{"product_id":"manual-j-residential-load-calculation-8th-edition-full1-new122","title":"Manual J Residential Load Calculation (8th Edition - Full)","description":"\u003ch5 class=\"show\"\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eMJ8 produces equipment sizing loads for single-family-detached homes, small multi-unit structures, condominiums, town houses and manufactured homes.\u003c\/p\u003e\n\u003cp\u003eManual J8 provides detailed requirements for producing a residential load calculation per the CLF \/ CLTD method. The provision of the standard apply to any dwelling unit that has its own heating-cooling-ventilating system and equipment, and its own exhaust air system(s). This includes:\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eSingle family detached structures, duplex structures, and triplex structures;\u003c\/li\u003e\n\u003cli\u003eSingle family attached structures (row house or town house);\u003c\/li\u003e\n\u003cli\u003eDwelling units in multi-family attached structures (condo and apartment units); and\u003c\/li\u003e\n\u003cli\u003eEnergy efficient homes.\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eManual J8 divided into two portions: normative and informative. Parts N (Normative Requirements) and 4 (Normative Tables) contain the minimum requirements for conducting a residential load calculations. Informative Parts 1, 2, 3, and 5 contain additional explanation, details, and examples that clarify the normative requirements.\u003c\/p\u003e\n\u003cp\u003eBelow is a detailed overview of changes in the updated 2016 version vs. the 2011 release of Manual J (version 2.11) is as follows:\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003e\n\u003cb\u003eNew Section N\u003c\/b\u003e: This nine page section provides the normative requirements for undertaking a load calculation per the CLF\/CLTD method contained in Manual J, 8th Edition. It is intended to help with code enforcement. A new requirement in the documentation output is to indicate whether or not AED exists.\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003e\n\u003cb\u003eDesign Conditions\u003c\/b\u003e: Reference to the design conditions clarifies that the designer may use either the Manual J Table 1A\/1B outdoor design conditions or weather data from ASHRAE, but that they cannot be mixed per Section 18-7. Guidance is also given for calculating the Grains Difference values from ASHRAE data.\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003e\n\u003cb\u003eAdjustable Defaults\u003c\/b\u003e: Figure 3-1 (Adjustable Defaults for Local Conditions and Practices) has been expanded to include more information on rules for default use or default values. New topics addressed are: windows and skylight glazing assemblies; vertical glass – insect scree; vertical glass – sun screen; foreground reflectiveness; skylight tilt angle, exposure direction, and assembly U-value (Ueff); opaque panels; garage partition wall; encapsulated attics; infiltration; duct load factors and latent load factors; duct wall insulation R-value and duct leakage; duct wall surface area; AED excursion value; moisture migration.\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003e\n\u003cb\u003eInterpolation Rules for Software\u003c\/b\u003e: Per Section 3, page 30: “Interpolation is required when rounding down, or up, from the actual variable value, or set of variable values, produces more than five percent (5.0%) difference between the rounded value and the fully interpolated value.”\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003e\n\u003cb\u003eAdditional Section 3 Guidance\u003c\/b\u003e: More detailed guidance has been added to Section 3 (Important Issues and Concepts) that covers: engineered ventilation as a system load; engineered ventilation as a space load; kitchen range hoods; fireplaces and space heating stoves.\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003e\n\u003cb\u003eTables Deletions\u003c\/b\u003e: The following tables from the 2011 Manual J have been deleted (See the Table Deletion Notice on page 256 for an explanation of why each table was deleted):\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e3A-2 (Heat absorbing glass – windows)\u003c\/li\u003e\n\u003cli\u003e3A-3 (Reflective glass – windows)\u003c\/li\u003e\n\u003cli\u003e3C-2 (Flat heat absorbing glass – skylights)\u003c\/li\u003e\n\u003cli\u003e3C-3 (Flat reflective glass – skylights)\u003c\/li\u003e\n\u003cli\u003e3C-5 (Tinted plastic dome - skylights)\u003c\/li\u003e\n\u003cli\u003e3C-6 (Milky plastic dome – skylights)\u003c\/li\u003e\n\u003cli\u003e3E-2 (Latitude adjustment for generic fenestration)\u003c\/li\u003e\n\u003cli\u003e3E-4 (SHGC values for light and dark shading devices used with generic fenestration)\u003c\/li\u003e\n\u003cli\u003e8B (Moisture content of sea level air)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003e\n\u003cb\u003eRevisions to varied Worksheets\u003c\/b\u003e: Various revisions have been made to Worksheet E (Infiltration Loads), Worksheet GS (Duct Runs in Unconditioned Space), and Worksheet H (Ventilation Loads) in Appendix 10. These changes reflect the revised guidance on each subject, and have been incorporated into example problems throughout the informative portion of the Manual.\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInformative Appendices\u003c\/b\u003e: The following changes have been made:\n\u003cul\u003e\n\u003cli\u003eAppendix 13 (ANSI ASHRAE Standard 62.2) in the 2011 Manual J has been deleted\u003c\/li\u003e\n\u003cli\u003eNew Appendix 13 (Load Calculations for Energy Efficient Homes)\u003c\/li\u003e\n\u003cli\u003eNew Appendix 14 (MJ8 Duct Loads for a Duct Leakage Test Specification)\u003c\/li\u003e\n\u003cli\u003eNew Appendix 15 (Load Calculations for Large Multifamily Dwellings)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cdiv class=\"a-row\"\u003e\n\u003cspan class=\"a-size-base a-color-base a-text-bold\"\u003eISBN-13:\u003c\/span\u003e \u003cspan class=\"a-size-base a-color-base\"\u003e9781892765352\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"a-row\"\u003e\n\u003cspan class=\"a-size-base a-color-base a-text-bold\"\u003eISBN-10:\u003c\/span\u003e \u003cspan class=\"a-size-base a-color-base\"\u003e1892765357\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"ACCA","offers":[{"title":"Default Title","offer_id":32499440320566,"sku":"","price":141.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0201\/8243\/3846\/products\/Manual_J_8_Full_e6582219-bcbf-45d2-a046-020304c6b2af.jpg?v=1594326397","url":"https:\/\/digitalcoo-filter-demo-01.myshopify.com\/products\/manual-j-residential-load-calculation-8th-edition-full1-new122","provider":"Advanced Filter \u0026 Search demo","version":"1.0","type":"link"}