51
Table 21 — Relief Valve Locations
NOTE: All valves relieve at 185 psig (1275 kPa).
Step 7 — Make Electrical Connections —
Field
wiring must be installed in accordance with job wiring dia-
grams and all applicable electrical codes. Refer to Fig. 60-62
for typical wiring and component layout.
These instructions are intended for qualified electrical per-
sonnel familiar with servicing and installing AC drives. Any
questions or problems with the products described in this man-
ual should be directed to your local Carrier Service Office.
Wiring diagrams in this publication are for reference only
and are not intended for use during actual installation; follow
job specific wiring diagrams.
GROUNDING THE CONTROLS/DRIVE ENCLOSURE —
Use the following steps to ground the drive.
1. Open the left door of the control center.
2. Run a suitable equipment grounding conductor unbroken
from the drive to earth ground. Tighten these grounding
connections to the proper torque. See Fig. 10, 11 and 41.
3. Close the door to the control center.
INSTALLING INPUT POWER WIRING —
All
wiring
should be installed in conformance with the applicable local, na-
tional, and international codes (e.g., NEC/CEC). Signal wiring,
control wiring, and power wiring must be routed in separate
conduits to prevent interference with the drive operation. 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, lock out, and tag the input power to the drive.
2. Remove the input power wiring panel above the VFD
circuit breaker and drill the number of openings for the
AC input leads (refer to Fig. 10 and 11). Mount all con-
duit hardware on the input power wiring panel before re-
installing the input power wiring panel on the VFD enclo-
sure. Take care that metal chips and hardware do not enter
the enclosure.
LOCATION
FRAME
SIZE
RELIEF VALVE OUTLET SIZE
QUANTITY WITHOUT
ISOLATION VALVES
QUANTITY WITH
ISOLATION VALVES
DISCHARGE PIPE
ASSEMBLY
3-5
1
1
/
4
-in. NPT FEMALE CONNECTOR
1
1
A,B
1
1
/
4
-in. NPT FEMALE CONNECTOR
N/A
1
COOLER
3-5, A,B
1
1
/
4
-in. NPT FEMALE CONNECTOR
2
1
CONDENSER
3-5, A,B
1
1
/
4
-in. NPT FEMALE CONNECTOR
2
2
OPTIONAL STORAGE TANK
N/A
1-in. NPT FEMALE CONNECTOR
2
2
DANGER
Only qualified electrical personnel familiar with the con-
struction and operation of this equipment and the hazards
involved should install, adjust, operate, or service this
equipment. Read and understand this manual and other
applicable manuals in their entirety before proceeding.
Failure to observe this precaution could result in severe
bodily injury or loss of life.
WARNING
DC bus capacitors in the VFD retain hazardous voltages
after input power has been disconnected. After disconnect-
ing input power, wait 5 minutes for the DC bus capacitors
to discharge then check both the VFD DPI communica-
tions interface board status LEDs and the VFD with a volt-
meter 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.
DANGER
The drive can operate at and maintain zero speed. The user
is responsible for assuring safe conditions for operating
personnel by providing suitable guards, audible or visual
alarms, or other devices to indicate that the drive is operat-
ing or may operate at or near zero speed. Failure to observe
this precaution could result in severe bodily injury or loss
of life.
DANGER
Do not install modification kits with power applied to the
drive. Disconnect and lockout incoming power before
attempting such installation or removal. Failure to observe
this precaution could result in severe bodily injury or loss
of life.
DANGER
The drive contains ESD (Electrostatic Discharge) sensitive
parts and assemblies. Static control precautions are
required when installing, testing, servicing, or repairing the
drive. Erratic machine operation and damage to, or destruc-
tion of, equipment can result if this procedure is not
followed. Failure to observe this precaution could result in
bodily injury.
CAUTION
The user is responsible for conforming with all applicable
local, national and international codes. Failure to observe
this precaution could result in damage to, or destruction of,
the equipment.
CAUTION
Do not attempt to start compressor (even for a rotation
check) or apply test voltage of any kind while machine is
under dehydration vacuum. Motor insulation breakdown
and serious damage may result.
CAUTION
Low oil level may result if the oil pump is manually oper-
ated for more than a few minutes when the chiller is not
running. The oil reclaim system does not return oil to the
sump when the compressor is de-energized.
Summary of Contents for EVERGREEN 23XRV
Page 53: ...53 Fig 60 Typical Field Wiring Schematic LF 2 VFD Shown NOTE See Notes for Fig 60 on page 56 ...
Page 54: ...54 Fig 60 Typical Field Wiring Schematic LF 2 VFD Shown cont a23 1585 ...
Page 55: ...55 Fig 60 Typical Field Wiring Schematic LF 2 VFD Shown cont a23 1586 ...
Page 60: ...60 Fig 63 23XRV Controls Schematic LF 2 ...
Page 64: ...64 FROM PREVIOUS PAGE Fig 67 23XRV Controls Schematic Rockwell Standard Tier VFD Shown cont ...
