Manual N – Commercial Load Calculation for Small Commercial Buildings, 5th Edition
Manual N – Commercial Load Calculation for Small Commercial Buildings, 5th Edition
Book Overview
Manual N gives you a faster way to estimate heating and cooling loads for small and mid-size commercial structures, a simplified version of the procedure in the ASHRAE GRP 158 Load Calculation Manual. Manual N shows you how to use the Cooling Load Temperature Difference (CLTD) method to estimate heat gain through opaque surfaces and the cooling-load-factor method to estimate solar gains through glass.
Key Aspects:
- Basic principles of heat transfer, R-values, U-values, and heat transfer multipliers
- Calculating loads for individual structural components, rooms, and zones
- Time-of-day calculations
- Peak room loads versus peak block loads
- Indoor and outdoor design considerations
- Sensible and latent internal loads
- Wall, roof, ceiling, and partition heat gain and loss
- Heat gain and loss from glass, ducts, infiltration, and ventilation
- Humidification loads
Highlights:
- Dual Calculation Procedures
- Updated Standards and Practices
- Extensive Reference Materials
- Real-World Applications
- Enhanced Sensitivity Analysis
Key Features & Benefits
The Manual N (5th Edition) offers a complete, modernized framework for calculating heating and cooling loads in light commercial, small or mid-size buildings (three stories or less). Designed by Hank Rutkowski and published by ACCA, it reflects updated construction methods and equipment while balancing energy, ventilation, and comfort requirements.
Manual N is used by HVAC contractors, engineers, and designers to accurately calculate heating and cooling loads for light commercial buildings (typically ≤3 stories and ≤250,000 cubic feet of conditioned space). It’s essential for ensuring comfort, efficiency, and code compliance in non-residential environments.
- Sizing HVAC Equipment for Commercial Spaces
- Code Compliance & Permit Approval
- Designing for Unique Commercial Conditions
- Integration with Modern Software Tools
- Supports System Upgrades & Energy Retrofits
Manual N is often a required or recommended resource for HVAC certification and licensing exams, especially those focused on commercial HVAC system design. It equips professionals with the technical knowledge, calculation skills, and code-compliant procedures that are frequently tested. The manual includes:
- Covers Core Exam Topics
- Real-World Calculation Practice
- Supports Broader ACCA Design Path
- Improves Technical Vocabulary
The Manual N – Commercial Load Calculation for Small Commercial Buildings (5th Edition) includes a variety of Visual and Organizational Tools designed to help HVAC professionals and designers understand, apply, and document commercial load calculations accurately and efficiently.
- Clear Diagrams and Illustrations
- Worked-Out Examples
- Tables and Charts
- Summary Boxes
- Section-Based Structure
- Calculation Worksheets
Book Details
- Publisher: Air Conditioning Contractors of America (ACCA)
- Edition/Release Date: 5th Edition, February 26, 2008
- ISBN: 978-1892765383
- Pages: 650
- Dimensions: 8.4 x 10.9 x 1.3 inches
- Format: Paperback / Softbound
- Target Audience: Professionals
Pricing & Purchase Information
• Price: $142.99
• Shipping: Free shipping on orders over $250.
• Formats Available: Physical Book
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