Stulz CyberCool - 4. Technical Data; 4.1 Application limits

21
Kaltwasservolumenstrom 221 421 661 841 981
Standardvolumenstrom (a) m³/h 3,1 5,9 (6,2)* 9,3 11,8 13,8
max. Wasservolumenstom (b) m³/h 4,6 8,9 (9,3)* 14,0 17,8 20,7
min. Wasservolumenstom (c) m³/h 2,3 4,4 (4,7)* 7,0 8,9 10,4
© STULZ GmbH – all rights reserved EN/09.2017/G44
cybercool indoor chiller original instructions
Room conditions:
Temperature [°C]: +5 - +40
Humidity [% rel. h.]: 20 - 80
Atmosphere pressure [kPa]: 70 - 110
Outdoor ambient conditions:
Lower limit: -10 °C, down to -45°C (option)
Upper limit: depending on condenser
Storage conditions:
Temperature [°C]: -20 - +42
Humidity [% rel. h.]: 5 - 95
Atmosphere pressure [kPa]: 70 - 110
Max. length of piping between chiller and
air-cooled condenser:
30 m equivalent.
Max. level difference between condenser and
chiller:
5 m (when condenser is below the chiller).
Chilled water conditions:
temperature at the unit inlet [°C]: +8 - +25
max. outlet temperature [°C]: +18
temp. diff. at max. water flow [K]: 4
temp. diff. at min. water flow [K]: 8
Chilled water circuit:
Nominal pressure [bar]: PN 6
Safety valve trigger pressure [bar]: 6,0
Cooling medium circuit:
Nominal pressure [bar]: PN 16
Voltage:
400V / 3ph+N+PE / 50Hz
Voltage tolerancy:
+/- 10 % (not for permanent operation)
Frequency tolerancy: +/- 1 %
The following voltages are also available for this unit
series: 460V / 3Ph+PE / 60Hz
Voltage/frequency tolerances as for
400V / 3ph+N+PE / 50Hz .
The cooling capacity, water flow, pressure loss,
sound pressure level and valve sizes change with
a voltage different from the standard voltage
(400V/3Ph/50 Hz). In this case, see the technical
data by the help of the „Stulz Select“ planning tool.
The unit design, the external dimensions, the weight,
the position and size of the supply connections are
independent of the supply voltage and can be found
in this manual.
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
* differing values for GE version in brackets
Chilled water circuit, medium: water
(a) at 18°C/12°C water temperature inlet/outlet
(b) at 18°C/14°C water temperature inlet/outlet (min. dTw)
(c) at 18°C/10°C water temperature inlet/outlet (max. dTw)
Chilled water volume flow
Standard volume flow (a) m³/h
max. water volume flow (b) m³/h
min. water volume flow (c) m³/h