16
© 2015 Emerson Climate Technologies, Inc.
AE4-1400 R1
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 2
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)
Compressor Sump Temperature (°C)
Compressor Sump Temperature (°F)
Evaporating Temperature (°F)
200°F (93.3°C)
Max Oil Temp
Acceptable
Unacceptable
(Too Much Refrigerant Diluon)
*See Note 1
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