Connect Control Outputs; Connect Starter - Carrier 19XL Installation Instructions Manual

CONNECT CONTROL OUTPUTS — Connect auxiliary
equipment, chilled and condenser water pumps, and spare
alarms as required and indicated on job wiring drawings.
CONNECT STARTER — The 19XL is available with either
a unit-mounted, factory-installed starter or a free-standing,
field-installed starter (Fig. 24 and 25).
Unit Mounted, Factory-Installed Starter— Attach power leads
by connecting them from inside the starter cabinet to the line
side circuit breaker terminals. See Fig. 24 and 26. Chillers
with electro-mechanical starters (wye-delta) will have a top
hat shipped with the chiller if the RLA (rated load amps) is
greater than 432 amps. The top hat is shipped in the knocked-
down position and must be assembled and installed on top
LEGEND
1 — Disconnect
2 — Unit Mounted Starter
3 — Control Cabinet
4 — Power Panel
5 — Vents
6 — Pressure Gages
7 — Chilled Water Pump
8 — Condenser Water Pump
9 — Chilled Water Pump Starter
10 — Condensing Water Pump Starter
11 — Cooling Tower Fan Starter
TO
LOAD
NOTES:
1. Wiring and piping shown are for general point-of-connection only and are not intended
to show details for a specific installation. Certified field wiring and dimensional dia-
grams are available on request.
2. All wiring must comply with applicable codes.
3. Refer to Carrier System Design Manual for details regarding piping techniques.
4. Wiring not shown for optional devices such as:
• remote start-stop
• remote alarm
• optional safety device
• 4 to 20 mA resets
• optional remote sensors
Fig. 24 — 19XL With Optional Unit-Mounted Starter
of the starter cabinet, over the line side circuit breaker. Dur-
ing assembly, remove the access plate and use it as the cover
piece of the top hat. The top hat provides additional wire
bending space to attach line side power leads to the circuit
breaker within the starter. The solid-state starter does not re-
quire a top hat.
IMPORTANT: Be sure to ground the power circuit in
accordance with the National Electrical Code (NEC),
applicable local codes, and job wiring diagrams. Also,
make sure correct phasing is observed for proper
rotation.
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