O/A Sensor And Tubing Installation - Trane IntelliPak 1 with Symbio 800 Installation, Operation And Maintenance Manual

Figure 19. Removing return fan assembly shipping hardware (20 to 75 ton)
ISO-2
Motor
Access
Door
Shipping Tie
Down (4)
40-75 Ton
ISO-4
Ground Strap
(Do Not Remove)
Wireless Communication Interface (WCI)
The wireless communication interface is located in the
return section of the unit when a return fan is not installed.
This provides wireless access to the building through the
return duct work.
O/A Sensor and Tubing
Installation
An Outside Air Pressure Sensor is shipped with all units
designed to operate on variable air volume applications,
units equipped with a return fan, or units with 100%
modulating relief with Statitrac.
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 parameter.
On VAV units equipped with 100% modulating relief with
Statitrac, a space pressure transducer (3U62) and the
outside air sensor is used to control the relief fan and
dampers to relieve static pressure to within a customer-
specified parameter, within the controlled space.
On units equipped with a return fan, a return pressure
transducer (3U106) is connected to the O/A sensor for
comparison with return plenum pressure.
RT-SVX072D-EN
RETURN FAN (20 to 75 Ton)
TOP VIEW
SEE DETAIL A
Use the following steps and images to install the sensor
and the pneumatic tubing.
1. Remove the O/A pressure sensor kit located inside the
2. Using two #10-32 x 1¾" screws provided, install the
3. Using the #10-32 x ½" screws provided, install the O/A
4. Remove the dust cap from the tubing connector located
5. Attach one end of the 3/16" O.D. factory-provided
Shipping Tie Down (3)
25-30 Ton
1/2" Tie
Down Bolt
ISO-1
Remove &
Discard
Shipping Tag
Remove
& Discard
Shipping
Channel
Remove
& Discard
ISO-3
filter section. The kit contains the following items:
a. O/A static pressure sensor with slotted mounting
bracket
b. 50 ft. 3/16" O.D. pneumatic tubing
c. Mounting hardware
sensor's mounting bracket to the factory-installed
bracket (near the filter section).
static pressure sensor vertically to the sensor bracket.
below the sensor in the vertical support.
pneumatic tubing to the sensor's top port, and the other
end of the tubing to the connector in the vertical
support. Note that most of the tubing is not needed.
Note: Use only what is required and discard excess
tubing.
Installation
1/2" Lock
Washer
Remove &
Discard
1/2" Flat
Washer
Remove &
Discard
DETAIL A
37