Automated Performance Testing System; Dg-3 Gauge - TEC Minneapolis Blower Door 3 Operation Manual

DG-700 Pressure Gauge
2.2.b Automated Performance Testing System™:
The Automated Performance Testing (APT) system performs fully automated Blower
Door tests from a user supplied laptop or desktop computer using TEC's TECTITE
software. The TECTITE software allows the user to select among various airtightness
testing procedures, including a cruise control option which maintains the building at any
user-defined pressure. The APT system automatically adjusts the speed of the Blower
Door fan while simultaneously monitoring the building pressure and fan flow using 2
on-board differential pressure channels. Test results are recorded, displayed on the
screen, and can be saved to a file.
If the APT system contains more than 2 installed pressure channels, the additional
channels can be used to monitor and record pressures in attached zones (e.g. attic or
crawlspace) during the automated Blower Door test.
The APT system consists of the following components:
•
One Data Acquisition Box (DAB) with 2 to 8 on-board pressure channels and
phone jacks for 8 voltage input channels.
•
One 6' serial cable (w/ 9 pin connectors) to connect the DAB with your
computer.
•
One 12V power supply for the DAB.
•
One CD containing the TECTITE software.
The Data Acquisition Box (DAB) comes fastened to a black plastic mounting board. The mounting board may
also contain two electrical outlets which can be used to power the Blower Door fan, DAB or a lap-top computer.
Note: When using an APT system, only automated Blower Door testing can be conducted because the APT's
DAB does not have a built-in display. Manual testing must be done with a DG-700 or DG-3 gauge.
Chapter 2
DG-3 Pressure Gauge
10
System Components