Block Load

What is Block Load ?

Carrier's Block Load program is a powerful, fully featured HVAC load estimating program suitable for commercial buildings of any size.
New for 2008
v4.15 Released

Version 4.0 of Block Load was released in mid-2005.

If you're a current or former user of Carrier's Block Load program, click below to see:

What's New in v4.0
HVAC software block load load estimating software
Who Can Benefit From Block Load?
Block Load is a tool for consulting engineers, design/build contractors, HVAC contractors, facility engineers and other professionals involved in the design, analysis or installation of commercial building HVAC systems.
How Does it Work?
Block Load asks you to supply basic information about your building, and then provides you with all the sizing and load information you need to analyze and design the HVAC system and select all of the air conditioning equipment.

E20-II block load report - hvac software
Sample Block Load Report

Four Reasons to Choose Block Load
  • EASY TO LEARN, EASY TO USE Intuitive tree view navigation lets you see your entire project, and means you won't `get lost’ in the program. All of your project data is just a single mouse click away.
  • ACCURACY Rigorous (not simplified) cooling load calculations based on the ASHRAE-endorsed Transfer Function Method (TFM) means you don't have to worry about over- or under- sizing your loads.
  • VERSATILITY Block Load is ideal for preliminary sizing calculations or for final design submittals. And where else can you run a simple rooftop job and a 150-zone central air handler job with equal ease? In English or S.I. Metric units? With presentation-quality output reports?
  • SUPPORT Block Load's Help system and user's manual contain the answers to most of your questions. But for those especially tough questions, we provide you with free, unlimited telephone support via our toll-free 0800 CARRIER number.
Return to Top

More Details

Key Program Features
Load Calculation Features
  • Uses ASHRAE procedures for Transfer Function cooling load calculations, design heating load calculations, solar radiation calculations.
  • Calculates room and zone loads 24 hours a day for design days in all 12 months.
  • Identifies peak room, zone, and coil loads.
  • Suitable for sizing systems involving central station air handlers, packaged rooftop units, self-contained units, split systems, DX fan coils, hydronic fan coils and water source heat pumps.
  • Sizing data is provided for central cooling and heating coils, preheat coils, fans, terminal reheat coils, CAV and VAV air terminals, fan coils and terminal heat pumps.
  • Analysis of ventilation requirements using procedure described in ASHRAE Standard 62-2001.
  • Provides a database of design weather data for over 700 cities worldwide.
Report Features
  • Provides many well-formatted reports listing calculation results as well as input data.
  • Key system sizing report summarizes data needed for equipment selection on 1-2 pages.
  • Key ventilation report summarizes requirements for each zone in the system.
  • Additional reports provide zone and system component loads, hourly zone and system load profiles, detailed hourly psychrometric data and a graph of the psychrometric process.
  • Provides features for copy-and-paste from displayed reports into other documents.
  • Provides features for saving reports as files in RTF-, PDF- or HTML- format documents.
  • Advanced output reports available to help in the diagnosis of load results and system behavior.
Other Program Features
  • Tree view in main window allows for easier program navigation and data viewing.
  • Choice of conventional input format or spreadsheet style input for building data.
  • Runs in English and SI Metric units.
  • Suitable for new construction and retrofit applications.
  • Provides a database of design weather data for over 700 cities worldwide.
  • Provides feature for archiving and retrieving project data.
  • Provides feature for converting Block Load v3.0 data into Block Load v4 data.
  • Provides a global search and replace feature for all building data.
  • Provides a feature to automatically change the orientation of the entire building.
  • Program is network compatible...
Download Adobe Acrobat Sample sheets are provided in Adobe Acrobat™ format. Download the latest reader by clicking on the icon to the left.