Operating Conditions; Refrigerants And Lubricants; Operating Envelope; R404A / R507 - Danfoss Maneurop NTZ Series Application Manuallines

Application Guidelines
Refrigerants and
lubricants
Model
NTZ
*Type: HFC: Hydrofluorcarbon (no chlorine component, "long-term" zero-ODP alternative)
**GWP: Global Warning Potential
*** Temperature glide: difference between saturated vapor temperature and saturated liquid temperature at constant pressure

Operating envelope

R404A / R507

R452A

16
FRCC.PC.046.A4.02

Operating conditions

Maneurop® NTZ compressors are designed and
optimised for refrigerants R404A / R507 / R452A.
The use of hydrocarbons is not authorised in NTZ
compressors.
Refrigerant Type*
R404A HFC
R507 HFC
R452A HFC+HFO
Because of their thermodynamic properties,
R404A and R507 are especially suitable for low
and medium temperature applications. Danfoss
recommends the use of these refrigerants with
NTZ compressors. Note that R404A has a small
Because of its thermodynamic properties R452A
is suitable for low temperature applications.
Only approved refrigerants and lubricants as
listed in below table may be used.
GWP** Temp.glide*** (K)
3922 0.7/0.3
3985 0/0
2141 3.9/3.7
temperature glide. It must therefore be charged
in the liquid phase. For most other aspects
however, this small glide may be neglected. R507
is an azeotropic mixture without temperature
glide.
R452A has a medium glide of 4K and must
therefore to be charged in the liquid phase.
NTZ / R452A
SH = 10K
RGT 20°C
Lubricant
175PZ POE charged