Unit installation

Installation - Electrical
SCXF-SVX01K-EN 49
Interprocessor Communication Bridge Module
Wiring
Refer to Figure 33, p. 49 and trim the outer covering of the
shielded cable back approximately one inch. Cut the bare
shield wire off even with the outer covering. Strip
approximately 1/2-inch of insulation from each insulated
wire in order to connect them to the terminal strip at the
unit.Wrap tape around any exposed foil shield and/or base
shield wire.
Note: The communication link is polarity sensitive.
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 toTracer Summit
IntelliPak™ commercial self-contained (CSC) units operate
withTrane building automation software,Tracer Summit
version 10.0.4 or later or any OS2 operating system.
Note: Tape the non-insulated end of the shield on
shielded wire at the unit. Any connection between
the shield and ground will cause a malfunction. If
daisy-chained in the unit, splice and tape the
shields to prevent contact with ground.
Communication Wiring
Note: Communication link wiring is a shielded, twisted
pair of wire and must comply with applicable
electrical codes.
An optional communication link provides a serial
communication interface (SCI) betweenTracer Summit
and each commercial self-contained (CSC) unit in the
system.The CSC system can have a maximum of 12 CSC
units per connection link toTracer Summit. Use a single 18
AWG shielded, twisted pair wire with stranded, thinned
copper conductors to establish each communication link
betweenTracer Summit and each unit.
Programming the Time Clock
Option
Setting the Time
Important: Depress the reset key before beginning to
set time and program.
1. Select military (24:00 hr.) or AM/PM (12:00 hr.) time
mode by depressing and holding the “h” key while
pressing “+ 1h” key to toggle between military and
AM/PM. (AM appears in the display when in AM/PM
mode.)
2. Press and hold down “” key.
3. If setting the time when daylight savings time is in
ef
fect, press “+ 1h” key once (+ 1h will appear in
display).
4. Set hour with “h” key. If AM or PM does not appear in
display
, the unit is in military time. See note above to
change display.
5. Set minutes with “m” key.
Figure 33. Dressing shielded twisted wire
WARNING
Hazardous Voltage w/Capacitors!
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 byTrane or
others, refer to the appropriate manufacturer’s literature
for allowable waiting periods for discharge of
capacitors. Verify with an appropriate voltmeter that all
capacitors have discharged. Failure to disconnect power
and discharge capacitors before servicing could result in
death or serious injury.
For additional information regarding the safe discharge
of capacitors, see PROD-SVB06A-EN