Testing, Adjusting, and Balancing for HVAC
Corpus sync: neutrality remakes, note hygiene, datasheet relocation, transformer-split cross-refs
Showing changes from Rev 6
to Rev 7
in Testing, Adjusting, and Balancing for HVAC.
---
title: Testing, Adjusting, and Balancing for HVAC
…105 unchanged lines
- "Re-test reports for re-balanced systems"
- "Seasonal re-balance report (where in scope)"
−default: [Final TAB Report, signed and sealed by TAB Supervisor, Instrument calibration certificates, Deficiency reports with final disposition notes, Marked-up record drawings of balancing-device positions]
+default:
+ - "Final TAB Report, signed and sealed by TAB Supervisor"
+ - "Instrument calibration certificates"
+ - "Deficiency reports with final disposition notes"
+ - "Marked-up record drawings of balancing-device positions"
```
…8 unchanged lines
### The TAB firm shall not be owned by, affiliated with, or financially controlled by the Mechanical Contractor, the Controls Contractor, the Sheet Metal Contractor, or any other contractor performing installation work on the project, and shall not be a subsidiary or division of the General Contractor.
−### Independence is required to ensure that the TAB Contractor's deficiency reports are issued without conflict of interest. {note}
+### Independence is required to ensure that the TAB Contractor's deficiency reports are issued without conflict of interest.
### Agency Certification Selection {toc}
…57 unchanged lines
#### For the building envelope: exterior windows, doors, and curtain wall are substantially in place; major envelope openings are closed; stack effect and infiltration are representative of occupied conditions. {note}
+#### The system readiness conditions that must be verified complete before TAB mobilization shall be specified for each air, hydronic, controls, and envelope system.
+
```datasheet
label: System Readiness Verified Before TAB Mobilization
…162 unchanged lines
### Measured outdoor airflow at minimum-position settings shall be within +10%/-0% of the design minimum outdoor airflow.
−### The system shall not be balanced low on outdoor air, because outdoor air is required for code-mandated ventilation and indoor air quality. {note}
+### The system shall not be balanced low on outdoor air, because outdoor air is required for code-mandated ventilation and indoor air quality.
### Air-Side Tolerance Set-Points {toc}
…522 unchanged lines
### The TAB Final Report is the baseline against which future re-balance or troubleshooting work is compared, and the Owner shall retain the report as a permanent record of the system as accepted.