Wiring Field Wiring Terminal Strips (7Tb); Connect Control Inputs; Connect Control Outputs; Connect Starter - Carrier AquaEdge 23XRV Installation Instructions Manual
High-efficiency variable speed screw chiller with greenspeed intelligence and pic6 controls 50/60 hz r-134a
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WIRING FIELD WIRING TERMINAL STRIPS (7TB)
The 7TB control terminal block is located inside the right most
compartment slightly left of the PIC6 HMI. See Fig. 58-61.
NOTE: Up to 30 v may be measured across open contact termi-
nals on the hazardous voltage terminal strip.
1.
Turn off, lock out, and tag the input power to the drive. Wait
5 minutes.
2.
Verify that there is no voltage at the input terminals (L1, L2,
and L3) of the power module.
3.
Verify that the status LEDs on the communications interface
board are not lit. See Fig. 62. The location of the communica-
tions interface board is shown in Fig. 10.
4.
Use a screwdriver to remove conduit twist outs in the con-
trol panel. Do not punch holes or drill into the top surface of
the control center enclosure for field wiring. Knockouts are
provided in the back of the control center for field wiring
connections.
5.
Connect the control wiring as shown in Fig. 57. Tighten all
connections to 7 to 9 in.-lb.
CONNECT CONTROL INPUTS
Wiring may be specified for a spare safety switch, and a re-
mote start/stop contact can be wired to the appropriate 7TB
Field Wiring terminal. Additional inputs may be specified as
well. These are wired to the machine control panel as indicated
in Fig. 63.
CONNECT CONTROL OUTPUTS
Connect auxiliary equipment such as chilled and condenser water
pumps, and spare alarms as required and indicated on job wiring
drawings. Connect as per 7TB Field Terminal Wiring table.
CONNECT STARTER
The 23XRV chiller is equipped with a unit-mounted VFD starter
(Fig. 64).
IMPORTANT: Be sure to ground the power circuit in accor-
dance with the National Electrical Code (NEC), applicable
local codes, and job wiring diagrams. Also, make sure correct
phasing is observed for proper rotation.
Do not punch holes or drill into the top surface of the control
center, as unit damage could occur. Knockouts are provided in
the back of the control center for wiring connections.
Remove the VFD shipping bracket shown in Fig. 23 for typical in-
stallations. For seismic units, do not remove the shipping bracket.
52
CAUTION
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