R502

The following table shows the data for R502 and alternative refrigerants.

ODP: ozone depletion potential
GWP: global warming potential according to EN 378:2017; AR4: Fourth Assessment Report of the IPCC, AR5: Fifth Assessment Report of the IPCC, AR6: Sixth Assessment Report of the IPCC
pract. limit AEL: assigned exposure limit according to EN 378:2017
Temperature glide: Total glide from bubble to dew line, based on 1.013 bar. Real glide depends on operating conditions.
Relative refr. capacity and discharge temp. increase: Reference refrigerants are those listed under "Substitute for", performance data are average values based on calorimeter tests.
(H): high temperature application
(M): medium temperature application
(L): low temperature application
Data is based on publications of various refrigerant manufacturers and is subject to change.

R502 and alternative refrigerants
	R502	R404A	R507A	R22
Chemical				CHClF2
Group	CFC	HFC	HFC	HCFC
Components	R22/ 115	R143a/ 125/ 134a	R143a/ 125
Name				chloro-difluoro-methane
Manufacturer
Substitute for		R502, R22	R502, R22	R502, R12
Application max (°C)	10	0	0	12
Application min (°C)	-50	-45	-45	-45
Appl. limitations max (°C)		7	7
Appl. limitations min (°C)
Appl. 2-stage max (°C)		-30	-30	-20
Appl. 2-stage min (°C)		-70	-70	-50
Oil 1	AB	POE	POE	MO
Oil 2		PVE	PVE	AB
Oil 3
Oil with limitations 1		AB	AB
Oil with limitations 2
Molar mass	111,64	97,6	98,86	86,47
Normal boiling point (°C)	-45,4	-46,2	-46,7	-40,7
Normal dew point (°C)	-45,4	-45,5	-46,7	-40,7
Temperature glide (K)	0	0,7	0	0
Crit. temp. (°C)	82	72	71	96
Crit. pressure (bar)	40,7	37,35	37,05	49,9
ODP	0,33	0	0	0,055
GWP AR4	4657	3922	3985	1810
GWP AR5	4790	3940	3990	1760
GWP AR6		4728	4775	1960
Cond. temp. at 26 bar abs (°C)	60	56	54	63
Cond. temp. at 40 bar abs (°C)
Relative refr. capacity (%)		105 (M)	107 (M)	80 (L)
Discharge temp. increase (K)		-34	-34	35
Safety class	A1	A1	A1	A1
Pract. limit AEL (kg/m³)	0,45	0,52	0,53	0,3