43
INSTALL CIRCUIT BREAKER HANDLE EXTENSION
(FIG. 25) — Unit-mounted standard tier Frame E765-E1530
and LF2 Frame 900-1169 amp VFDs are shipped with handle
extension for the VFD main circuit breaker strapped to the
VFD mounting frame. This handle extension must be installed
by sliding the clip over the circuit breaker handle (Fig. 26).
Step 5 — Make Electrical Connections — Field
wiring must be installed in accordance with job wiring dia-
grams and all applicable electrical codes.
Wiring diagrams in this publication (Fig. 27-36) are for ref-
erence only and are not intended for use during actual installa-
tion; follow job specific wiring diagrams.
CONNECT CONTROL INPUTS — Wiring may be speci-
fied for a spare safety switch, and a remote start/stop contact
can be wired to the starter terminal strip. Additional spare sen-
sors and Carrier Comfort Network
®
modules may be specified
as well. These are wired to the machine control panel as indi-
cated in Fig. 27. The PIC II control panel optional wiring and
power panel component layout is shown in Fig. 28.
Fig. 25 — Circuit Breaker Handle Extension
a19-2076
CAUTION
Do not run 120-v wiring into the control cabinet. The con-
trol cabinet should only be used for additional extra-low
voltage wiring (50 v maximum). Damage to machine could
result.
CAUTION
Do not attempt to start compressor or oil pump (even for a
rotation check) or apply test voltage of any kind while
either chiller module is under dehydration vacuum. Motor
insulation breakdown and serious damage may result.
CIRCUIT
BREAKER
HANDLE
EXTENSION
UNIT-MOUNTED
VFD
a19-2074
Fig. 26 — Circuit Breaker Handle Extension Installed
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