16
© 2015 Emerson Climate Technologies, Inc.
AE4-1331 R7
Note 1:
Operation in this refrigerant dilution area is safe in air-to-air heat pump heating mode. For other applications, such as
AC only, review expansion device to raise superheat. A cold sump may result in high refrigerant migration after shut down.
Figure 1
Oil Dilution Chart
-30
-25
-20
-15
-10
-5
0
5
10
-24
-14
-4
6
16
26
36
-10
0
10
20
30
40
50
60
70
80
90
100
110
-20
-10
0
10
20
30
40
50
Evaporating Temperature (°C)
Compresso
r Sump
Te
mperature
(°
C)
Compress
or
Sump
Te
mperature (°F)
Evaporating Temperature (°F)
200°F (93.3°C)
Max Oil Temp
Acceptable
Unacceptable
(Too Much Refrigerant Diluon)
*See Note 1
