Carrier 19EX User Manual

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17/19EX 50/60 Hz Centrifugal Liquid Chillers with HFC-134a

Installation Instructions

SAFETY CONSIDERATIONS

Centrifugal liquid chillers are designed to provide safe and reliable service when operated within design speci®cations. When operating this equipment, use good judgment and safety precautions to avoid damage to equipment and property or injury to personnel.

Be sure you understand and follow the procedures and safety precautions contained in the machine instructions, as well as those listed in this guide.

DO NOT VENT refrigerant relief devices within a building. Outlet from rupture disc or relief valve must be vented outdoors in accordance with the latest edition of ASHRAE (American Society of Heating, Refrigeration and Air Conditioning Engineers) 15. The accumulation of refrigerant in an enclosed space can displace oxygen and cause asphyxiation.

PROVIDE adequate ventilation in accordance with ASHRAE 15, especially for enclosed and low overhead spaces. Inhalation of high concentrations of vapor is harmful and may cause heart irregularities, unconsciousness, or death. Intentional misuse can be fatal. Vapor is heavier than air and reduces the amount of oxygen available for breathing. Product causes eye and skin irritation. Decomposition products are hazardous.

DO NOT USE OXYGEN to purge lines or to pressurize a machine for any purpose. Oxygen gas reacts violently with oil, grease, and other common substances.

DO NOT USE air to leak test. Use only refrigerant or dry nitrogen.

NEVER EXCEED speci®ed test pressures. VERIFY the allowable test pressure by checking the instruction literature and the design pressures on the equipment nameplate.

DO NOT VALVE OFF any safety device.

BE SURE that all pressure relief devices are properly installed and functioning before operating any machine.

DO NOT WELD OR FLAMECUT any refrigerant line or vessel until all refrigerant (liquid and vapor) has been removed from chiller. Traces of vapor should be displaced with dry air or nitrogen and the work area should be well ventilated.Refrigerant in contact with an open ¯ame produces toxic gases.

DO NOT USE eyebolts or eyebolt holes to rig machine sections or the entire assembly.

DO NOT work on high-voltageequipment unless you are a quali®ed electrician.

DO NOT WORK ON electrical components, including control panels, switches, starters, or oil heater until you are sure ALL POWER IS OFF and no residual voltage can leak from capacitors or solid-statecomponents.

LOCK OPEN AND TAG electrical circuits during servicing. IF WORK IS INTERRUPTED, con®rm that all circuits are deenergized before resuming work.

AVOID SPILLING liquid refrigerant on skin or getting it into the eyes. USE SAFETY GOGGLES. Wash any spills from the skin with soap and water. If liquid refrigerant enters the eyes, IMMEDIATELY FLUSH EYES with water and consult a physician.

NEVER APPLY an open ¯ame or live steam to a refrigerant cylinder. Dangerous over pressure can result. When it is necessary to heat refrigerant, use only warm (110 F [43 C]) water.

DO NOT REUSE disposable (nonreturnable) cylinders or attempt to re®ll them. It is DANGEROUS AND ILLEGAL. When cylinder is emptied, evacuate remaining gas pressure, loosen the collar, and unscrew and discard the valve stem. DO NOT INCINERATE.

CHECK THE REFRIGERANT TYPE before adding refrigerant to the machine. The introduction of the wrong refrigerant can cause machine damage or malfunction.

Operation of this equipment with refrigerants other than those cited herein should comply with ASHRAE-15(latest edition). Contact Carrier for further information on use of this machine with other refrigerants.

DO NOT ATTEMPT TO REMOVE ®ttings, covers, etc., while machine is under pressure or while machine is running. Be sure pressure is at 0 psig (0 kPa) before breaking any refrigerant connection.

CAREFULLY INSPECT all relief valves, rupture discs, and other relief devices AT LEAST ONCE A YEAR. If machine operates in a corrosive atmosphere, inspect the devices at more frequent intervals.

DO NOT ATTEMPT TO REPAIR OR RECONDITION any relief valve when corrosion or build-upof foreign material (rust, dirt, scale, etc.) is found within the valve body or mechanism. Replace the valve.

DO NOT install relief devices in series or backwards.

USE CARE when working near or in line with a compressed spring. Sudden release of the spring can cause it and objects in its path to act as projectiles.

DO NOT STEP on refrigerant lines. Broken lines can whip about, and release refrigerant, causing personal injury.

DO NOT climb over a machine. Use platform, catwalk, or staging. Follow safe practices when using ladders.

USE MECHANICAL EQUIPMENT (crane, hoist, etc.) to lift or move inspection covers or other heavy components. Even if components are light, use mechanical equipment when there is a risk of slipping or losing your balance.

BE AWARE that certain automatic start arrangements CAN ENGAGE THE STARTER, TOWER FAN OR PUMPS. Open the disconnect ahead of the starter, tower fan, and pumps. Shut off the machine or pump before servicing equipment.

USE only repaired or replacement parts that meet the code requirements of the original equipment.

DO NOT VENT OR DRAIN waterboxes containing industrial brines, liquid, gases, or semisolids without the permission of your process control group.

DO NOT LOOSEN waterbox cover bolts until the waterbox has been completely drained.

DOUBLE-CHECKthat coupling nut wrenches, dial indicators, or other items have been removed before rotating any shafts.

DO NOT LOOSEN a packing gland nut before checking that the nut has a positive thread engagement.

PERIODICALLY INSPECT all valves, ®ttings, and piping for corrosion, rust, leaks, or damage.

PROVIDE A DRAIN connection in the vent line near each pressure relief device to prevent a build-upof condensate or rain water.

Manufacturer reserves the right to discontinue, or change at any time, speci®cations or designs without notice and without incurring obligations.

Book

2

2

 

PC 211

Catalog No. 531-749

Printed in U.S.A.

Form 17/19EX-2SI

Pg 1

3-96

Replaces: 17/19EX-1SI

Tab

5a

5d

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTENTS

Page

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Job Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . 2

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-30

Receiving the Machine . . . . . . . . . . . . . . . . . . . . . . . 2

·INSPECT SHIPMENT

·IDENTIFY MACHINE

·PROVIDE MACHINE PROTECTION

Rigging the Machine . . . . . . . . . . . . . . . . . . . . . . . . . 2

·RIG MACHINE ASSEMBLY

·RIG MACHINE COMPONENTS

·COMPONENT DISASSEMBLY

Install Machine Supports . . . . . . . . . . . . . . . . . . . . 14

·INSTALL STANDARD ISOLATION

·INSTALL OPTIONAL ISOLATION

·INSTALL SPRING ISOLATION

Connect Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

·INSTALL WATER PIPING TO HEAT EXCHANGERS

·INSTALL WATER TO OIL COOLER ON FA COMPRESSORS

·INSTALL VENT PIPING TO RELIEF DEVICES

Make Electrical Connections . . . . . . . . . . . . . . . . . 20

·CONNECT CONTROL INPUTS

·CONNECT CONTROL OUTPUTS

·CARRIER COMFORT NETWORK INTERFACE

Install Field Insulation . . . . . . . . . . . . . . . . . . . . . . . 28 · FACTORY INSULATION (OPTIONAL)

INSTALLATION START-UPREQUEST

CHECKLIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CL-1

INTRODUCTION

General Ð The 17/19EX machine is factory assembled, wired, and leak tested. Installation consists primarily of establishing water and electrical services to the machine. The rigging, installation, ®eld wiring, ®eld piping and insulation are the responsibility of the contractor and/or customer. See Fig. 1 for model number information.

Job Data

Necessary information consists of:

·job contract or speci®cations

·machine location prints

·rigging information

·piping prints and details

·®eld wiring drawings

·starter manufacturer's installation details

·Carrier certi®ed drawings

Equipment Required

·mechanic's tools (refrigeration)

·volt-ohmmeterandclamp-onammeter

·leak detector (halide or electronic)

·absolute pressure manometer or wet-bulbvacuum indicator

·portable vacuum pumps

INSTALLATION

Receiving the Machine

INSPECT SHIPMENT

Do not open any valves or loosen any connections. The standard 17/19EX machine may be shipped with a nitrogen holding charge or with the refrigerant charge isolated within the utility vessel.

1.Inspect for shipping damage while machine is still on shipping conveyance. If machine appears to be damaged or has been torn loose from its anchorage, have it examined by transportation inspectors before removal. Forward claim papers directly to transportation company. Manufacturer is not responsible for any damage incurred in transit.

2.Check all items against shipping list. Immediately notify the nearest Carrier representative if any item is missing.

3.To prevent loss or damage, leave all parts in original packages until beginning installation. All openings are closed with covers or plugs to prevent dirt and debris from entering the machine's components during shipping. A full operating oil charge is placed in the oil sump of the compressor before shipment.

IDENTIFY MACHINE Ð The machine model number, serial number, and heat exchanger sizes are stamped on machine identi®cation nameplate (Fig. 1). Check this information against shipping papers and job data.

PROVIDE MACHINE PROTECTION Ð Protect machine and starter from construction dirt and moisture. Keep protective shipping covers in place until machine is ready for installation.

If machine is exposed to freezing temperatures after water circuits have been installed, open waterbox drains and remove all water from cooler and condenser. Leave drains open until system is ®lled.

Rigging the Machine Ð The 17/19EX machine can be rigged as an entire assembly. It also has ¯anged connections that allow the compressor, utility vessel, cooler, and condenser sections to be separated for ease of installation. Figures 2 and 3 show 17/19EX components.

RIG MACHINE ASSEMBLY Ð See rigging instructions on label attached to machine. Also refer to the rigging information found in Fig. 4-9and Tables1-12.Lift machine only from the 4 points indicated in rigging guide. Each lifting cable or chain must be capable of supporting the entire weight of the machine.

Lifting machine from points other than those speci®ed may result in serious damage to the unit and personal injury. Rigging equipment and procedures must be adequate for machine weight. See Table 1 for machine weights.

NOTE: These weights are broken down into component sections for use when installing the unit in sections. For the complete machine weight, add all component sections and refrigerant charge together. Total machine weight is also stenciled on the cooler and condenser sections.

2

NIH Ð Nozzle-In-Head

*Motors beginning with ``E'' and open drive motors (FA-JD)cannot be used with size51-89or421-469compressors.²Open-drivemotor codes:

ASME

UNDERWRITERS'

ARI (Air Conditioning

`U' STAMP

LABORATORIES

and Refrigeration

 

 

Institute)

 

 

PERFORMANCE

 

 

CERTIFIED

 

 

(60 Hz Only)

Fig. 1 Ð Model Number Identi®cation

3

RIG MACHINE COMPONENTS Ð Refer to instructions on page 5, Fig. 6-8,and Carrier certi®ed drawings for machine component disassembly.

IMPORTANT: Only a quali®ed service technician should disassemble and reassemble the machine. After reassembly, the machine must be dehydrated and leak tested.

When rigging components separately, the open drive (17EX) motor must be removed to avoid overturning.

Do not attempt to disconnect ¯anges while the machine is under pressure. Failure to relieve pressure can result in personal injury or damage to the unit.

Before rigging the compressor, disconnect the wires leading from the power panel to the control center at the power panel.

NOTE: Wiring for sensors must be disconnected. Label each wire before removal (see Carrier certi®ed drawings).

Detach all transducer and sensor wires at the sensor, then clip all wire ties necessary to remove the wires from the heat exchangers.

19EX

 

 

 

 

 

LEGEND

 

 

 

1

Ð Refrigerant Liquid Line to Economizer/

15

Ð

Motor Sight Glass (Not Shown)

27

Ð

Oil Cooler

 

 

Storage Vessel

16

Ð

Oil Filter

28

Ð

Isolation Valves (Not Shown)

2

Ð

Cooler Suction Pipe

17

Ð

Oil Level Sight Glasses (2)

29

Ð

Refrigerant Filter Drier

3

Ð

Compressor Suction Elbow

18

Ð

Cooler Relief Valves (Not Shown)

30

Ð

Local Interface Display Control Panel

4

Ð

Condenser

19

Ð

Oil Heater (Not Shown)

31

Ð

Economizer/Storage Vessel

5

Ð

Condenser Discharge Pipe

20

Ð

Auxiliary Power Panel

32

Ð

Rigging Guide (Not Shown)

6

Ð

Compressor Discharge Elbow

21

Ð

(Field Wiring Terminals)

33

Ð

Economizer/Storage Vessel

7

Ð

Guide Vane Actuator

Pumpdown Unit (Not Shown)

34

Ð

Relief Valves

8

Ð Economizer Gas Line to Compressor

22

Ð

Low-SideFloat Box Cover

Cooler

9

Ð

Gear Inspection Cover

23

Ð

Refrigerant Liquid Line to Cooler

35

Ð

High-SideFloat Box Cover

10

Ð

2-StageHermetic Compressor

24

Ð

Oil Drain and Charging Valve

36

Ð

Take-ApartConnections

11

Ð Condenser Waterbox Vent (Not Shown)

25

Ð

Oil Pump

37

Ð

Cooler Waterbox Vent

12

Ð

Condenser Marine Waterbox

26

Ð

Refrigerant Charging/Service

38

Ð

Cooler Marine Waterbox

13

Ð

Hermetic Compressor Motor

 

 

Valve 10 (Not Shown)

39

Ð

Cooler Waterbox Drain

14

Ð Compressor Motor Terminal Box

 

 

 

40

Ð

Condenser Waterbox Drain

 

 

(Not Shown)

 

 

 

 

 

 

Fig. 2 Ð Typical 19EX Installation

4

COMPONENT DISASSEMBLY

To Separate Compressor from the Machine

1.Make sure to check that the machine is at atmospheric pressure before disassembly.

2.Since the center of gravity is high on 17EX machines, the motor MUST be removed before rigging the machine.

3.Suction elbow should be rigged separately (Fig. 6, Item 2). Place slings around the elbow and attach to the hoist. Remove bolting at ¯anges, (Fig. 6, Items 1 and 3). Detach the elbow.

4.Unbolt discharge ¯ange to the condenser at ¯ange (Fig. 8, Item 3). Cut copper lines (Fig. 6, Items 7, 8, and 9).

5. Disconnect and detach the economizer vent line (Fig. 8, Item 4). Unbolt the line at ¯ange (Fig. 8, Item 2).

6.On 19EX machines, disconnect the motor cooling drain line at ¯ange (Fig. 8, Item 5).

7.Disconnect wiring to the control center and power panel.

8.Connect rigging to the compressor.

9.Unbolt compressor from the utility vessel (Fig. 7, Items 2, 4, and 5).

10.Hoist the compressor off of the unit.

11.If the compressor is to be transported or set down, the base should be bolted to sections of 4 in. x 6 in. lumber.

To Separate Condenser from the Machine

1.Unbolt ¯ange (Fig. 6, Item 3).

2.Unbolt ¯ange (Fig. 6, Item 4).

3.Cut copper pipe (Fig. 6, Item 7).

4.Unbolt hot ¯ange (Fig. 7, Item 1).

5.Connect rigging to all corners of the condenser.

6.Unbolt condenser feet (Fig. 8, Items 1 and 6).

 

 

 

 

 

LEGEND

 

 

 

1

Ð

Condenser

15

Ð

Refrigerant Liquid Line to Cooler

27

Ð

Pumpout Unit

2

Ð

Cooler Suction Pipe

16

Ð

Power Panel (Field Wiring Terminals)

28

Ð

High Side Float Box Cover

3

Ð

Compressor Suction Elbow

17

Ð

Oil Level Sight Glasses

29

Ð

Cooler

4

Ð

Guide Vane Actuator

18

Ð

Oil Drain and Charging Valve

30

Ð

Cooler Waterbox Drain

5

Ð

Condenser Discharge Pipe

19

Ð

Oil Heater (Hidden)

31

Ð

Take-ApartConnections (Typical)

6

Ð

Oil Filter (Hidden)

20

Ð

Oil Pump

32

Ð

Cooler Marine Waterbox Cover

7

Ð

Two-StageCompressor

21

Ð

Refrigerant Charging/Service Valve

33

Ð

Cooler Waterbox

8

Ð

Compressor Discharge Elbow

 

 

10 (Not Shown)

34

Ð

Cooler Waterbox Vent

9

Ð

Gear Inspection Cover

22

Ð

Cooler Relief Valves (Not Shown)

35

Ð

Condenser Waterbox Drain

10

Ð Economizer Gas Line to Compressor

23

Ð

Economizer/Storage Vessel

36

Ð

Refrigerant Liquid Line to

11

Ð Open Drive Compressor Motor

24

Ð

Oil Cooler

 

 

Economizer/Storage Vessel

12

Ð Compressor Motor Terminal Box

25

Ð

Control Center

37

Ð

Condenser Waterbox Vent

13

Ð

Coupling Guard

26

Ð

Economizer/Storage Vessel

 

 

 

14

Ð Low-SideFloat Box Cover

 

 

Relief Valves

 

 

 

Fig. 3 Ð Typical 17EX Installation

5

NOTES:

1. Each chain must be capable of supporting the maximum weight of the machine.

2. = the approximate center of gravity.

3. Maximum possible weight is 88,500 lb (40 166 kg) which includes a maximum of 6,000 lb (2 721 kg) of HFC-134arefrigerant in the storage tank.

17EX FRONT VIEW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LIFTING

 

 

 

 

 

 

 

VESSEL

MAXIMUM

 

 

 

 

CHAIN LENGTH

 

 

 

 

HEIGHT

 

CENTER OF GRAVITY

 

COOLER

LENGTH

WEIGHT

LIFTING

 

 

 

 

 

 

 

FROM FLOOR

 

APPROXIMATE LOCATION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

``E''

 

 

 

 

 

 

 

SIZE

 

 

 

 

ANGLE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ft-in.

mm

lb

kg

 

``A''

 

``B''

 

``C''

``D''

 

ft-in.

 

mm

``F''

``G''

``H''

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ft-in.

 

mm

ft-in.

 

mm

ft-in.

mm

ft-in.

 

mm

 

 

 

ft-in.

mm

ft-in.

mm

ft-in.

mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30°

10- 3

 

3124

9-0

 

2743

16-1

 

4902

13-6

 

4115

16-11

 

5156

 

 

 

 

 

 

45-48

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17-0

5182

88,550

40 166

45°

12- 7

 

3835

11-7

 

3531

19-1

 

5817

16-9

 

5105

20- 8

 

6299

4-1

1245

9-1

2769

4-9

1448

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60°

17-10

 

5436

17-1

 

5207

24-9

 

7544

22-8

 

6909

27- 3

 

8306

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 4 Ð 17EX Machine Rigging Guide

NOTES:

1. Each chain must be capable of supporting the maximum weight of the machine.

2. = the approximate center of gravity.

3. Maximum possible weight is 78,700 lb (35,698 kg) which includes a maximum of 6,000 lb (2,268 kg) of HFC-134ain the storage tank.

19EX FRONT VIEW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LIFTING

 

 

 

 

 

 

 

VESSEL

MAXIMUM

 

 

 

 

 

CHAIN LENGTH

 

 

 

 

HEIGHT

 

CENTER OF GRAVITY

 

COOLER

LENGTH

WEIGHT

LIFTING

 

 

 

 

 

 

 

 

FROM FLOOR

 

APPROXIMATE LOCATION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

``E''

 

 

 

 

 

 

 

SIZE

 

 

 

 

ANGLE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ft-in.

mm

lb

kg

 

``A''

 

``B''

 

``C''

 

``D''

 

ft-in.

 

mm

``F''

``G''

``H''

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ft-in.

 

mm

ft-in.

 

mm

ft-in.

mm

ft-in.

 

mm

 

 

 

ft-in.

mm

ft-in.

mm

ft-in.

mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30°

7-2

 

1880

7-2

 

1880

11-11

 

3632

11-1

 

3378

13-7

 

4140

 

 

 

 

 

 

31-33

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12-3

3734

55,000

24 948

45°

8-9

 

2667

8-9

 

2667

14- 0

 

4267

13-4

 

4064

16-2

 

4928

3-10

1168

6-1

1854

4-6

1372

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60°

12-5

 

3785

12-5

 

3785

18- 0

 

5486

17-6

 

5334

20-9

 

6325

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30°

6-7

 

2007

6-9

 

2057

13- 0

 

3962

12-2

 

3708

15-1

 

4597

 

 

 

 

 

 

41-44

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12-3

3734

70,000

31 752

45°

8-0

 

2438

8-3

 

2515

14-11

 

4547

14-3

 

4343

17-5

 

5309

4- 0

1219

6-0

1829

4-8

1422

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60°

11-4

 

3454

11-6

 

3505

18- 7

 

5664

18-0

 

5486

21-7

 

6579

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30°

9-1

 

2769

9-6

 

2896

15- 1

 

4597

14-7

 

4445

16-4

 

4978

 

 

 

 

 

 

45-48

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17-0

5182

78,700

35 698

45°

11-1

 

3378

11-6

 

3505

17- 9

 

5410

17-4

 

5283

19-8

 

5994

3-10

1168

8-3

2515

4-8

1422

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60°

15-9

 

4800

16-0

 

4877

22-10

 

6960

22-6

 

6858

25-5

 

7747

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 5 Ð 19EX Machine Rigging Guide

6

NOTE: Item numbers are referenced in Rigging the Machine, Component Disassembly section.

Fig. 6 Ð Typical Top View (19EX Shown)

NOTE: Item numbers are referenced in Rigging the Machine, Component Disassembly section.

Fig. 7 Ð Typical Side View (19EX Shown)

7

NOTE: Item numbers are referenced in Rigging the Machine, Component Disassembly section.

Fig. 8 Ð Typical Motor End View (19EX Shown)

To Separate Cooler From Utility Vessel

1.Remove condenser (see previous section).

2.Cut copper lines (Fig. 6, Items 6 and 8).

3.Unbolt liquid refrigerant line at ¯ange (Fig. 7, Item 3).

4.Connect rigging to all four corners of the cooler before lifting the unit.

5.Unbolt connections to the utility vessel (Fig. 6, Items 5 and 10).

To Assemble the Machine

1.Follow disassembly instructions (in reverse order) and bolt all ¯anges back together using a gasket sealant. The following torque requirements are speci®ed:

2.All gasketed or O-ringjoints which have been disassembled must be assembled using new gaskets andO-rings.These new gaskets andO-rings(along with gasket sealant,O-ringlubricant, and copper line couplings) are available through your Carrier representative.

3.Braze all copper lines back together using a suitable brazing material for copper. Carrier recommends an AWS (American Welding Society) Classi®cation BCuP-2.

Do not tilt the compressor; oil is contained in the oil sump.

FIG.

ITEM NO.

 

TORQUE

ft-lb

 

N-m

 

 

 

 

3

580

 

786

6

1 or 4

170

 

230

 

5 and 10

840*

 

1139*

7

1

380

 

515

4 and 5

250

 

340

 

 

 

1 and 6

280

 

380

8

2

170

 

230

3

380

 

515

 

 

 

5

71

 

96

 

 

 

 

 

N-m Ð Newton Meters

Additional Notes

1.Use silicon grease on new O-ringswhen re®tting.

2.Use gasket sealant on new gaskets when re®tting.

3.Cooler, utility, and condenser vessels may be rigged vertically, as separate components. Rigging should be ®xed to all four corners of the tube sheet.

4.New gaskets, grease for O-rings,and gasket sealant for a completetake-apartoperation are available in a kit. Contact your Carrier representative.

*This torque is used to rig the entire machine. Once the machine is in place, if no further rigging is anticipated, the bolt torque can be reduced to 280 ft-lb(380N-m).

8

NOTES:

1.Certi®ed drawings available upon request.

2.Service access should be provided per American Society of Heating, Refrigeration, and Air Conditioning Engineers (ASHRAE) 15, latest edition, National Fire Protection Association (NFPA) 70, and local safety codes.

DIMENSIONS

CONDENSER

 

 

A (LENGTH)²

 

 

 

 

B (WIDTH)

 

 

 

C (HEIGHT)

 

 

H (TUBE PULL)

 

 

 

 

 

 

 

 

17EX**

 

19EX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SIZE

 

ft-in.

 

mm

 

 

 

 

 

 

ft-in.

 

 

mm

 

 

ft-in.

 

 

mm

 

 

 

ft-in.

 

mm

ft-in.

 

 

mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

31 - 33

15-6

 

4724

 

 

N/A

 

N/A

8-10

 

 

2692

10-81¤2

 

 

3264

 

12-10

 

3912

41 - 43

15-6

 

4724

 

 

N/A

 

N/A

 

 

 

 

 

 

12-2

 

 

3708

 

12-10

 

3912

45 - 47

20-3

 

6172

 

 

12-2

 

3708

 

9-41¤2

 

 

2858

 

 

 

17- 6

 

5334

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

51 - 53

15-6

 

4724

 

 

N/A

 

N/A

 

 

12-5

 

 

3785

 

12-10

 

3912

 

 

 

 

 

 

 

 

 

 

 

 

 

 

55 - 57

20-3

 

6172

 

 

12-2

 

3708

 

 

 

 

 

 

 

 

 

 

17- 6

 

5334

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SERVICE CLEARANCES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COMPONENT

 

 

 

D (DIAMETER)²²

 

E (LENGTH)²²

 

 

F (DIAMETER)

 

 

G (LENGTH)

 

 

 

ft-in.

 

 

mm

 

ft-in.

 

mm

 

 

ft-in.

 

 

mm

 

 

ft-in.

 

 

mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Motor DB - DQ

 

 

 

1-111¤4

 

 

591

 

 

3- 71¤2

 

1105

 

 

Ð

 

 

Ð

 

 

Ð

 

Ð

Motor EA - ED

 

 

 

2- 23¤4

 

 

679

 

 

3-101¤4

 

1175

 

 

Ð

 

 

Ð

 

 

Ð

 

Ð

Motor EE

 

 

 

 

 

 

 

4- 11¤4

 

1251

 

 

Ð

 

 

Ð

 

 

 

Ð

 

 

Ð

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Low-SideFloat

 

 

 

Ð

 

 

Ð

 

 

Ð

 

 

Ð

 

 

 

2-6

1¤2

 

775

 

 

1-0

 

305

 

 

 

 

 

 

 

 

 

 

 

NOZZLE SIZES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HEAT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOZZLE SIZES (in.)|

 

 

 

 

 

 

 

 

 

NOZZLE TYPE

 

 

 

Cooler Passes

 

 

 

 

 

 

Condenser Passes

EXCHANGER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

2

 

 

3

 

 

1

 

 

2

3

31 - 33

 

 

 

 

Marine

 

 

12

 

10

 

 

10

 

 

12

 

10

10

 

 

 

 

NIH

 

 

12

 

10

 

 

10

 

 

Ð

 

 

10

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

41 - 48

 

 

 

 

Marine

 

 

20

 

14

 

 

12

 

 

20

 

14

12

 

 

 

 

NIH

 

 

18

 

14

 

 

10

 

 

18

 

12

10

 

 

 

 

 

 

 

 

 

 

 

 

 

51 - 57

 

 

 

 

Marine

 

 

Ð

 

Ð

 

 

Ð

 

 

Ð

 

 

 

 

16

Ð

 

 

 

 

NIH

 

 

Ð

 

Ð

 

 

Ð

 

 

20

 

 

 

 

16

Ð

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LEGEND

NIH Ð Nozzle-In-Head

*Distance required for tube removal may be either end.

²Based on 2-pass,nozzle-in-head(NIH) waterboxes with 150 psi (1038 kPa) covers.

**Overall width of units with 17 Series compressors will vary greatly depending upon the application. See the appropriate certi®ed drawings.

²²For hermetic motors (19 Series) only.

\The table at right provides additional information on nozzle sizes. Victaulic grooves are standard for these nozzles. Optional 150 psi (1034 kPa) and 300 psi (2068 kPa) ¯anges are available.

¶In conformance with ASA B36.10 (American Standards Association).

NOMINAL PIPE SIZE (in.)

SCHEDULE¶

WALL THICKNESS

in.

mm

 

 

10

40

.365

9.27

12

Std

.375

9.53

14

30

.375

9.53

16

30

.375

9.53

18

Std

.375

9.53

20

20

.375

9.53

 

 

 

 

Fig. 9 Ð Typical Dimensions

9

Table 1 Ð 17/19EX Heat Exchanger, Economizer/Storage Vessel, Piping, and Pumpout Unit Weights*

 

 

COOLER

 

 

 

 

 

 

 

COOLER

 

 

 

 

 

ECONOMIZER/

ECONOMIZER

MISCELLANEOUS

PUMPOUT

 

 

TOTAL

 

 

 

 

 

 

 

 

 

 

 

 

 

STORAGE

COOLER

 

 

 

 

 

 

 

 

CHARGE

 

 

 

 

 

 

REFRIGERANT

 

 

PIPING

 

UNIT

 

WEIGHT

 

 

 

 

 

 

 

 

 

 

 

 

 

VESSEL**

 

 

 

 

SIZE²

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dry

 

Operating²²

 

Refrigerant

 

 

 

Water

 

 

 

 

lb

 

 

kg

 

lb

 

 

kg

 

 

lb

 

 

kg

lb

kg

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

lb

kg

 

lb

 

kg

 

lb

 

kg

lb

 

gal

 

kg

 

L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

31

14,173

6 429

 

17,518

7 946

 

1,540

 

699

1,810

 

217

 

821

821

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

32

14,538

6 594

 

18,117

8 218

 

1,640

 

744

1,944

 

233

 

882

882

 

7,169

 

3252

 

610

 

277

 

820

 

 

372

 

 

33

14,904

6 760

 

18,722

8 492

 

1,740

 

789

2,078

 

249

 

943

943

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

41

21,674

9 831

 

26,120

11 848

 

1,900

 

862

2,441

 

293

 

1 107

1 107

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

42

22,019

9 988

 

26,736

12 127

 

2,000

 

907

2,575

 

309

 

1 168

1 168

 

7,169

 

3 252

 

610

 

277

 

1,095

 

 

497

 

 

43

22,364

10 144

 

27,322

12 393

 

2,100

 

953

2,709

 

325

 

1 229

1 229

 

 

 

 

 

 

 

210

95

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

44

23,841

10 814

 

29,836

13 533

 

2,190

 

993

3,285

 

394

 

1 490

1 490

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

45

25,032

11 354

 

30,790

13 966

 

2,260

 

1 025

3,006

 

361

 

1 363

1 363

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

46

25,529

11 580

 

31,658

14 360

 

2,360

 

1 070

3,192

 

383

 

1 448

1 448

 

7,900

 

3 583

 

840

 

381

 

1,149

 

 

521

 

 

47

26,025

11 805

 

32,496

14 740

 

2,460

 

1 116

3,378

 

405

 

1 532

1 532

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

48

28,153

12 770

 

36,053

16 353

 

2,540

 

1 152

4,173

 

500

 

1 893

1 893

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONDENSER

 

CONDENSER TOTAL WEIGHT

 

 

 

 

 

 

CONDENSER CHARGE

 

 

 

 

 

 

 

 

 

 

 

 

Dry

 

 

Operating²²

 

Refrigerant

 

 

 

 

 

 

 

Water

 

 

 

 

 

 

 

 

 

SIZE²

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

lb

 

 

 

kg

lb

 

 

 

kg

 

lb

 

kg

 

 

lb

 

 

gal

 

kg

 

L

 

 

 

 

 

 

31

 

10,454

 

 

4 742

13,022

 

 

5 907

 

950

 

431

 

 

1,613

 

193

 

732

 

732

 

 

 

 

 

 

 

32

 

10,809

 

 

4 903

13,514

 

 

6 130

 

950

 

431

 

 

1,750

 

210

 

794

 

794

 

 

 

 

 

 

 

33

 

11,164

 

 

5 064

14,000

 

 

6 350

 

950

 

431

 

 

1,886

 

226

 

855

 

855

 

 

 

 

 

 

 

41

 

13,768

 

 

6 245

16,999

 

 

7 711

 

1,090

 

494

 

 

2,146

 

257

 

973

 

973

 

 

 

 

 

 

 

42

 

14,118

 

 

6 404

17,498

 

 

7 937

 

1,090

 

494

 

 

2,282

 

274

 

1 035

 

1 035

 

 

 

 

 

 

 

43

 

14,468

 

 

6 563

17,978

 

 

8 155

 

1,090

 

494

 

 

2,419

 

290

 

1 097

 

1 097

 

 

 

 

 

 

 

45

 

16,676

 

 

7 564

20,800

 

 

9 435

 

1,400

 

635

 

 

2,720

 

326

 

1 234

 

1 234

 

 

 

 

 

 

 

46

 

17,172

 

 

7 789

21,489

 

 

9 747

 

1,400

 

635

 

 

2,908

 

348

 

1 319

 

1 319

 

 

 

 

 

 

 

47

 

17,669

 

 

8 015

22,178

 

 

10 060

 

1,400

 

635

 

 

3,096

 

371

 

1 404

 

1 404

 

 

 

 

 

 

 

51

 

17,188

 

 

7 796

20,993

 

 

9 522

 

1,100

 

499

 

 

2,707

 

325

 

1 228

 

1 228

 

 

 

 

 

 

 

52

 

17,848

 

 

8 096

21,923

 

 

9 944

 

1,100

 

499

 

 

2,964

 

355

 

1 344

 

1 344

 

 

 

 

 

 

 

53

 

18,400

 

 

8 346

22,682

 

 

10 288

 

1,100

 

499

 

 

3,178

 

381

 

1 442

 

1 442

 

 

 

 

 

 

 

55

 

20,725

 

 

9 401

25,598

 

 

11 611

 

1,420

 

644

 

 

3,453

 

412

 

1 566

 

1 566

 

 

 

 

 

 

 

56

 

21,663

 

 

9 826

26,896

 

 

12 199

 

1,420

 

644

 

 

3,808

 

457

 

1 727

 

1 727

 

 

 

 

 

 

 

57

 

22,446

 

10 181

27,980

 

 

12 691

 

1,420

 

644

 

 

4,105

 

492

 

1 862

 

1 862

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*If a machine con®guration other than 2-pass,150 psig (1034 kPa), NIH waterbox con®guration is used, refer to Tables 3 and 4 to obtain the additional dry and water weights that must be added to the values shown in this table.

²Cooler and condenser weights shown are based upon 2-pass,nozzle-in-head(NIH) waterboxes with 150 psig (1034 kPa) covers. Includes components attached to cooler, but does not include suction/discharge, elbow, or other interconnecting piping.

**Dry weight includes all components attached to economizer: Covers, ¯oat valves, brackets, control center (31 lb [14 kg]), and power panel (20 lb [9 kg]). Dry weight does not include compressor weight, motor weight, or pumpout condensing unit weight. The pumpout condensing unit weight is 210 lb (95 kg). For compressor and motor weights, refer to Tables 6, 7, 8, 10A, and 10B.

²²Operating weight includes the sum of the dry weight, refrigerant weight, and water weight.

Table 2 Ð Refrigerant Charge

HEAT EXCHANGER SIZE

COOLER CHARGE

CONDENSER CHARGE

ECONOMIZER CHARGE

TOTAL REFRIGERANT

 

CHARGE*

 

 

 

 

 

 

 

 

 

Cooler

Condenser

lb

kg

lb

kg

lb

kg

lb

 

kg

31

31

1540

699

950

431

 

 

3100

 

1 406

32

32

1640

744

950

431

 

 

3200

 

1 452

33

33

1740

789

950

431

 

 

3300

 

1 497

41

41

1900

862

1090

494

 

 

3600

 

1 633

42

42

2000

907

1090

494

610

277

3700

 

1 678

43

43

2100

953

1090

494

 

 

3800

 

1 724

44

51

2190

993

1100

499

 

 

3900

 

1 769

44

52

2190

993

1100

499

 

 

3900

 

1 769

44

53

2190

993

1100

499

 

 

3900

 

1 769

45

45

2260

1 025

1400

635

 

 

4500

 

2 041

46

46

2360

1 070

1400

635

 

 

4600

 

2 087

47

47

2460

1 116

1400

635

844

381

4700

 

2 132

48

55

2540

1 152

1420

644

4800

 

2 177

 

 

 

48

56

2540

1 152

1420

644

 

 

4800

 

2 177

48

57

2540

1 152

1420

644

 

 

4800

 

2 177

 

 

 

 

 

 

 

 

 

 

 

*Total machine refrigerant charge includes the cooler, condenser, and economizer.

NOTE: Regulations mandate that machine shipping charge is limited to 7500 lb (3402 kg).

10