Appendix A - EasyIO - LIT-12014127 - EASYIO-FW-VAV - FV-VAV - 1.0

EasyIO FW-VAV Application Note

Brand
EasyIO
Product name
FV-VAV
Document type
Application Note
Document number
LIT-12014127
Version
1.0
Revision date
2024-04-09
Product status
Active
Language
English

You need to input the K-factor number into the program to set up the VAV box. Usually, the K-factor is provided by the VAV Box manufacturer. In case the K-factor information is not available at the time of programming, you can use the K-factor numbers in Table 1.

Table 1. K-factor values
Round duct diameter in inches K-factor, CFM K-factor, Lps K-factor, m3/hr
4 273 128 463
5 390 184 662
6 448 211 761
7 667 314 1133
8 904 426 1535
9 1167 550 1982
10 1436 677 2439
12 1891 892 3212
14 3015 1422 5122
16 3839 1811 6522
Round duct diameter in cm K-factor, CFM K-factor, Lps K-factor, m3/h
100 175 82.5 297
125 297 140 505
160 522 246 887
200 853 403 1450
250 1382 652 2348
315 2257 1065 3834
355 2900 1369 4928
400 3721 1756 6323
Note: These values are reference only and they are meant for the pre-commissioning process.