Run A Report In Tv-Vavb3-E2 (Optional); Balancing The System; Prepare For Balancing; Sequence Of Operation - Carrier TruVu VAVB3-E2 Installation And Startup Manual

Run a report in TV-VAVB3-E2 (Optional)

After balancing, you can run a report (.htm file) in Test & Balance that shows each controller's calibrated values
and design values. You can view or edit the file in Microsoft Excel, Microsoft Word, or any web browser.
Select Session > Report.
1
Select an existing report or type a name in the File Name field.
2
Click Save.
3
If you chose an existing report in step 2, select Append to add to the report or Overwrite to replace the report.
4

Balancing the system

Most VAV system airflow designs are based on cooling requirements which require a greater cfm (liters/second)
flow than heating requirements. Using the following balancing procedure, you adjust the cooling airflow first. If the
heating and cooling maximum airflow requirements are the same, you do not need to balance the heating airflow.
Use the Test & Balance program to balance the system. Test & Balance can perform all the necessary functions,
including shutting down the Linked air source and performing global commands to all zones in the system. You
should do steps 1 through 4 in Prepare for balancing (page 61) prior to using Test & Balance. See Test &
Balance's Help for details on the steps required to complete the balancing procedure.
NOTE We recommend that you set the heating minimum airflow settings for all the zones in the system to
maintain the air source's design minimum heat cfm (liters/second) airflow across its heat exchanger to prevent
damage to the equipment.

Prepare for balancing

Log in to the i-Vu® application with an Installer or Administrator role, or use Field Assistant.
1
Make sure the air source and its controller have been properly started and can run as a standalone unit.
2
Make sure you have addressed, commissioned, and started the zone and bypass controllers, if present.
3
Verify that zone controllers supplying multiple registers have manual dampers on each register branch duct
4
for balancing the design airflow through each register.

Sequence of operation

The TV-VAVB3-E2 supports 3 types of pressure-independent terminal configurations:
•
Single duct
•
Series fan-powered
•
Parallel fan-powered
The controller can operate as part of a linked system (VAV or VVT) or as a stand-alone controller.
TruVu™ VAVB3-E2
Installation and Start-up Guide
61
Start-up
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