Ingersoll-Rand TRANE AFDJ, Инструкция по установке, эксплуатации и обслуживанию

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38 AFDJ-SVU01D-EN
Wiring
Input Power, Drive-to-Motor, and
Control Wiring
This section explains the required field wiring for each
chiller motor and drive.
Note: For Duplex™ chillers, this will be required for both
Circuit 1 and Circuit 2.
For AWG/MCM equivalents in mm
2
, refer to Table 7 :
Important: Customers are responsible for all field
wiring in compliance with local, national,
and/or international codes.
Installing Input Power Wiring
Standard Cabinet
Use the following steps to connect AC input power to the
cabinet:
Important:
• Before servicing, disconnect all power sources and
allow at least 40 minutes for capacitors to discharge.
• All electrical enclosures-unit or remote-are IP2X.
1. Turn off, lock out, and tag the input power to the drive.
2. Remove the plate from the section of the drive
enclosure where the wires will enter.
3. Once removed, drill the wire routing holes in the panel.
These wire routing holes are the only entry points for
input power wiring into the cabinet.
4. Install the appropriate conduit hubs.
5. Reinstall the cabinet’s panel.
6. Connect the three-phase input power leads to circuit
breaker terminals L1, L2, and L3. Tighten these
connections to 30 ft·lb (40.7 N·m). Use only copper-
conductors for the input power leads Input power
wiring should be copper and should be sized according
to applicable codes to handle the drive’s continuous
rated input current.
Refer to submittals for power lug sizes and location along
with control wiring specifics for the controller.
Important: Power connections should be re-torqued
after the first three to six months of
operation and on an annual basis thereafter.
Table 7. Wire sizing reference
AWG/MCM mm
2
equivalent
22 0.32
21 0.35
20 0.5
18 0.75
17 1.0
16 1.5
14 2.5
12 4
10 6
8 10
6 16
4 25
2 or 1 35
1/0 50
2/0 70
2/0 or 3/0 95
4/0 or 250 120
300 150
350 or 400 185
450 or 500 240
Note:
AWG = American Wire Gauge
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 by Trane
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.
NOTICE:
Equipment Failure!
Do not cut holes in adaptive frequency drive enclosure.
Debris falling inside of adaptive frequency drive could
cause failure of electronic components which could
result in damaged equipment.