Technical Data - AERMEC NRA 2000 Manual Tecnico

MOD. TP1 AER485P1
VERSIONS STANDARD (°)
2000 • (x4) •
2250 • (x4) •
2500 • (x4) •
2800 • (x4) •
3000 • (x4) •
3300 • (x4) •
3600 • (x4) •
NRA A
2000 • (x4) •
2250 • (x4) •
2500 • (x4) •
2800 • (x4) •
3000 • (x4) •
3300 • (x4) •
3600 • (x4) •
NRA L
2000 • (x4) •
2250 • (x4) •
2500 • (x4) •
2800 • (x4) •
3000 • (x4) •
3300 • (x4) •
3600 • (x4) •
NRA HEAT PUMPS VERSION H - HL
2000 di serie •
2250 di serie •
2500 di serie •
2800 di serie •
3000 di serie •
3300 di serie •
3600 di serie •
NOTA
* DCPX Standard in models HL
NOMINAL REFERENCE CONDI-
5. 1
TIONS
The technical data is calculated as follows:
Performance refer to following conditions:
- Temperature water inlet
- Temperature of processed water
- Ambient air temperature
- ∆t
Heating:
- Temperature of processed water 50 °C
- Ambient air temperature
- ∆t
Sound Power
Aermec determines the value of sound
power on the basis of measurements per-
formed in compliance with regulation 9614,
in respect with that requested by Eurovent
certification.
(1) Sound Pressure
Sound pressure in free field on a reflective
surface (factor of directionality Q=2), at 10
metres from the external surface of the
8
PGS GP DCPX
00
• 260x2 29+29 607
• 260 350 29+30 613
• 350x2 30+30 618
• 350x2 30+30 622
• 350x2 30+30 622
• 500x2 30+30 632
• 500x2 30+30 632
• 260x2 29+29 607
• 29+30 613
260 350
• 350x2 30+30 622
• 350x2 30+30 622
• 350x2 30+30 622
• 500x2 30+30 632
• 500x2 30+30 632
• 260x2 di serie 607
• 260 350 di serie 613
• 350x2 di serie 622
• 350x2 di serie 622
• 350x2 di serie 622
• 500x2 di serie 632
• 500x2 di serie 632
• 260x2 29+29 * 607
• 29+30 * 617
260 350
• 350x2 30+30 * 625
• 350x2 30+30 * 622
• 350x2 30+30 * 622
• 500x2 30+30 * 632
• 500x2 30+30 * 637

TECHNICAL DATA

5
unit, using the parallel expansion method
(box-method, ISO 3744)
NOTE
- The noise data refers to the configuration
12 °C
without pump.
7 °C
- For the heat pumps the data refers to func-
35 °C
tioning in cooling conditions
5°C
E.S.E.E.R.
There is a growing awareness in Europe
b.s. 7 °C as well that attention needs to be paid to
b.u. 6 °C the electricity consumed by air conditioning
5°C machines. For many years now in the United
States talk has not just been about efficiency
in the plan conditions, but an assessment
index is used that takes account of the margi-
nal operation of the unit under plan conditions
and the greater use with partial loads with
external air that is less than that planned
ESEER = (3xEER100%+33xEER75%+41xEER50%+23xEER25%) / 100
Evaporator outlet water
∆T at full load
Load
External air temperature
AVX
01 02 03 04
608 608 608 608
615 611 611 611
619 619 619 620
619 619 619 620
619 623 619 623
628 628 628 628
628 628 628 628
608 610 608 610
615 612 612 612
619 619 619 623
619 623 619 623
624 623 624 623
628 628 628 628
628 628 628 628
608 610 608 610
616 612 612 612
619 624 624 623
624 623 624 623
624 623 624 623
628 628 628 628
628 628 628 628
608 610 608 610
615 612 612 612
619 620 619 623
619 624 619 623
624 623 624 623
628 628 628 628
628 628 628 628
and in conditions of compressor capacity
control. In Europe the proposed EECCAC
(Energy Efficiency and Certification of Central
Air Conditioner) has been adopted, the ESEER
(European Seasonal Energy Efficiency Ratio),
that has the purpose of being able to compa-
re the chillers with each other.
After estimating the total energy required
by the system during summer management
(kW/h), the seasonal electrical energy con-
sumption can be deduced with this
formula: Input energy = Required energy
The actual energy calculation can be obtained,
more accurately, by considering:
1. The load profile with external temperature
2. The climatic profile
3. The total number of hours
With this data, every consultant or designer
will be able to his or her evaluations.
100%
35°C
P1 P2 P3 P4
607 609 607 609
613 613 613 614
621 621 621 621
625 621 621 621
626 626 626 626
629 630 631 630
635 636 635 636
607 609 609 609
613 613 613 613
625 625 625 621
625 625 625 625
626 626 626 626
632 633 634 633
634 633 634 633
607 609 609 609
613 613 613 613
625 625 625 625
625 625 625 625
626 626 626 626
632 633 634 633
633 633 634 633
607 609 609 609
617 617 617 617
625 625 625 625
625 625 625 625
626 626 626 627
634 633 634 633
634 633 634 633
Efficiency index
7 °C
5 °C
75% 50% 25%
30°C 25°C 20°C