Installation Instructions
Bosch IDS BVA 2.0
| 15
Bosch Thermotechnology Corp. | 02.2019
Data subject to change
5 Air
fl
ow Performance
Airfl ow performance data is based on cooling performance with a coil and no fi lter
in place. Check the performance table for appropriate unit size selection.
External static pressure should stay within the minimum and maximum limits
Air Handler
Model Size
Motor Speed
SCFM
External Static Pressure-Inches W.C.[kPa]
0[0]
0.1[.02]
0.2[. 05]
0.3[.07]
0.4[.10]
0.5[.12]
0.6[.15]
0.7[.17]
0.8[.20]
24
Tap(5)
SCFM
1181 1144 1104 1063 1021 991 961 919 902
Watts
263 274 283 289 298 304 314 323 328
Tap(4)-Default High Stage Setting
SCFM
961 913 872 826 792 748 717 673 638
Watts
146 151 160 166 175 180 190 195 205
Tap(3)
SCFM
852 797 760 708 674 626 589 535 500
Watts
109 114 122 127 137 142 150 155 157
Tap(2)-Default Low Stage Setting
SCFM
755 711 653 615 563 505 499 413 382
Watts
81 98 94 103
108 112 119 125 133
Tap(1)
SCFM
712 647 604 548
490 481 452 427 368
Watts
71 75 84 88 93 98 101
109
114
36
Tap(5)
SCFM
1460 1420 1371 1329 1228 1224 1195 1093 1041
Watts
283 294 301 311 322 327 340 356 367
Tap(4)-Default High Stage Setting
SCFM
1269 1213 1170 1121 1085 996 911 867 810
Watts
191 197 207 213 223 238 247 255 266
Tap(3)
SCFM
1152 1093 1046 988 895 829 764 717 707
Watts
147
152 161 167 181 192 198 207 208
Tap(2)-Default Low Stage Setting
SCFM
925
879 808 700 623 573 516 495 442
Watts
87
96 100 111 116 125 129 134 143
Tap(1)
SCFM
889
727 456 225 /
/
/
/
/
Watts
74 66 51 44 /
/
/
/
/
48
Tap(5)
SCFM
2051 2006 1961 1914 1867 1819 1777 1735 1695
Watts
454 471 487 503 518 531 545 559 572
Tap(4)
SCFM
1914 1875 1831 1782 1735 1691 1649 1611 1581
Watts
384 401 416 430 442 455 467 480 492
Tap(3)-Default High Stage Setting
SCFM
1714 1661 1611 1560 1513 1469 1424 1380 1314
Watts
273 289 304 317 330 343 353 366 386
Tap(2)
SCFM
1499 1451 1398 1340 1288 1247 1188 1058 993
Watts
198 212 224 234 243 256 271 290 303
Tap(1)-Default Low Stage Setting
SCFM
1363 1307 1250 1181 1134 1062 938 875 835
Watts
151 163 175 181 193 206 224 232 243
60
Tap(5)
SCFM
2029 1988 1947 1900 1858 1815 1771 1716 1671
Watts
466 482 498 514 528 541 553 565 572
Tap(4)-Default High Stage Setting
SCFM
1881 1843 1800 1754 1708 1666 1626 1590 1558
Watts
391 407 423 438 449 462 474 487 498
Tap(3)
SCFM
1677 1633 1586 1543 1499 1449 1409 1370 1281
Watts
281 297 311 325 338 346 358 370 386
Tap(2)-Default Low Stage Setting
SCFM
1491 1439 1380 1334 1285 1246 1180 1047 988
Watts
205 217 226 238 250 259 269 292 300
Tap(1)
SCFM
1348 1280 1227 1180 1130 1042 933 871 825
Watts
157 165 176 187 196 206 225 233 245
Table 7
Bold outlined areas represent airfl ow outside of the required 300-450 cfm/ton range.
NOTES:
1. The high stage airfl ow must be used as the rated airfl ow for the full load operation of machine.
2. The rated airfl ow of systems without electric heater kits requires between 300 and 450 cubic feet of air per
minute (CFM).
3. The rated airfl ow of systems with electric heater kits requires between 350 and 450 cubic feet of air per
minute (CFM).
4. The air distribution system has the greatest eff ect on airfl ow. Therefore, the contractor should use only
industry-recognized procedures.
5. Duct design and construction should be carefully done. System performance can be lowered dramatically
through poor design or workmanship.
6. Air supplier ducts should be located along the perimeter of the conditioned space and properly sized.
Improper location or insuffi cient air fl ow may cause drafts or noise in the ductwork.
7. Installers should balance the air distribution system to ensure proper quiet airfl ow to all rooms in the
home. An air velocity meter or airfl ow hood can be used to balance and verify branch and system airfl ow
(CFM).
shown in the table below in order to ensure proper operation of both cooling,
heating, and electric heating operation.
