HomeMy WebLinkAbout821 ROMA VALLEY DR - CORRESPONDENCE - 4/26/2001Apr 27 01 07:48a Dick Anderson (970) 484-6195 p.2
DATE
04/26/0-1
ANDERSON ASSOCIATES
422 East Oak Street
Eort Collin&, Colorado 80524
(970)484-0305
CUSTOMER: Sanford Homes
821 Roma ValleybT-
Fort Collins, CO 80525
720/480-6402
G CONDITIONS' _ 70 F Exterior Temp = 68 F Sq. Ft.
InteriorTemp Above Grade Surface Area = 4830
Volume = 50423 cu.-Ft. Number of Occupants = 5
Number of Stories = 2
Wind Shield Factor 1
CEST Depressurized
Fan Model = 3
Performed By Dick Anderson AIA
Data Points:
House Pressure
56
52
25
20
15
8
4
Fan Configuration
Fan Pressure
CFM
%Error
open
104
4478
-2.3
Open
88
32
2715
2719
1.1
Open
Ring A
190
2419
5.6
4 3
Ring A
121
1935
1119
_4 7
-4
Ring A
40
302
1030
_ 8
Ring B
Ring B
78
519
-36.3
Correlation Coefficient
r _ .9959-
Results:
Flow Coefficient Exponentn = 0,729
C = 257.48
Air Flow @ 50 Pascals : 1 7�
4451 CFM50 +/-
5.30 ACH50 (Air Changes Per Hour)
200.40 Square Inches +/-
404.69 Square Inches +/-
0.92 CFM50 Per Square Foot
Effective Leakage Area (LBL)
Equivalent Leakage Area (CANADA)
Minneapolis Leakage Ratio
Estimated Natural Infiltration (50
= 310 CFK
= 62.0 CFM/OCCUPANT
= 0.37 AIR CHANGES PER HOUR
Pascal Flow Divided By
-�,--!5 -�t' ':�•C' Acrk ':�,p
6.3%
3.9%
Aff-iL 26, c ,