GEA Bock FK20 - Manual (Page 10)

10 09740-09.2013-DGbFIT
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3| Areas of application
3.5 TK version
Models available:
• FK20/120 TK
• FK20/145 TK • FK20/170 TK
• FKX20/120 TK • FKX20/145 TK • FKX20/170 TK
3.5.1 Limits of application R404A/R507 (TK version)
3.5.2 Limits of application R22 (TK version)
Permissible rotation speeds:
TK design: 500 – 2600 ¹/
rpm
Permissible rotation speeds:
TK design: 500 – 2600 ¹/
rpm
FK
10 0 -10 -20 -30 -40 -50
20
30
40
50
60
70
t (°C)
o
t (°C)
c
Dt
oh
<20K
t +20°C
oh
58
-45
R404A/R507
R404A/R507 TK
t
c
t
0
t
oh
Dt
oh
Verdampfungstemperatur (°C)
Verflüssigungstemperatur (°C)
Sauggasüberhitzung (K)
Sauggastemperatur (°C)
Uneingeschränkter
Anwendungsbereich
reduzierte Sauggastemperatur
FK
R22
t
c
t
0
t
oh
Dt
oh
Verdampfungstemperatur (°C)
Verflüssigungstemperatur (°C)
Sauggasüberhitzung (K)
Sauggastemperatur (°C)
Uneingeschränkter
Anwendungsbereich
reduzierte Sauggastemperatur
R22 TK
10 0 -10 -20 -30 -40 -50
20
30
40
50
60
70
t (°C)
o
t (°C)
c
Dt
oh
<20K
t +25°C
oh
66
-45
Max. permissible
operating pressure (g) high-
pressure side (HP): 28 bar
Unrestricted
application range
Reduced suction gas
temperature
Evaporation temperature (°C)
Condensing temperaturee (°C)
Suction gas superheat (K)
Suction gas temperature (°C)
Fig. 6
R404A/R507
R22
Max. permissible
operating pressure (g) high-
pressure side (HP): 28 bar
Unrestricted
application range
Reduced suction gas
temperature
Evaporation temperature (°C)
Condensing temperaturee (°C)
Suction gas superheat (K)
Suction gas temperature (°C)
Design for other ranges on request
Fig. 7