4 Installing the BlowerDoor Measurement System
BlowerDoor Standard
January 2022
45
4.5.4
Connecting the tubing to the DG-1000
Fig. 4.28: Tube connection at DG-1000
Channel A:
Building Pressure Differential
INPUT:
open
(building pressure)
REF:
green
tubing (outside
pressure)
Channel B:
Fan Pressure Differential (flow)
INPUT:
red
tubing
(
fan pressure)
REF:
blue
tubing (fan reference
pressure)
Fig. 4.29
If there is air turbulence near the gauge,
perhaps due to location (e.g. a narrow
hallway), slip an additional piece of tubing over
Channel A (input). Face the open end of this
tubing away from the air turbulence.
Note:
DG-1000 has a tubing assistant app for various
measuring tasks. To do this, open the tubing
assistant via the start screen.