Air inlet temperature 20 °C
68 °F
Effective working pressure 9 bar(g) for 10/10.4 bar compressors
131 psi(g) for 145/151 psi compressors
7 bar(g) for 7/7.5/8.6 bar compressors
102 psi(g) for 102/109/125 psi compressors
12 bar(g) for 13 bar compressors
174 psi(g) for 188 psi compressors
Temperature of cooling medium (water or air) inlet 20 °C
68 °F
Temperature rise of cooling water of ZR Pack
compressors
15 °C
27 °F
Temperature rise of cooling water of ZR Full-Feature
compressors
10 °C
18 °F
Temperature rise of cooling water in the Energy Recovery
circuit of ZR Full-Feature compressors
5 °C
9 °F
ZR / ZT 110-145
Motor shaft speed for 50 Hz fixed speed compressors
(rpm)
2980
Motor shaft speed for 60 Hz fixed speed compressors
(rpm)
3570
ZR / ZT 160-275
Motor shaft speed for 50 Hz fixed speed compressors
(rpm) - except for ZR / ZT 275 7.5 bar (109 psi)
1485
Motor shaft speed for 50 Hz fixed speed unit ZR / ZT 275
7.5 bar (109 psi) (rpm)
2980
Motor shaft speed for 60 Hz fixed speed compressors
(rpm)
1780
12.5 Limitations
Minimum - maximum ambient temperature (for
standard compressors)
0 - 40 °C
32- 104 °F
Minimum - maximum ambient temperature (for
High Ambient Temperature compressors)
0 - 50 °C
32- 122 °F
Minimum - maximum temperature of air inlet (for
standard compressors)
0 - 40 °C
32- 104 °F
Minimum - maximum temperature of air inlet (for
High Ambient Temperature compressors)
0 - 50 °C
32- 122 °F
Maximum altitude 1000 m
3281 ft
Minimum temperature of cooling medium (water or
air) inlet
0 °C
32 °F
Maximum temperature of cooling air inlet (for
standard compressors)
40 °C
104 °F
Maximum temperature of cooling air inlet (for High
Ambient Temperature compressors)
50 °C
122 °F
Instruction book
2920 1815 04 311