Carrier AquaEdge 19XR series Installation Instructions Manual page 55

Free-Standing, Field-Installed Starter or VFD — Assemble
and install compressor terminal box in desired orientation, and
cut necessary conduit openings in conduit support plates. See
Fig. 32-36. Attach power leads to compressor terminals in ac-
cordance with job wiring drawings, observing caution label in
terminal box. Use only copper conductors. The motor must be
grounded in accordance with NEC (National Electrical Code),
applicable local codes, and job wiring diagrams. Installer is re-
sponsible for any damage caused by improper wiring between
starter and compressor motor.
IMPORTANT: Do not insulate terminals until wiring
arrangement has been checked and approved by Carrier
start-up personnel. Also, make sure correct phasing is fol-
lowed for proper motor rotation.
VFD OR STARTER
LEGEND
1 — Disconnect
2 — Free-standing Compressor Motor Starter
3 — Compressor Motor Terminal Box
4 — Power Panel
5 — Control Panel
6 — Vents
7 — Pressure Gages
8 — Chilled Water Pump
9 — Condenser Water Pump
10 — Chilled Water Pump Starter
11 — Condensing Water Pump Starter
12 — Cooling Tower Fan Starter
(Low Fan, High Fan)
13 — Disconnect
14 — Oil Pump Disconnect (See Note 3)
15 — Strainers
Piping
Control Wiring
Power Wiring
15
a19-2069
Fig. 32 — 19XR with Free-Standing Starter or VFD
Insulate Motor Terminals and Lead Wire Ends — Insulate
compressor motor terminals, lead wire ends, and electrical
wires to prevent moisture condensation and electrical arcing.
For low-voltage units (up to 600 v), obtain insulation material
from machine shipping package consisting of 3 rolls of insula-
tion putty and one roll of vinyl tape.
1. Insulate each terminal by wrapping with one layer of in-
sulation putty.
2. Overwrap putty with 4 layers of vinyl tape.
High Voltage Units — High-voltage units require special ter-
minal preparation. Follow local electrical codes for high-volt-
age installation. Vinyl tape is not acceptable; a high voltage
terminal method must be used.
IMPORTANT: Wiring and piping shown are for general point-of-
connection only and are not intended to show details for a spe-
cific installation. Certified field wiring and dimensional diagrams
are available on request.
NOTES:
1. All wiring must comply with applicable codes.
2. Wiring not shown for optional devices such as:
• Remote Start/Stop
• Remote Alarms
• Optional Safety Device
• 4 to 20 mA Resets
• Optional Remote Sensors
3. Oil pump disconnect may be located within the enclosure of
Item 2 — Free-standing Compressor Motor Starter.
4. IMPORTANT: Carrier suggests that a structural engineer be
consulted if transmission of vibrations from mechanical equip-
ment is of concern.
5. Isolation valves are recommended on the cooler and condenser
piping to each chiller for service.
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