O/A Sensor And Tubing Installation - Trane IntelliPak 3 with Symbio 800 Installation, Operation And Maintenance Manual

Installation
Figure 19. Supply fan cone overlap

O/A Sensor and Tubing Installation

An Outside Air Pressure Sensor is shipped with all units
designed to operate on variable air volume applications or
units with modulating relief with Statitrac.
Figure 20. Outside air tubing schematic
Fresh Air
Upper Transducer
Low
Left side
Flow
High
Ring
Lo Hi
Upper
Low
Flow
High
Ring
44
Fresh Air
Transducer
Upper
Low
Left side
Flow
High
Ring
NC
Upper
Low
NO
Flow
High
Ring
C
On VAV systems, a duct pressure transducer and the
outside air sensor is used to control the discharge duct
static pressure to within a customer-specified range. On
CV and VAV units equipped with modulating relief with
Statitrac, a space pressure transducer and the outside air
sensor is used to control the relief fan and dampers to
relieve static pressure to within a customer-specified range,
within the controlled space.
Use the following steps and image to install the sensor and
the pneumatic tubing.
1. Remove the O/A pressure sensor kit located inside the
main control box. The kit contains the following items:
a. O/A static pressure sensor with slotted mounting
bracket
b. 50 ft. tubing
c. Mounting hardware
2. Install the O/A static pressure sensor horizontally to the
roof rail at the return end of the unit.
3. Remove the dust cap from the tubing connector located
below the sensor in the vertical support.
4. Attach one end of the 3/16" O.D. factory-provided
pneumatic tubing to the sensor's top port. Attach the
other end of the tubing to the connector in the side of
the O/A intake hood (for units without O/A intake, attach
to panel at the return end of the unit).
Note: Use only what is required and discard excess
tubing.
Lo Hi
NC
NO
C
RT-SVX080A-EN