Carrier Aquaforce 30XA Series, Инструкции по установке, эксплуатации и обслуживанию

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11.6 - Electronic expansion valve (EXV)
The EXV is equipped with a stepper motor (2785 to 3690
steps, depending on the model) that is controlled via the
EXV board. The EXV is also equipped with a sightglass
that permits verification of the mechanism movement and
the presence of the liquid gasket.
11.7 - Moisture indicator
Located on the EXV, permits control of the unit charge and
indicates moisture in the circuit. The presence of bubbles in
the sight-glass indicates an insufficient charge or non-con-
densables in the system. The presence of moisture changes
the colour of the indicator paper in the sight-glass.
11.8 - Filter drier
The role of the filter drier is to keep the circuit clean and
moisture-free. The moisture indicator shows, when it is
necessary to change the element. A difference in tempera-
ture between the filter inlet and outlet shows that the
element is dirty.
11.9 - Sensors
The units use thermistors to measure the temperature, and
pressure transducers to control and regulate system opera-
tion. Refer to the 30XA/30XAS/30XW Touch Pilot control
manual for a more detailed explanation.
11.10 - Service valve (option 92)
The unit can be equipped with optional service valves to
facilitate maintenance and repair operations.
If option 92 is ordered, each refrigerant circuit will be
supplied with shut-off valves on the compressor economiser,
discharge and suction lines.
ATTENTION: The compressor suction valve must be
used without pressure difference at the terminals. If there
is a pressure difference, leak-tightness at the valve may be
lost and the valve can even fail altogether.
Equal pressure
11.11 - Power factor correction capacitors
(option 231)
They garantee a minimum power factor performance of
0.95 when unit operates at a condition that involves a
power input that exceeds the Eurovent standard condition.
A fix capacitor bank is switched at start of each
compressor. It provides individual power factor correction
for each machine refrigerant circuit.
Capacitors are dry type : no risque of leakage or fire.
The capacitors are selected for each compressor as per
below table:
Compressor Capacitor (kVAR)
06TSA155 15
06TSA186 20
06TTA266 35
06TTA301 35
06TTA356 35
06TUA483 45
06TUA554 45
Caution: Operation of the unit without capacitors results
in current raising
According to the Regulation No. 640/2009 and amendment 4/2014 implementing Directive 2005/32/EC with regard to ecodesign
requirements for electric motors.
Product 30XA
Option Standard option 119
Motor type Asynchronous Asynchronous
Number of poles 8 6
Nominal input frequency Hz 50 50
Nominal voltage V 400 400
Number of phases 3 3
Motor included in the application domain of the regulation 640/2009 and
amendment 4/2014
No No
Sales leaflet for exemption °C Article 2.1 Article 1.2.c).(ii)
Ambient air temperature for which the motor is specifically designed 70 70