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In accordance with regulation No. 640/2009 and amendment 4/2014 implementing Directive 2005/32/EC concerning eco-design
requirements for electric motors
Product
Option
Motor type
Number of poles
Nominal input frequency
Nominal voltage
Number of phases
Motor included in the application domain of the regulation 640/2009 and amendment 4/2014
Justification for exemption
Ambient air temperature for which the motor is specifically designed
(1) Only for the lead fan on each circuit; the other fans are Standard
9.5 - Electronic expansion valve (EXV)
The EXV has a stepper motor (2785 to 3690 steps depending on
the model), and a sight glass that enables verification of the
mechanism movement and the presence of the liquid gasket.
9.6 - Moisture indicator
Located on the EXV, this enables control of the unit charge and
indicates moisture in the circuit.
The presence of bubbles in the sight glass in cooling mode
indicates an insufficient charge or non-condensables in the
system. The presence of moisture changes the colour of the
indicator paper in the sight-glass (from green to yellow).
9.7 - Refrigerant accumulator with built-in filter drier
The refrigerant charge required in cooling mode is greater than
the permissible refrigerant charge in heating mode. The
accumulator is used to store the excess charge in heating mode.
A removable element and metal filter keep the refrigerant circuit
clean and free from moisture, by capturing solid contaminants.
When the moisture indicator turns yellow, it is necessary to
change the element. When the unit is operating in cooling mode,
a difference in temperature between the accumulator inlet and
outlet indicates fouling of the element and/or filter.
9.8 - Water heat exchanger
The exchanger is a brazed plate heat exchanger with two
refrigerant circuits. It has been tested and stamped for a
maximum operating pressure of 4520 kPa on refrigerant side
and of 3200 kPa on the water side. The water connections of the
heat exchanger are Victaulic connections.
The water heat exchanger is thermally insulated with 19 mm of
nitrile foam rubber (elastomer). As an option it can be protected
against frost by an electric heater (option 41: water heat
exchanger frost protection).
9.9 - Refrigerant
30RQM/30RQP units operate with R-410A.
30RQM
Standard
Asynchronous Asynchronous Asynchronous Asynchronous
6
Hz
50
V
400
3
NO
Article 2.1
°C
70
9.10 - High-pressure safety pressostat
30RQM/30RQP units are equipped with high pressure safety
switches with automatic reset on the HP side. These pressure
switches are located at the discharge of each circuit.
9.11 - Variable frequency drive
30RQP units are equipped with variable frequency drives to
control the fan speed within the fmin-fmax frequency range (for
the standard 30RQP, fmin=5 Hz and fmax=50 Hz). All fans on
the same refrigerating circuit are actuated and controlled by a
single variable frequency drive. Fan speed is changed by
generating a controlled waveform in which frequency and voltage
are varied (Pulse Width Modulation). Fan start-up/shut-down
and the working range frequency setpoint is controlled by the
Carrier Controller through RS485 communication using the
LEN Protocol.
9.12 - Power factor correction capacitors (option 231)
The power factor correction is active for all of the machine's
operating conditions.
A power factor performance of 0.95 is guaranteed when the unit
is running in conditions which require a power supply that
exceeds the Eurovent standard condition.
A capacitor bank is controled by a regulator which read the
current draw by the unit and ajust the power factor with a set
up at 0,95.
The capacitors are dry type: no risk of leakage or fire.
They are selected for each unit according to the table below:
Unit size RQM/P
160 180 210 230 240 270 310 330 380 430 470 520
Capacitors Capacity
30
30
(kVAR)
Capacitor 1
Capacity
10
10
(kVAR)
Ir(A)
14
14
Capacitor 2
Capacity
20
20
(kVAR)
Ir(A)
29
29
Capacitor 3
Capacity
-
-
(kVAR)
Ir(A)
-
-
Caution: Operation of the unit without capacitors results in
current raising
30RQM
30RQP
30RQP
Option 28
Standard
Option 12
(1)
6
6
6
50
50
60
400
400
400
3
3
3
NO
NO
NO
Article 2.1
Article 2.1
Article 2.1
70
70
70
40
40
40
50
50
60
70
80
10
10
10
10
10
20
10
20
14
14
14
14
14
29
14
29
10
10
10
20
20
20
20
20
14
14
14
29
29
29
29
29
20
20
20
20
20
20
40
40
29
29
29
29
29
29
58
58
80
80
20
20
29
29
20
20
29
29
40
40
58
58
43
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