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ZHI05K1P to ZHI23K1P
75
70
65
60
55
50
45
40
35
30
25
20
15
10
-35 -30 -25 -20 -15 -10 -5
Evaporating Temperature (
Vapour injection 5K superheat
+ max 10K suction superheat
Vapour injection 5K superheat
+ max 10K suction superheat
Limited operation <2000 hours
on a compressor lifetime
Figure 2: Application envelopes with R410A
For air-to-water heat pump applications, an additional envelope extension may be required for high
temperature water production in case of low outdoor temperature. This can be achieved by the use
of wet vapour injection. For further information about wet vapour injec tion, c ontact A pplicat ion
Engineering at Emerson.
NOTE: For information and design recommendations regarding vapour injection, please
refer to Technical Information C7.4.3 "Vapour injection scroll compressors for heat pumps".
AGL_HP_ST_ZHK1P_EN_Rev00
R410A
0
5
10 15 20 25 30
o
C)
ZHI27K1P to ZHI46K1P
75
70
65
60
55
50
45
R410A
40
35
30
25
20
15
10
5
-35 -30 -25 -20 -15 -10 -5
Evaporating Temperature (
Vapour injection 5K superheat
+ max 5K suction superheat
Vapour injection 5K superheat
+ max 5K suction superheat
Limited operation <2000 hours
on a compressor lifetime
0
5
10 15 20 25 30
o
C)
5
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