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Balancing HVAC System: Dual-Duct Systems Mobile App

A well performed testing, adjusting and balancing (TAB) of a HVAC system is essential for the proper performance of that system and can enhance indoor air quality and efficiency.The Balancing HVAC System: Dual-Duct Systems mobile app was developed to assist in air balancing and air flow of air conditioning and water cooling systems to improve indoor air quality. A systematic approach is called for when balancing a HVAC air and water systems. The app includes is a general procedures that can be applied to all systems. Routine testing will improve energy efficacy. Most constant-volume dual-duct systems are designed to handle part of the total system’s supply through the cold duct and smaller air quantities through the hot duct.

  • Lendlease
  • The Cooperative
  • PG&E
  • Red Bull
  • Mirvac

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Included Features

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Included Fields

Customize to add, remove, or edit any of the fields below.

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    Job Site

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    Location

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    HVAC Technician Name

  • Ico date

    Date

  • Ico signature

    Signature

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    Most constant-volume dual-duct systems are designed to handle part of the total system’s supply t...

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    Balancing should be accomplished as follows:

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    When adjusting multizone or dual-duct constant-volume systems.

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    Check the leaving air temperature at the nearest terminal to verify that hot and cold damper inl...

  • Ico checkbox

    Check apparatus and main trunks, as outlined in the section on Equipment and System Check.

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    Determine whether static pressure at the end of the system (the longest duct run) is at or above...

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    Proportionately balance diffusers or grilles on the low-pressure side of the box, as described f...

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    Change control settings to full heating, and ensure that the controls and dual-duct boxes functi...

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    If the engineer has included a diversity factor in selecting the main apparatus, it will not be ...

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    Comments

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