24
Figure
8.4 OPERATING ENVELOPES
Legend
Tc: Condensing Temperature °C
Te: Evaporating Temperature °C
k: Operating condition. Ambient 35oC, return gas temperature 20oC
sh: Superheating area; 11.1k
MBP - R404A/R452A
MBP - R134a/R513A
MBP - R449A /R448A
LBP R404A/R452A/R449A/R448A
70
65
60
55
50
45
40
35
30
25
20
15
10
5
80
75
70
65
60
55
50
45
40
35
30
25
20
15
70
65
60
55
50
45
40
35
30
25
20
15
10
5
70
65
60
55
50
45
40
35
30
25
20
15
10
5
Te (°C)
Te (°C)
Te (°C)
Te (°C)
Tc (°C)
Tc (°C)
Tc (°C)
Tc (°C)
-30 -25 -20 -15 -10 -5 0 5 10 15
-20 -15 -10 -5 0 5 10 15 20 25
-30 -25 -20 -15 -10 -5 0 5 10 15
-40 -35 -30 -25 -20 -15 -10 -5 0 5
k
sh
k
sh
k
k