22
Kältemittel
R134a
Niederdruckschalter
Auslösung bei
bar
0,6
automatischer Reset bei
bar
1,1
Hochdruckbegrenzer
Auslösung bei
bar
21
Manueller Reset möglich bei
bar
17,5
Sicherheitsventil
Auslösung bei
bar
24
Kältemittel
R134a
Sicherheitshochdruckbegrenzer
Auslösung bei
bar
21,5
Manueller Reset möglich bei
bar
18,0
EN/09.2019/G41 © STULZ GmbH – all rights reserved
cybercool 2 screw original insTrUcTions
Sensors
The following sensors are installed in the chiller as standard:
for each refrigerant circuit:
- condensation pressure -> for condenser fan control
- suction gas temperature
- suction gas pressure (evaporation pressure)
Chilled water circuit:
- chilled water inlet temperature
- chilled water outlet temperature
- flow sensor
- frost protection thermostat
- intermediate temperature (free cooling)
In units with free cooling exists an additional sensor for the
chilled water temperature which is measured at the free cool-
ing coil outlet.
Air temperatures:
- electric cabinet inside temperature
- compressor housing temperature
- outdoor temperature
to control the expansion valve
}
Refrigerant
low pressure switch
releases at
bar
automatic reset at
bar
High pressure limiter
releases at
bar
manual reset possible at
bar
Safety valve
releases at
bar
Electric cabinet
The electric cabinet is divided into a load section and a control section
with separate door. The load section contains a power switch, operable
from outside which locks the cabinet door when switched on.
A thermostatically controlled air/water heat exchanger for cooling at
high ambient temperatures is situated inside the electric cabinet on the
left side.
Fan, aspirating warm air out of the
electric cabinet
Setting of the safety devices
Refrigerant
Safety high pressure limiter
releases at
bar
manual reset possible at
bar
