Total Heat Recovery - AERMEC NSB Serie Manual Tecnico

11. 1 OPERATION WITH
TOTAL RECOVERY
In the case of operation with total
heat recovery, the performances of
the machine do not depend on the
temperature of the outside air but on
that of the hot water produced: the
electrical input power and the reco-
very heating capacity are obtained by
multiplying the values (Pa, Pr) shown
in the table below by the respective
correction coefficients (Ca, Cr), that
can be seen in the following diagrams.
Next to each curve 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. The NSB
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.
The characteristics of the recovery
units and the pressure drop curves
are shown below.
The heating capacity available to
the total heat recovery is in rated
conditions:
Air temperature
Water produced
∆t
Version
A
Total rec. capacity kW
Total input power
kW
m 3 /h 61. 1
Water flow rate
Pressure drop kPa
Version A
Total rec. capacity kW
Total input power
kW
m 3 /h 152.3
Water flow rate
Pressure drop
kPa
Version E
Total rec. capacity kW
Total input power
kW
m 3 /h 58.2
Water flow rate
Pressure drop
kPa
Versioni E
Total rec. capacity
kW
Total input power kW
m 3 /h 149.8
Water flow rate
Pressure drop kPa
26
11
Ca
Cr
KEY:
Cr = Correction factors total cecovery capacity
Ca = Correction factors imput power
35 °C
45 °C
5 °C
1251 1401 1601 1801 2101
355 403 443 543 602
80 88.5 96 123 136
69.2 76.2 93.3 103.5
38 41 46 45.5 46
3202 3402 3602 3902 4202 4502 4802 5003 5203 5403 5703 6003 6303 6603 6903 7203
886 985 1084 1144 1226
191 218 246 259 273
170 186.5 196.7 210.8
47.5 46 45 46 48
1251 1401 1601 1801 2101
338 388 443 526 580
86 97 105 135 148
66.7 76.3 90.5 99.8
36 39 45 43 43
3202 3402 3602 3902 4202 4502 4802 5003 5203 5403 5703 6003 6303 6603 6903 7203
871 961 1052 1105 1188
211 240 270 283 300
165.3 180.9 190. 1 204.3
45 44 43 43 45
TOTAL RECOVERY
Temperature of the water produced at the desuperheater(∆t 5°C)
2401 1402 1602 1802
684 393 445 512
151 89 100 116
117.6 67.5 76.6 88. 1
42 32 39.5 43
1285 1367 1428 1527
286 301 314 341
221. 1 235.2 250.8 265.2
44 42 48 47
2401 1402 1602 1802
662 371 424 490
151 98 110 126
113.9 63.8 72.8 84.3
39.5 29 36 39.5
1241 1324 1397 1495
313 330 346 384
213.5 227.7 240.2 257.2
41.5 39.5 45 45
2002 2202 2352 2502 2652 2802 3002
580 638 671 702 745
130 143 152 159 168
99.8 109.8 115.4 120.7 128.2
46 47 43 39 40
1626 1686 1768 1827 1910
368 381 396 409 424
279.7 290.0 304. 1 314.3 328.4
45 46 46 46 45
2002 2202 2352 2502 2652 2802 3002
552 605 642 678 724
143 153 164 174 185
95.0 104. 1 110.5 116.6 124.5
42 42.5 39.5 36.5 38
1577 1631 1713 1767 1849
405 418 435 448 465
271.3 280.6 294.7 304.0 318. 1
43 43 44 43 42.5
795 845
183 184
136.7 145.3
41 44
1969 2051
437 452
338.7 352.8
44 42
775 824
201 203
133.3 141.8
39 42
1903 1985
478 495
327.4 341.5
41 39.5