24
/04.2016/
G35
EN
5.1 Application limits
- Admissible return air conditions:
Temperature:
Lower limit:
18°C (DX)
20°C (CW)
Upper limit:
40°C (DX)
45°C (CW)
Humidity:
Lower limit:
5°C (DX), 5,5°C (CW) dew point
Upper limit:
60% r.h. and 16°C (DX) dew point
resp. 17°C (CW) dew point
- Outdoor ambient conditions:
lower limit: -20°C
upper limit: depending on selected condenser
- Water circuit (CW-units):
max. total pressure:
16 bar
min. water temperature:
5°C
max. glycol content:
50%
- Required minimum thermal load: 30% of nom. cooling
capacity
- Storage conditions:
Temperature [°C]:
-20 – +45 (A/AS/GS/GES-units)
-20 – +60 (CW-units)
Humidity [% rel. h.]:
max. 90
- Max. length of piping between A/C unit and air-
cooled condenser: 30 m equivalent.
- Max. level difference between condenser and
A/C unit: 5 m (when condenser is below the A/C unit).
- Voltage: 380-415V / 3ph / 50Hz; N; PE
- Voltage tolerance: +/- 10% (not for permanent operation)
- Frequency tolerance: +/- 1%
The following voltages are also available for this A/C unit
series with on/off compressors (CRS/L ... A):
208V/3Ph/60Hz; PE (also for CRS/L 320 CW)
230V/3Ph/60Hz; PE (also for CRS/L 320 CW)
380V/3Ph/60Hz; N; PE
460V/3Ph/60Hz; N; PE
460V/3Ph/60Hz; PE for the models CRS/L 361 AS
CRS/L 361 GS
CRS/L 361 GES
CRS/L 560 CW
Other voltages on request.
Voltage/frequency tolerances as for 400V/3Ph/50Hz.
The cooling capacity, air flow, water flow, pressure loss,
sound pressure level and valve sizes change with a vol-
tage 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 indepen-
dent of the supply voltage and can be found in this manual.
Requirements for UPS systems
:
(in case of permanent operation of the EC fans with a
UPS system)
- the output voltage of the UPS system must be grounded
neutral (wye).
- the voltage distortions must be within the limits stated
below and no inadmissibly high DC voltage portions
may exist.
- all-pole sinus filters must be provided at the UPS system
output.
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%
The warranty is invalidated for any possible damage or
malfunction that may occur during or in consequence of
operation outside the application ranges.
5. Technical data
Summary of Contents for CRL 210 CW
Page 68: ......
