Field Measurements of Heating Efficiency of Electric Forced-Air Furnaces in Six Manufactured Homes. Page: 47 of 62
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- Page 16
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MAP HEATING SYSTEM PROTOCOL
Supply Air Leakage Test, con't
Supply Leakage to outside (50 and 25)
Set-up: Blowerdoor set to pressurize heated space
Internal doors of heated space open
Connections to outdoors from heated space closed
Set Duct Blaster for 50 Pascals in supply system
Set house to 50 Pascals
Adjust Duct Blaster to 50 Pascals
Final Adjustment: Adjust Duct Blaster or blower door so that delta-P between, heated
space and supply system near plenum is 0. Record supply pressure
outside. Repeat at 25 Pascals.-
A) Pressurize house to about 50 Pascals, measure near supply plenum
turn on Duct Blaster, increase speed until duct pressure is zero
near 50 Pascals (use 10 second average)-
Supply pressure
Ring #
Flow pressure
CFM .
Pressurize supply system to about 25 Pascals, measure near supply plenum
turn on Duct Blaster, increase speed until duct pressure is zero
near 25 Pascals (use 10 second average)
Supply pressure
Ring #
Flow pressure
CFMS- r~'.
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Davis, Bob; Palmiter, Larry S. & Siegel, Jeff. Field Measurements of Heating Efficiency of Electric Forced-Air Furnaces in Six Manufactured Homes., report, July 26, 1994; United States. (https://digital.library.unt.edu/ark:/67531/metadc1278222/m1/47/: accessed April 26, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.