Thermo Scientific 20ERCETSA Manuel utilisateur
Installation and Operation Manual
Thermo Scientific
Explosion-Proof
Refrigerators and Freezers
© 2015 Thermo Fisher Scientific. All rights reserved.
326805H01 Rev. D
Explosion-Proof Refrigerators
and Freezers
Model No:
20ERCETSA, 20EREETSA, 20EFEETSA
20EREETSV, 20EFEETSV, 20ERCETSV
Table of Contents
Safety Information.............................................................................................................................................. ..1
Alert Signals................................................................................................................................................ ..1
Intended Use ..................................................................................................................................................... ..3
Explosion Proof Refrigerators and Freezers.........................................................................................................4
Unpacking.......................................................................................................................................................... ..5
Visible Loss or Damage.................................................................................................................................5
Concealed Loss or Damage..........................................................................................................................5
Performance Characteristics................................................................................................................................6
Temperature Ranges.....................................................................................................................................6
Electrical Requirements............................................................................................................................... ..6
Installation.......................................................................................................................................................... ..7
Electrical...................................................................................................................................................... ..7
Be Advised................................................................................................................................................... ..7
Electrical Connection Check Points ...............................................................................................................8
Leveling the Unit.......................................................................................................................................... 12
Wiring.......................................................................................................................................................... 12
Electrical Connection................................................................................................................................... .13
Operation........................................................................................................................................................... 15
Initial Startup................................................................................................................................................ 15
Temperature Control....................................................................................................................................15
Condensate Disposal...................................................................................................................................15
Material Compatibility.................................................................................................................................. 15
Troubleshooting............................................................................................................................................... ...16
Maintenance..................................................................................................................................................... ..17
Cabinet Cleaning....................................................................................................................................... ..17
Condenser................................................................................................................................................. ..17
Warranty...............................................................................................................................................................18
Safety Tips................................................................................................................................................... 14
Explosion-Proof Refrigerator and Freezer Installation....................................................................................8
Selecting a Location......................................................................................................................................12
Shelves....................................................................................................................................................... .13
Door Seal.................................................................................................................................................... .14
Safety Information
Your satisfaction and safety are important to Thermo Scientific and a complete understanding of this unit is
necessary to attain these objectives.
As the ultimate user of this apparatus, 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 this unit 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 unit should be used for its intended application; alterations or modifications will
void the Warranty.
This apparatus is designed for use in Class I, II or III locations as defined by the 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.
DANGER Indicates an immediately hazardous situation, which if not avoided,
will result in death or serious injury.
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.
CAUTION (Without Safety Alert Symbol) indicates a situation that may result in
property damage.
Shock Hazard
Use of this equipment involves power supplies which convert line voltage
to low voltage power. 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.
Frost bite/ Low
Temperature
Avoid contact with cold freezer surfaces potential for cold burns or skin
sticking to cold surfaces.
1
(No Symbol)
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.
2
Safety Information
Intended Use
The Refrigerators/Freezers described in this manual are for
professional use only. These products are intended for use in
research for the storage of samples or inventory in the
following temperature ranges:
+1°C to +12°C
3
WARNING
Only Explosion Proof Units or
Flammable Material Storage Units
are to be used for the storage of
flammable inventory/samples.
These are not considered medical devices and have therefore not
been registered with a medical device regulatory body (e.g. FDA):
that is, it has not been evaluated for the storage of samples for
diagnostic use or for samples to be re-introduced to the body.
Corrosive Materials Requiring Refrigerated or Frozen Storage
Refrigerators
Freezers
For 20EFEETSV
-12°C to -20°C
-18°C to -28°C
• 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 Material 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
Refrigerators and Freezers
Overview
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.
The Authority having Jurisdiction (AHJ) determines if work areas are
designated as a hazardous location with respect to the presence of flammable
gases or vapors. Such locations are defined in (National Fire Protection
Agency) NFPA 70 Articles 500-501 and OSHA 29 CFR1910.307. Some of
these classified areas are expected to experience concentrations of flammable
gases and/or vapors at or above their lower flammability limits for extended
periods of time.
The construction of our explosion-proof units has been evaluated by
Underwriters Laboratories (UL)1 are suitable for use in classified areas
requiring Class I, Groups C and D* protected equipment. The electrical
components such as thermostats, wiring, splices, relays and compressor
motors on explosion-proof units are safely housed within explosion-proof
enclosures and conduit. Compressor surface temperatures have been
evaluated and determined to remain below the flash point of materials found in
Class I, Groups C and D. All models have heavy-gauge, rigid, steel
construction with a durable enamel finish. Interiors have epoxy coated steel
construction. Each unit is insulated throughout for energy-efficient operation.
These units are ideal for storing ethyl ether, acetone, alcohol, benzene,
gasoline, hexane, lacquer solvent vapors, naphtha, along with many other
potentially hazardous materials.
WARNING: For FMS and EXP 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 end
user's responsibility to meet these requirements. Thermo Fisher Scientific
cannot assist with the selection of devices, recommend, approve or design any
device or monitoring circuit.
*The notation Class 1, Groups C and D is an accepted abbreviation for Class 1
Div 1, Groups C and D; Class I Zone 1 Group IIB.
1 20xxxxTSV models are not evaluated or certified by UL.
Unpacking
Save all packing material if apparatus is received damaged.
This merchandise was carefully packed and thoroughly
inspected before leaving our factory.
Responsibility for its safe delivery was assumed by the carrier
upon acceptance of the shipment; therefore, claims for loss or
damage sustained in transit must be made upon the carrier by
the recipient as follows:
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 carrierʼs
agent. Failure to adequately describe such external evidence
of loss or damage may result in the carrierʼs refusing to honor
your damage claim. The form required to file such a claim will
be supplied by the carrier.
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. Should either occur, make a written
request for the carrierʼs agent within 15 days of the delivery
date; then file a claim with the carrier since the damage is the
carrierʼs responsibility.
If you follow the above instructions carefully, we will guarantee
our full support of your claim to be compensated for loss from
concealed damage.
DO NOT – FOR ANY REASON – RETURN THIS UNIT
WITHOUT FIRST OBTAINING AUTHORIZATION.
5
Performance Characteristics
Temperature Ranges
Freezer: -12° to -20°C (-4° to 10°F)
6
For 20EFEETSV: -18° to -28°C (-0.4° to -18.4°F)
Refrigerator: 1° to 12°C (34° to 54°F)
Electrical Requirements
For 20ERCETSA, 20EREETSA and 20EFEETSA
115 Volts ±10%, 60 Hz, 5.0 Amps
For 20EREETSV, 20EFEETSV and 20ERCETSV
230 Volts ±10%, 50 Hz, 2.0 Amps
Ce manuel convient aux modèles suivants
5
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