chamber must have an
intrinsically safe rating from an appropriate
certification body, such as UL, CSA, FM etc. (this
includes battery or solar powered devices).
Thermocouples for building monitoring systems must be
wired through an electrical barrier designed to provide
isolation against voltage and current spikes, which could
cause a spark resulting in fire or explosion. It is the your
responsibility to meet these requirements. VWR cannot assist
with the selection of devices, recommend, approve or design
any device or monitoring circuit.
MODEL 10FCEEVWA - 10.1 cu. ft.
23.63" Wide, Two-door Refrigerator/Freezer
Features:
• Refrigerator: 3 Adjustable Shelves
• Freezer: 1 Adjustable Shelf
•Manualdefrost
• ABS plastic interior
• White color
10FCEEVWA
Refrigerator Chamber
Dimensions
H x W x D inches (cm)
38.25" x 19.75" x 18.25"
(97.2 x 50.2 x 46.4 cm)
Freezer Chamber Dimensions 
H x W x D inches (cm)
18.25" x 18" x 11.25"
(46.3 x 45.7 x 28.6 cm)
Exterior Dimensions
H x W x D inches (cm)
59.75" x 23.63" x 28.6"
(151.77 x 60 x 76.2 cm)
Electrical Characteristics 
Volts/Hz, Amps 115/60, 1.9
Refrigerator Temp. Range
°F (°C)
33.8° to 53.6°
(1° to 12°)
Freezer Temp. Range
°F (°C)
-4° to 10.4°
(-20° to -12°)
Net Weight lbs. (kg) 120 (55)
Shipping Weight lbs. (kg) 150 (68)
Note: Amps listed are at normal run mode, starting amps
may be higher.
VWR Scientific reserves the right to change specifications
without prior notice.

GP, Explosion-Proof and FMS Lab Refrigerators and Freezers General Purpose Refrigerator & Freezer | 7
General Purpose Refrigerator &
Freezer
These are general purpose units available in all refrigerator and freezer.
MODEL 10LCEEVWA -10.1 Cu. ft.
23.63" Wide, Refrigerator and Freezer,
Features:
•Refrigerator: 3 Adjustable Shelves
• Freezer: 1 Adjustable Shelf
• Manual defrost
• White color
10LCEEVWA
Refrigerator Chamber Dimensions 
H x W x D inches (cm)
38.25" x 19.75" x 18.25"
(97.2 x 50.2 x 46.4 cm)
Freezer Chamber Dimensions 
H x W x D inches (cm)
18.25" x 18" x 11.25"
(46.3 x 45.7 x 28.6 cm)
Exterior Dimensions
H x W x D inches (cm)
59.75" x 23.63" x 28.6"
(151.77 x 60 x 76.2 cm)
Electrical Characteristics 
Volts/Hz, Amps 115/60, 1.9
Refrigerator Temperature Range
°F (°C)
33.8° to 53.6°
(1° to 12°)
Freezer Temperature Range
°F (°C)
-4° to 10.4°
(-20° to -12°)
Net Weight lbs. (kg) 120 (55)
Shipping Weight lbs. (kg) 150 (68)
Note: Amps listed are at normal run mode, starting amps may be higher.

8 | Unpacking and Inspection GP, Explosion-Proof and FMS Lab Refrigerators and Freezers
Unpacking and Inspection
CAUTION: DO NOT REMOVE, Under any
circumstance, the grounding prongs from the
3-prong power cord supplied with all units.
CAUTION: DO NOT USE electrical extension
cords that may result in voltage loss and possible
hazardous operation.
Shipping Carton
This should be inspected upon delivery. When received,
carefully examine for any shipping damage before unpacking.
If damage is discovered, the delivering carrier should both
specify and sign for the damage on your copy of the delivery
receipt.
Visible Loss or Damage
Note any external evidence of loss or damage on the freight
bill, or express receipt, and have it signed by the carrier’s
agent. Failure to adequately describe such external evidence
of loss or damage may result in the carrier’s refusing to honor
your damage claim. The form required to file such a claim will
be supplied by the carrier.
IMPORTANT: Failure to request an inspection of damage
within a few days after receipt of shipment absolves the
carrier from any liability for damage.You must call for a
damage inspection promptly.
Concealed Loss or
Damage
Concealed loss or damage refers to loss or damage, which
does not become apparent until the merchandise has been
unpacked and inspected. If either occur, make a written
request for the carrier’s agent within 15 days of the delivery
date; then file a claim with the carrier since the damage is the
carrier’s responsibility.
If you follow the above instructions carefully, we will guarantee
our support of your claim to be compensated for loss from
concealed damage.
DO NOT – FOR ANY REASON – RETURN THIS UNIT
WITHOUT FIRST OBTAINING AUTHORIZATION.

GP, Explosion-Proof and FMS Lab Refrigerators and Freezers Operating Standards | 9
Operating Standards
The units described in this manual are classified for use as
stationary equipment in a Pollution Degree 21and Over
voltage Category II environment.
These units are designed to operate under the following
environmental conditions:
• Indoor use
• Altitude up to 2000 m (6512 feet)
• Maximum relative humidity 80%, non-condensing
• Temperatures: 59°F to 90°F (15°C to 32°C)
• Main supply voltage fluctuations should not exceed by
±10% of the nominal voltage.
1. Refer to IEC 6641

10 | Installation GP, Explosion-Proof and FMS Lab Refrigerators and Freezers
Installation
Selecting a Location
Choose a location for the refrigerator/freezer that will provide
a clearance of 4 in. at the top, 8 in. at the rear and 3 in. at
each side.
Appropriate electrical power must be available. Locate the
refrigerator/freezer within eight feet of the power outlet so that
no extension cord is required. Attach the refrigerator/freezer
to the facility’s electrical supply as directed by the National
Electrical Code.
Leveling the Unit
This refrigerator/freezer must be level in order to provide
adequate condensate drainage as well as proper door
alignment and operation. The refrigerator/freezer should be in
its final operating location and set so that it is firmly positioned
on the floor.
Electrical Connection
Determine the total amount of current presently being used by
other apparatus connected to the circuit that will be used by
this refrigerator. It is critical that this added current demand
and other equipment on this circuit not exceed the rating of
the fuse or circuit breaker in use.
The frequency and nominal voltage requirements for the unit
are specified on the data plate, which is located on the door’s
exterior. Only supply this unit with an electrical source that
meets these requirements. Low line voltage is often the cause
of service complaints. With the unit running, check that the
line voltage is within ±10% of that specified on the data plate.
CAUTION: Be sure the voltage supplied to the
refrigerator/freezer is equal to that specified on
the data plate.
WARNING: For personal safety, this unit must
be properly grounded before use.
Flammable Materials Storage and General Purpose units
must be connected to a grounded outlet matching the
nameplate and /or the information furnished in this manual. If
you are not sure about the outlet, you should contact a
qualified electrician for assistance. Explosion-Proof units must
be hardwired by a qualified electrician.
Explosion-Proof unit should always be connected to a
dedicated power source.
WARNING: DO NOT REMOVE, under any
circumstance, the grounding prongs from the 
3-prong power cord supplied with all units.
WARNING: DO NOT USE electrical extension
cords, it may result in voltage loss and possible
hazardous operation.
Be Advised
WARNING: Storage by user of any materials in
the product that may cause a deterioration of the
product shall be deemed to constitute abnormal
and improper usage of the product for purposes
of this warranty.
WARNING: Before connecting the final power
supply, check the electrical characteristics of the
unit nameplate to see that it is in agreement with
the power supplied. In addition, power should be
wired to the unit according to the electrical
schematic and all applicable codes. Only
qualified electricians should work on the
electrical portion of any unit installation.
CAUTION: Solutions used to clean coils or
neutralize bacteria growth must not be corrosive
to metals (enamel-coated steel) and materials
used in the maintenance of this equipment—
damage can result: use a soft cloth and warm
water to clean
WARNING: RISK OF CHILD ENTRAPMENT
Before you discard your old refrigerator or
freezer:
• Remove door(s).
• Leave the shelves in place so that children
may not easily climb inside.

GP, Explosion-Proof and FMS Lab Refrigerators and Freezers Installation | 11
How to Seal Killark® Box
Conduit
To Seal Killark® Box Conduit with Fiber and Sealing
Compound to Help Protect Against Explosions (Explosion-
Proof Units Only):
The purpose of the procedure that follows is to build fiber
rope dams on the left and right hubs of the horizontal conduit.
The fiber rope damns will surround conduit wiring that is
housed inside the horizontal conduit. When both the left and
right fiber rope dams have been pressed into place, sealing
compound is poured between the two and forms into an
airtight plug.
All of this is done in order to prevent the very real threat of gas
entering the Killark box and a resulting serious explosion. After
the unit wires have been pulled through the horizontal conduit
the following procedure is required:
• Turn power off at the circuit breaker before proceeding.
• Place a small amount of sealing compound granules,
enclosed, into a clean mixing vessel. Add small amounts
of water while stirring until a thick paste is formed, then
carefully continue adding smaller amounts of water until a
thick gravy consistency is achieved—NOT WATERY.
Discard any material that becomes too stiff to use. Never
attempt to restore workability by stirring in more water.
• Locate silver Killark box, back/top-center of unit.
• Unscrew conduit domed-cover.
Unscrew and Remove Cover Conduit
Horizontal
Left Hub Right Hub
Conduit
Opening
Conduit Domed-Cover
Note: KILLARK® is a registered trademark of Hubbell
Incorporated, Shelton, CT, USA.
Figure 1. Sealing the Killark Box
Note: Wires must be kept separated as shown in the
Figure 2.
Left Hub Right Hub
Wiring
Figure 2. Horizontal Conduit, Cutaway
• Insert fiber rope material down into horizontal conduit
opening. Pressing down firmly, work the material into the
left hub and—most importantly—being sure the material
COMPLETELY SURROUNDS THE WIRING, from the top
to the bottom, completely blocking this end of the
horizontal conduit.
Figure 3. Fiber rope material in left hub
• Insert fiber rope material down into horizontal conduit
opening. Pressing down firmly, work the material into the
right hub and—most importantly—being sure the
material COMPLETELY SURROUNDS THE WIRING, from
the top to the bottom, completely blocking this end of the
horizontal conduit.
Figure 4. Fiber rope material in right hub

12 | Installation GP, Explosion-Proof and FMS Lab Refrigerators and Freezers
• Pour sealing compound down in between the two fiber
rope dams filling the remaining space. Pour slowly, being
careful not to trap air bubbles. Immediately wipe off any
spilled sealing compound.
Figure 5. Adding sealing compound
• Screw conduit domed-cover back onto conduit opening.
Note: Initial setup of sealing compound will occur in
approximately 30 minutes. However, the sealing compound
requires a minimum of 8 hours above 32ºF (0ºC) to develop
sufficient strength to withstand explosions.
Note: Wires must be kept separated as shown in the figure
before addition of the sealing compound.
Electric Connection Check
Points
• Have proper connections been made at the junction
box?
• Is the junction box lid fastened tightly to the junction box?
• Are all wire connections secure?
• Are the service conductor sizes adequate to carry rated
load?
• Is the unit properly grounded?
• Is the unit connected to a properly fused branch circuit?

GP, Explosion-Proof and FMS Lab Refrigerators and Freezers Operation | 13
Operation
CAUTION: Do not use in the presence of
flammable or combustible materials or explosive
gases. Fire or explosion could result, causing
death or severe injury.
Start-Up Procedure
Rotate the control knob clockwise to lower the temperature
and counterclockwise raise it.
To check chamber temperature, place a dial thermometer on
a shelf in the center of the chamber. Initially, rotate the
temperature control knob to an arbitrary setting. Allow
approximately 2 hours for the temperature to initially stabilize.
Check the temperature and compare with the dial setting.
Adjust dial further to reach the desired operating temperature.
After chamber initially stabilizes, allow 1/2 to 1 hour for the
chamber temperature to stabilize after subsequent
temperature adjustments.
Because the markings on the dial do not indicate specific
temperatures, use them AS REFERENCE POINTS ONLY for
any future setting of the temperature.
If the room thermostat is turned below 60ºF at night, consider
setting the temperature control one step colder. It should be
left at this setting for the nighttime period; return temperature
control to original setting when the room thermostat is
returned to its normal setting.
Restart Procedure
If unit is unplugged or turned off, allow 3 minutes before
restarting or plugging it back in.
How to Save Energy
• Be sure to follow location suggestions as mentioned in
the section Installation.
• Wipe moisture from glassware or other materials before
placing them in a unit.
• Don't overcrowd the unit. Too many items can increase
electrical energy demand in order to keep everything
cool.
• Close the door as soon as possible in hot, humid
weather.
• Make certain that the door is closed tightly.
• As soon as frost has accumulated to 1/4", defrost.
• Keep containers covered, when possible, to reduce
moisture buildup.
• Set operating temperature no colder than necessary for
the items being refrigerated.
Safety Tips
• After a unit is in operation, do not touch the
cold surfaces, particularly when hands are
damp. Skin may adhere to the cold surfaces.
We recommend handling samples by
wearing gloves to avoid frost bite.
• Never disconnect your unit by pulling the
power cord. Always grip the plug securely
and pull straight out from the outlet.
• Do not use a power cord that shows cracks
or abrasions. Have a qualified electrician
repair or replace damaged cords
immediately.

14 | Maintenance GP, Explosion-Proof and FMS Lab Refrigerators and Freezers
Maintenance
CAUTION: When servicing the unit, disconnect
from the electrical power source.
CAUTION: Refer servicing to qualified
personnel.
Cleaning the Unit
Before beginning cleaning unit follow these instruction listed
below:
• Disconnect power cord from its outlet.
• Set the temperature control to the OFF position.
• The unit designs permit easy and rapid cleaning and
should not take more than a few minutes. Remember to
wear protective gloves to prevent frost bite, especially
when removing items from freezer units.
• Do not use abrasive scouring powders, waxes, solvents,
furniture polish, undiluted detergents or cleansers
containing petroleum products on the surfaces of units.
Cleaning Interior/Exterior/
Door Gaskets
A solution of mild soap/detergent and lukewarm water can be
used for cleaning the interior, exterior and door gaskets with a
soft, clean cloth. Rinse with clean water and dry thoroughly
before reconnecting and turning on the unit.
The cabinet interior should be cleaned frequently. Any spilled
liquid should be wiped off immediately since stains resulting
from some spills could be permanent if not quickly removed.
The most convenient time to clean the interior is after
defrosting.
Cleaning the Condenser
With forced-fan vented units, remove the screws that mount
the grill to the unit. Pull temperature control knobs straight
out—this will expose condenser for cleaning.
These surfaces may be warm to the touch. The condenser
should be cleaned before becoming clogged with dirt/dust.
Construction or other dirt causing environments may
significantly increase the required frequency. The condenser
should be cleaned at least once a year.
CAUTION: Never clean around the condensers
with your fingers. Some surfaces are sharp.

GP, Explosion-Proof and FMS Lab Refrigerators and Freezers Troubleshooting | 15
Troubleshooting
This table is intended to assist in resolving user-correctable Refrigerator problems by relating symptoms to their likely causes.
If service beyond the scope of this table is required, contact your nearest VWR Service Office.
Symptom Probable Cause Action
Unit does Not Run Unit Unplugged
Blown fuse or tripped circuit breaker
Temperature control knob is turned to OFF
Plug in Unit
Check fuse or circuit breaker at breaker box
Turn temperature control knob to ON
Runs Continuously Frost build up on refrigeration coils.
Dust or lint buildup on condenser
Door gasket worn out.


Temperature too low
Ambient temperature over 109ºF (43ºC)

Door opening frequency is high
Defrost unit
Clean the condenser with a dry brush or
vacuum
A leak around the door gasket will allow cold air
to escape. This causes unit to work harder than
necessary to maintain cold temperatures. 
Re-seat or replace the gasket if worn
This may cause unit to run continuously. Check
optimum running temperature
Is the ambient air over 109ºF (43ºC), or the units
located close to heat sources? If possible,
move to a different location
An unusually high frequency of door openings
and closings can increase operating load. Unit
will stabilize as these are decreased
Noise problems Contents of unit set too close and rattling
against each other
Hissing or gurgling noise is caused by
refrigerating fluid circulating
Unit is not level on floor
Fan noise
Rearrange contents as needed.
This is normal
Check the level of unit
Airflow can cause this. This is normal

16 | Wiring Diagram GP, Explosion-Proof and FMS Lab Refrigerators and Freezers
Wiring Diagram
THERMOSTAT
BLK
WHT 120V / BLK 240V
OVERLOAD PROTECTOR
RED
C
M S
M
S
I
C
RELAY
COMPRESSOR
Figure 6. Wiring diagram for 10FCEEVWA and 10ECEEVWA