RT-SVX34V-EN
29
Low Voltage Wiring
An overall layout of the various control options available is
illustrated in . The required number of conductors for each
control device are listed in the illustration.
A typical field connection diagram for the sensors and other
options are shown in the following section “Remote Panels
and Sensors”. These diagrams are representative of
standard applications and are provided for general
reference only. Always refer to the wiring diagram that
shipped with the unit for specific electrical schematic and
connection information.
Note: All field wiring must conform to NEC guidelines as
well as state and local codes.
Control Power Transformer
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury.
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Verify that no power is
present with a voltmeter.
The 24 volt control power transformers are equipped with
internal circuit breakers. They are to be used only with the
accessories called out in this manual. If a circuit breaker
trips, be sure to turn off all power to the unit before
attempting to reset it.
Field Installed AC Control Wiring
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury.
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Verify that no power is
present with a voltmeter.
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury.
All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements
for field wiring installation and grounding as
described in NEC and your local/state/national
electrical codes.
NOTICE
Use Copper Conductors Only!
Failure to use copper conductors could result in
equipment damage as the equipment was not
designed or qualified to accept other types of
conductors.
NOTICE
Component Failure!
Resistance in excess of 3 ohms per conductor could
result in component failure due to insufficient AC
voltage supply.
Do not exceed three (3) ohms per conductor for the
length of the run.
Table 8. Shielded twisted pair cable part numbers
Part Number
Description
CAB01568
Cable, COMLINK cable with a
PVC jacket, 18/1 PR, stranded
shield, 25PF plenum, 100 foot
length
CAB01569
Cable, COMLINK cable with a
PVC jacket, 18/1 PR, stranded
shield, 25PF plenum, 1,000 foot
length
Before installing any connecting wiring, refer to Table 9, p.
30 for conductor sizing guidelines and;
• Use copper conductors unless otherwise specified.
• Ensure that the AC control voltage wiring between the
controls and the unit's termination point does not
exceed three (3) ohms/conductor for the length of the
run.
• Refer to dimensional information beginning with for the
electrical access locations provided on the unit.
• Do not run the AC low voltage wiring in the same
conduit with the high voltage power supply wiring.
Be sure to check all loads and conductors for grounds,
shorts, and miswiring. After correcting any discrepancies,
reset the circuit breakers by pressing the black button
located on the left side of the transformer.
Installation Electrical
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