Multiple Fan Testing for Large Buildings

How to Perform Automatic Multi‑Point Tests

  • Use FanTestic to control multiple blower door fans simultaneously at varied pressures.

  • The system automatically steps through 7 test points spaced from 15 Pa to 60 Pa, with time‑averaging (10 s) and auto‑baseline correction, as defined by ASTM E779 and ANSI/RESNET/ICC 380.

  • The software collects flow-pressure data and generates a flow curve to compute accurate ACH50 values—especially critical in large structures where performance thresholds are tighter.

Custom Reporting Based on Test Standards

  • FanTestic allows exporting of test results to customizable report formats that reflect your chosen standard (e.g., LEED, ASHRAE, IECC).

  • Reports can include:

    • Flow vs. Pressure curve plots

    • Test environment metadata (temperature, date/time, fan IDs)

    • Pass/fail status per chosen leakage limit

    • Embedded charts, building diagrams, and compliance disclaimers

Device Strategies for Low & Mid‑Rise Buildings

  • Use multiple Model 7000 or Model 7310 fans for buildings with numerous zones or units. These fans weigh only ~23 lbs yet deliver high CFM capacity. Embedded accelerometers and ESC ensure smooth coordinated operation

  • DM‑32X gauges—color‑coded and WiFi/Ethernet-enabled—simplify multi-fan management and data logging. Multiple gauges can be networked for full-site coverage as part of QA workflows.

Conference Sneak Peek – Seattle Retrotec Training

  • During the Seattle Hands‑On Conference, attendees practiced live setup of triple-fan systems with DM‑32X control, set multi-point tests, and created real-time reports.

  • Trainers led breakouts on deploying multiple fans, troubleshooting fan coordination, and generating data exports for large-scale project documentation.

Why This Is a Breakthrough for Large-Building Testing

  • Scales efficiently to mid-rise apartment buildings or commercial venues using synchronized multi-fan setups.

  • Automated multi-point flows deliver greater accuracy and repeatability than single-point tests.

  • Custom reports reflect real results aligned to buyer, inspector, or certification program needs.

  • Built-in network and software tools enhance remote collaboration, QA workflows, and training synergy.

Summary Table

FeatureBenefit
Auto Multi‑Point TestsFully automated fan control across 15–60 Pa test points
Custom ReportsStandard-aligned, branded, field-ready documentation
Multiple Fan SystemsEfficient testing across large or multi-unit buildings
Remote Control & QADM‑32X gauges with WiFi/Ethernet & FanTestic software
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