Cardinal Health CHH05RESA User manual

Flammable Material Storage
and Explosion Proof Laboratory
Refrigerators and Freezers
Installation and Operation
CHH05RESA
CHH05RFSA
CHH07CESA
CHH07CFSA

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 qualied service personnel.
Material in this manual is for informational purposes only. The contents and the product it describes are
subject to change without notice. Cardinal Health makes no representations or warranties with respect to
this manual. In no event shall Cardinal Health be held liable for any damages, direct or incidental, arising
from or related to the use of this manual.

Table Of Contents
1. Models ........................................................................................1
2. Safety Precautions .............................................................................2
3. Intended Use ..................................................................................3
4. Unpacking and Inspection ......................................................................4
Unpacking ..........................................................................................4
Visible Loss or Damage ..............................................................................4
Concealed Loss or Damage ..........................................................................4
5. Flammable Materials Storage Refrigerators and Freezers .........................................5
Overview ...........................................................................................5
Product Specication ................................................................................6
6. Explosion-Proof Refrigerators and Freezers ......................................................7
Overview ...........................................................................................7
Product Specication ................................................................................8
7. Operating Conditions...........................................................................9
8. Installation ...................................................................................10
Leveling the Unit .................................................................................. 10
Electrical Connection .............................................................................. 10
Reversing the Front Door (CHH05RESA &CHH05RFSA) ............................................... 10
Be Advised .........................................................................................11
How to Seal Killark® Box Conduit ....................................................................11
Electric Connection Check Points................................................................... 13
9. Start-Up Procedure ............................................................................14
Restart Procedure ................................................................................. 14
How to Save Energy ............................................................................... 14
Safety Tips ........................................................................................ 14
10. Maintenance.................................................................................15
Cleaning Interior/Exterior/Door Gaskets ............................................................ 15
Cleaning the Condenser ........................................................................... 15
Manual Defrost Procedure ......................................................................... 15
Transportation and Storage ........................................................................ 16
11. Troubleshooting .............................................................................17
12. Wiring Diagram ..............................................................................18
Flammable Materials Storage Refrigerators and Freezers ............................................ 18
Explosion-Proof Refrigerators and Freezers ......................................................... 19
13. End of Life Care ..............................................................................20
14. Warranty ....................................................................................21
15. Regulatory Compliance.......................................................................22
Product Safety .................................................................................... 22
Hydrocarbon Refrigerants ......................................................................... 22
16. Contact Information .........................................................................23

1
1. Models
The table below shows the units covered in this operation and installation manual by model number.
REFRIGERATORS AND FREEZERS
Explosion Proof CHH07CESA
Flammable Material Storage CHH07CFSA
REFRIGERATORS
Explosion Proof CHH05RESA
Flammable Material Storage CHH05RFSA

2
2. Safety Precautions
It is your responsibility to understand the product's proper function and operational characteristics. This
instruction manual should be thoroughly read and all operators given adequate training before installing
and operating the unit. 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 modications will void the
Warranty.
This product is not intended, nor can it be used, as a sterile or patient connected device.
In this manual, the following symbols and conventions are used.
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: Units are charged with hydrocarbon refrigerant (R600a). Only qualied service
personnel should service this unit.
WARNING: Risk of re or explosion. Flammable refrigerant used. To be repaired only by trained
service personnel. Do not puncture refrigerant tubing.
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 freezer:
• Take o doors.
• Leave the shelves in the place so that children may not easily climb inside.
WARNING: If the equipment is used in a manner not specied by the manufacturer, the protection
provided by the equipment may be impaired.
WARNING: Risk of re or explosion. Flammable refrigerant used. Do not use mechanical devices to
defrost the unit.
WARNING: No equipment that uses an open ame should be placed inside the refrigerator. This will
harm the unit, hamper functionality and compromise your safety.
WARNING: This product can expose you to chemicals including Nickel (Metallic) which is known to
the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov
Note: Nickel is a component in all stainless steel and some other metal components.

3
3. Intended Use
The Flammable Material Storage and Explosion Proof Refrigerators and Freezers described in this manual are
intended for storage of ammable inventory / samples. These products conform to the appropriate standards
by passing all requisite testing.
Explosion Proof Refrigerators and Freezers are intended to use in classied areas requiring Class I, Groups C
and D as dened in NFPA 70 Articles 500-501 and NFPA 45 and OSHA 29 CFR1910.307.
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:
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 are not considered as 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 reintroduced to the body.
WARNING: Only Explosion Proof or Flammable Material Storage Refrigerator and Freezer are to be
used for the storage of ammable inventory / samples.
WARNING: Flammable Material Storage Refrigerator and Freezer are NOT designed for use in
Class I, Groups C and D environments, which require an Explosion-Proof Refrigerators and Freezers.
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.
Follow site protocols to identify materials of corrosive nature.

4
3. Intended Use
4. Unpacking and Inspection
CAUTION: DO NOT REMOVE, under any circumstance, the grounding prongs from the 3-prong
power cord supplied with all FMS Refrigerator and freezer.
CAUTION: DO NOT USE electrical extension cords that may result in voltage loss and possible
hazardous operation.
Unpacking
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 le 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 le 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.

5
5. Flammable Materials Storage Refrigerators and Freezers
Overview
Conventional Refrigerators and Freezers are not suitable for storing ammable materials. Such units have
components in their electrical and refrigeration systems that can trigger explosions of ammable air-vapor
mixtures inside the unit.
Flammable Materials Storage (FMS) Refrigerators and Freezers are designed for use in locations, which are
classied by the Authority Having Jurisdiction (AHJ) as not hazardous. Under normal operating conditions the
build up or presence of ammable vapors will not occur in the environment external to the unit (Commonly
known as “Ordinary Locations”).
FMS Refrigerators and Freezers are NOT designed for use in Class I, Groups C and D environments,
which require an Explosion-Proof Refrigerators and Freezers.
This is not an Explosion Proof Refrigerator and Freezer but it has been designed to permit safe storage of
materials producing ammable vapors. Containers should be well-stoppered or tightly closed.
FMS Refrigerator and Freezer are designed and evaluated by Underwriters Laboratories (UL) to meet the
requirements of the National Fire Protection Association Standards Nos. 45 and 70. These units have no
internal electrical components that could trigger an explosion or re of hazardous materials inside the unit.
As this unit uses R600a refrigerant. This unit is intended for use in laboratories in commercial, industrial or
institutional occupancies dened in the safety standard for Refrigeration Systems ASHRAE 15.
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.
WARNING: For Flammable Materials Storage Refrigerator and Freezer where ammable 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 certication 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.
These could cause a spark resulting in re or explosion. It is your responsibility to meet these requirements.
.

6
Product Specication
MODEL CHH05RFSA - 5.5 Cu. ft. MODEL CHH07CFSA - 7.1 Cu. ft.
23.63" Wide, Under-counter Refrigerator 22" Wide, Refrigerator and Freezer
Features: Features:
• Three adjustable shelves
• Adjustable thermostat
• Magnetic door gasket
• White color
• Key lock
• One glass shelf
• Adjustable leveling legs in the front
• Refrigerator: 3 Adjustable Shelves
• Freezer: 1 Adjustable Shelf
• Manual defrost
• White color
CHH05RFSA CHH07CFSA
Refrigerator Chamber Dimensions
H x W x D inches (cm)
27.75" x 20" x 17.5"
(70.5 x 50.8 x 44.5 cm)
36.5" x 17.5" x 17"
(92.7 x 44.5 x 43.2 cm)
Freezer Chamber Dimensions
H x W x D inches (cm)
N/A 10.38" x 15.5" x 16"
(26.4 x 39.4 x 40.6 cm)
Exterior Dimensions
H x W x D inches (cm)
33.5" x 23.63" x 29"
(85 x 60 x 73.6 cm)
56.63" x 21.5" x 25.75"
(143.8 x 54.6 x 65.4 cm)
Electrical Characteristics
Volts/Hz, Amps
120/60, 0.8 115/60, 1
Refrigerator Temperature Range
°F (°C)
33.8° to 53.6°
(1° to 12°)
33.8° to 53.6°
(1° to 12°)
Freezer Temperature Range
°F (°C)
N/A -4° to 10.4°
(-20° to -12°)
Net Weight lbs. (kg) 80 (36.2) 89 (40.5)
Note: Amps listed are at normal run mode, starting amps may be higher.

7
6. Explosion-Proof Refrigerators and Freezers
Overview
The Authority Having Jurisdiction (AHJ) determines if work areas are designated as a hazardous location with
respect to the presence of ammable gases or vapors. Such locations are dened in (National Fire Protection
Agency) NFPA 70 Articles 500- 501, OSHA 29 CFR1910.307, and NFPA 45. Some of these classied areas are
expected to experience concentrations of ammable gases and/or vapors at or above their lower ammability
limits for extended periods of time.
The construction of our Explosion-Proof Refrigerator and Freezer has been evaluated by Underwriters
Laboratories (UL) and are suitable for use in classied 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 Refrigerator and Freezer are safely housed within explosion proof enclosures and conduit.
Compressor surface temperatures have been evaluated and determined to remain below the ash point
of materials found in Class I, Groups C and D. All models have heavy-gauge, rigid, steel construction with
a durable enamel nish. Interiors have epoxy enamel or ABS plastic construction. Each unit is insulated
throughout for energy-ecient operation.
These units are designed to meet the standards established by Underwriters’ Laboratory, Inc., OSHA and
National Fire Protection Association for storage of hazardous materials.
On Explosion Proof Refrigerators and Freezers all ferrous ame paths are protected from corrosion by the use
of petroleum jelly [or petrolatum or soap-thickened mineral oils].
It is important to note that Explosion-Proof Refrigerator and Freezer must be connected to the power supply
source by rigid metal conduit with proper ttings suitable for Class I, Groups C and D* hazardous locations.In
addition, the wires inside the conduit must be sealed.
Explosion-Proof Refrigerator and Freezer require being hard wired into the building electrical system and
therefore require a qualied electrician to install as per the “local electrical requirements and NEC Standard” or
“Canadian Electrical Standard".
*The notation Class 1, Groups C and D is an accepted abbreviation for Class I, Div 1, Groups C and D; Class I
Zone 1 Group IIB.
WARNING: For Explosion-Proof Refrigerator and Freezer where ammable 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 certication 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 re or explosion.
It is the your responsibility to meet these requirements. Thermo Scientic cannot assist with the selection of
devices, recommend, approve or design any device or monitoring circuit.
Note: If any questions pertaining to electrical safety arise, please refer to article 501 of the US National
Electrical Code.