Trane Foundation GCC180-300, Установка, эксплуатация и обслуживание

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RT-SVX51L-EN 29
the base or through the front corner post where the
disconnect enclosure is mounted. The hole is sized for
1 1/2–in. conduit.
2. If the conduit required for your application is larger than
1 1/2–in., 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.
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.
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 30. Field wiring route
Through the Base Gas Utility
Option
This section contains the instructions for making field
connections to the Through the Base Gas Utility Option.
Field Installed Connections
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 a CAT III or IV
voltmeter rated per NFPA 70E that all capacitors have
discharged.
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.
Important: All phases of this installation must comply with
NATIONAL, STATE, and LOCAL CODES. In
absence of local codes, the installation must
conform with American National Standard-
Z223.1a- National Fuel Gas Code Latest
Revision.
1. Field connections are made by first removing the
access panel for the heat section on the front of the
unit.
2. The gas piping assembly ships inside this section and
includes the shut-off valve, a pressure tap for testing,
and the necessary unions for field connection. For
through the base access, remove the factory-provided
cap from the base pan opening. See
Figure 31, p. 30 .
3. Route field piping through this hole to the dimension
shown in Table 6, p. 29 .
4. Place the assembly through the cabinet opening as
shown in Table 6, p. 29 and make the union connection
to the field piping and to the gas train. Refer to the
“Heating Operation (for Gas Units) - Standard
Economizer,” p. 33
for startup instructions.
Table 6. Through the base gas piping dimension
Model Dimension
G*C180-300 1 3/16–in.
Installation