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Air cooled inverter water chiller
OPERATION
MANUAL
EWAD TZ B 160-700
Air cooled inverter water chiller
D-EOMAC00909-16EN
Operation Manual
9
Relief Safety Valve
If the pressure becomes too high in the refrigerant circuit, the relief valve will open to limit the
maximum pressure. If this happens switch off immediately the machine and contact your local
service organization.
Inverter fault
Each compressor can be equipped with its own inverter (integrated or external). The inverter
can automatically monitor its status and inform the Unit Controller in case of faults or pre-alarm
conditions. If this happen the Unit Controller will limit the compressor operation or eventually
switch off the circuit in alarm. A manual action on the controller will be needed in order to clear
the alarm.
1.4 Available sensors
1.4.1 Pressure transducers
Two types of electronic sensors are used to measure suction, discharge and oil pressure on each
circuit. The range of each sensor is clearly indicated on the sensor casing. Discharge and oil
pressures are monitored using a sensor of the same range.
1.4.2 Temperature sensors
The evaporator water sensors are installed in the entering and leaving side. An outdoor
temperature sensor is mounted inside the chiller. Additionally each circuit installs a suction and
discharge temperature sensors to monitor and control the superheated refrigerant temperatures.
On refrigerant-cooled inverters additional sensors immersed into the cooling plate measure the
temperature of the drives.
1.4.3 Thermistors
Each compressor is equipped with PTC thermistors which are immersed into motor windings for
motor protection. Thermistors trip to a high value in case the motor temperature reaches a
hazardous temperature.
1.4.4 Leak detectors
As an option the unit can be equipped with leak detectors to sense the air in the compressor cabin
and being able to identify a refrigerant leakage in that volume.
1.5 Available Controls
1.5.1 Evaporator pumps
The controller can regulate one or two evaporator pumps and takes care of automatic change-over
between pumps. It’s also possible to prioritize the pumps and temporarily disable one of the twos.
The controller is also able to control the pump speeds if the pumps are equipped with inverters.
1.5.2 Compressors
The controller can regulate one or two compressors installed on one or two independent refrigerant
circuit (one compressor per circuit). All the safeties of each compressor will be managed by the
controller. Embedded inverter safeties are handled by the inverter onboard electronic and only
notified to the UC.
Bekijk gratis de handleiding van Daikin EWAD495TZPLB2, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Daikin |
| Model | EWAD495TZPLB2 |
| Categorie | Airco |
| Taal | Nederlands |
| Grootte | 11976 MB |
