19XR (PIC II) Hermetic Centrifugal Liquid Chillers 50 Hz - Carrier

3.6.4 - Make the necessary connections for the outgoing
control signals
Connect the auxiliary equipment, the chilled water pumps and
the condenser water pumps, as well as the additional alarms, as
indicated in the job wiring diagrams.
3.6.5 - Connect the starting cabinet
The 19XR is available either with a unit-mounted, factoryinstalled
starter cabinet (optional), or with a freestanding, fieldinstalled
starter (Figs. 22 and 23).
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1. Disconnect
2. Unit mounted starter with control (factory-installed)
3. Guide vane motor
4. Oil pump terminal box
5. Vents
6. Pressure gauges
7. Chilled water pump
8. Condenser water pump
9. Chilled water pump starter
10. Condenser water pump starter
11. Cooling tower fan starter
12. To cooling tower
13. From cooling tower
14. To load
15. From load
16. Drain
17. Piping
18. Control wiring
19. Power wiring
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13
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Fig. 22 - 19XR with optional unit-mounted starter
3.6.5.1 - Unit-mounted factory-installed starter cabinet
Connect the power leads of the auxiliary equipment, chilled
and condenser water pump as well as the associated alarms,
using the conductor provided (see Fig. 22).
NOTE:
Connection of power leads:
When the section switch is chosen as a main circuitbreaker
device, it is necessary to install a protection
against short circuits upstream of the cabinet.
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IMPORTANT: Ensure correct phasing is followed for proper
motor rotation.
NOTES:
1. Wiring and piping shown are for general point-ofconnection
only and are not intended to show details for a
specific installation. Certified field wiring and dimensional
diagrams 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
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