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Hfc134A Service Information; Health, Safety, And Handling - Maytag AFU1202BW Service

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Service Information
!
WARNING
before attempting to service unless test procedures require power to be connected. When removing any wiring from
terminals, replace on the same terminals. Ensure all ground wires are connected before certifying unit as repaired
and/or operational.

HFC134a Service Information

HFC134a Refrigerant
HFC134a is alternative refrigerant for CFC12. HFC134a
has an ozone depletion potential (ODP) factor of 0.0 and
a global warming potential (GWP) factor of 0.27.
HFC134a is not flammable and has acceptable toxicity
levels. HFC134a is not interchangeable with CFC12.
There are significant differences between HFC134a and
CFC12 which must be considered when handling and
processing refrigeration system.

Health, Safety, and Handling

Health, safety and handling considerations for HFC134a
are virtually no different than those for CFC12.
Health, Safety, and Handling
Allowable overall exposure limit
Vapor exposure to skin
Liquid exposure to skin
Vapor exposure to eye
Liquid exposure to eye
Above minimum exposure limit
Safety and handling
Spill management
Fire and explosion hazards
Storage conditions
Disposal procedures
©2004 Maytag Services
To avoid risk of electrical shock, personal injury or death,
always disconnect electrical power source to the freezer
Comparison of CFC12 and HFC134a:
Properties/Characteristics
Ozone Depletion Potential (ODP)
Global Warming Potential (GPW)
Molecular weight
Boiling point at 1 atmosphere
Vapor pressure at 77°F (25°C)
Liquid density at 77°F (25°C)
Flammability
High-side system operating
Pressure at 65°F (18°C) ambient
Low-side system operating
Pressure at 65°F (18°C) ambient
* Compared to CFC 11 = 1
CFC12
1,000 ppm
No effect
Can cause frostbite
Very slight irritant
Can cause frostbite
Can cause Asphyxiation,
Tachycardis, and Cardia
Arrhythmias
Wear appropriate skin
and eye protection. Use
with adequate
ventilation.
Remove or extinguish
ignition or combustion
sources. Evacuate or
ventilate area.
May decompose if
contact with flames and
heating elements.
Container may explode if
heated due to resulting
pressure rise.
Combustion products are
toxic.
Procedures/rules for
CFC12 also apply for
HFC134a.
Recycle or reclaim
16023585
CFC12
1.0*
3.2*
121
-22°F (-30°C)
80 psig
82 lb/ft3
No
HFC134a approximately 3 psig
higher than CFC12
HFC134a approximately 2 psig
lower than CFC12
HFC134a
Same
Same
Same
Same
Same
Same
Same
Same
Same
Same
HFC134a
0.0*
0.27*
102
-15°F (-26°C)
82 psig
75 lb/ft3
No
43

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