AERMEC 2502 User Manual

INSPY. 1003. 4138305_03
38
12. TOTAL RECOVERY
In the case of operation with total heat
recovery, the performances of the ma-
chine do not depend on the tempera-
ture of the outside air but on that of the
hot water produced:
the electrical input power and the re-
covery heating capacity are obtained
by multiplying the values (Pa, Pr) shown
at the end of the page by the respec-
tive correction coefficients (Ca, Cr),
that can be seen in the following dia-
grams. According to the temperature
of the hot water produced referred to
is shown assuming a difference of 5°C
between the inlet to and outlet from
the total heat recovery unit.
12.1. PRESSURE DROPS
The NS models with total heat recovery
may have up to three recovery units,
1 per cooling circuit, depending on
the size.
NOTE
THE INSTALLER IS RESPONSIBLE FOR THE
HYDRAULIC PARALLEL.
NOTE:
12.2. PRESSURE DROPS TOTAL
RECOVERY
For the water produced temperature
values different from the rated, 45 °C,
the result obtained is multiplied by the
correction factor that can be obtained
from TAB. 12.1.1.
The nominal value refers to:
Air temperature .................................... 35 °C
Water during total recovery ............... 45 °C
∆t ............................................................... 5°C
Water flow rate l/h
Water flow rate l/h
Water flow rate l/h
Pressure drops (kPa)Pressure drops (kPa)Pressure drops (kPa)
Processed water temperature at water consumption (∆t 5°C)
Correction coefficient of
input power
Correction coefficient
Recovered efficiency
Processed water temperature during heat recovery unit °C
CORRECTION COEFFICIENTS OF TOTAL RECOVERY
12.2.1. Corrective factors for water tem-
peratures different than the nominal
water temperature
0,70
0,80
0,90
1,00
1,10
1,20
1,30
5
1,00
0,90
0,80
1,10
1,20
1,30
1,40
1,50
6789101112131415
50
55
50
55
45
45
40
40
35
35
0
25
50
75
100
125
20000
30000 40000 50000 60000 70000 80000 90000 100000 110000 120000 130000140000 150000 160000 170000
1251
1401
1601
1801
2101
2401
0
25
50
75
100
125
0
50000 100000 150000 200000 250000 300000 350000
1402
1602
1802
2002
2202
2352
2502 2652 2802 3002 3202
3402
3602
3902
4202
4502
4802
0
25
50
75
100
125
100000
150000 200000 250000 300000 350000 400000 450000 500000
5002
5202
5402
5702
6303
6603
6903
7203
6003
Water temperature °C 35 40 45 50 55
Multiplicational coefficient 1.12 1.06 1 0.92 0.86

AERMEC 2502 Specifications

General

Brand	AERMEC
Model	2502
Category	Chiller
Language	English