Honeywell R422D Refrigerant 11.3kg Cylinders

Physical Properties
Chemical Formula and Composition
Component Formula Weight %
HFC-134a CF3CH2F 31.5
HFC-125 CF3CHF2 65.1
Isobutane CH(CH3)3 3.4
Average molecular weight* . . . . . . . . . 109.9
Boiling point (bubble point)
@ 1atm (°F)* . . . . . . . . . . . . . . . . . . -45.76
Critical temperature (°F)* . . . . . . . . . . . 175.2
Critical pressure (psia)* . . . . . . . . . . . 566.22
Critical density (lb/ft
3
)* . . . . . . . . . . . . 33.008
Saturated liquid density @
80°F (lb/ft
3
)* . . . . . . . . . . . . . . . . . . . 70.87
Heat of vaporization @ boiling point
(btu/lb)* . . . . . . . . . . . . . . . . . . . . . . . 81.78
Specific heat of liquid @
80°F (btu/lb·°F) . . . . . . . . . . . . . . . . . . 0.35
Specific heat of vapor @ constant
pressure, Cp @ 1atm and 80°F
(btu/lb·°F)* . . . . . . . . . . . . . . . . . . . . . 0.20
Flammable range, % volume in air . . . . none
ASHRAE/ANSI Standard 34 . . . . . . . . . . . A1

Features
• Can replace HCFC-22 in many cases without
having to change compressor lubricant.
• May be used with alkyl benzene (AB),
mineral oil (MO), and polyolester (POE)
lubricants. If inadequate oil return is
observed for AB or MO, addition of
POE may be needed.
• Genetron 422D can, in most cases, be used
with existing HCFC-22 thermostatic expansion
valves. Larger valves may be needed in
cases where the R-22 valve is near its
maximum capacity.
• Lower discharge temperature than HCFC-22
which may extend compressor longevity.
• Non-ozone-depleting HFC refrigerant.
• ASHRAE classification A1 (low toxicity,
non-flammable per ASTM E-681 method).
• Allows for use of existing equipment.