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61
COMPLETING THE INSTALLATION
This section provides instructions on how to perform a final check
of the installation. Do not energize the VFD circuit breaker. This
should only be done by qualified Carrier personnel in accordance
with the 23XRV Start-Up and Service Manual.
Checking the Installation
Use the following procedure to verify the condition of the
installation:
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.
a. For LF-2 VFD, verify that the status LEDs on the DPI
communications interface board are not lit. See Fig. 61.
The location of the communications interface board is
shown in Fig. 10.
b. For Std Tier VFD, verify that the keypad and drive status
indicators (Fig. 62) are not lit. The location of the drive
status indicator is shown in Fig. 11.
3. Remove any debris, such as metal shavings, from the
enclosure.
4. Check that there is adequate clearance around the machine in
accordance with the certified print.
5. Verify that the wiring to the terminal strip and the AC input
power terminals is correct.
6. Check that the wire size is within terminal specifications and
that the wires are tightened properly.
7. Check that specified branch circuit protection is installed and
correctly rated.
8. Check that the incoming power is rated correctly.
9. 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.
Oil Pump and Oil Heater
The oil pump and oil heater are wired at the factory. It is not neces-
sary to connect additional wiring to these components. See
Fig. 65-67.
Fig. 65 — Oil Pump Wiring
Fig. 66 — Oil Heater and Control Power Wiring
Fig. 67 — Oil Heater and Control Power Wiring,
Dual-Stage Oil Heater
Connect Control Wiring
All control wiring must use shielded cable. Refer to the job wiring
diagrams for cable type and cable number. Make sure the control
circuit is grounded in accordance with applicable electrical codes
and instructions on machine control wiring label.
Carrier Comfort Network Interface
If required, the Carrier Comfort Network
®
(CCN) communication
bus wiring is supplied and installed by the electrical contractor. It
consists of shielded, 3-conductor cable with drain wire.
The system elements are connected to the communication bus in a
daisy chain arrangement. The positive pin of each system element
communication connector must be wired to the positive pins of the
system element on either side of it. The negative pins must be
wired to the negative pins. The signal ground pins must be wired
to the signal ground pins. The CCN network connections can be
wired to terminal strip 7TB where it is labeled CCN (+, -, G).
NOTE: Conductors and drain wire must be 20 AWG (Ameri-
can Wire Gauge) minimum stranded, tinned copper. Individual
conductors must be insulated with PVC, PVC/nylon, vinyl,
Teflon
1
, or polyethylene. An aluminum/polyester 100% foil
shield and an outer jacket of PVC, PVC/nylon, chrome vinyl,
or Teflon with a minimum operating temperature range of –4°F
to 140°F (–20°C to 60°C) is required. See Table 22 for cables
that meet the requirements.
WARNING
DC bus capacitors in the VFD retain hazardous voltages after
input power has been disconnected. After disconnecting input
power, wait 5 minutes for the DC bus capacitors to discharge
then check both the VFD DPI communications interface board
status LEDs and the VFD with a voltmeter to ensure the DC
bus capacitors are discharged before touching any internal
components. Failure to observe this precaution could result in
severe bodily injury or loss of life.
WARNING
Voltage to input terminals on the 1C and 6C contactors comes
from a control transformer in the starter built to Carrier specifi-
cations. Do not connect an outside source of control power to
the chiller contactors. An outside power source will produce
dangerous voltage at the line side of the starter, because sup-
plying voltage at the transformer secondary terminals produces
input level voltage at the transformer primary terminals (see
1. Teflon is a registered trademark of DuPont.
LEGEND
Factory Wiring
Power Panel Component Terminal
Contactor
OIL PUMP
MOTOR
(100W)
2C
2C
BLK
WHT
RED
WIRE CRIMP
JUMPER
BLU
14
11
24
21
MTR
YEL
1
2
CN1A
FROM CONTROL
TRANSFORMER #1
115VAC 4KVA
(BLK)
(WHT)
POWER
SPLICE 1
POWER
SPLICE 4
LEGEND
Factory Wiring
Power Panel Component Terminal
(WHT)
(BLK)
PRIMARY
OIL HEATER
(500W)
1C
1C
(BLK)
(WHT)
14
11
24
21
1
2
CN1A
FROM CONTROL
TRANSFORMER #1
115VAC 4KVA
(BLK)
(WHT)
POWER
SPLICE 1
POWER
SPLICE 1
(WHT)
(BLK)
POWER SPLICE_7
POWER SPLICE_8
FROM CONTROL
TRANSFORMER #1
115VAC 4KVA
VAPORIZER
HEATER
(1500W)
SECONDARY
OIL HEATER
(1000W)
5C
6C
6C
5C
(BLK)
(WHT)
(BLK)
(WHT)
(BLK)
(WHT)
1
2
1
2
3
1
2
3
4
3
4
3
2
1
2
1
CN1B
Summary of Contents for AquaEdge 23XRV
Page 53: ...53 Fig 58 23XRV Controls Schematic ...
Page 54: ...54 Fig 58 23XRV Controls Schematic cont FROM 2000767952 SHEET 3 ...
Page 55: ...55 Fig 58 23XRV Controls Schematic cont ...
Page 56: ...56 Fig 59 23XRV Controls Schematic Rockwell Standard Tier VFD Shown ...
Page 57: ...57 Fig 60 23XRV LF2 VFD Wiring Diagram ...
Page 65: ...65 Fig 70 23XRV Insulation Area Units with P Compressor ...