Low Voltage (Ac) Field Wiring; Connections; Interprocessor Communication Bridge; Module Wiring - Trane Technologies IntelliPak Signature SCWF Installation, Operation And Maintenance Manual

codes.
• Reference Table 26, p. 45
distance and size.
• Communication link wiring must be 18 AWG shielded
twisted pair (Belden 8760, or equivalent).
• Communication link must not exceed 5,000 feet
maximum for each link. See
• Do not run communication link between buildings.

Low Voltage (AC) Field Wiring

Connections

1. To access the wire entry locations, open the RHI panel
door and remove the two screws on the right-hand side
of the key pad.
2. Swing the keypad open, exposing both the wire entries
and the back of the HI module.
3. Refer to Figure 28, p. 46
three conductor 24 volt wires to the remote panel
terminal strip (+), (-), and (ground).

Interprocessor Communication Bridge

Module Wiring

1. Refer to the figure below and trim the outer covering of
the shielded cable back approximately one inch.
2. Cut the bare shield wire off even with the outer
covering.
3. Strip approximately 1/2" of insulation from each
insulated wire in order to connect them to the terminal
strip at the unit.
4. Wrap tape around any exposed foil shield and/or base
shield wire.
Note: The communication link is polarity sensitive.
Figure 29. Dressing shielded twisted wire
Communication Link (Shielded Twisted

Pair) Wiring

1. Trim the outer covering of the shielded cable back
approximately 1 inch. See the "Dressing shielded
twisted wire" figure above. Do not cut the bare shield
wire off.
2. Strip approximately 1/2–inch of insulation from each
insulated wire to connect them to the terminal strip at
the remote panel.
3. Connect the white lead to the positive (+) terminal, the
SCXF-SVX01T-EN
for recommended wiring
Table 25, p. 45
and connect one end of the
black lead to the negative (-) terminal, and the bare
shield wire to the terminal at the remote human
interface panel.
4. Close the key pad plate and install and tighten the two
screws removed earlier.
5. Close the outer door and install the recessed locking
screw at the bottom right hand side of the enclosure to
prevent accidental starting of the unit by unauthorized
personnel while completing the wiring at the self-
contained unit.

At the Self-Contained Unit

1. Connect the opposite end of the three conductor 24-
volt wire to the appropriate terminal strip as follows:
Note: Although the 24 volt power is not polarity
sensitive, do not connect either the + (plus) or -
(minus) terminals from the remote panel to
ground at the self-contained unit.
2. Connect the wire connected to the positive (+) terminal
at the remote panel.
3. Connect the wire connected to the negative (-) terminal
at the remote panel.
4. Connect the ground wire from the remote panel to the
unit control panel casing.
5. Refer to the unit wiring diagram and connect the white
lead to the positive (+) terminal and the black lead to
the negative (-) terminal. (These terminals are
numbered. Reference to color is for clarification to
maintain polarity).
Note: To maintain polarity, do not connect the base
shield wire to ground at the self-contained unit.

Connecting to Tracer Summit

WARNING
Hazardous Voltage w/Capacitors!
Failure to disconnect power and discharge capacitors
before servicing could result in death or serious
injury.
Disconnect all electric power, including remote
disconnects and discharge all motor start/run
capacitors before servicing. Follow proper lockout/
tagout procedures to ensure the power cannot be
inadvertently energized. For variable frequency drives
or other energy storing components provided by
Trane or others, refer to the appropriate
manufacturer's literature for allowable waiting periods
for discharge of capacitors. Verify with a CAT III or IV
voltmeter rated per NFPA 70E that all capacitors have
discharged.
IntelliPak™ commercial self-contained (CSC) units operate
with Trane building automation software, Tracer Summit
version 10.0.4 or later or any OS2 operating system.
Installation - Electrical
47