Auto-Zone Control Systems Auto-Zone Basic Systems Installation & Operation (Version 02C) - Manual (Page 57)

Auto-Zone Basic Section 2
Installation and Wiring 2-27
Tip: Having at least 10-20 feet of tubing between the pick-up tube and the pressure
sensor will improve control performance by acting as a “filter” to remove pres-
sure fluctuations caused by turbulence in the duct.
Figure 2-20: Static Pressure Sensor Wiring
Note: Refer to Figure 1-3 in section 1 of this manual for instructions concerning
proper location of the static pressure sensor.