ACCA - Manual J quickly calculates peak
heating and cooling Loads!
Manual J® is the industry standard residential
load calculation method, required by most building codes around
the country. Newly revised and expanded, the eighth edition procedures
produce improved equipment sizing loads for single-family detached
homes, small multi-unit structures, condominiums, town houses and
manufactured homes. These procedures are also compatible with different
types of comfort systems and applications such as:
- A central single-zone comfort system
- A central multi-zone system
- A distributed multi-zone system
- Dwellings that have limited exposure or no exposure diversity
More about Manual J® 8th Edition:
MJ8 also accommodates homes that have exceptional architectural
features and life style accessories such as:
- Homes with large south-facing glass area or rooms with unusually
large glass area
- A thermally isolated solarium
- Customized internal load estimates
MJ8 is sensitive to an increased variety of issues related to construction
materials and methods including:
- Fenestration loads for glass rated by the National Fenestration
Rating Council (NFRC)
- Improved duct load models
- Improved methods for estimation the effect of internal and external
shading devices, including insect screens
- Infiltration estimated based on blower door test
- Sensitivity to latitude and altitude
- Sensitivity to skylight to roofing material, curb construction
and light shaft construction
- Heat loss and gain for log walls, structural foam panels, aerated
autoclaved concrete block, insulated form concrete panels, brick
walls, concrete walls, wood foundation walls, and many other types
of walls and insulation options
NOW WITH NEW SOFTWARE: Each copy of MJ8 includes
a demo CD containing software that demonstrates how a load calculation
is performed using MJ8 as well as a fully-functional spreadsheet
that makes it easier to learn and apply the Manual J method.
Special Note: The recently
released 8th edition of Manual J is a significant expansion over
the 7th edition. There are numerous changes, but the most noticeable
is a much larger list of built-in floor, roof, wall, glass and door
materials. The 7th edition was missing references to current popular
materials such as structurally insulated panels, insulated concrete
forms, logs, and much more. The 8th edition includes all these materials
plus all common building materials with hundreds of variations.
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