Specifications

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High-Efficiency Hermetic Centrifugal Liquid Chillers

19XR

Nominal cooling capacity 1000-5300 kW

Carrier’s Evergreen centrifugal chillers provide exceptional

value by achieving energy efficiency levels as high as 6.8

(COP) utilizing proven technology designed specifically for

chlorine-free refrigerant:

■ Unique concept of the hermetic compressor:

- Single-stage aerodynamic impeller

- Tunnel diffusers, based on aircraft engine technology

- Motor cooled by refrigerant gas injection

■ 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 Evergreen centrifugal

chillers in any high-capacity water cooling applications.

Features

■ Environmentally-preferred HFC-134a refrigerant

The Evergreen chillers use chlorine-free HFC-134a

refrigerant with zero ozone-depletion potential, the

refrigerant of choice for automotive and appliance

manufacturers.

■ Mix-match capabilities

The chillers provide a complete line of compressors and heat

exchangers, ensuring the optimal combination of machine

components 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.

■ 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

■ Aerodynamically-contoured impellers

Impellers that utilize high back sweep main blades with low-

profile intermediate splitter blades are aerodynamically

contoured to improve compressor full-load and part-load

operating efficiency.

Evergreen

™

CHILLERS

Summary of content (20 pages)

PAGE 1
High-Efficiency Hermetic Centrifugal Liquid Chillers Evergreen CHILLERS ™ 19XR Nominal cooling capacity 1000-5300 kW Carrier’s Evergreen centrifugal chillers provide exceptional value by achieving energy efficiency levels as high as 6.
PAGE 2
Table of contents Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Easy installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Power supply and controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 3
■ Demand limiting This feature limits the power draw of the chiller during peak loading conditions. When incorporated into the Carrier Comfort Network building automation system, a red line command will hold chillers at their present capacity and prevent any other chillers from starting. If a load shed signal is received, the compressors are unloaded to avoid high demand charges whenever possible.
PAGE 4
Model number nomenclature 19XR 52 51 CQ 475 1 S P EE Internal codes Description 19XR - High-Efficiency Hermetic Centrifugal Liquid Chiller European pressure vessel code: P: PED Cooler size - 6 sizes - 3 lengths Motor efficiency code H — High efficiency S — Standard efficiency Condenser size - 6 sizes - 3 lengths Chronology Motor code - 4 sizes - 27 models Compressor code Options and accessories ITEM Option * Marine codes (L.R.-B.V.-A.B.S.-G.L.-D.N.V.-R.I.N.A.
PAGE 5
Starter features and options ITEM Electronic starter IP 44D S Carrier starter management module (I.S.M.
PAGE 6
General electrical data Standard voltages: 50 Hz Volt For use on supply voltages 230 346 400 3000 3300 6300 220 to 240 V systems 320 to 360 V systems 380 to 415 V systems 2900 to 3100 V systems 3200 to 3400 V systems 6000 to 6600 V systems 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.
PAGE 7
Electrical characteristics of the motors 50 Hz - Standard efficiency motors 50 Hz - Standard efficiency motors Size B Size D Low voltage Low, medium and high voltage Motor size Motor electrical data Max. IkW Low voltage 230 V 346 V 400 V BDS RLA per IkW LRA Star LRA Delta RLA per IkW LRA Star LRA Delta RLA per IkW LRA Star LRA Delta RLA per IkW LRA Star LRA Delta RLA per IkW LRA Star LRA Delta 100 2.85 546 1763 2.80 655 2114 2.78 801 2585 2.79 1033 3333 2.72 1192 4133 1.62 300 966 1.
PAGE 8
Electrical characteristics of the motors (cont.) 50 Hz - High-efficiency motors 50 Hz - High-efficiency motors Size B Size D Low voltage Low, medium and high voltage Motor size Motor electrical data Max. lkW Low voltage 230 V 346 V 400 V BDH RLA per IkW LRA Star LRA Delta RLA per IkW LRA Star LRA Delta RLA per IkW LRA Star LRA Delta RLA per IkW LRA Star LRA Delta RLA per IkW LRA Star LRA Delta 99 2.87 801 2585 2.87 1033 3333 2.72 1040 3598 2.75 1455 5023 2.73 1453 5047 1.67 475 1533 1.
PAGE 9
19XR Refrigeration cycle (centrifugal chiller) ■ The compressor continuously draws refrigerant vapour from the cooler, at a rate set by the amount of guide vane opening. As the compressor suction reduces the pressure in the cooler, the remaining refrigerant boils at a fairly low temperature (typically 3 to 6°C). The energy required for boiling is obtained from the water flowing through the cooler tubes.
PAGE 10
Compressor components 1 16 1. 2. 3. 4. 5. 6. 7. 8. 10 Motor stator Motor rotor Motor shaft journal bearings Low speed bull gear High speed shaft thrust bearing High speed shaft journal bearing Variable inlet guide vanes Impeller shroud 2 15 9. 10. 11. 12. 13. 14. 15. 16.
PAGE 11
Machine components Front view 1 3 1. 2. 3. 4. 5. 6. 7. 8. 2 4 5 9. 10. 11. 12. 13. 14.
PAGE 12
Dimensions 1 2 D C E 3 A B 5 1. 2. 4 3. 4. 5. E.
PAGE 13
Application data, mounting arrangement Unit levelling Typical isolation Standard isolation Support plate standard isolation Elastomeric pad Jacking screw(s) Isolation with isolation package only (standard) Soleplate Accessory soleplate package - levelling Level pad(s) 1. Support plate 2. Machine foot 3. 10 mm level base line 4. Shear flex pad (10 mm) Note: Isolation package includes 4 shear flex pads.
PAGE 14
Waterboxes - nozzle arrangements A - Nozzle-in-head arrangement codes 11 Sizes 4-5-6 Y 12 6 9 Z 3 2 Y Z 5 8 1 10 7 4 W X Sizes 7 and 8 W X Y Z Motor end Compressor end Condenser Evaporator Standard waterbox arrangement codes Pass Cooler waterboxes Out Arrangement code* In Out Arrangement code* 1 8 5 5 8 A B 11 2 2 11 P Q 2 7 4 9 6 C D 10 1 12 3 R S 3 7 4 6 9 E F 10 1 3 12 T U * See certified drawings 14 Condenser waterboxes In
PAGE 15
B - Marine nozzle arrangement codes Size 3 Waterbox arrangement codes Pass Cooler waterboxes Condenser waterboxes In Out Arrangement code In Out Arrangement code* 1 8 5 5 8 A B - - - 2 7 4 9 6 C D 10 1 12 3 R S 3 7 4 6 9 E F - - - In Out Arrangement code In Out Arrangement code* 1 9 6 6 9 A B - - - 2 7 4 9 6 C D 10 1 12 3 R S 3 7 4 6 9 E F - - - * See certified drawings Sizes 4-5-6 Waterbox arrangement codes Pass Cooler waterboxes Condenser wate
PAGE 16
B - Marine nozzle arrangement codes (cont.
PAGE 17
Technical description ■ Cooler is designed to prevent liquid refrigerant from entering the compressor. ■ Water-cooled packaged liquid chiller for indoor installation, equipped with numerical control, and operating with chlorine-free refrigerant HFC-134a. ■ Tubes are individually replaceable from either end of the heat exchanger without affecting the strength and durability of the tube sheet and without causing leakage in adjacent tubes.
PAGE 18
Typical piping and wiring 19XR Chiller with optional unit-mounted starter 17 3 18 19 12 13 8 7 15 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19.
PAGE 19
Typical piping and wiring (cont.) 19XR Chiller with free-standing starter 20 21 22 15 16 18 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22.
PAGE 20
Order No. 11995-20, 05.2004. Supersedes order No: 11995-20, 01.1998. Manufacturer reserves the right to change any product specifications without notice. The cover photo is solely for illustration purposes, and is not contractually binding. Manufactured by: Carrier SA, Montluel, France. Printed on Totally Chlorine Free Paper. Printed in the Netherlands.