Factory-Mounted Unit Options; Unit Disconnect (Fiyudc) - Trane GBC036-060 Installation, Operation And Maintenance Manual

Packaged rooftop air conditioners foundation electric/electric
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Factory-Mounted Unit Options

Unit Disconnect (FIYUDC)

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. Verify with an appropriate
voltmeter that all capacitors have discharged.
For additional information regarding the safe discharge
of capacitors, see PROD-SVB06*-EN
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 electrical codes.
Important:
All phases of this installation must comply
with NATIONAL, STATE, and LOCAL
CODES. In addition to local codes, the
installation must comply with National
Electric Code - ANSI/NFPA NO. 70 LATEST
REVISION.
1. Field connections are made by first removing the
compressor access panel on the front of the unit.
Unscrew the assembly around the outside of the
disconnect switch. This assembly is located in the
condenser section of the unit.
For down flow configurations, the hole in the base
section is for both high and low voltage power wiring
on down flow units. Horizontal units will route through
the holes in the front corner post where the disconnect
enclosure is mounted. The hole is sized for 1 1/2"
conduit.
2. If the conduit required for your application is larger,
remove the termination plate and connect to the larger
hole using field supplied reducing washers.
3. Route the power wires and ground conductor through
conduit and into the bottom of the factory installed
disconnect switch. Connect the power conductors to
the lugs provided. Connect the ground wire to the unit
ground lug.
RT-SVX058D-EN
Note: Wire size for the length of run should be
determined using the circuit ampacity found on
the unit nameplate and the N.E.C.
4. Route low voltage (class II), control wiring through
hole in base of unit but not through high voltage
conduit (refer to
Figure 15, p. 18
conduits location). Feed control wiring through
bushing provided on side panel. Route wires through
loose wire ties provided.
5. Tighten the wire ties. Secure the excess wire bundle
under the wire ties in the outdoor section. Do not leave
excess wire in the electrical enclosure. Use the unit
wiring diagram to make the low voltage connections.
Figure 19. Field wiring routing - factory installed
disconnect switch
for high and low volt.
23

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