Specifications

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19XR/19XRV

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The Carrier 19XR/19XRV centrifugal chillers provide

exceptional value by achieving energy efﬁciency levels as

high as 6.8 (EER) utilising proven technology designed

speciﬁcally for chlorine-free refrigerants:

■ Unique concept of the hermetic compressor:

- Single-stage aerodynamic impeller

- Tunnel diffusers, based on aircraft engine technology

- Motor cooled by refrigerant gas injection

■ Possibility to control the compressors using a variable-

frequency drive (19XRV) to maximise machine energy

efﬁciency.

■ Use of high-efﬁciency evaporator and condenser tubes

■ Expansion sub-cooler integrated into the condenser

■ Patented ﬂoat valve technology for optimised sub-cooling

and refrigerant level in the evaporator

These advantages, together with the modularity of the units

and their efﬁciency, economical operation and dimensional

constraints allow the use of the Carrier 19XR/19XRV

centrifugal chillers in any high-capacity water cooling

applications.

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■■ HFC-134a■-■an■environmentally-sound■solution

The 19XR/19XRV chillers use chlorine-free HFC-134a

refrigerant with zero ozone-depletion potential, still the

refrigerant of choice for automotive and appliance

manufacturers.

■■ Mix-match■capabilities

A complete line of compressors and heat exchangers is

available for these chillers, optimising the machine compo-

nent combination regardless of capacity, lift, and efﬁciency

speciﬁcations.

■■ Heat■exchangers■feature:

European pressure vessel code certiﬁed construction,

ensuring maximum heat exchanger safety, reliability and

long life.

The units also offer a wide choice of possible combinations to

ensure optimised matching of the compressor performance

to the speciﬁc requirements.

■■ Single-stage■hermetic■compressor

This design:

- increases product reliability by eliminating the additional

moving parts associated with multiple stage machines,

such as additional guide vanes and complex economizers.

- eliminates refrigerant leaks from the compressor/motor

transmission joints in open-drive compressors.

Summary of content (14 pages)

PAGE 1
High-Efficiency Hermetic Centrifugal Liquid Chillers Quality and Environment Management System Approval 19XR/19XRV Nominal cooling capacity 1000-5300 kW ■■ ■■ ■■ ■■ ■■ The Carrier 19XR/19XRV centrifugal chillers provide exceptional value by achieving energy efficiency levels as high as 6.
PAGE 2
■■ Compressor with variable-frequency drive (VFD) 19XRV chillers are equipped with a compressor variablefrequency system. By changing the compressor operating mode this system considerably reduces power consumption based on the motor rotational speed. In addition, the variable-frequency drive control box is cooled by refrigerant minimising its size and ensuring optimal component cooling for an extended operating life.
PAGE 3
■■ Alarm file This file maintains the last 25 time- and date-stamped alarm and alter messages in memory; this function reduces troubleshooting time and cost. ■■ Overrides The control system detects conditions which approach protective limits and takes self-corrective action prior to an alarm occurring.
PAGE 4
Refrigeration cycle of the 19XR/19XRV units Suction Motor and oil cooling The compressor continuously draws refrigerant vapour from the evaporator at a rate set by the amount of guide vane opening or the compressor rotation speed. FLASC (flash subcooler) After the condensing phase the liquid refrigerant passes through the orifices into the FLASC chamber (flash subcooler - see figure below). Passing over these orifices a part of the liquid refrigerant flashes to vapour.
PAGE 5
Model number nomenclature Service number: 19XR_50 52 4V6 LFH 52 Unit designation 19XR or 19XRV Motor voltage code Model: 19XR 50 52 --- 001--EE-- Unit designation 19XR / 19XV Evaporator size - 6 sizes - 3 lengths Motor efficiency code S: standard H: high efficiency Evaporator size - 6 sizes - 3 lengths Condenser size - 6 sizes - 3 lengths Motor code Condenser size - 6 sizes - 3 lengths Unit produced in Montuel Chronological number Compressor code 4 sizes (2-3-4-5) Options and accessories Optio
PAGE 6
Physical data, 19XR/19XRV units Unit operating weight 19XR size Operating weight* With starter (option 25) Without starter** 19XR size Operating weight* With starter (option 25) Without starter** 3030 3232 3535 3737 4040 4242 4545 4747 5050 5252 5555 5757 kg kg 7300 7300 6060 7700 7700 6262 7800 7800 6565 8300 8300 6767 9000 9000 7070 9500 9500 7272 9800 9800 7575 10400 10400 7777 11400 11190 8080 12000 11790 8282 12300 12090 8585 12900 12690 8787 kg kg 12600 12390 13400 13190
PAGE 7
19XR/XRV Machine components Front view 1 3 Rear view 2 8 15 18 16 19 17 4 32 20 5 14 6 21 13 12 11 31 10 9 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17.
PAGE 8
Electrical data, 19XR/XRV units Standard voltages for 50 Hz units Nominal voltage, V 400 690 3000 3300 6300 11000 Operating range, V 380 to 415 656 to 716 2900 to 3100 3200 to 3400 6000 to 6600 10800 to 11200 NOTES: Motor nameplates can be stamped for any voltage within the listed supply/voltage range. Chillers shall not be selected at voltages above or below the listed supply voltage range. The installer is responsible for the installation arrangement of the machine power supply.
PAGE 9
Standard waterboxes and nozzle arrangements 19XR/19XRV frames 3 - 4 - 5- 6 W X Y Z Motor side Compressor side Condenser Evaporator * Code shown in certified drawings NOTE: Non-certified drawings. Refer to the certified dimensional drawings supplied with the unit or available on request, when designing an installation.
PAGE 10
Marine waterboxes and nozzle arrangements - 19XR/19XRV Frame 3 Nozzle arrangement codes for all 19XR/19XRV marine waterboxes Pass 1 2 3 Evaporator waterbox Inlet Outlet Arrangement code* 8 5 A 5 8 B 7 9 C 4 6 D 7 6 E 4 9 F Condenser waterbox Inlet Outlet 10 12 1 3 - Arrangement code* R S - W X Y Z Motor side Compressor side Condenser Evaporator * Code shown in certified drawings NOTE: Non-certified drawings.
PAGE 11
Application data, anti-vibration platform Standard isolation Level base line 1. 2. Machine foot Anti-vibration platform Shear flex pad NOTE: The isolation package includes four shear flex pads. Levelling support pate for 19XR/XRV units (option) Machine foot (side view) System base (concrete) Anti-vibration platform Soleplate Adjusting pads Adjusting screws 1. 2. 3. 4. NOTE: 1.
PAGE 12
Guide specification Water-cooled packaged liquid chiller for indoor installation, equipped with numerical control, and operating with chlorine-free refrigerant HFC-134a. ■■ Regulations The unit characteristics must be published in accordance with ARI standards.
PAGE 13
Typical piping and wiring for 19XR/19XRV units Unit with unit-mounted starter/variable-frequency drive 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16.
PAGE 14
Order No.: 11988-20.11.2009. Supersedes order No.: 11995-20, 05.2004. Manufactured by: Carrier SCS, Montluel, France. Manufacturer reserves the right to change any product specifications without notice. Printed in the Netherlands. The images in this document are solely for illustrative purposes, and are not contractually binding.