Stulz CyberCool 2 - 4. Technical Data; 4.1 Application Limits

23
Gerätetyp
ESO/EQO ... ASN/ASF 12 °C
ESO/EQO ... AHN/AHF 20 °C
© STULZ GmbH – all rights reserved EN/09.2019/G41
cybercool 2 screw original insTrUcTions
Storage conditions:
Temperature [°C]: -20 - +45
Humidity [% rel. h.]: 5 - 95
Type of network:
TNS; TNCS
Voltage:
400V/50Hz/3Ph/N/PE
Voltage tolerancy:
+/- 10% (not for permanent operation)
Frequency tolerancy: +/- 1%
Rated ultimate short-circuit breaking capacity
(I
CU
):
25 kA
Required minimum thermal load:
20% of nominal cooling capacity
Chilled water conditions:
Max. temperature at the unit inlet: +26 °C
Temperature difference: 48 K
Max. water pressure: 10 bar
Max. glycol content: 35%
with special pumps: to 50%
Max. temperature at the unit outlet:
Requirements for electric network and UPS
systems:

system must be grounded neutral (wye).

stated below and no inadmissibly high DC voltage
portions may exist.
transient peak over-voltage phase to ground:
max. 4 kV (1,2/50µs wave form; Z=12 Ohms in acc.
to ANSI)
transient peak over-voltage phase to phase:
max. 2 kV (1,2/50µs wave form; Z=2 Ohms in acc.
to ANSI)
ripple voltage phase to ground:
dV/dt < 1V/µs (≡1000V/ms)
voltage harmonics: THD(V) < 8%

system output.
The warranty is invalidated for any possible damage
or malfunction that may occur during or in conse-
quence of operation outside the application limits.
4. Technical Data
4.1 Application limits
at maximum compressor capacity, water volume flow
according to design conditions 18/12°C and outdoor
temperature 35°C. The temperatures may vary during
the start phase.
Chiller type
