HomeMy WebLinkAbout6903 RANGER DR - DISCLOSURES - 1/21/2003 (2)Sara's Energy Scoring
813 Oxford LN
DATE FT. COLLINS, CO 80525
O1/17/03 (970)377-1056
CUSTOMER: US Homes
6903 Ranger `PV
Fort Collins ,CO
BUILDING CONDITIONS:
Interior Temp = 68 F Exterior Temp = 45 F
Volume = 35500 Cu. Ft. Above Grade Surface Area = 0 Sq. Ft.
Number of Stories = 2 Number of Occupants = 2
Wind Shield Factor = 1
HOUSE TEST :
Depressurized
Fan Model - 3
Performed By SARA
Data Points:
House Pressure Fan Pressure
CFM
%Error
Fan Configuration
56
133
1987
1.8
Ring
A
47
101
1734
-1.4
Ring
A
40
85
1592
-0.4
Ring
A
34
67
1415
-2.5
Ring
A
28
55
1284
-0.7
Ring
A
20
40
1096
3.5
Ring
A
Correlation Coefficient Flow Coefficient Exponent
r = .9953 C = 178.54 n = 0.594
Results:
Air Flow @ 50 Pascals :
1824 CFM50 +/- 1.1%
3.08 ACH50 (Air Changes Per Hour)
Effective Leakage Area (LBL) = 115.34 Square Inches +/- 6.8%
Equivalent Leakage Area (CANADA) = 205.93 Square Inches +/- 4.1%
Estimated Natural Infiltration (50 Pascal Flow Divided By 13.6)
= 134 CFM
= 67.2 CFM/OCCUPANT
= 0.23 AIR CHANGES PER HOUR