Input Power Wiring - Carrier 19XRV Start-Up, Operation And Maintenance Instructions Manual

Fig. 33 — VFD Nameplate
LF20 = LiquiFlo 2.0
Continuous Ampere Rating
and Frame Size
Coolant Method
R = refrigerant R134a
Fig. 34 — Identifying the Drive Model Number
IDENTIFYING THE DRIVE BY PART NUMBER — Each
AC drive can be identified by its assembly number. See
Fig. 33. This number appears on the shipping label and on the
drive's nameplate. LiquiFlo™ 2.0 AC power module can be
identified by its model number. See Fig. 34. This number
appears on the shipping label and on the power module's
nameplate. Power ratings are provided in Table 12.
BE AWARE that certain automatic start arrangements can
engage the VFD. Open the disconnect ahead of the VFD in
addition to shutting off the chiller or pump. Failure to do so
could result in serious personal injury or death from elec-
tric shock.
The main disconnect on the VFD front panel may not deen-
ergize all internal circuits. Open all internal and remote
disconnects before servicing the VFD. Failure to do so could
result in serious personal injury or death from electric shock.
PART NUMBER
19XVA2AA__________
19XVA2CC__________
19XVA4CC__________
*110% output current capability for 1 minute. 150% output current capability for 5 sec.
a19-1723
LF20 0608CC
R
a19-1629
Table 12 — Drive Assembly and Power Module Ratings
FRAME ENCLOSURE
SIZE
2AA
2CC
4CC
Input Power Wiring —
conformance with applicable local, national, and international
codes. Use grommets, when hubs are not provided, to guard
against wire chafing.
Use the following steps to connect AC input power to the
main input circuit breaker:
1. Turn off, lockout, and tag the input power to the drive.
2. Remove the input wiring panel and drill the required
number of openings in the top of the drive enclosure.
Take care that metal chips do not enter the enclosure.
3. Wire the AC input power leads by routing them through
the openings to the main input circuit breaker.
Do not route control wiring carrying 30 v or less within a
conduit carrying 50 v or higher. Failure to observe this
precaution could result in electromagnetic interference in
the control wiring.
4. Connect the three-phase AC input power leads (per job
specification) to the appropriate input terminals of the
circuit breaker.
5. Tighten the AC input power terminals to the proper
torque as specified on the input circuit breaker.
Checking the Installation —
structions to verify the condition of the installation:
1. Turn off, lockout, and tag the input power to the drive.
2. Wait a minimum of 5 minutes for the DC bus to discharge.
3. All wiring should be installed in conformance with the
applicable local, national, and international codes (e.g.,
NEC/CEC).
4. Remove any debris, such as metal shavings, from the
enclosure.
5. Check that there is adequate clearance around the
machine.
6. Verify that the wiring to the terminal strip and the power
terminals is correct.
7. Verify that all of the VFD power module circuit board
connectors are fully engaged and taped in place.
8. Check that the wire size is within terminal specifications
and that the wires are tightened properly.
9. Check that specified branch circuit protection is installed
and correctly rated.
10. Check that the incoming power is within ± 10% of chiller
nameplate voltage.
11. Verify that a properly sized ground wire is installed and a
suitable earth ground is used. Check for and eliminate any
grounds between the power leads. Verify that all ground
leads are unbroken.
NAMEPLATE
INPUT
RATING VOLTAGE
(V)
380 TO
NEMA 1
460
62
All wiring should be installed in
Use the following in-
MAX
MAX
OUTPUT
INPUT
CURRENT
CURRENT
AT 4 kHz*
(AMPS)
(AMPS)
442 442
608 608
1169 1169