air-cooled screw chiller - vertical_ntvertical-nt.kz/d/114460/d/2286568.pdfair-cooled screw 5 high...

5CHAC-01A

AIR-COOLEDSCREW CHILLER

50Hz/R134a50~100RT

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Air-Cooled ScrewAir-Cooled Screw

High Efficiency Models50~100RT

1. Model Line Up

2. Nomenclature

3. Construction Details 4. Features & Benefits

5. Options & Accessories

6. Controls

7. ARI capacity ratings

8. Specifications

9. Dimensional Drawings

10. Selection Procedure

11. Performance Data

12. Pressure Drop

13. Piping Diagrams

14. Wiring Diagrams

15. Electrical Data

16. Installation

17. Guide Specifications

Appendix

Contents

Air-Cooled ScrewAir-Cooled Screw2

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y1. Model Line Up

Capacity (RT) Model

50 RCAW050*AAA

60 RCAW060*AAA

70 RCAW070*AAA

80 RCAW080*AAA

90 RCAW090*AAA

100 RCAW100*AAA

• * : P – 380V, Q - 400V, R - 415V


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2. Nomenclature

R C A 100 8 AAW

Product Type : C = Chiller

Chiller Type : A = Air cooled

Compressor Type : W = Screw Compressor

Refrigerant Type : R = R134a

Development sequence

Identification RuleA

Nominal Capacity in Tons (usRT)

Ex) 050 : 50RT, 200 : 200RT

Ice storage / BMS type

A : High Efficiency ModelB : Compact Model

Model Type

A : General / Modbus PortB : General / BACnet PortC : General / LonWork PortD : Ice Storage / Modbus PortE : Ice Storage / BACnet PortF : Ice Storage / LonWork Port

Unit Voltage (V / Hz / Ø)1 : 115 / 60 / 1 2 : 220 / 60 / 1 3 : 208-230 / 60 / 15 : 200-220 / 50 / 1 6 : 220-240 / 50 / 1 7 : 100 / 50, 60 / 1 8 : 380-415 / 50 / 3 9 : 380 / 60 / 3 A : 220 / 50 / 3 B : 220 / 60 / 3 C : 575 / 60 / 3 D : 440-460 / 60 / 3 E : 265 / 60 / 1 F : 200 / 50, 60 / 1 G : 220-240 / 50, 60 / 1 L : 380-415 / 50, 60 / 3 M : 3,300 / 60 / 3 N : 6,600 / 60 / 3 J : 6,000 / 60 / 3 K :10,000 / 60 / 3 P : 380 / 50 / 3 Q : 400 / 50 / 3 R: 415 / 50 / 3 S : 380-400 / 50 / 3�


3. Construction Details

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No. Description1 Fan2 Column3 Base frame4 Evaporator5 Compressor6 Condenser coil7 Control box8 Oil separator9 Gas collector tube

10 Collector tube11 Receiver12 Water box13 Bottom post

1

2

34

5

6

7

8

11 12

13

10

9


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4. Features & Benefits

1. Excellent reliability and powerful operation

The cutting-edge design of the series RCAWTM Air-cooled screw chiller accomplishes high perfor-mance and reliability for industrial and commercial market.

LG Air-cooled screw compressors are precisely machined from solid compound metal bar usingprofound cutting process. Tolerance is maintained within a few microns just like one-tenth hairthickness. Robust components with highly skilled assembling process help the compressor last fora long time.

LG condenser production technology is already well-known to worldwide air conditioning manufac-turing industries because of its leading technologies.

2. World class high efficiency (High efficiency model RCAW****A**)

Top level efficiency is in accordance with ARI Standard 550/590

Optimized compressor design including a rotor and a slide valve is suitable for comfort coolingapplications. The rotor is designed to work efficiently for different pressure ranges covering airconditioning and refrigeration application.

The slide valve controls the cooling capacity by controlling the position of the slide where refriger-ant suction starts using internal pressure difference between discharge and suction. LG air cooledscrew chiller has 4 steps capacity control (100, 75, 50, 25%) capability which is optimized for part-load condition.

Precise rotor tip clearance provides excellent energy efficiency in the screw rotary compressorbecause this reduces leakage from high pressure to low pressure side during compression,achieving top class C.O.P.

The evaporator uses internally grooved tubes having helical angle which enhanced the water sideheat transfer performance. The outside of the tube is of optimum shape which has highlyenhanced performance for pooling boiling and film-wise evaporation with R134-a. The V-shape ofcondenser allows the largest heat transfer surface area for the same footprint, resulting in largestheat transfer performance when the configuration is optimally designed. The LG V-shape con-denser coil was designed using numerical and experimental analysis, having optimum air flow pathto optimize heat rejection performance. Also, the enhanced condenser fin geometry allows theoptimum heat transfer performance at small air side pressure drop, and this reduces the fan-motorpower consumption. The fin is pre-coated to prevent corrosion at normal conditions and epoxycoated fin condenser which is sustainable in harsh conditions, is also available as option.


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y4. Features & Benefits

3. Low noise and low vibration

The unit was designed with a compact structure and robust assembly.

The condenser fan is completed with high-efficiency wing style axial fan and direct driven motor forlow sound level. The unit configures compressor sound insulation box (Option), which makes LGchillers silent and stable.

4. System protection device

All of the LG chiller supplies perfect protective devices for reliability.

Proper oil circulation (triple protection)

Differential pressure switch

Perfect protection

Dual pressure switch

Compressor internal protector

Flow switch• Checking comp winding temperature and • Discharge gas temperature

• Checking comp winding temperature and discharge gas temperature

Compressor overload relay

• Checking comp current

Anti-freezing switch• Evaporator refrigerant temperature cut-out switch(2°C)

• Oil flow switch

• Oil level switch

• Between evaporator and condenser


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Run test for RCAW seriesAir-Cooled Chiller Test Chamber

5. Installation, start-up

• Small operating footprint fit most retrofit applications. (Compact model)

• Factory testing for high reliability.

• Factory-installed and tested controls help to reduce start up time and minimized extra cost.

• Display temperatures and pressure for each component spot.

6. Compressor specification

• Semi-hermetic twin-rotor screw compressor.

• Direct-drive, low speed/RPM.

• Only three moving parts, resulting in high relia-bility.

• The slide valve has a unique profile, optimizedfor part-load conditions.

• Field serviceable and easy maintenance.

• Precise rotor tip clearance

• A refrigerant dispersing device is set internallyto the compressor for motor cooling.

7. Factory Testing

Unit Performance TestingAll LG air-cooled screw chillers are given a complete functional test at the factory. LG computer-based testing programs completely check the components including sensors, wiring, electronicsand microprocessor control functions.

LG promotes factory performance tests for air-cooled chillers and water-cooled chillers to showthat we stand behind the products which are designed and build up.

The benefits of a performance test include verification of performance, prevention of operationalproblems, and assurance of a smooth start-up. Each compressor is run and tested to verify capac-ity and efficiency. Based on the result of this testing, Chiller arrives at the job site fully tested andready for operation. The LG test facility is able to simulate real circumstance assuring operation indifferent climate conditions.

4. Features & Benefits

[Sliding Valve]


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y4. Features & Benefits

8. Structural strength analysis

Structure is designed to ensure stiffness for various disturbances by steps of structure modeling,meshing, excitation and evaluation.

Structural strength evaluation simulation

9. Aerodynamic analysisCondenser part is appropriately designed by aerodynamic analysis like inlet and outlet uniformairflow design and dead zone reduction design.

Heat circulation evaluation simulation


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5. Options & Accessories

1. Application

• Comfort cooling• Industrial process cooling• Ice/thermal storage• Low temperature process cooling

2. Options & Selection

• Ice Making The unit controls are factory set operating in ice making mode for thermal storage applications.

• Communication Interface Controlled by various control protocols for BMS interface through Modbus port (Standard) orBACnet or LonWorks Port (Factory installed optional)

• Coil Protection & Access ProtectionCoated wire mesh covers to protect condenser coil, evaporator and compressor.

• Soft starter(Factory Installed option) Soft starter is provided for the soft start of compressor by linear voltage increase.

• Isolators(Field Installed option)Neoprene isolator and Spring isolator are provided as field installed option by LG for vibrationdamping of chiller.

• Condenser Corrosion Protection For protecting the condenser in corrosive environment, epoxy coated option is provided.Site conditions should be matched with the proper condenser fin coatings to inhibit coil corrosionand extend equipment life.

• High Ambient Operation The high ambient option permits operation at high ambient (up to 125°F/52°C).

• Sound ProofCompressor sound attenuating blanket (Factory installed) is provided for making it sound proof.

• Power Disconnect Switch Disconnect switch to isolate the chiller from main power can be provided.

• Power ConnectionPower connections are provided as shown in the below table as Standard and Option.

3. Standard provides

• High Efficiency High efficiency features include cycle optimization, high efficiency fin and enhanced economizer.These features make the unit highly efficient.

• Flow switches• Wye-Delta starter• Suction and discharge SVC Valves

Type Hz Type RT Comp

Air cooled 60Hz High efficiency 50~100 1 single 1 - -

Standard Option

Point Terminal Point Terminal


6. Controls

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Unit controls of the LGE air cooled screw chiller shall include following benefits and features.

1. Adaptive Chiller Control and Higher Level Protection. The latest chiller control technologies provide enhanced operations of the chiller. The chiller control system isbased on recent PLC (Programmable Logic Controller) technology. Because the PLC is designed to be com-patible with several electromagnetic interference and also compatible with severe ambient conditions, the unithas reliable controllability in any conditions.

The adaptive chiller control is designed to operate the unit to withstand sever conditions and maintain its opera-tion. Good examples are condenser fan controls by cycling according to the temperature of condenser refriger-ant and the limitation of compressor capacity in the case of high chilled water temperature.

Along with the adaptive control, the control also provides higher level protection through multiple protectivedevices. For example triple protective devices are used for the detection of abnormal oil circulation. The controlsystem continues to monitor the hazardous conditions of the unit, and shutdown the unit to protect the unitsafely when any condition meets safety limit.

2. Rich Human Machine InterfaceThe HMI (Human Machine Interface) side of the PLC (Programmable Logic Controller) and HMI assembly isshown on the door side as shown in the below picture. The HMI is composed of wide full dot LCD with 4 linedisplay and back light, 9 functional keys, and 15 indicating LEDs for rich user interface.

Through the LCD interface, the operator can monitor the status of chiller operation and control in detail. And thecontrol configurations also can be performed through the LCD interface. For the monitoring and the configura-tion, 7 menu items are prepared in the LCD display from main menu to parameter setting as shown in thebelow picture. In the below picture, amendable menu contents for the configuration are depicted with shadedcolor.

ESC SET ENTER

START STOP

Arrow keys Indicating LED

Full dot LCD:4 line text display with backlight


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6. Controls

3. Superior Power Supply Monitoring

Superior power supply monitoring function of the control system is enabled by protective functionagainst high voltage, low voltage, power loss, phase reverse, and phase imbalance. The superior function of safe power supply to the unit is provided as standard.

4. Standard Wye-delta Start Type and Optional Soft Start Type

The wye-delta start provides reduced starting current by 1/3. The LGE chiller is equipped with thewye-delta start of the compressor. Optionally, soft start type shall be provided for soft start of thecompressor by linear voltage increase.

5. Standard MODBUS Connectivity and Optional BACnet and LonWorks Connectivity.

The control system of the LGE chiller provides measure to be integrated in modern BMS systemseamlessly. Because the control system provides MODBUS connectivity by standard, no addition-al cost for the BMS integration is needed for the system integration based on the MODBUS.Specially, BACnet or LonWorks can be applied to the system on the request of customer byoption.

6. Versatile Electric and control Options Satisfying Customer’s Requirements are as given belowin a table.

Customer can have various option. For example:

Standard terminal block, dual point power connection, no capacitor for power correction.

These all options are factory installed as per customer requirement.

Please refer table below for more options.

Option 1 Option 2 Option 3

Electric and Control

No capacitor for Power Factor Correction

Capacitor for Power Factor Correction











Dual point power connection

Single point powerconnection





Standard terminal block

Circuit Breakers

Unit-mounted non-fuseddisconnect switch withcircuit breaker


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y7. ARI capacity ratings

• COP-Coefficient of Performance• EER-Energy Efficiency Ratio• IPLV-Integrated Part Load Value• * : P – 380V, Q - 400V, R - 415V

❈ All data in this table is rated in accordance with ARI Standard 550/590.

UnitCapacity Full Load

EER COP

IPLV

EER COP

Evaporator Flow Rate Evaporator Pressure DropInputPower(kW)Tons kW gpm l/s ft wg kPa

RCAW050*AAA 51.2 180 58 10.59 3.10 12.38 3.63 122.7 7.7 7.6 22.8

RCAW060*AAA 60.9 214 67 10.90 3.19 12.74 3.73 145.9 9.2 7.5 22.3

RCAW070*AAA 69.7 245 79 10.58 3.10 12.37 3.63 167.0 10.5 9.6 28.8

RCAW080*AAA 80.2 282 91 10.57 3.10 12.36 3.62 192.2 12.1 11.2 33.4

RCAW090*AAA 90.2 317 99 10.93 3.20 12.77 3.74 216.1 13.6 13.9 41.5

RCAW100*AAA 101.0 355 114 10.63 3.11 12.42 3.64 242.0 15.3 13.9 41.4


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8. Specifications English Unit

Air Cooled Screw Chiller ModelGeneral Unit Data

Unit Capacity at ARI Conditions TonsNumber of Independent Refrigerant CircuitsRefrigerant Charge, R-134a

lbs

Oil Chargegal

WeightShipping Weight Aluminum Fin Coils lb

Copper Fin Coils lbOperating Weight Aluminum Fin Coils lb

Copper Fin Coils lbCompressors

Compressor typeQuantity EA

CondenserTotal Chiller Coil Face Area ft2

Number of Coils EANumber of rows EAFins per inch FPI

FansNumber

EA

Fan Motor kWFan Speed RPMFan Diameter inchTotal Chiller Airflow cfm

EvaporatorEvaporator typeWater Volume galMaximum Water Side Pressure psigMaximum Refrigerant Side Pressure psigMinimum Chilled Water Flow Rate gpmMaximum Chilled Water Flow Rate gpm

Water ConnectionsWater Connections Main pipe (Branch) inchDrain (NPT) inch

DimensionsLength inchWidth inchHeight inch

RCAW050*AAA RCAW060*AAA RCAW070*AAA RCAW080*AAA

51.2 60.9 69.7 80.2 1 1 1 1

220 309 375 496

4.5 6.3 7.9 9.5

7,011 7,209 7,815 8,091 - - - -

7,145 7,363 7,996 8,294 - - - -

Semihermetic Twin Screw Semihermetic Twin Screw Semihermetic Twin Screw Semihermetic Twin Screw1 1 1 1

153 153 215 215 6 6 8 8 5 5 5 5 12 12 12 12

6 6 8 8

9.6 9.6 12.8 12.8 720 720 720 720 29.5 29.5 29.5 29.5

49,445 49,445 65,926 65,926

Flooded Flooded Flooded Flooded16.1 18.5 21.7 24.3 145 145 145 145 319 319 319 319 61.3 72.9 83.5 96.1 245.4 291.7 334.0 384.4

3 3 4 4 1 1 1 1

153.5 153.5 198.8 198.8 78.7 78.7 78.7 78.7 82.7 82.7 82.7 82.7

NOTES:1. Cooling conditions: Ambient temperature is 95°F, chilled water temperature outlet is 44°F. Temperature difference is 10°F.2. Evaporator connection pipe : Flange connection3. Unit conversion 1kW = 860kcal/h, 1RT = 3.517kW4. Due to our policy of innovation some specifications may be changed without prior notification.5. * : P – 380V, Q - 400V, R - 415V


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y8. Specifications English Unit


Unit Capacity at ARI Conditions TonsNumber of Independent Refrigerant CircuitsRefrigerant Charge, R-134a

lbs

Oil Chargegal

WeightShipping Weight Aluminum Fin Coils lb

Copper Fin Coils lbOperating Weight Aluminum Fin Coils lb

Copper Fin Coils lbCompressors


CondenserTotal Chiller Coil Face Area ft2


FansNumber

EA

Fan Motor kWFan Speed RPMFan Diameter inchTotal Chiller Airflow cfm

EvaporatorEvaporator typeWater Volume galMaximum Water Side Pressure psigMaximum Refrigerant Side Pressure psigMinimum Chilled Water Flow Rate gpmMaximum Chilled Water Flow Rate gpm

Water ConnectionsWater Connections Main pipe (Branch) inchDrain (NPT) inch

DimensionsLength inchWidth inchHeight inch

RCAW090*AAA RCAW100*AAA

90.2 101.0 1 1

584 661

11.4 12.9

8,113 8,477 - -

8,342 8,730 - -

Semihermetic Twin Screw Semihermetic Twin Screw1 1

269 269 10 10 5 5 12 12

10 10

16.0 16.0 720 720 29.5 29.5

82,408 82,408

Flooded Flooded27.5 30.4 145 145 319 319

108.0 121.0 432.1 483.9

4 4 1 1

220.5 220.5 78.7 78.7 82.7 82.7



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8. Specifications SI Unit


Unit Capacity at ARI Conditions kWUnit Capacity at ARI ConditionsRefrigerant Charge, R-134a

kg

Oil Chargel

WeightShipping Weight Aluminum Fin Coils kg

Copper Fin Coils kgOperating Weight Aluminum Fin Coils kg

Copper Fin Coils kgCompressors


CondenserTotal Chiller Coil Face Area m2


FansNumber

EA

Fan Motor kWFan Speed RPMFan Diameter mmTotal Chiller Airflow l/s

EvaporatorEvaporator typeWater Volume l

Maximum Water Side Pressure BarMaximum Refrigerant Side Pressure BarMinimum Chilled Water Flow Rate l/sMaximum Chilled Water Flow Rate l/s

Water ConnectionsWater Connections Main pipe (Branch) mmDrain mm

DimensionsLength mmWidth mmHeight mm

RCAW050*AAA RCAW060*AAA RCAW070*AAA RCAW080*AAA

180 214 245 282 1 1 1 1

100 140 170 225

17 24 30 36

3,180 3,270 3,545 3,670 - - - -

3,241 3,340 3,627 3,762 - - - -

Semihermetic Twin Screw Semihermetic Twin Screw Semihermetic Twin Screw Semihermetic Twin Screw1 1 1 1

14.2 14.2 20.0 20.0 6 6 8 8 5 5 5 5 12 12 12 12

6 6 8 8

9.6 9.6 12.8 12.8 720 720 720 720 750 750 750 750

23,334 23,334 31,112 31,112

Flooded Flooded Flooded Flooded61 70 82 92 10 10 10 10 22 22 22 22 3.9 4.6 5.3 6.1 15.5 18.4 21.1 24.3

80 80 100 100 32 32 32 32

3,900 3,900 5,050 5,050 2,000 2,000 2,000 2,000 2,100 2,100 2,100 2,100



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y8. Specifications SI Unit


Unit Capacity at ARI Conditions kWUnit Capacity at ARI ConditionsRefrigerant Charge, R-134a

kg

Oil Chargel

WeightShipping Weight Aluminum Fin Coils kg

Copper Fin Coils kgOperating Weight Aluminum Fin Coils kg

Copper Fin Coils kgCompressors


CondenserTotal Chiller Coil Face Area m2


FansNumber

EA

Fan Motor kWFan Speed RPMFan Diameter mmTotal Chiller Airflow l/s

EvaporatorEvaporator typeWater Volume l

Maximum Water Side Pressure BarMaximum Refrigerant Side Pressure BarMinimum Chilled Water Flow Rate l/sMaximum Chilled Water Flow Rate l/s

Water ConnectionsWater Connections Main pipe (Branch) mmDrain mm

DimensionsLength mmWidth mmHeight mm

RCAW090*AAA RCAW100*AAA

317 355 1 1

265 300

43 49

3,680 3,845 - -

3,784 3,960 - -

Semihermetic Twin Screw Semihermetic Twin Screw1 1

25.0 25.0 10 10 5 5 12 12

10 10

16.0 16.0 720 720 750 750

38,890 38,890

Flooded Flooded104 115 10 10 22 22 6.8 7.6 27.3 30.5

100 100 32 32

5,600 5,600 2,000 2,000 2,100 2,100



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8. Specifications (cont)

Unit Mounting Weight

C B

ED F

A

C

B

D

A

Evaporator Side

For 50, 60 RT Model For 70 ~ 100 RT Model

Comp. Side

Evaporator Side

Comp. Side

B

C

847

927

873

955

C

D

428

365

444

378

426

401

446

420

A

D

701

767

722

790

B

E

973

829

1,010

860

969

912

1,014

955

A

F

557

475

578

492

554

522

580

546

English (lb)

TotalTotal

3,241

3,340

3,627

3,762

3,784

3,960

RCAW050*AAA

RCAW060*AAA

RCAW070*AAA

RCAW080*AAA

RCAW090*AAA

RCAW100*AAA

Model

SI (Kg)

Unit with Aluminum Fin Coils

B

C

1,867

2,043

1,924

2,105

C

D

943

804

979

834

939

884

982

925

A

D

1,545

1,690

1,592

1,742

B

E

2,146

1,828

2,226

1,896

2,135

2,011

2,235

2,104

A

F

1,228

1,046

1,274

1,085

1,222

1,151

1,279

1,205

7,145

7,363

7,996

8,294

8,342

8,730

* : P – 380V, Q - 400V, R - 415V


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y9. Dimensional Drawings

Chi

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/out

let

RC

AW

050*

AA

A, R

CA

W06

0*A

AA

NO

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imen

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mm

(inch

).2.

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side

of P

ower

Box

.3.

P-3

80V

, Q-4

00V

, R-4

15V


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9. Dimensional Drawings

Chi

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wat

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/out

let

RC

AW

070*

AA

A, R

CA

W08

0*A

AA

NO

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(inch

).2.

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of P

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Box

.3.

P-3

80V

, Q-4

00V

, R-4

15V


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Chi

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wat

er in

/out

let

RC

AW

090*

AA

A, R

CA

W10

0*A

AA

NO

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imen

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s ar

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mm

(inch

).2.

Mai

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side

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ower

Box

.3.

P-3

80V

, Q-4

00V

, R-4

15V


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10. Selection Procedure

LG Chiller selection program helps to select LG air cooled screw chiller quickly and easily.

To select RCAW series chiller, use the LAT’s Chiller (Computerized) program or follow one of theprocedures below.

1) Determine RCAW series unit size and operating conditions required to meet given capacity atgiven conditions.

2) From Cooling Capacities table and pressure drop curves, determine operating data for selectedunit.

Given:

Capacity.......................................................100 Tons

Leaving Chilled Water Temp (LCWT) .................44°F

Evaporator Water Temp Rise .............................10°F

Condenser Entering Air Temp ............................95°F

Fouling Factor (Evaporator) .......0.0001 (ft2·hr·F/ Btu)

NOTE: For other than 10°F temperature rise, contactnearest LG office.

Given:

Capacity ......................................................351.7 kW

Leaving Chilled Water Temp (LCWT)................6.7°C

Evaporator Water Temp Rise ............................5.6°C

Condenser Entering Air Temp ............................35°C

Fouling Factor (Evaporator) ..........0.0186 (m2·°C/kW)

NOTE: For other than 5.6°C temperature rise, con-tact nearest LG office.

English SI

Unit ...........................................................RCAW100

Capacity....................................................101.0 Tons

Power Input .................................................112.0 kW

Evaporator Water Flow.................................242 gpm

Evaporator Pressure Drop ..................13.9 ft of water

Unit ............................................................RCAW100

Capacity ......................................................355.2 kW

Power Input ................................................112.0 kW

Evaporator Water Flow ...................................15.3 l/s

Evaporator Pressure Drop............................41.5 kPa

English SI


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y11. Performance Data

40 54.0 48.2 13.43 52.1 50.0 12.51 50.3 52.0 11.36 48.7 54.4 10.53 46.8 57.2 9.63 44.8 60.3 8.74 42 56.3 48.6 13.88 54.4 50.3 12.98 52.6 52.4 11.80 50.1 54.8 10.74 48.9 57.6 9.99 46.9 60.7 9.08 44 58.6 49.0 14.35 56.7 50.7 13.42 54.9 52.7 12.25 52.2 55.2 11.11 51.2 58.0 10.37 49.0 61.2 9.42 45 60.0 49.1 14.64 58.1 50.9 13.70 56.3 52.7 12.56 54.0 55.6 11.41 52.3 58.5 10.51 50.2 61.5 9.60 46 60.9 49.3 14.81 59.0 51.1 13.87 57.2 53.2 12.63 55.3 55.6 11.69 53.3 58.4 10.73 51.1 61.6 9.75 48 63.6 49.6 15.41 61.8 51.4 14.42 59.8 53.5 13.12 57.6 56.1 12.09 55.3 58.8 11.05 53.5 62.1 10.12 50 66.4 49.9 15.96 64.1 51.8 14.84 62.3 53.9 13.57 60.4 56.5 12.58 58.1 59.4 11.51 55.8 62.6 10.48 52 69.2 50.3 16.51 66.9 52.2 15.37 65.0 54.3 14.08 62.7 56.8 12.98 60.4 59.8 11.88 58.2 63.0 10.86

LCWT(°F) 75 80 85 90 95 100Tons Input kW EER Tons Input kW EER Tons Input kW EER Tons Input kW EER Tons Input kW EER Tons Input kW EER

AIR TEMPERATURE ON CONDENSER (°F)

40 42.9 63.7 7.91 40.9 67.5 7.12 38.7 71.8 6.34 36.2 76.6 5.56 34.1 81.6 4.92 42 44.8 64.2 8.20 42.8 68.0 7.39 40.5 72.3 6.59 38.2 77.0 5.84 35.9 82.1 5.14 44 46.9 64.7 8.53 44.7 68.5 7.68 42.4 72.8 6.85 40.1 77.5 6.08 37.7 82.6 5.37 45 48.0 64.9 8.68 45.7 68.5 7.84 43.4 73.1 6.97 41.0 77.8 6.19 38.7 83.1 5.47 46 49.0 65.2 8.84 46.8 69.0 7.98 44.4 73.3 7.13 42.0 78.0 6.32 39.6 83.2 5.59 48 51.2 65.7 9.16 48.9 69.5 8.28 46.5 73.7 7.41 44.0 78.5 6.59 41.5 83.7 5.82 50 53.4 66.1 9.49 51.1 70.0 8.58 48.6 74.3 7.69 46.0 79.1 6.84 43.4 84.3 6.06 52 55.8 66.6 9.84 53.4 70.2 8.94 50.7 74.8 7.97 48.2 79.6 7.12 45.4 84.8 6.30

LCWT(°F) 105 110 115 120 125Tons Input kW EER Tons Input kW EER Tons Input kW EER Tons Input kW EER Tons Input kW EER


RCAW050*AAA [IPLV 12.38]

40 64.1 55.7 13.82 62.0 57.7 12.88 59.8 60.1 11.93 57.9 62.8 11.06 55.7 66.0 10.11 53.3 69.6 9.18 42 66.9 56.2 14.29 64.7 58.1 13.35 62.5 60.5 12.40 60.3 63.3 11.42 58.2 66.5 10.49 55.8 70.1 9.54 44 69.6 56.6 14.77 67.4 58.6 13.81 65.2 60.8 12.87 62.8 63.8 11.81 60.9 67.0 10.90 58.3 70.7 9.89 45 71.3 56.8 15.07 69.1 58.8 14.10 66.9 60.8 13.19 64.1 64.2 11.99 62.2 67.6 11.04 59.7 71.0 10.09 46 72.4 57.0 15.24 70.2 59.0 14.27 68.0 61.5 13.26 65.8 64.3 12.28 63.4 67.5 11.27 60.8 71.2 10.25 48 75.7 57.2 15.86 73.5 59.4 14.84 71.1 61.8 13.79 68.5 64.7 12.70 65.8 68.0 11.61 63.5 71.7 10.64 50 79.0 57.7 16.43 76.2 59.9 15.27 74.0 62.3 14.25 71.8 65.2 13.21 69.1 68.6 12.09 66.3 72.3 11.01 52 82.2 58.1 17.00 79.5 60.3 15.82 77.3 62.7 14.79 74.6 65.6 13.63 71.8 69.1 12.48 69.2 72.8 11.41



40 51.0 73.6 8.31 48.6 77.9 7.48 46.0 82.9 6.66 43.1 88.5 5.84 40.6 94.2 5.17 42 53.3 74.2 8.62 50.8 78.5 7.77 48.2 83.5 6.93 45.5 88.9 6.13 42.7 94.8 5.40 44 55.8 74.7 8.96 53.2 79.1 8.07 50.4 84.1 7.20 47.7 89.6 6.39 44.8 95.4 5.64 45 57.0 75.0 9.12 54.3 79.1 8.24 51.5 84.5 7.32 48.7 89.9 6.51 46.0 96.0 5.75 46 58.3 75.3 9.29 55.7 79.7 8.38 52.8 84.7 7.49 49.9 90.1 6.64 47.0 96.1 5.88 48 60.9 75.9 9.62 58.2 80.3 8.70 55.3 85.2 7.79 52.4 90.7 6.93 49.3 96.7 6.12 50 63.4 76.4 9.97 60.8 80.8 9.02 57.8 85.8 8.08 54.7 91.4 7.18 51.6 97.3 6.37 52 66.3 77.0 10.34 63.5 81.1 9.39 60.3 86.4 8.37 57.3 91.9 7.48 54.0 97.9 6.62




NOTES:1. EER = Energy Efficiency Ratio of Performance (Btu/watt-hour).2. Power inputs include compressors, condenser fans, control power and basic device.3. Ratings are based on evaporator temperature drop of 10°F(5.6°C).4. Ambient temperatures 115°F(46.1°C) and greater reflect the high ambient condenser option.5. Rated in accordance with ARI Standard 550/590.6. Interpolation between points is permissible. Extrapolation is not permitted.7. For continual product development, above specification may be changed without notice.8. * : P – 380V, Q - 400V, R - 415V


Hig

h E

ffic

ienc

y

11. Performance Data

40 73.4 65.7 13.42 70.9 68.1 12.50 68.4 70.8 11.59 66.3 74.0 10.74 63.7 77.9 9.82 61.0 82.1 8.92 42 76.6 66.2 13.87 74.1 68.5 12.97 71.6 71.3 12.04 68.9 74.7 11.08 66.6 78.4 10.19 63.8 82.7 9.26 44 79.7 66.7 14.34 77.2 69.1 13.41 74.7 71.7 12.50 71.9 75.2 11.47 69.7 79.0 10.58 66.7 83.4 9.60 45 81.6 66.9 14.63 79.1 69.3 13.69 76.6 71.7 12.81 73.4 75.7 11.64 71.1 79.7 10.71 68.4 83.7 9.80 46 82.9 67.2 14.80 80.3 69.6 13.86 77.8 72.5 12.88 75.3 75.8 11.92 72.6 79.6 10.94 69.6 83.9 9.95 48 86.6 67.5 15.40 84.1 70.1 14.41 81.4 72.9 13.39 78.5 76.3 12.33 75.3 80.2 11.28 72.8 84.5 10.33 50 90.4 68.0 15.95 87.3 70.6 14.83 84.7 73.5 13.84 82.2 76.9 12.83 79.1 80.8 11.74 76.0 85.2 10.69 52 94.2 68.5 16.50 91.0 71.1 15.36 88.5 74.0 14.36 85.4 77.4 13.24 82.2 81.4 12.11 79.2 85.8 11.08



40 58.4 86.8 8.07 55.6 91.9 7.26 52.7 97.8 6.46 49.3 104.4 5.67 46.5 111.1 5.02 42 61.0 87.5 8.37 58.2 92.6 7.54 55.2 98.4 6.73 52.0 104.9 5.95 48.8 111.8 5.24 44 63.8 88.1 8.70 60.9 93.2 7.83 57.7 99.1 6.99 54.6 105.6 6.21 51.3 112.5 5.48 45 65.3 88.5 8.85 62.1 93.2 8.00 59.0 99.6 7.11 55.8 106.0 6.32 52.7 113.2 5.58 46 66.7 88.8 9.02 63.7 94.0 8.14 60.5 99.8 7.27 57.1 106.3 6.45 53.9 113.3 5.70 48 69.7 89.5 9.34 66.6 94.6 8.44 63.3 100.4 7.56 59.9 106.9 6.73 56.4 114.0 5.94 50 72.6 90.0 9.68 69.6 95.3 8.76 66.2 101.2 7.85 62.6 107.7 6.98 59.1 114.8 6.18 52 76.0 90.8 10.04 72.6 95.6 9.11 69.0 101.9 8.13 65.6 108.4 7.26 61.8 115.5 6.43




40 84.5 75.6 13.41 81.6 78.4 12.50 78.8 81.6 11.58 76.3 85.3 10.73 73.3 89.7 9.81 70.2 94.6 8.91 42 88.1 76.3 13.86 85.3 78.9 12.96 82.4 82.2 12.03 78.7 86.0 10.97 76.7 90.3 10.18 73.5 95.2 9.26 44 91.8 76.8 14.33 88.9 79.6 13.40 86.0 82.6 12.49 82.5 86.7 11.43 80.2 91.0 10.57 76.8 96.0 9.60 45 93.9 77.1 14.62 91.0 79.9 13.68 88.1 82.6 12.80 84.5 87.2 11.63 82.0 91.8 10.71 78.7 96.4 9.79 46 95.4 77.4 14.79 92.5 80.1 13.85 89.6 83.5 12.87 86.7 87.3 11.92 83.5 91.7 10.93 80.1 96.7 9.94 48 99.7 77.8 15.39 96.8 80.7 14.40 93.6 84.0 13.38 90.3 87.9 12.32 86.7 92.3 11.27 83.7 97.4 10.32 50 104.0 78.3 15.94 100.4 81.3 14.81 97.5 84.6 13.83 94.6 88.6 12.82 91.0 93.1 11.73 87.4 98.2 10.69 52 108.4 78.9 16.49 104.8 81.9 15.35 101.9 85.2 14.35 98.3 89.1 13.23 94.6 93.8 12.10 91.2 98.8 11.07



40 67.2 100.0 8.06 64.0 105.8 7.26 60.6 112.6 6.46 56.8 120.3 5.67 53.5 128.0 5.01 42 70.2 100.8 8.36 67.0 106.6 7.54 63.5 113.4 6.72 59.9 120.8 5.95 56.2 128.8 5.24 44 73.5 101.4 8.69 70.1 107.4 7.83 66.5 114.2 6.98 62.9 121.6 6.20 59.1 129.6 5.47 45 75.1 101.9 8.85 71.5 107.4 7.99 67.9 114.7 7.10 64.2 122.1 6.31 60.6 130.3 5.58 46 76.8 102.3 9.01 73.3 108.2 8.13 69.6 115.0 7.26 65.7 122.4 6.45 62.0 130.5 5.70 48 80.2 103.1 9.33 76.7 109.0 8.44 72.8 115.7 7.55 69.0 123.2 6.72 65.0 131.3 5.94 50 83.6 103.7 9.67 80.1 109.8 8.75 76.2 116.6 7.84 72.1 124.1 6.97 68.1 132.2 6.18 52 87.4 104.6 10.03 83.6 110.2 9.11 79.5 117.4 8.12 75.5 124.8 7.26 71.2 133.0 6.42






Hig

h E

ffic

ienc

y11. Performance Data

40 95.0 82.3 13.85 91.8 85.3 12.91 88.5 88.8 11.96 85.8 92.8 11.09 82.4 97.6 10.14 78.9 102.9 9.21 42 99.1 83.0 14.32 95.8 85.9 13.39 92.6 89.4 12.43 88.7 93.6 11.37 86.2 98.3 10.52 82.6 103.6 9.56 44 103.1 83.6 14.81 99.9 86.6 13.84 96.6 89.9 12.90 92.3 94.3 11.75 90.2 99.0 10.93 86.3 104.5 9.92 45 105.6 83.9 15.10 102.3 86.9 14.13 99.1 89.9 13.23 95.0 94.9 12.02 91.7 99.9 11.02 88.4 104.9 10.11 46 107.2 84.2 15.28 104.0 87.2 14.31 100.7 90.9 13.30 97.5 95.0 12.31 93.9 99.7 11.30 90.1 105.2 10.27 48 112.1 84.6 15.90 108.8 87.8 14.87 105.3 91.4 13.82 101.5 95.7 12.73 97.5 100.4 11.64 94.1 105.9 10.66 50 117.0 85.2 16.47 112.9 88.5 15.31 109.6 92.1 14.29 106.4 96.4 13.25 102.3 101.3 12.12 98.3 106.8 11.04 52 121.8 85.8 17.04 117.8 89.1 15.86 114.5 92.7 14.83 110.5 97.0 13.67 106.4 102.1 12.51 102.5 107.5 11.44



40 75.5 108.8 8.33 72.0 115.1 7.50 68.1 122.5 6.67 63.8 130.8 5.85 60.1 139.2 5.18 42 78.9 109.7 8.64 75.3 116.0 7.79 71.4 123.3 6.94 67.3 131.4 6.15 63.2 140.1 5.41 44 82.6 110.4 8.98 78.8 116.8 8.09 74.7 124.2 7.22 70.7 132.3 6.41 66.4 140.9 5.66 45 84.5 110.9 9.14 80.4 116.8 8.26 76.3 124.8 7.34 72.2 132.8 6.52 68.1 141.8 5.77 46 86.3 111.3 9.31 82.4 117.7 8.40 78.3 125.1 7.51 73.9 133.2 6.66 69.7 141.9 5.89 48 90.2 112.2 9.64 86.2 118.6 8.72 81.9 125.8 7.81 77.6 134.0 6.94 73.0 142.8 6.13 50 94.0 112.8 9.99 90.0 119.4 9.04 85.7 126.8 8.10 81.1 135.0 7.20 76.5 143.8 6.38 52 98.3 113.8 10.37 94.0 119.8 9.41 89.3 127.7 8.40 84.9 135.8 7.50 80.0 144.7 6.63




40 106.4 94.8 13.47 102.8 98.2 12.56 99.1 102.2 11.63 96.0 106.8 10.79 92.3 112.4 9.86 88.4 118.5 8.95 42 111.0 95.6 13.93 107.3 98.9 13.02 103.7 102.9 12.09 99.3 107.8 11.06 96.5 113.2 10.23 92.5 119.3 9.30 44 115.5 96.3 14.40 111.9 99.7 13.46 108.2 103.5 12.55 103.4 108.6 11.42 101.0 114.0 10.63 96.7 120.3 9.64 45 118.2 96.6 14.69 114.6 100.1 13.74 111.0 103.5 12.86 106.4 109.3 11.69 102.7 115.0 10.72 99.0 120.8 9.84 46 120.1 96.9 14.86 116.4 100.4 13.91 112.8 104.7 12.93 109.1 109.4 11.97 105.1 114.8 10.98 100.9 121.1 9.99 48 125.5 97.4 15.46 121.9 101.1 14.47 117.9 105.2 13.44 113.7 110.2 12.38 109.1 115.7 11.32 105.4 122.0 10.37 50 131.0 98.1 16.02 126.4 101.9 14.89 122.8 106.0 13.89 119.1 111.0 12.88 114.6 116.7 11.79 110.1 123.0 10.74 52 136.4 98.8 16.57 131.9 102.6 15.43 128.2 106.7 14.42 123.7 111.7 13.29 119.1 117.5 12.16 114.8 123.8 11.12



40 84.6 125.3 8.10 80.6 132.6 7.29 76.3 141.1 6.49 71.5 150.7 5.69 67.3 160.3 5.04 42 88.4 126.3 8.40 84.3 133.6 7.57 79.9 142.0 6.75 75.4 151.3 5.98 70.8 161.3 5.26 44 92.5 127.1 8.73 88.2 134.6 7.87 83.7 143.1 7.02 79.1 152.4 6.23 74.4 162.3 5.50 45 94.6 127.7 8.89 90.0 134.6 8.03 85.5 143.8 7.14 80.9 153.0 6.34 76.3 163.3 5.61 46 96.7 128.1 9.05 92.3 135.6 8.17 87.6 144.0 7.30 82.8 153.3 6.48 78.0 163.5 5.73 48 101.0 129.1 9.38 96.5 136.6 8.48 91.7 144.9 7.59 86.9 154.3 6.75 81.8 164.5 5.97 50 105.2 129.9 9.72 100.8 137.5 8.79 95.9 146.0 7.88 90.8 155.5 7.00 85.7 165.6 6.21 52 110.1 131.0 10.08 105.3 138.0 9.15 100.0 147.0 8.16 95.0 156.4 7.29 89.6 166.6 6.45






Hig

h E

ffic

ienc

y

12. Pressure Drop

Pressure Drop through Evaporator

Note: For flow out of this range, consult LG.

0.0

140.0 (46.84)

Pre

ssur

e D

rop

[kP

a(ft

wg)

]

Water Flow [l/s(gpm)]

0.0 30.0 (475.52)

35.0 (554.78)

5.0 (79.25)

10.0 (158.51)

15.0 (237.76)

20.0 (317.02)

25.0 (396.27)

60.0 (20.07)

120.0 (40.15)

180.0 (60.22)

80.0 (26.76)

160.0 (53.53)

20.0 (6.69)

40.0 (13.38)

100.0 (33.46)

Water Pressure Drop

50RT

60RT

70RT

80RT

90RT 100RT


Hig

h E

ffic

ienc

y13. Piping Diagrams

36

4

5

7

1

9

10

8

DE

SC

RIP

TIO

NN

o

Com

pres

sor

1

Con

dens

ing

coil

2

Rec

eive

r3

Oil

Filt

er4

Oil

sepa

rate

r 5

Eje

ctor

for

Oil

Ret

urn

6

Exp

ansi

on D

evic

es7,

8

Filt

er D

rier

9

Eva

pora

tor

10

TS

OS

S

Liquid Injection Line

HP

ST

S

AF

S

LPS

TS T

SWF

S

OF

S

OH

OLS

SY

MB

OL

Oil

heat

er

Hig

h pr

essu

re s

witc

h

LEG

EN

D

OH

DE

SC

RIP

TIO

N

HP

S

LPS

Low

pre

ssur

e sw

itch

Tem

pera

ture

sen

sor

TS

Oil

leve

l sen

sor

OLS

Oil

flow

sw

itch

OF

S

Wat

er fl

ow s

witc

h

Rel

ief v

alve

WF

S

AF

SA

nti-f

reez

ing

switc

h

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Insu

latio

n

Oil

sol.

valv

e

Sig

ht g

lass

Ref

riger

ant s

ol. v

alve

Eco

nom

izer

(F

lash

gas

tank

)11

11C

heck

val

ve

Ser

vice

val

ve

Ref

riger

ant p

ipe

Line

2

Oil

Pip

e Li

ne


Hig

h E

ffic

ienc

y

14. Wiring Diagrams

SY

MB

OL

Fus

es

P/B

ox H

eat d

issi

patio

n fa

n

LE

GE

ND

DE

SC

RIP

TIO

N

Ass

ist r

elay

C/B

ox H

eat d

issi

patio

n fa

n

Oil

heat

er

Inne

r te

mpe

ratu

re c

ontr

olle

r

Oil

sepe

rato

r so

l. v/

v

Com

p. c

apac

ity c

ontr

ol v

/v

Mid

pre

ssur

e ai

r ch

argi

ng s

ol. v

/v

Com

p. m

agne

tic s

witc

h 1

F1~

F3

CF

1

CF

2

R1

CC

H1

TH

C

SV

1

SV

2

M2

M1

M3

M1

M2

M3

Com

p. m

agne

tic s

witc

h 2

(

)

Com

p. m

agne

tic s

witc

h 3

(Y)

Fan1

A~

Fan4

A o

ver

curr

ent r

elay

s

Com

p ov

er c

urre

nt r

elay

Fan1

A~

Fan4

A m

agne

t con

tact

ors

FN

1A ~

FN

4A

FN

1B ~

FN

4BFa

n1B

~Fa

n4B

mag

net c

onta

ctor

s

OLC

1

OLF

1A ~

OLF

4A

OLF

1B ~

OLF

4BFa

n1B

~Fa

n4B

ove

r cu

rren

t rel

ays

L0P

ower

indi

cato

r la

mp

Em

erge

ncy

switc

h

SW

1

HP

LP 5E

Low

pre

ssur

e sw

itch

Rev

erse

pha

se p

rote

ctor

Not

e :

• P

- 3

80V,

Q -

400

V, R

- 4

15V

Hig

h pr

essu

re s

witc

h

Mol

d op

tion

switc

h

R S T N

RS

TF

3

VO

LTA

GE

M

ON

ITO

RIN

G(5

E)

TO

MA

N C

ON

TR

OL

UN

IT

L M22

0VA

C

N 2

R 1

CB

F1

L0 CF

1

R1

CF

2

3 3 4S

TAR

T/S

TO

P S

WIT

CH

L

4

220V

AC

LM

4

N2

SM

PS

4 2

-V+

V

2627

24VDC-P

24VDC-G

CHILLED WATER IN TEMP

CHILLED WATER OUT TEMP

COMP DISCHARGE TEMP

AMBIENT TEMP

COND OUT TEMP

2627

1011

1213

1415

1617

1819

2743

3132

3334

3536

3738

3940

4142

4344

4527

47

REMOTE RUN

OIL FLOWOIL FLOW

OLC1M1

M2

ANTI-FREEZING

LPHP

CHILLED WATER FLOW

HIGH-LOW DIFFERENTIAL

INT69

5E

OLF1A

OLF2A

OLF2B

FN1A

FN2A

FN2B

101OLF1B

OLF3B

FN1B

FN3A

FN3B

104

110

102

105

111

103

106

112

EMERGENCY SWITCH

RT

D1

+24

V-2

4VR

TD

1R

TD

2R

TD

2R

TD

3R

TD

3R

TD

4R

TD

4R

TD

5R

TD

5-(

2)+

(1)

-(4)

+(3

)-(

6)+

(5)

-(8)

+(7

)-(

10)

+(9

)24

V-G

IO1

IO2

IO3

IO4

IO5

IO6

IO7

IO8

IO9

I10

I11

I12

I13

I14

I15

I16

CO

MO

01O

02O

03O

04O

05O

06O

07O

08O

09O

10O

11O

12O

13O

14O

15O

16O

17O

18O

19O

20C

OM

771

7273

7475

7677

787

7980

8185

CHILLED WATER PUMP

SV

1M

1M

2M

3M

V1

MV

2M

V3

FN1A

FN1B

FN2A

FN2B

FN3A

FN3B

FAULT

A1

A1

A1

A2

A2

A2

A1

A1

A1

A1

A1

A1

A2

A2

A2

A2

A2

A2

SV

2

EM

RG

EM

RG

47

2

HM

IU

NIT

MA

IN C

ON

TR

OL

UN

ITO

utpu

t (P

rimar

y)O

utpu

t (S

econ

dary

)

Intp

ut (

Prim

ary)

Intp

ut (

Sec

onda

ry)

FAN

1B

FAN

2B

FAN

3B

OLF

1B4.

5A(3

.5-5

)

OLF

2B4.

5A(3

.5-5

)

OLF

3B4.

5A(3

.5-5

)

1L1

3L2

5L3

1L1

3L2

5L3

1L1

3L2

5L3

1L1

3L2

5L3

1L1

3L2

5L3

1L1

3L2

5L3

2T1

4T2

6T3

2T1

4T2

6T3

2T1

4T2

6T3

2T1

4T2

6T3

2T1

4T2

6T3

2T1

4T2

6T3

FN

1BF

N2B

FN

3B

FAN

1A

FAN

2A

FAN

3A

40 47 2 4

INT

ER

NA

LP

RO

TE

CT

OR

(IN

T69

)

11 12 2 4

1 2

OLF

1A4.

5A(3

.5-5

)

OLF

2A4.

5A(3

.5-5

)

OLF

3A4.

5A(3

.5-5

)

FN

1AF

N2A

FN

3A

L1 L2 L3

M32T

1 T2

T3

4T2

6T3

2T1

4T2

6T3

1L1

3L2

5L3

1L1

3L2

5L3

40 OLC

110

7A(1

00~1

35)

202

M1

F2

CC

H1

TH

C

CO

MP

WV

UX

Y Z

FG

TO

MA

IN C

ON

TR

OL

UN

IT

380VAC3P4W

M2

M1

89

32

9798

24V

24V

-G24

V

46

RC

AW

050*

AA

A, R

CA

W06

0*A

AA


Hig

h E

ffic

ienc

y14. Wiring Diagrams

SY

MB

OL

Fus

es

P/B

ox H

eat d

issi

patio

n fa

n

LE

GE

ND

DE

SC

RIP

TIO

N

Ass

ist r

elay

C/B

ox H

eat d

issi

patio

n fa

n

Oil

heat

er

Inne

r te

mpe

ratu

re c

ontr

olle

r

Oil

sepe

rato

r so

l. v/

v

Com

p. c

apac

ity c

ontr

ol v

/v

Mid

pre

ssur

e ai

r ch

argi

ng s

ol. v

/v

Com

p. m

agne

tic s

witc

h 1

R S T N

RS

TF

3

VO

LTA

GE

M

ON

ITO

RIN

G(5

E)

TO

MA

N C

ON

TR

OL

UN

IT

L M22

0VA

C

N 2

R 1

CB

F1

L0 CF

1

R1

CF

2

3 3 4S

TAR

T/S

TO

P S

WIT

CH

L

4

220V

AC

LM

4

N2

SM

PS

4 2

-V+

V

2627

24VDC-P

24VDC-G

COMP DISCHARGE TEMP

AMBIENT TEMP

COND OUT TEMP

2627

1011

1213

1415

1617

1819

2743

3132

3334

3536

3738

3940

4142

4344

4546

2747

REMOTE RUN

OIL FLOWOIL FLOW

OLC1M1

M2

ANTI-FREEZING

LPHP

CHILLED WATER FLOW


INT69

5E

OLF1A

OLF2A

OLF4A

OLF2B

OLF4B

FN1A

FN2A

FN4A

FN2B

FN4B

101OLF1B

OLF3A

OLF3B

FN1B

FN3A

FN3B

104

107

110

113

102

105

111

103

106

112

EMERGENCY SWITCH

RT

D1

+24

V-2

4VR

TD

1R

TD

2R

TD

2R

TD

3R

TD

3R

TD

4R

TD

4R

TD

5R

TD

5-(

2)+

(1)

-(4)

+(3

)-(

6)+

(5)

-(8)

+(7

)-(

10)

+(9

)24

V-G

IO1

IO2

IO3

IO4

IO5

IO6

IO7

IO8

IO9

I10

I11

I12

I13

I14

I15

I16

CO

MO

01O

02O

03O

04O

05O

06O

07O

08O

09O

10O

11O

12O

13O

14O

15O

16O

17O

18O

19O

20C

OM

771

7273

7475

7677

787

7980

8185

CHILLED WATER PUMP

SV

1M

1M

2M

3M

V1

MV

2M

V3

FN1A

FN1B

FN2A

FN2B

FN3A

FN3B

FN4A

FN4B

FAULT

A1

A1

A1

A2

A2

A2

A1

A1

A1

A1

A1

A1

A1

A1

A2

A2

A2

A2

A2

A2

A2

A2

SV

2

EM

RG

EM

RG

47

2

HM

IU

NI T

MA

IN C

ON

TR

OL

UN

ITO

utpu

t (P

rimar

y)

Intp

ut (

Prim

ary)

Intp

ut (

Sec

onda

ry)

FAN

1B

FAN

2B

FAN

3B

FAN

4B

OLF

1B4.

5A(3

.5-5

)

OLF

2B4.

5A(3

.5-5

)

OLF

3B4.

5A(3

.5-5

)

OLF

4B4.

5A(3

.5-5

)

1L1

3L2

5L3

1L1

3L2

5L3

1L1

3L2

5L3

1L1

3L2

5L3

1L1

3L2

5L3

1L1

3L2

5L3

1L1

3L2

5L3

1L1

3L2

5L3

2T1

4T2

6T3

2T1

4T2

6T3

2T1

4T2

6T3

2T1

4T2

6T3

2T1

4T2

6T3

2T1

4T2

6T3

2T1

4T2

6T3

2T1

4T2

6T3

FN

1BF

N2B

FN

3BF

N4B

FAN

1A

FAN

2A

FAN

3A

FAN

4A

40 47 2 4

INT

ER

NA

LP

RO

TE

CT

OR

(IN

T69

)

11 12 2 4

1 2

OLF

1A4.

5A(3

.5-5

)

OLF

2A4.

5A(3

.5-5

)

OLF

3A4.

5A(3

.5-5

)

OLF

4A4.

5A(3

.5-5

)

FN

1AF

N2A

FN

3AF

N4 A

L1 L2 L3

M32T

1 T2

T3

4T2

6T3

2T1

4T2

6T3

1L1

3L2

5L3

1L1

3L2

5L3

40 OLC

110

7A(1

00~1

35)

202

M1

F2

CC

H1

TH

C

CO

MP

WV

UX

Y Z

FG

TO

MA

IN C

ON

TR

OL

UN

IT

380VAC3P4W

M2

M1

89

32

9798

24V

24V

-G24

V

Out

put (

Sec

onda

ry)

82

F1~

F3

CF

1

CF

2

R1

CC

H1

TH

C

SV

1

SV

2

M2

M1

M3

M1

M2

M3

Com

p. m

agne

tic s

witc

h 2

(

)

Com

p. m

agne

tic s

witc

h 3

(Y )

Fan1

A~

Fan4

A o

ver

curr

ent r

elay

s

Com

p ov

er c

urre

nt r

elay

Fan1

A~

Fan4

A m

agne

t con

tact

ors

FN

1A ~

FN

4A

FN

1B ~

FN

4BFa

n1B

~Fa

n4B

mag

net c

onta

ctor

s

OLC

1

OLF

1A ~

OLF

4A

OLF

1B ~

OLF

4BFa

n1B

~Fa

n4B

ove

r cu

rren

t rel

ays

L0P

ower

indi

cato

r la

mp

Em

erge

ncy

switc

h

SW

1

HP

LP 5E

Low

pre

ssur

e sw

itch

Rev

erse

pha

se p

rote

ctor

Hig

h pr

essu

re s

witc

h

Mol

d op

tion

switc

h

Not

e :

• P

- 3

80V,

Q -

400

V, R

- 4

15V



RC

AW

070*

AA

A, R

CA

W08

0*A

AA


Hig

h E

ffic

ienc

y

14. Wiring Diagrams

SY

MB

OL

Fus

es

P/B

ox H

eat d

issi

patio

n fa

n

LE

GE

ND

DE

SC

RIP

TIO

N

Ass

ist r

elay

C/B

ox H

eat d

issi

patio

n fa

n

Oil

heat

er

Inne

r te

mpe

ratu

re c

ontr

olle

r

Oil

sepe

rato

r so

l. v/

v

Com

p. c

apac

ity c

ontr

ol v

/v

Mid

pre

ssur

e ai

r ch

argi

ng s

ol. v

/v

Com

p. m

agne

tic s

witc

h 1

F1~

F3

CF

1

CF

2

R1

CC

H1

TH

C

SV

1

SV

2

M2

M1

M3

M1

M2

M3

Com

p. m

agne

tic s

witc

h 2

(

)

Com

p. m

agne

tic s

witc

h 3

( Y )

Fan1

A~

Fan4

A o

ver

curr

ent r

elay

s

Com

p ov

er c

urre

nt r

elay

Fan1

A~

Fan4

A m

agne

t con

tact

ors

FN

1A ~

FN

4A

FN

1B ~

FN

4BFa

n1B

~Fa

n4B

mag

net c

onta

ctor

s

OLC

1

OLF

1A ~

OLF

4A

OLF

1B ~

OLF

4BFa

n1B

~Fa

n4B

ove

r cu

rren

t rel

ays

L0P

ower

indi

cato

r la

mp

Em

erge

ncy

switc

h

SW

1

HP

LP 5E

Low

pre

ssur

e sw

itch

Rev

erse

pha

se p

rote

ctor

Hig

h pr

essu

re s

witc

h

Mol

d op

tion

switc

h

R S T N

RS

TF

3

VO

LTA

GE

M

ON

ITO

RIN

G(5

E)

TO

MA

N C

ON

TR

OL

UN

IT

L M22

0VA

C

N 2

R 1

CB

F1

L0 CF

1

R1

CF

2

3 3 4S

TAR

T/S

TO

P S

WIT

CH

L

4

220V

AC

LM

4

N2

SM

PS

4 2

-V+

V

2627

24VDC-P

24VDC-G

COMP DISCHARGE TEMP

AMBIENT TEMP

COND OUT TEMP

2627

1011

1213

1415

1617

1819

2743

3132

3334

3536

3738

3940

4142

4344

4546

2747

REMOTE RUN

OIL FLOWOIL FLOW

OLC1M1

M2

ANTI-FREEZING

LPHP

CHILLED WATER FLOW


INT69

5E

OLF1A

OLF2A

OLF4A

OLF2B

OLF4B

FN1A

FN2A

FN4A

FN2B

FN4B

101OLF1B

OLF3A

OLF5A

OLF3B

OLF5B

FN1B

FN3A

FN5A

FN3B

FN5B

104

107

110

113

102

105

108

111

114

103

106

109

112

115

EMERGENCY SWITCH

RT

D1

+24

V-2

4VR

TD

1R

TD

2R

TD

2R

TD

3R

TD

3R

TD

4R

TD

4R

TD

5R

TD

5-(

2)+

(1)

-(4)

+(3

)-(

6)+

(5)

-(8)

+(7

)-(

10)

+(9

)24

V-G

IO1

IO2

IO3

IO4

IO5

IO6

IO7

IO8

IO9

I10

I11

I12

I13

I14

I15

I16

CO

MO

01O

02O

03O

04O

05O

06O

07O

08O

09O

10O

11O

12O

13O

14O

15O

16O

17O

18O

19O

20C

OM

771

7273

7475

7677

787

7980

8185

82

CHILLED WATER PUMP

SV

1M

1M

2M

3M

V1

MV

2M

V3

FN1A

FN1B

FN2A

FN2B

FN3A

FN3B

FN4A

FN4B

FN5A

FN5B

FAULT

A1

A1

A1

A2

A2

A2

A1

A1

A1

A1

A1

A1

A1

A1

A1

A1

A2

A2

A2

A2

A2

A2

A2

A2

A2

A2

SV

2

EM

RG

EM

RG

47

2

HM

IU

NIT

MA

IN C

ON

TR

OL

UN

ITO

utpu

t (P

rimar

y)

Intp

ut (

Prim

ary)

Intp

ut (

Sec

onda

ry)

FAN

1B

FAN

2B

FAN

3B

FAN

4B

FAN

5B

OLF

1B4.

5A(3

.5-5

)

OLF

2B4.

5A(3

.5-5

)

OLF

3B4.

5A(3

.5-5

)

OLF

5B4.

5A(3

.5-5

)

OLF

4B4.

5A(3

.5-5

)

1L1

3L2

5L3

1L1

3L2

5L3

1L1

3L2

5L3

1L1

3L2

5L3

1L1

3L2

5L3

1L1

3L2

5L3

1L1

3L2

5L3

1L1

3L2

5L3

1L1

3L2

5L3

1L1

3L2

5L3

2T1

4T2

6T3

2T1

4T2

6T3

2T1

4T2

6T3

2T1

4T2

6T3

2T1

4T2

6T3

2T1

4T2

6T3

2T1

4T2

6T3

2T1

4T2

6T3

2T1

4T2

6T3

2T1

4T2

6T3

FN

1BF

N2B

FN

3BF

N4B

FN

5B

FAN

1A

FAN

2A

FAN

3A

FAN

4A

FAN

5A

40 47 2 4

INT

ER

NA

LP

RO

TE

CT

OR

(IN

T69

)

11 12 2 4

1 2

OLF

1A4.

5A(3

.5-5

)

OLF

2A4.

5A(3

.5-5

)

OLF

3A4.

5A(3

.5-5

)

OLF

5A4.

5A(3

.5-5

)

OLF

4A4.

5A(3

.5-5

)

FN

1AF

N2A

FN

3AF

N4A

FN

5A

L1 L2 L3

M32T

1 T2

T3

4T2

6T3

2T1

4T2

6T3

1L1

3L2

5L3

1L1

3L2

5L3

40 OLC

110

7A(1

00~1

35)

202

M1

F2

CC

H1

TH

C

CO

MP

WV

UX

Y Z

FG

TO

MA

IN C

ON

TR

OL

UN

IT

380VAC3P4W

M2

M1

89

32

9798

24V

24V

-G24

V

Out

put (

Sec

onda

ry)

83

Not

e :

• P

- 3

80V,

Q -

400

V, R

- 4

15V



RC

AW

090*

AA

A, R

CA

W10

0*A

AA


Hig

h E

ffic

ienc

y

15. Electrical Data

Power panel of chiller

Field power supply

Symbols:

LRA: Locked Rotor Amps.RLA: Rated Load Amps.MCA : Minimum Circuit Amps. (for wire sizing)MOCP : Maximum Overcurrent ProtectionREC. Fuse size: Recommended fuse size

Notes:

1. Voltage maximum tolerance ±10%.2. Electrical source must be 3phase 4wire for security. Neutral line and

earth line must be separately connected. 3. Ground wire must be installed.

Model(RCAW)

RCAW050QAAA 400-50-3 360 440 1 272 80 6 2 93 113 175 175

RCAW060QAAA 400-50-3 360 440 1 360 95 6 2 107 131 225 200

RCAW070QAAA 400-50-3 360 440 1 305 109 8 2 127 154 250 250

RCAW080QAAA 400-50-3 360 440 1 428 128 8 2 146 178 300 250

RCAW090QAAA 400-50-3 360 440 1 463 136 10 2 159 193 300 300

RCAW100QAAA 400-50-3 360 440 1 463 160 10 2 183 223 350 350

Unit Voltage Compressor Fan MinimunCircuitAmps.(MCA)

TotalRLA

MOCP RECFuse Size

V-Hz-Phase

Supplied

EA Amp. Amp. EA Amp.

No. LRA RLA No. RLA

Min. Max

Model(RCAW)

RCAW050PAAA 380-50-3 342 418 1 260 84 6 2 97 118 200 175

RCAW060PAAA 380-50-3 342 418 1 345 100 6 2 112 137 225 200

RCAW070PAAA 380-50-3 342 418 1 292 115 8 2 132 161 250 250

RCAW080PAAA 380-50-3 342 418 1 407 135 8 2 153 186 300 300

RCAW090PAAA 380-50-3 342 418 1 443 143 10 2 166 202 300 300

RCAW100PAAA 380-50-3 342 418 1 443 169 10 2 191 233 400 350


TotalRLA

MOCP RECFuse Size

V-Hz-Phase

Supplied


No. LRA RLA No. RLA

Min. Max

Model(RCAW)

RCAW050RAAA 415-50-3 374 457 1 263 77 6 2 90 109 175 175

RCAW060RAAA 415-50-3 374 457 1 313 91 6 2 104 127 200 200

RCAW070RAAA 415-50-3 374 457 1 283 105 8 2 123 149 250 250

RCAW080RAAA 415-50-3 374 457 1 387 124 8 2 141 172 250 250

RCAW090RAAA 415-50-3 374 457 1 417 131 10 2 154 187 300 300

RCAW100RAAA 415-50-3 374 457 1 417 155 10 2 177 216 350 350


TotalRLA

MOCP RECFuse Size

V-Hz-Phase

Supplied


No. LRA RLA No. RLA

Min. Max


Hig

h E

ffic

ienc

y

16. Installation

Installation

Consider the condition of ventilation

• Flooded air cooled chiller should be installed in the ground open air or provided proper ventilation.

• If install the unit alongside the wall, there must be enough ventilation space.

Note

When the front or backside of the unit is near to the wall, if the wall is higher than the ground morethan 800mm(31.5 inches), the distance between wall and unit should be longer than 3000mm(118.1inches).

Note

When the side is near to the wall, the distance between wall and unit should be longer than 1600mm(63.0 inches).

Wall

>800

(31.

5)>3,000(118.1)

Exaust

[Unit : mm (inch)]

Exaust

Wall

>1,600(63.0)

[Unit : mm (inch)]

Note

When the front or backside of the unit is near to the wall, if the wall is higher than the ground less than800mm(31.5 inches), the distance between wall and unit should be longer than 2000mm(78.7 inches).

Wall

<800

(31.

5)

>2,000 (78.7)

Exaust

[Unit : mm (inch)]


Hig

h E

ffic

ienc

y16. Installation

SE RVICE CLEARANCE ARE A

SE RVICE CLEARANCE AREA

SE RVICECLEARANCE

ARE A

SE RVICECLEARANCE

ARE ASIDE SIDE

FRON T

BEHIND

>800(31.5) >1,000(39.4)

>180

0(70

.9)

>160

0(63

)

Service clearance area

Around the chiller, there should be enough space for maintenance.

[Unit : mm (inch)]


Hig

h E

ffic

ienc

y

16. Installation

RC

AW

050*

AA

A, R

CA

W06

0*A

AA

Not

e : 1. E

nsur

e th

at fo

unda

tion

has

to b

e of

ade

quat

e st

reng

th.

2. T

he s

lope

dev

iatio

n of

foun

datio

n pl

ane

shou

ld n

ot b

e m

ore

than

0.1

%.

3. S

prin

g is

olat

or c

an b

e us

ed (

optio

n)4.

Dim

ensi

ons

are

in m

m(in

ch).

5. P

- 3

80V

, Q -

400

V, R

- 4

15V

Rec

omm

enda

tion

:1.

LG

rec

omm

ends

mor

e th

an 4

00 m

m c

oncr

ete

foun

datio

n he

ight

.B

ut a

ccor

ding

to in

stal

latio

n fie

ld c

ondi

tion,

it m

ight

be

chan

gabl

e,2.

If fo

unda

tion

heig

ht is

cha

nged

, str

uctu

al c

alcu

latio

n to

be

nece

ssar

ily d

one

by c

us-

tom

er.

3. D

rain

sho

uld

be lo

cate

d at

low

leve

l aro

und

the

foun

datio

n fo

r pr

oper

dra

inin

g.


Hig

h E

ffic

ienc

y16. Installation

RC

AW

070*

AA

A, R

CA

W08

0*A

AA

Not

e : 1. E

nsur

e th

at fo

unda

tion

has

to b

e of

ade

quat

e st

reng

th.

2. T

he s

lope

dev

iatio

n of

foun

datio

n pl

ane

shou

ld n

ot b

e m

ore

than

0.1

%.

3. S

prin

g is

olat

or c

an b

e us

ed (

optio

n)4.

Dim

ensi

ons

are

in m

m(in

ch).

5. P

- 3

80V

, Q -

400

V, R

- 4

15V

Rec

omm

enda

tion

:1.

LG

rec

omm

ends

mor

e th

an 4

00 m

m c

oncr

ete

foun

datio

n he

ight

.B

ut a

ccor

ding

to in

stal

latio

n fie

ld c

ondi

tion,

it m

ight

be

chan

gabl

e,2.

If fo

unda

tion

heig

ht is

cha

nged

, str

uctu

al c

alcu

latio

n to

be

nece

ssar

ily d

one

bycu

stom

er.

3. D

rain

sho

uld

be lo

cate

d at

low

leve

l aro

und

the

foun

datio

n fo

r pr

oper

dra

inin

g.


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16. Installation

RC

AW

090*

AA

A, R

CA

W10

0*A

AA

Not

e : 1. E

nsur

e th

at fo

unda

tion

has

to b

e of

ade

quat

e st

reng

th.

2. T

he s

lope

dev

iatio

n of

foun

datio

n pl

ane

shou

ld n

ot b

e m

ore

than

0.1

%.

3. S

prin

g is

olat

or c

an b

e us

ed (

optio

n)4.

Dim

ensi

ons

are

in m

m(in

ch).

5. P

- 3

80V

, Q -

400

V, R

- 4

15V

Rec

omm

enda

tion

:1.

LG

rec

omm

ends

mor

e th

an 4

00 m

m c

oncr

ete

foun

datio

n he

ight

.B

ut a

ccor

ding

to in

stal

latio

n fie

ld c

ondi

tion,

it m

ight

be

chan

gabl

e,2.

If fo

unda

tion

heig

ht is

cha

nged

, str

uctu

al c

alcu

latio

n to

be

nece

ssar

ily d

one

bycu

stom

er.

3. D

rain

sho

uld

be lo

cate

d at

low

leve

l aro

und

the

foun

datio

n fo

r pr

oper

dra

inin

g.


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y17. Guide Specifications

General• LG RCAW series is air cooled type liquid screw chiller.

• Each RCAW series chiller is factory-assembled including compressor, motor, evaporator, condenser,control box, and all interconnecting unit piping and wiring completely.

• The initial charge of refrigerant HFC-134a and oil will be supplied for all units.

High Performance Screw Compressor• Selected imported semi-hermetic twin-rotor screw compressor, screw rotor uses patented tooth, with

a low vibration and low noise.

• Screw compressors deliver oil by pressure difference.

• A refrigerant dispersing cooling device is set internally to the compressor motor.

• Compressor motor starter type: Wye-delta unloaded startup.

• Regulation of capacity uses multi step control to precisely control water temperature.

• The rotor housing is made of high strength gray cast iron FC-25.

• Liquid injection shall be used to get high EER (Energy Efficiency Ratio), high condensing pressureand low sound pressure levels in each load condition.

• System differential pressure shall circulate oil, and oil goes into compressor suction part through10micron, full flow and cartridge type oil filter. Refrigerant system differential pressure shall provideliquid injection on all moving parts inside compressor for proper lubrication.

• The compressor's oil cooling must be released when necessary, by liquid injection. External dedicat-ed heat exchanger(flash gas tank) and additional piping to carry the oil from the compressor to heatexchanger(flash gas tank) and vice versa will not be accepted.

• The compressor is provided with an integrated, high efficiency oil separator and built-in oil filter.

• The compressor casing is provided with ports for optimized refrigerant cycles.

• Two thermal protection devices (high temperature sensor) are installed on compressor to protect themotor and oil against high temperature.

Heat Exchanger• Flooded type shell and tube horizontal heat exchanger : Tube line takes chilled water, shell line takes

refrigerant.

• Design pressure for shell is 300psig(2.1MPa).

• Design working pressure for tube line is 150psig(1.0MPa) or 300psig(optional).

• The evaporator is designed and tested in accordance with ASME for a refrigerant side pressure of300 psig (2.1MPa).

• The evaporator and economizer are insulated with 3/4inch(19mm) insulation(K=0.26).


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17. Guide Specifications

Heat Exchanger Fans and Motors• High efficient axial fans, anti-corrosion, specially designed vane shape meet for even air flow, and

air pressure of the air cooled unit and it is tested for static and dynamic balance, efficiency, vibra-tion, and sound level.

• The fans used in conjunction with the condenser coils, are of helical type with aerofoil blades forhigh efficiency and low sound. Each fan is protected by a fan guard.

• The air discharge is vertical and each fan is coupled with an electrical motor, capable to work atambient temperatures from -4°F(-20°C) to 149°F(65°C).

• The fan motor has individual overload protection through relay switch.

• Outdoor-type special motor with the following characteristics :

- Waterproof, anti-rust, and weather-resistant- F Class insulation, F Class process technology, and high temperature resistance design- Use of international high-quality bearings, increases operating life- In accordance with standard of IP54 and level of security

Automatic Protection• Power supply protection functions:

- Phase loss protection- Reverse phase protection- Phase imbalance protection - High voltage protection- Low voltage protection

• Compressor protection functions:- Compressor motor coil overheating protection- High current protection - High discharge temperature protection- Oil flow protection- Compressor protection from frequent start/stop- Compressor maintenance time reminder

• System protection functions:- High condensing pressure protection- Low evaporating pressure protection- High and low pressure difference system protection- Sensor alarms- Oil pressure difference protection- Oil-level protection- Contactor alert function for wrong action

• Fan protection functions:- Fan motor overload protection - Frequent start limit protection

• Evaporator protection functions:- Minimum water flow protection- Evaporator antifreeze protection- Low evaporator water temperature outlet protection- High evaporator water temperature outlet protection


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Advanced Microcomputer Control System• Advanced PLC controller is furnished with an anti-electromagnetic interference control startup,

operating, shutdown, and functions of setting up, display, fault alarm, and fault diagnosis.

• A good man-machine interface

- Displays host computer operation status in English

- Displays all information

- Sets up all functions of chiller

- Can export all operating conditions

- Furnishes connectivity to central monitoring system

• Control functions

- Tight control of chilled water set point using PID control

- Client can set up operating time and operating cycle of unit

- Client can choose so that pump can be controlled by unit

Network Monitoring Function• Single control characteristic

- Control system is prepared for self operating. Standard MODBUS provides RS485 communica-tion. This can be easily incorporated into group control and monitoring system.


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Appendix

Cooling Capacity

Unit Conversion

RT Btu/h kcal/h W

1 12,000 3024.2 3516.8

Volume

CMM CFM l/s

1 35.3 16.67

Length

m cm mm inch

1 100 1,000 39.37

Power

Temperature

HP W kW

1 746 0.746

C = — (F - 32)

Where,

C is Temperature in °C

F is Temperature in °F

5

9

40


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P/No.: MFL61764703

Air Conditioner20 Yeouido-dong, Yeongdeungpo-gu,Yeouido P.O.Box 335 Seoul, 150-721, Korea.http://www.lgeaircon.com

All rights reservedPrinted in Korea December/2009The specifications, designs, andinformation in this brochure are subject to change without notice.

The air conditioners manufactured by LG have received ISO9001 certificate for quality assurance and ISO14001 certificate for environmental management system.

air-cooled screw chiller - vertical_ntvertical-nt.kz/d/114460/d/2286568.pdfair-cooled screw 5 high...

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