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Block Load

Block Load is a commercial HVAC load calculation software by Carrier that performs rigorous cooling and heating load calculations based on ASHRAE Radiant Time Series (RTS) or Transfer Function Method (TFM). It supports sizing for various HVAC system types and provides detailed load data for design and submittal purposes.
Latest: 4.2
Last checked: Oct 12, 2025 2:41pm
Rank: 6110/15140
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Overview

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License: ProprietaryWinget: Available

Version & Lifecycle

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Current: 4.2 Oldest supported: 4.16 Avg cadence: Irregular, with recent update in December 2024

Top Contributors

Top sitewide contributors:

  1. Anbarasan
  2. nico_k
  3. Bob
  4. Vigneshwaran

Community Notes

Deployment note • May 20, 2026
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Block Load close-before-update deployment note

For managed Carrier Block Load updates, close Carrier Block Load before starting the installer. If the application is open, the update can fail with Exit Code 5, so deployments should prompt/close the running app before retrying the package.

Official source: Carrier Block Load software page.

Release Notes & Updates

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Avg cadence:
Updates • 0

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Also known as

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blockload

Packaging Notes

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Version 4.2 introduced a new project management system and can coexist with version 4.16

Notes

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Free unlimited technical support is provided by Carrier's HVAC engineers via software help desk.