Installing The Transducer; Zone Sensor Options For Control; Units; Standard With All Units - Trane IntelliPak SCWF 20 Installation, Operation And Maintenance Manual

I I n n s s t t a a l l l l a a t t i i o o n n - - E E l l e e c c t t r r i i c c a a l l

Installing the Transducer

Use the following procedure to properly install the
static pressure transducer:
1. Mount pressure sensing head assembly in duct
with sensing tip is in middle of the duct so that it
will provide a proper pressure measurement. See
Figure 24, p. 46.
2. Connect the pneumatic tubing from the sensing
head to the push-on tubing connection in the
control panel. Use a plastic static pickup tubing. Do
not exceed 250 feet for 1/4" OD tubing or 500 feet
for 3/8" OD tubing.
Transducer inside control panel picks up low side or
reference pressure.
N N o o t t e e : : If plastic tubing pulls away from a connection,
trim it back before replacing it on the fitting.
Stretched tubing may leak and cause faulty
control.
Figure 24. Static pressure sensor installation
Static Pressure
Head Assembly
Connector
for 1/4"
Tubing
Sheet Metal Screws
(provided by installer)

Zone Sensor Options for Control

Units

Zone sensor options are available and can be ordered
with the unit or after the unit ships. They also can be
46
Duct
Pressure
Sensor
NOTE:
Pleace sensor inlet
perpendicular to airflow.
ordered through "Unitary Accessories (ACC)"/"UPG
Rooftop, Packaged Heat Pump, Split System
Accessories (ACC)". Contact your local Trane sales
office. Following is a full description of zone sensors
and their functions. Following is a full description of
zone sensors and their functions. See
for the zone sensor temperature vs. resistance
coefficient curve.
Standard with All Units: BAYSENS077
Zone temperature sensor only
This zone sensor module ships with all units, and can
be used with BAYSENS019, BAYSENS020, or
BAYSENS021 remote sensors. When this sensor is
wired to one of these remote zone sensors, wiring must
be 18 AWG shielded twisted pair (Belden 8760 or
equivalent). Refer to the specific zone sensor for wiring
details. It provides the following features and system
control functions:
• Remote temperature sensing in the zone
• Morning warm-up sensor
• Zone sensor for ICS™ systems
• Zone temperature averaging
When used as a remote sensor for standard zone
sensor, the thermistor sensor must be disabled.
(Possible Schematic Designation(s): 5U23, 5U26, 5U30,
and 5RT5.)
Table 39, p. 70
SCXF-SVX01Q-EN