16lj-1pd

8/9/2019 16lj-1pd

1/32Copyright 2005 Carrier Corporation Form 16LJ-1P

Carrier-Sanyos 16LJ single-effecthermetic absorption liquid chiller is aefficient and functional alternative totraditional electric driven chillers. The

16LJ absorption chiller uses low temperature hot water as its energysource; as it eliminates the need forhigh cost electricity, it may qualify forfinancial incentives as a gas coolingproduct. The 16LJ absorption chilleroffers functional flexibility in a varietyof installations:

no CFCs; environmentally sound single stage design for simple,

dependable operation high reliability with few moving par nominal coefficient of performance

(COP) of .70 quiet, vibration-free operation

Direct Digital Controls (DDC) foroptimum chiller performance

Features/BenefitsSingle-effect absorptioncycle provides efficient,economical water chillingwith minimal use ofelectricity.

Cost-effective coolingAlternative-energy chiller The

16LJ chiller is a solution for buildingowners who want to avoid high operaing costs associated with electric-drivechillers. Powered by low temperaturehot water, the Carrier-Sanyo 16LJabsorption chiller reduces or eliminateelectric demand and/or ratchetcharges while allowing the owner totake advantage of gas cooling incen-tives when offered by local utilitycompanies.

16LJSingle-Effect,

Low Temperature Hot WaterHermetic Absorption

Liquid Chiller75 to 525 Nominal Tons

ProductData

8/9/2019 16lj-1pd

2/32

2

Simple, reliable operation The16LJ chillers single generator providesone stage of solution reconcentration,which makes the 16LJ chiller one ofthe most basic cycles currently avail-able. The 16LJ chillers simple design,in addition to its other quality features,equates to inherently high reliability.

Few moving parts and simple, depend-able operation reduce downtime, aswell as service and maintenance costs.

Exceptional efficiency The 16LJchiller offers full-load COPs of .70 atstandard ARI (Air Conditioning andRefrigeration Institute) operating con-ditions. The 16LJ chiller provides effi-cient performance for a low tempera-ture hot water absorber. Incorporatedinto the standard machine design is asolution heat exchanger, intended topreheat the weak lithium bromide solu-

tion being pumped to the generator byprecooling the strong solution from thegenerator.

Superior part-load performance The concentration control system of the16LJ chiller allows stable, part-loadoperation at cooling water tempera-tures as low as 64 F exclusive of theneed for a cooling tower bypass. A con-trol valve integral to the machine guar-antees stable, continuous refrigerantpump operation at part-load conditions.The 16LJ chiller has a continuousoperating range from 100% to 10% of

rated machine capacity.Application versatilityDesigned for a variety of applica-tions Specifically designed for usewith low temperature hot water, the16LJ chiller can be applied to a varietyof cooling needs. Waste heat fromindustrial processes and/or cogenera-tion systems can be used to providechilled water for process cooling, aswell as comfort cooling, thus reducingthe need for additional energy andcontributing to greater overall energy

savings.Ideal for new or retrofit applica-tions From replacement or expan-sion of existing chiller systems to newconstruction projects, the 16LJ chilleris capable of meeting the needs ofalmost any cooling application. Fifteenmodel sizes, with a capacity range of75 to 525 tons, make the 16LJsingle-effect absorption chiller the ulti-mate choice for comfort cooling and/or light industrial applications.

Computerized performance ratings al-low the appropriately sized machine tobe selected in order to meet exact jobrequirements. All machine selectionsare rated in accordance with the latestedition of ARI-560.

Combine absorption and electric-driven chillers Utilizing bothabsorption and electric chillers in acentral plant offers the flexibility tobase load one chiller, while using theother to handle peak load require-ments. Hybrid chiller systems haveproven to be an economical solutionfor many chilled water plants. In manygeographical areas, operating theelectric chiller as the base loadedmachine while using the absorptionchiller during peak load conditionsprovides the most economical operat-ing cost scenario. The reverse may

also be true, depending on utility ratestructures and other job specifics.Either way, a 16LJ single-effectabsorption chiller used in conjunctionwith an electric-driven chiller may bethe most efficient and cost-effectivecombination available.

Location and installationsavingsEase of installation All machinesare completely fabricated, assembled,wired and tested in the factory assingle-piece units. Units are customari-ly shipped in one piece for all modelsizes, but shipment in multiple sectionsis available, making the 16LJ chillerideal for retrofit or replacement instal-lations where equipment room accessmay be limited. Re-assembly of thechiller at the jobsite, if required, is bothstraightforward and simple due tospecial provisions made to the

machine during the factory fabricationand sectioning process.

Small footprint Compared toother single-effect chillers, the 16LJchiller is significantly smaller in overallphysical size and weight, saving valu-able space in the equipment room aswell as reducing the rigging and instal-lation cost of the machine.

Flanged waterbox nozzles All16LJ chillers incorporate ANSI(American National Standards Institute)raised face flanges as standard on allexternal piping connections, simplify-ing chiller installation and field piping.

Low sound and vibration levelsallow location flexibility Absorp-tion chillers are distinguishable by theirlow sound and vibration levels, primari-ly because the only rotating parts arethe refrigerant and absorbent pumps.

The overall sound level of the Carrier-Sanyo 16LJ chiller is typically 80 dbA,therefore the machine may easily beinstalled near occupied spaces or in ar-eas with strict sound requirements.Low vibration levels also make it possi-ble to install the chiller on upper floorswithout special consideration for vibra-tion dampening systems.

Microprocessor controlfeatures/benefitsEach 16LJ single-effect chiller in-cludes a pre-programmed, factory-

mounted and factory-wired controlpanel, which is functionally tested priorto shipment. Chiller monitoring andcontrol is automatic and continuous,and the screen on the front panel dis-plays chiller operational status andfault indications in English or metricunits.

Features/Benefits (cont)

Table of contentsPage

Features/Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6Machine Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-16Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-20Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-24Typical Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25Guide Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-30

8/9/2019 16lj-1pd

3/32

3

The Carrier-Sanyo microprocessorPID (proportional, integral, derivative)control system surpasses proportionalonly control systems by maintaining pre-cise leaving chilled water temperatureversus actual set point. The PID controlssurpass proportional only controls intheir ability to control the machine and

narrow temperature variations. The16LJ chiller control system also incor-porates the ability to control the chilledwater and cooling water pumps auto-matically. During shutdown thesepumps are sequenced to ensure a com-plete dilution cycle, thus providing pro-tection from solution crystallization.

Leaving chilled water temperature ismeasured every 5 seconds by the con-trol system. Hot water input to thegenerator is then adjusted according tothe degree of deviation of actual leav-ing chilled water temperature versusset point. System temperatures, setpoints and operational records are dis-played on the front of the panel alongwith various indicator lights that repre-sent chiller operational status. A purgestatus light on the panel indicates whennoncondensables need to be exhaustedfrom the external purge storage cham-ber via the purge pump.

The Carrier-Sanyo 16LJ chillerscontrol system automatically performsself-diagnostic checks by constantlymonitoring the chillers operational

status and will automatically shut downthe machine if a fault occurs. Thecause of shut down will be retained inthe controllers memory and can bedisplayed for immediate operatorreview. The controllers memory willalso retain and display the cause ofthe last three system fault conditions,which is extremely useful for maintain-ing an accurate record of unit perfor-mance and fault history.

Local or remote operation of the16LJ chiller can be done by configura-tion of the controls during initial setup.

Single point electrical connectionInstallation costs are reduced byeliminating the need for field wiring be-tween machine components. All elec-trical items, including the unit-mountedpurge pump, are factory-wired to thechiller control center and require a sin-gle point electrical connection to themachine from the buildings electricalservice. A control power transformermounted in the chiller panel providessecondary single-phase control power.

Low maintenanceDurable machine construction Each Carrier-Sanyo 16LJ chiller isconstructed to meet rigorous manufac-turing and design requirements in anISO-9002 and ISO-14001 certifiedfacility. Furthermore, every machinemeets strict Underwriters Laboratories(UL) certification requirements andis UL listed. The 16LJ chiller offersnumerous features as part of itsstandard design to provide dependableoperation. Corrosion-proof stainlesssteel dispersion trays ensure continu-ous, reliable operation, free fromblockage often characteristic ofalternative designs. The evaporator,absorber and condenser tubesheetsand waterboxes are epoxy painted toresist rust and corrosion. Also, everymachine is furnished with a rupture

disk to protect against an overpressurecondition on the shellside. Thesestandard design and constructionfeatures mean that every 16LJ single-effect chiller is built to withstand themost rigorous duty, whether appliedfor comfort cooling service or lightprocess applications.

Leakproof hermetic pumps withisolation valves cut maintenancecosts The 16LJ chillers absorbentand refrigerant pump/motor assem-blies have a leakproof, self-containedand hermetically sealed design. The

hermetic construction eliminates theneed for a separate, complicated,and possibly leakprone seal watersystem and auxiliary water piping,while providing leak tightness andlonger machine life. Specially designedbearings absorb both radial and axialthrusts to ensure correct fit at all times.Concerns about external contaminationare eliminated since the fluid beingpumped lubricates and cools the pumpand motor assemblies. In addition, boththe rotor and stator are separated by astainless steel liner that protects the

windings from the fluid being handled.Thermal overload switches are embed-ded in the stator as an additional safetyfeature. This feature protects againsthigh winding temperature. The pumpsare field serviceable and inspection isrecommended after 25,000 hours or3 years of continuous operation. Isola-tion valves, a standard feature on thesuction and discharge of the absorbentand refrigerant pumps, allow easy ac-cess for service and maintenance.

Waterbox design simplifies main-tenance procedures Every 16LJchiller is provided with numerousstandard design features that permitconvenient and simple maintenanceto be carried out quickly. Hinged orremovable waterbox covers on theevaporator, absorber, and condenser

facilitate tube and waterbox inspectionand/or cleaning from either end of themachine. In addition, the absorber andcondenser sections are furnished asstandard with marine waterboxes foreasy access without having to disas-semble water piping.

Factory-trained service organiza-tion In addition to routine mainte-nance and repair services, Carrier alsooffers a wide array of preventativemaintenance, full maintenance, and/orextended service contracts which can

be custom-tailored to fulfill any servicerequirements. Carriers extensiveservice organization offers trained andexperienced service technicians inevery major city.

Superior corrosion protection All absorption chillers must be protect-ed from the corrosion that occurs oninternal machine surfaces when incontact with lithium bromide solution.The 16LJ absorption chiller includesan extremely effective corrosioninhibitor to provide an extra margin ofprotection against internal corrosion.

Other inhibitors may need exotic tubematerials in certain heat exchangers asthey are less effective and require morefrequent maintenance and analysis.The superior corrosion protection ofthe Carrier-Sanyo inhibitor allowsthe use of standard copper tubesthroughout the machine, which resultsin long machine life and dependableoperation.

Automatic purge extendsmachine life, ensures optimumefficiency and performance

The purge system on an absorptionchiller is essential to ensuring longmachine life and efficient operation.All absorption chillers operate in avacuum and generate hydrogen (andother noncondensable gases) in smallquantities, even when they are vacuumtight and properly inhibited. If notproperly controlled, these gases caninterfere with machine operation,therefore it is imperative that they beremoved to protect against internal

8/9/2019 16lj-1pd

4/32

4

corrosion, lithium bromide solutioncrystallization, and/or reduction ofchiller capacity. The Carrier-Sanyopurge system protects against thesepotential hazards by operating continu-ously during machine operation.

How the purge system operates During chiller operation, any noncon-densables that are present tend toaccumulate in the absorber section,which operates at the lowest pressureinternal to the machine. A slipstreamof lithium bromide solution flowsthrough an eductor from the absorbentpump discharge. This process createssuction, which draws the noncondens-ables from the absorber, entrainingthem with the solution flowing throughthe eductor. The eductor discharges thesolution and noncondensables into thepurge tank, where the noncondens-

ables are separated from the solution.The noncondensables remain in thepurge tank while the lithium bromidesolution returns to the absorber sump.As noncondensables accumulate in theexternal purge tank, they are isolatedfrom the chiller and cannot re-enter thechiller even during shutdown. A heatedpalladium cell connected to the storagechamber aids in elimination of hydro-gen from the purge tank at all times. Aunit-mounted purge pump further aidsin removing noncondensables from thepurge tank, when necessary.

Anticrystallization controls main-tain proper solution concentrationThe 16LJ chiller automatically limitssolution concentration in several ways toavoid both crystallization and overdilu-tion to provide dependable, trouble-freeoperation. Crystallization of the lithium

bromide solution depends on the combi-nation of temperature and concentra-tion. The Carrier-Sanyo concentrationcontrol system automatically monitorssolution concentration by continuouslysensing the temperature of the strongsolution and the refrigerant condensa-tion temperature. From this data, the

microprocessor controls are able todetermine the solution concentrationand automatically limit the heat input tothe chiller, if necessary, to prevent anoverconcentration condition fromoccurring. Constant monitoring of thecycle ensures continuous, reliable opera-tion even at cooling water temperaturesas low as 64 F. Upon shutdown, thechiller dilution cycle is automatically con-trolled to an optimized period rangingfrom 6 to 15 minutes by the micropro-cessor controls in conjunction with thegenerator solution temperature. This

optimized dilution operation period en-ables energy savings of the onboardchiller pumps as well as the chilled waterand cooling water pumps. The dilutioncycle also minimizes the time requiredfor chiller start-up by preventing overdil-ution of the solution.

16LJ single-effect absorptioncooling cycleThe 16LJ single-effect absorption chilleris comprised of an evaporator, absorber,condenser, hot water generator, solutionheat exchanger, refrigerant/absorbent

pumps, purge, controls, and auxiliaries.Water is used as the refrigerant in ves-sels maintained under low absolute pres-sure (vacuum).

The chiller operates on the principlethat under vacuum, water boils at a low

temperature (approximately 40 F),thereby cooling the chilled watercirculating through the tubes of theevaporator. A refrigerant pump is usedto circulate the refrigerant water overthe evaporator tubes to enhance theheat transfer process. The refrigerantvapor is removed as it is produced in

order to make the cooling processcontinuous. A lithium bromide solution(which has a high affinity for water)is used to absorb the water vapor. Asthis process continues, the lithiumbromide becomes diluted, whichreduces its absorption ability. Anabsorbent pump then transfers thisweak (diluted) solution to the genera-tor, where it is reconcentrated by theintroduction of hot water in the tubesof the generator to boil off the previ-ously absorbed water. The water vaporreleased on the shellside of the genera-

tor enters the condenser to be cooledand returned to a liquid state. At thispoint, the refrigerant water returns tothe evaporator to begin a new cycle.To remove heat from the machine, rel-atively cool water from a cooling toweror other source is circulated throughthe tubes of the absorber to removethe heat of vaporization. This samewater is then circulated through thetubes of the condenser. The strong (re-concentrated) solution from the gener-ator flows back to the absorber to be-gin a new cycle. For efficiency, thestrong solution from the generator ispassed through a solution heat ex-changer to preheat the weak solutionwhile precooling the strong solutionbefore returning to the absorber.

Features/Benefits (cont)

8/9/2019 16lj-1pd

5/32

5

Condenser

Generator

Absorber

Heat ExchangerCooling Water

Chilled Water

Evaporator

Cooling Water

Hot Water

16LJ ABSORPTION CHILLER COOLING CYCLE

8/9/2019 16lj-1pd

6/32

6

Options and accessories

ITEMFACTORY-INSTALLED

OPTIONFIELD-INSTALLED

ACCESSORY

Cooling Water Flow Switch X

High-Pressure Waterboxes, 300 psig X

Hot Water Control Valve X

Isolation Package X

Marine Waterboxes X

Shipping Configuration (1-piece or 2-piece) X

Special Tubing X

Victaulic Nozzle Connections X

Thermometer Set X

Model number nomenclature

16

16Hermetic Absorption Chiller

LJ 11

LJSingle Effect, Low Temperature Hot Water (1-Stage)

Unit Size Nominal Tons

11 7512 9013 11014 13521 15522 18023 210

24 240

31 27032 30041 33542 37551 42052 47053 525

609

8/9/2019 16lj-1pd

7/32

8/9/2019 16lj-1pd

8/32

8

UNIT 16LJ 11 12 13 14 21

NOMINAL COOLING CAPACITY (ton) 75 90 110 135 155

RIGGING WEIGHT (lb) 7,800 8,000 10,000 10,400 12,600

OPERATING WEIGHT (lb) 8,900 9,300 11,500 12,200 14,800

LITHIUM BROMIDE SOLUTION CHARGE (lb) 950 950 1,240 1,370 1,660

REFRIGERANT (WATER) CHARGE (lb) 130 130 220 200 240

CHILLED WATERPipe Connection Size (in.) 3 3 4 4 5

No. of Passes 5 5 3 3 3

COOLING WATERPipe Connection Size (in.) 5 5 5 5 6

No. of PassesAbsorber 4 4 4 4 4

Condenser 2 2 2 2 2

HOT WATERPipe Connection Size (in.) 4 4 4 4 5


UNIT 16LJ 22 23 24 31 32




LITHIUM BROMIDE SOLUTION CHARGE (lb) 1,790 2,170 2,360 2,720 2,960

REFRIGERANT (WATER) CHARGE (lb) 260 330 310 420 370





Condenser 2 2 2 2 2



UNIT 16LJ 41 42 51 52 53




LITHIUM BROMIDE SOLUTION CHARGE (lb) 3,440 3,710 4,300 4,790 5,340REFRIGERANT (WATER) CHARGE (lb) 550 510 570 640 680





Condenser 2 2 2 2 2



Physical data

8/9/2019 16lj-1pd

9/32

9

Dimensions

0

0

lavo

merebuT

0

telni

WTHn.i4

telni

WTH

.ni4

telni

WOCn.i5

telni

WHCn.i3

teltuo

WHCn.i3

teltuo

WOCn.i5

teltuo

WTH

0

noitcennoceriW

elohn.i8/3-1

A

35-7/834-3/4

7-1/4

29-3/8

74-5/8

59

13

n.i2

ksi

DerutpuR

0

0

telni

WHC

telniWTH

teltuo

WTH

tuo

WHC

tuo/ni

WOC

0

8/5-32R

)W(15

4/3-47

8/3-68

4/3-11

88(H)

7-7/8

931/8

88-1/2

81-3/482-1/2

0

21/8

807/8

3

)L(801

8/3-01

4/3-6

2/1-13

8/5-38

8/3-36

4/3-94

8/3-63

2/1-87

8/3-32

LEGEND

ANSI

AmericanNationalSta

ndardsInstitute

CHW

ChilledWater

COW

CoolingWater

HTW

HotWater

NOTES:

1.Dimensionsareshownininc

hes.

2.Dimensions(L),(W),(H)are

forstandardmachine.

3.

indicatesthepositionofanchorbolts.

4.Forroutinemaintenanceallo

w3ftclearanceonallsidesand

8in.abovechiller.

5.Fortuberemovalclearance,

refertodrawing.

6.Standardwaterpipingconne

ctionsareANSI150lbflanges.

7.Passquantityandnozzleloc

ationsareforstandardmachine;

otherconfigurationsareavailable.

UNIT16LJ

A(in.)

11

41/4

12

5

16LJ11AND

16LJ12

8/9/2019 16lj-1pd

10/32

10

Dimensions (cont)

PMUPEGRUP

EGRUP

0

0

431

eloh.ni8/3-1

noitcennoceriW

0

0

0

.ni2

ksiDerutpuR

teltuo

WTH

0

0

0

telni

WTH

.ni4

teltuo

WTHn.i4

telni

WOC

.ni5

telni

WHC

.ni4

teltuo

WHC

.ni4

teltuo

WOC

.ni5

teltuo/ni

WOC

telni

WHC

telni

WTH

teltuo

WTH

teltuo

WHC

lavomerebuT

)W(15

35-7/8

5

34-3/4

88(H)

122-1/8

29-3/8

114-3/4

01/8

3

8/5-32R

4/3-47

63/8

8

4/3-11

128-5/8

122-5/8

18-3/813-7/8

7-1/87-7/8

)L(841

21/8

807/8

3

4/3-6

8/3-01

2/1-13

8/3-36

8/5-38

2/1-87

4/3-94

8/3-63

8/3-32

LEGEND

ANSI

AmericanNationalSta

ndardsInstitute

CHW

ChilledWater

COW

CoolingWater

HTW

HotWater

NOTES:


hes.


forstandardmachine.

3.

indicatesthepositionof

anchorbolts.



8in.abovechiller.


refertodrawing.






16LJ13AND

16LJ14

8/9/2019 16lj-1pd

11/32

11

PM

U

P

GR

U

P

GR

U

P

0

00

0

0

0

noitcennoceriW

431

lavomerebuT

)L(151

122-1/8

16-7/8

8-5/89-3/8

eloh.ni8/3-1

R23-5

/8

8/5-9

8/3-93

121-1/8

112-7/8

34-1/4

7/86

3/4

3

telni

WTH

.ni5

teltuo

WTH

.ni5

telni

WOC

.ni6

telni

WHC

.ni5

teltuo

WHC

.ni5

teltuo

WOC

.ni6

.ni2

ksiDerutpuR

0

0

teltuo

WTH

teltuo

WTH

teltuo/ni

WOC

telni

WTH/teltuo

WHC

telni

WHC

)W(85

4/3-47

8/5-19

4/3-11

10-3/4

7-1/2

42-7/841-7/8

93(H)

83/4

827/8

3

4/1-09

48

35

8/5-93

8/7-32

8/7-76

21-7/8

LEGEND

ANSI

AmericanNationalSta

ndardsInstitute

CHW

ChilledWater

COW

CoolingWater

HTW

HotWater

NOTES:

1.Dimensionsareshownininches.


forstandardmachine.

3.




8in.abovechiller.


refertodrawing.

6.StandardwaterpipingconnectionsareANSI150lbflanges.




16LJ21AND

16LJ22

8/9/2019 16lj-1pd

12/32

12

Dimensions (cont)

teltuo

WTH

teltuo

WHC

WTH/WH

C

telni

0

0

telni

WTH

.ni6

teltuo

WTH

.ni6

telni

WOC

.ni8

telni

WHC

.ni5

teltuo

WHC

.ni5

teltuo

WOC

.ni8

lavomer

ebuT

0

)W(85

.ni2

ksiDerutpuR

0

0

93(H)

)L(29

1

WOC

teltuo/telni

0

8/5-32R

0

0

noitcennoceriW

8/7-76

35

8/5-93

8/3-09

48

8/7-32

4/3-47

4/1-19

4/3-11

10-5/87-1/2

42-7/841-7/8

telnimaetS

16-7/8

162-3/8

9-7/88-5/8

83/4

827/8

3

8/5-9

8/3-93

161-1/4

153

46-1/8

7/86

3/4

3

87

1

eloh.ni8/3-1

22-3/8

LEGEND

ANSI

AmericanNationalStandardsInstitute

CHW

ChilledWater

COW

CoolingWater

HTW

HotWater

NOTES:



forstandardmachine.

3.




8in.abovechiller.


refertodrawing.






16LJ23AND

16LJ24

8/9/2019 16lj-1pd

13/32

13

167-7/8

161-7/8

teltuo

WOC

teltuo

WT

H

WHC

telni

telni

WTH

teltuo

WHC

telni

WOC

8/7-8

45-1/8

151

18

10-1/4

11

03/8

4

8/5-32R

87

1

21/2

4/1-3

4

0

0

lavomer

ebuT

eloh.ni8/3-1

noitcennoceriW

0

46-1/8

9-1/2

2/1-57

4/3-47

104(H)

8/1-201

)W(0

6

4/3-11

4/1-001

8/1-39

8/1-85

24

42

45-1/2

0

0

0

telt

uoWTH

.ni3

ksiDerutpuR

00

11-1/4

10-7/810-5/8

)L(791

83/8

921/8

3 0

telni

WTH

.ni6

teltuo

WTH

.ni6

telni

WOC

.ni8

telni

WHC

.ni6

teltuo

WHC

.ni6

teltuo

WOC

.ni8

173-7/8

LEGEND

ANSI

AmericanNationalStandardsInstitute

CHW

ChilledWater

COW

CoolingWater

HTW

HotWater

NOTES:


hes.


forstandardmachine.

3.

indicatesthepositionof

anchorbolts.



8in.abovechiller.


refertodrawing.






16LJ31AND

16LJ32

8/9/2019 16lj-1pd

14/32

14

Dimensions (cont)

0

telni

WTH

.ni8

teltuo

WTH

.ni8

telni

WOC

.ni01

telni

WHC

.ni8

teltuo

WHC

.ni8

teltuo

WOC

.ni01

noitcennoceriW

10-7/8

48-1/849-3/8

0

113(H)

eloh.ni8/3-1

)W(46

.ni3

ksiDerutpuR

teltuo

WTH

0

W

HC

telni

teltuo

WTH

WOC

/telni

teltuo

WHC

teltuo

W

TH

telni

0

0

0

0

lavomer

ebuT

8/3-38

8/3-011

8/1-201

2/1-36

54

4/3-22

4/3-47

8/7-111

4/3-11

11-7/8

21-7/8

28-5/8

10-5/8

162-7/8

91/2

01

21/4

3

)L(891

2/1-9

4/1-5

4

161-1/4

151

45-1/8

33/4

4 2 0

871

R23

5-8/

LEGEND

ANSI

AmericanNationalSta

ndardsInstitute

CHW

ChilledWater

COW

CoolingWater

HTW

HotWater

NOTES:



forstandardmachine.

3.




8in.abovechiller.


refertodrawing.

6.StandardwaterpipingconnectionsareANSI150lbflanges.

7.Passquantityandnozzlelocationsareforstandardmachine;


16LJ41AND

16LJ42

8/9/2019 16lj-1pd

15/32

8/9/2019 16lj-1pd

16/32

16

Dimensions (cont)

A

B

B

D

CEF

G

J

K

AA

BB

6

A

B

B

D

CEF

G

J

K

AA

BB

6

NOTES:


hes.

2.Thebaseofthemachine

has

2-in.diameterhole

foran

chor

bolt.

3.Anchorboltsshouldbefixe

das

shown

in

detailed

foundation

drawings.

Washer

should

be

weldedtobase.

4.Drainditcharoundthefou

nda-

tionisrequired.

5.Surfaceoffoundationshouldbe

flatwithin1/4in.per20ft.

6.Anchorbolts,washersand

nuts

aresuppliedbycustomer.

FOUNDATION

UNIT16LJ

WEIGHT(lb)

DIMENSIONS(in.)

AA

BB

A

B

C

D

E

F

G

J

K

11

4,450

4,450

745/8

71/4

37/8

141/8

311/2

57/8

431/4

61/4

353/8

12

4,650

4,650

745/8

71/4

37/8

141/8

311/2

57/8

431/4

61/4

353/8

13

5,750

5,750

1143/4

71/4

37/8

141/8

311/2

57/8

431/4

61/4

353/8

14

6,100

6,100

1143/4

71/4

37/8

141/8

311/2

57/8

431/4

61/4

353/8

21

7,400

7,400

1127/8

77/8

37/8

153/4

393/8

57/8

511/8

77/8

431/4

22

7,850

7,850

1127/8

77/8

37/8

153/4

393/8

57/8

511/8

77/8

431/4

23

9,050

9,050

153

77/8

37/8

153/4

393/8

57/8

511/8

77/8

431/4

24

9,600

9,600

153

77/8

37/8

153/4

393/8

57/8

511/8

77/8

431/4

31

11,700

11,700

151

87/8

37/8

173/4

431/4

57/8

551/8

97/8

471/4

32

12,250

12,250

151

87/8

37/8

173/4

431/4

57/8

551/8

97/8

471/4

41

14,250

14,250

151

87/8

37/8

173/4

451/4

57/8

571/8

97/8

491/4

42

14,800

14,800

151

87/8

37/8

173/4

451/4

57/8

571/8

97/8

491/4

51

20,100

20,100

1457/8

51/8

71/2

201/8

63

71/8

771/8

97/8

667/8

52

21,750

21,750

1671/4

51/8

71/2

201/8

63

71/8

771/8

97/8

667/8

53

23,300

23,300

1867/8

51/8

71/2

201/8

63

71/8

771/8

97/8

667/8

16LJ11-42

16LJ51-53

8/9/2019 16lj-1pd

17/32

17

NOTE: Ratings are based on ARI 560-2000:44 F chilled water, 2.4 gpm/ton, .0001 ft2-hr-F/Btu fouling factor85 F cooling water, 3.6 gpm/ton, .00025 ft2-hr-F/Btu fouling factor203 F hot water, 2.19 gpm/ton, .0001 ft2-hr-F/Btu fouling factor

Part-load performancePart-load performance energy requirements for the 16LJchiller, ranging from 10% to 100% of full load, can beobtained by contacting a local sales office.

All performance data is rated in accordance with ARI560, latest edition, which defines Integrated Part LoadValue (IPLV) as a measure of part-load efficiency represent-ing the weighted average of overall chiller performancecalculated by the following equation:

IPLV = .01A + .42B + .45C + .12D where

A = COP (Coefficient of Performance) at 100% B = COP at 75% C = COP at 50% D = COP at 25% or minimum load

UNIT 16LJ 11 12 13 14 21 22 23 24

COOLING CAPACITY (Ton) 75 90 110 135 155 180 210 240

CHILLED WATER Flow Rate (gpm) 180 216 264 324 372 432 504 576 Pressure Drop (ft) 18.3 20.1 11.9 13.1 11.7 12.3 24.8 26.5

COOLING WATER Flow Rate (gpm) 270 324 396 486 558 648 756 864 Pressure Drop (ft) 12.2 12.9 21.8 26.1 36.0 23.4 34.5 35.3

HOT WATER Flow Rate (gpm) 164 197 241 296 339 394 460 526 Pressure Drop (ft) 10.3 4.0 9.9 10.8 10.1 10.1 9.9 10.1

UNIT 16LJ 31 32 41 42 51 52 53

COOLING CAPACITY (Ton) 270 300 335 375 420 470 525

CHILLED WATER Flow Rate (gpm) 648 720 804 900 1008 1128 1260 Pressure Drop (ft) 25.4 26.9 25.1 25.0 20.6 10.8 14.1

COOLING WATER Flow Rate (gpm) 972 1080 1206 1350 1512 1692 1890 Pressure Drop (ft) 32.4 32.9 33.0 34.3 31.3 29.4 39.1

HOT WATER Flow Rate (gpm) 591 657 734 821 920 1029 1150 Pressure Drop (ft) 9.7 9.6 9.4 9.5 9.3 12.4 16.3

Performance data

8/9/2019 16lj-1pd

18/32

18

Range of applicationThe 16LJ single-effect hot water absorption chiller is de-signed for standard water chilling applications of 75 to525 tons at standard ARI rating conditions. In most appli-cations, the minimum leaving chilled water temperature islimited to 41 F. The minimum continuous inlet watertemperature to the absorber-condenser circuit is 64 F,although lower temperatures are permitted during machinestart-up. Use of a cooling tower bypass is required if watertemperatures are anticipated to be less than this value.

UL certificationAll 16LJ chillers have met the necessary design and con-struction qualifications for certification per UnderwritersLaboratories. Each machine carries a UL listing and islabeled accordingly.

Vent and drain connectionsVent and drain connections are found on each waterbox.Provide a vent on the high points of all water piping and adrain on all low points. If shutoff valves are provided in themain water piping close to the chiller, some system water

will be lost when the heat exchangers are drained.It is recommended that pressure gages be provided at

the entering and leaving water connections to measurepressure drop through the heat exchanger. Gages may beinstalled as shown in the table below. Pressure gages in-stalled at the vent and drain connections do not includenozzle pressure losses.

Use a reliable manometer to measure pressure differen-tial when determining water flow. Regular gages are insen-sitive and do not provide an accurate measurement of flowconditions.

PRESSURE GAGE LOCATION

Rupture disk pipingAll 16LJ chillers are equipped with a rupture disk. It isrecommended that piping from the rupture disk be routedto appropriate areas away from the machine in accordancewith Carrier-Sanyos written installation instructions, thelatest version of ANSI/ASHRAE-15 (American NationalStandards Institute/American Society of Heating, Refriger-ation, and Air Conditioning Engineers), and any localjurisdictional requirements that may apply. Piping should

be adequately supported and the proper fittings should beprovided to allow periodic inspection of the disk. Refer tothe machine dimensional drawing for the exact location ofthe rupture disk on the chiller.

DESIGN AND TEST PRESSURES

LEGEND

Service accessTo perform routine service or maintenance, allow 3 ftclearance on all sides of the machine and 8 in. above thechiller. Tube removal space equal to the overall length ofthe unit should be provided on at least one end of the 16LJchiller. The absorber and condenser waterbox covers arehinged to permit easy opening and access for routine tubecleaning.

Thermal insulationThermal insulation of cold and hot machine surfacesshould be done after final installation at jobsite. Refer tothermal insulation drawings for details on application tech-

nique and specific areas of the machine to be insulated.Insulation material should be Armaflex or equal for coldsurfaces and fiberglass or equal for hot surfaces. Surfacearea requirements are per table below.

THERMAL INSULATION SURFACE AREAREQUIREMENTS (sq ft)

NUMBEROF PASSES

GAGE LOCATION(Cooler or Condenser)

Even Two gages in waterbox with nozzles

Odd One gage in each waterbox

UNIT 16LJRUPTURE DISK

SIZEPIPING CONNECTION

SIZE

11-24 2 in. 2 in. 150 psig RF flange

31-53 3 in. 3 in. 150 psig RF flange

RF Raised Face

UNIT 16LJ

INSULATION THICKNESS

Hot Surface Cold Surface

3 in. 11/8in. 2 in. 11/8in.

11 30.1 17.3 43.0 3.3

12 30.1 19.4 43.0 3.3

13 40.9 20.5 59.3 3.3

14 40.9 23.7 59.3 3.3

21 43.0 26.9 65.7 4.3

22 43.0 26.9 65.7 4.3

23 56.0 33.4 81.8 5.4

24 56.0 35.5 81.8 5.4

31 64.6 37.6 91.5 5.4

32 64.6 38.8 91.5 5.4

41 71.0 39.9 106.7 5.4

42 71.0 42.0 106.7 5.4

51 81.8 51.7 148.5 7.5

52 90.4 54.9 161.5 7.5

53 99.0 57.0 173.3 7.5

Application data

8/9/2019 16lj-1pd

19/32

19

Hot water control valveThe hot water control valve for the 16LJ chiller is not partof the standard scope of supply of the unit. It is available asa field-installed accessory and is intended for installation atthe jobsite. The valve should be installed in the hot waterreturn line leaving the generator section of the chiller. Theaccessory valve is a three-way globe mixing type with linearV-port trim. The valve has a carbon steel body with ANSI150 psig flanged end connections. Valve sizes are normally2 to 6 in., depending on specific job requirements.

A 4 to 20 mA signal from the chiller control paneoperates the valve through either an electric or pneumaticactuator. The control signal allows the valve to modulate theflow of hot water to meet the required cooling load. An electric actuator requires 120-1-60 vac power, supplied from aseparate source, to operate the motor. If the valve is of thepneumatic type, an I/P (current-to-pressure) transducer isprovided to convert the 4 to 20 mA control signal into a 3 to

15 psig input signal to the pneumatic actuator.

DIMENSIONS FLANGED ENDS (150 psig Carbon Steel)

VALVE SIZE (in.) A B C D E

2.5 10.88 23.75 12.81 7.25 6.25

3 11.75 28.25 15.0 7.56 8.13

4 13.88 29.25 15.0 9.38 9.13

6 17.75 38.25 17.5 11.56 12.88

ACCESSORY HOT WATER CONTROL VALVE(Pneumatic Actuator Shown)

NOTE: All dimensions are in inches.

609

8/9/2019 16lj-1pd

20/32

20

HEAT EXCHANGER STANDARD PASS AND NOZZLE LOCATION

LEGEND

HEAT EXCHANGER STANDARD WATERBOX AND CROSSOVER PIPE CONFIGURATION

LEGEND

AVAILABLE NOZZLE ARRANGEMENTS

LEGEND

UNIT 16LJEVAPORATOR ABSORBER CONDENSER GENERATOR

Pass Qty Inlet Location Pass Qty Inlet Location Pass Qty Outlet Location Pass Qty Inlet Location

11 5 R 4 R 2 R 6 R

12 5 R 4 R 2 R 4 R

13-22 3 R 4 L 2 L 4 L

23-51 3 R 2 L 2 L 3 R

52-53 2 L 2 L 2 L 3 R

L Left End (when facing control panel)R Right End (when facing control panel)

UNIT 16LJEVAPORATOR ABSORBER CONDENSER CROSSOVER PIPE

INCLUDEDInlet Outlet Inlet Outlet Inlet Outlet

11-53 N N M M M M Yes Yes

M Marine Type WaterboxN Nozzle-In-Head Waterbox

UNIT16LJ

CHILLED WATER COOLING WATER HOT WATER

6 pass 5 pass 4 pass 3 pass 2 pass4 + 2pass

3 + 2pass

3 + 1pass

2 + 2pass

2 + 1pass

6 pass 4 pass 3 pass 2 pass 1 pass

I O I O I O I O I O I O I O I O I O I O I O I O I O I O I O

11 L L R L L L R L L L R R L R L L R L R R R R L R R R

12 L L R L L L R L L L R R L R R R R L R R L R R R

13 R L L L R L L L L L R L R R L R L L L L R L L L

14 L L R L L L R L L L L L R L L L L R L L R L L L

21 L L R L L L R L L L L L R L L L L R L L L L R L L L

22 R L L L R L L L L L R L L L L R L L R L L L

23 L L R L L L R L L L L L R L R R L L L R L L L L R L L L R L

24 R L L L R L L L L L R L R R L L L R L L R L L L R L

31 L L R L L L L L R L R R L L L R R R L R R R L R

32 L L R L L L R L R R L L L R R R L R R R L R

41 L L R L L L R L R R L L L R L L R L L L R L


51 L L R L L L L L R L R R L L L R L L R L L L R L



I InO OutL Nozzle location on LEFT end (when facing control panel)R Nozzle location on RIGHT end (when facing control panel)

Standard nozzle arrangement

Application data (cont)

8/9/2019 16lj-1pd

21/32

21

UNIT VOLTAGE

460-3-60

208-3-60

LEGEND NOTES:1. MCA and MFA include absorbent pump, refrigerant pump, purge

pumps, palladium cell heater and control circuit.2. kW includes refrigerant pump, absorbent pump, purge pump, pal

ladium cell heater and control circuit.3. Control circuit voltage = 24-1-60.4. Palladium cell voltage = 230-1-60 (460-3-60 power supply) and

208-1-60 (208-3-60 power supply).

UNIT16LJ

PUMP/MOTOR (kW) RLA TOTALAMPS

MCA MFA kWAP RP PP AP RP PP

11 1.1 0.2 0.75 2.7 1.2 1.45 6.2 7.5 10 4.3

12 1.1 0.2 0.75 2.7 1.2 1.45 6.2 7.5 10 4.3

13 1.1 0.2 0.75 2.7 1.2 1.45 6.2 7.5 10 4.3

14 1.1 0.2 0.75 2.7 1.2 1.45 6.2 7.5 10 4.3

21 2.2 0.2 0.75 5.1 1.2 1.45 8.6 10.4 15 5.9

22 2.2 0.2 0.75 5.1 1.2 1.45 8.6 10.4 15 5.9

23 2.2 0.3 0.75 5.1 1.3 1.45 8.7 10.4 15 5.9

24 2.2 0.3 0.75 5.1 1.3 1.45 8.7 10.4 15 5.9

31 3.0 0.3 0.75 6.7 1.3 1.45 10.3 12.9 20 7.2

32 3.0 0.3 0.75 6.7 1.3 1.45 10.3 12.9 20 7.2

41 3.0 0.3 0.75 6.7 1.3 1.45 10.3 12.9 20 7.2

42 3.0 0.3 0.75 6.7 1.3 1.45 10.3 12.9 20 7.2

51 3.0 0.3 0.75 6.7 1.3 1.45 10.3 12.9 20 7.2

52 3.0 0.3 0.75 6.7 1.3 1.45 10.3 12.9 20 7.2

53 3.0 0.3 0.75 6.7 1.3 1.45 10.3 12.9 20 7.2

UNIT16LJ

PUMP/MOTOR (kW) RLA TOTALAMPS

MCA MFA kWAP RP PP AP RP PP

11 1.1 0.2 0.75 5.4 2.2 3.2 12.7 15.6 20 4.0

12 1.1 0.2 0.75 5.4 2.2 3.2 12.7 15.6 20 4.0

13 1.1 0.2 0.75 5.4 2.2 3.2 12.7 15.6 20 4.0

14 1.1 0.2 0.75 5.4 2.2 3.2 12.7 15.6 20 4.0

21 2.2 0.2 0.75 10.2 2.2 3.2 17.5 21.7 30 5.5

22 2.2 0.2 0.75 10.2 2.2 3.2 17.5 21.7 30 5.5

23 2.2 0.3 0.75 10.2 2.4 3.2 17.7 21.9 30 5.6

24 2.2 0.3 0.75 10.2 2.4 3.2 17.7 21.9 30 5.6

31 3.0 0.3 0.75 13.8 2.4 3.2 21.3 27.5 40 7.0

32 3.0 0.3 0.75 13.8 2.4 3.2 21.3 27.5 40 7.0

41 3.0 0.3 0.75 13.8 2.4 3.2 21.3 27.5 40 7.0

42 3.0 0.3 0.75 13.8 2.4 3.2 21.3 27.5 40 7.0

51 3.0 0.3 0.75 13.8 2.4 3.2 21.3 27.5 40 7.0

52 3.0 0.3 0.75 13.8 2.4 3.2 21.3 27.5 40 7.053 3.0 0.3 0.75 13.8 2.4 3.2 21.3 27.5 40 7.0

AP Absorbent PumpMCA Minimum Circuit AmpacityMFA Maximum Fuse AmpsPP Purge PumpRLA Rated Load AmpsRP Refrigerant Pump

STANDARD VOLTAGE(3-Ph, 60 Hz)

FOR USE ONSUPPLY VOLTAGES

208 200 to 208-volt systems

460 440 to 480-volt systems

Electrical data

8/9/2019 16lj-1pd

22/32

22

Microprocessor controlsMicroprocessor controls provide the safety, interlock,capacity control, and indications necessary to operate thechiller in a safe and efficient manner.

Control systemThe microprocessor control on each 16LJ chiller isfactory-mounted, factory-wired, and factory-tested to

ensure chiller protection and efficient capacity control. Inaddition, the program logic ensures proper starting, stop-ping, and cycling of the chiller.

Features

Control system

Diagnostic check Keypad interface for display, set point control and

system configuration Local and remote operation modes Recall of alarm/alert messages Extensive diagnostic and service capabilities Advanced crystallization protection

Safety cutouts Absorbent pump motor overload Refrigerant pump motor overload Purge pump motor overload Low chilled water temperature

Low cooling water temperature Generator high temperature Generator high pressure Chilled water flow Optional cooling water flow Chilled water pump interlock Cooling water pump interlock High solution concentration

Overrides

Solution concentration control Desolidification mode

Capacity control

Leaving chilled water control Chilled water reset

Indications

Chiller operating status Dilution cycle Power-on Pre-alarm alert Alarm

Safety shutdown messages Elapsed time (hours of operation) Remote/local Standby mode

Controls

8/9/2019 16lj-1pd

23/32

23

FAN

CONTROL DISPLAY(SEE DETAIL BELOW)

TERMINAL BLOCK

PURGE INDICATIONLAMP

TERMINAL BLOCK

TERMINAL BLOCKFOR POWER SUPPLY

GROUND TERMINAL

EMERGENCY STOPBUTTON

PURGE PUMPON-OFF SWITCH

CHILLER / HEATER

STOP RUN

SET B ACK

#1ABS PUMP

#2ABS PUMP

REF PUMP

PURGE PUMP

SAFETY CIRCUIT

P OWE R

CHILLER ALARM

STAND BY

D ILU TIONB U ZZER S TOP

OPERATIONSTOP R UN

R EMOTE

L OCA L

CHILLER / HEATER

STOP RUN

SET BACK

#1ABS PUMP

#2ABS PUMP

REF PUMP

PURGE PUMP

SAFETY C IRCUIT

POWER

CHILLER ALARM

STAND BY

DILUTIONBUZZER STOP

OPERATIONSTOP RUN

REMOTE

LOCAL

10

1

5

3

27

9

6

8

4

TYPICAL 16LJ ABSORPTION CHILLER CONTROL PANEL

FRONT AND LEFT SIDE VIEW

NUMBER DESCRIPTION

1 Data display

2 Remote/local select button with lamp

3 Operation select button with lamp

4 Alarm indication lamp

5 Power indication lamp

6 Safety circuit indication lamp

7 Dilution indication lamp

8 Stand by indication lamp

9 Stop indication lamp

10 Operation indication lamp

CONTROL DISPLAY

8/9/2019 16lj-1pd

24/32

24

Controls (cont)

CONTROL RELAY

CIRCUIT PROTECTOR

TRANSFORMER

TERMINAL BLOCK

TRANSFORMER

I/O BOARD

FUSE

FUSE

MAIN CIRCUIT

BREAKER

TRANSFORMER

ELECTROMAGNETIC

CONTACTOR

TERMINAL BLOCK

TYPICAL 16LJ ABSORPTION CHILLER CONTROL PANEL (cont)

INSIDE AND RIGHT SIDE VIEW

8/9/2019 16lj-1pd

25/32

25

Typical piping

Supply

Header

Return

Header

Secondary

Chilled

Waterpump

B

ypassvalve

Primary

Ch

illedwaterpump

Air

Conditioner

Hotwater

Pump

Hotwater

3wayvalve

Coolingwaterpum

p

Cooling

tower

M

akeup

w

ater

Todrain

Todrain

FC

C

TTTTT

PP

T

P

P P P

Airvent

NOTES:

1.Allitemsexternaltothedottedlineintheabovediagramaretobefield-supplied.

2.Pipingandcomponen

tsshownaretypicaltoindicategeneralpoint-of-connectiononlyandarenotintended

toshowdetailsfor

aspecificinstallation.

Installationandpipingshouldbedoneinaccordancewith16LJInstallationInstructions.

3.Referto16LJchillerd

imensional,foundationandfieldwiringdraw

ingsfordetailsofaspecificmodelsize.

4.Installthermometersandpressuregagesatlocationsconvenient

forservicingintheinletandoutletwaterlin

estothechiller.

5.Locationofthechilledwater,coolingwaterandhotwaterpumpsaswellastheexpansiontankmusttakeintoaccountthe

hydrostaticheadtoensurethatthewaterboxdesignpressureisn

otexceeded.

6.Provideventanddrainvalvesineachwaterbox.

7.Provideatowerbypassvalveifthetemperatureofthecoolingwa

terreturningfromthetowercanfallbelow6

4F.

LEGEND

FlowMeter

PressureGage

Pump

StopValve

StopValveforCleaningLiquid

Strainer

Thermometer

Thermostat

8/9/2019 16lj-1pd

26/32

26

Single-Effect, Low Temperature HermeticAbsorption Liquid Chillers

Size Range: 75 to 525 Tons

Carrier-Sanyo Model Number: 16LJ

Part 1 General

1.01 SYSTEM DESCRIPTION

Electronically controlled, single effect (one-stage) absorp-tion liquid chiller utilizing hermetic refrigerant and absor-bent pumps, lithium bromide solution as the absorbent,and water as the refrigerant. Low temperature hot watershall be supplied to the generator as the heat source.

1.02 QUALITY ASSURANCE

A. Chiller performance shall be rated in accordancewith ARI Standard 560-2000.

B. Chiller shall be manufactured in accordance withANSI/ASHRAE 15 (latest edition) Safety Code forMechanical Refrigeration.

C. Chiller shall be designed and constructed to meetapplicable UL requirements and shall bear the UL

label.D. Each chiller shall undergo a series of standard fac-

tory tests to ensure that the unit is leak tight, that allelectrical components operate as intended, and thatevery aspect of unit fabrication meets stringent qual-ity standards in accordance with good practice andthe manufacturers quality assurance requirements.

1. The shellside of each chiller shall be leak testedby pressurizing to 7 psig with nitrogen and thenchecked by spraying a soap and water mixtureon all welds, tube joints and/or gasketed jointsto identify any major leaks. Afterward, a massspectrometer test shall be performed by evacu-

ating the unit to 0.01 mm Hg absolute, cover-ing the machine with a vinyl tent andintroducing helium gas under the tent. Anyremaining leaks will allow the helium to bedrawn into the shellside of the machine. Theacceptable total leak rate as measured by themass spectrometer test shall not exceed.000002 cc/sec standard air.

2. The tubeside of the evaporator, absorber, con-denser and generator shall be hydrostaticallytested at 1.5 times rated design pressure andheld for 1 hour.

3. All machine wiring shall undergo an insulationresistance test. The machine control panel andall electrical components shall also be function-ally tested to verify continuity and properelectrical operation.

4. Final assembly inspection shall consist of verify-ing that all valves, controls, instrumentation,pumps, purge components and all othermachine components have been properlyinstalled on the machine.

5. Each unit shall be checked for overall appear-ance and dimensional accuracy.

6. Final inspection shall be performed on eachunit to check that the nameplate data is correctand that all accessories are furnished asrequired.

1.03 DELIVERY, STORAGE, AND HANDLING

A. Unit shall be stored and handled in accordance withthe manufacturer's recommendations.

B. Unit shall be factory-charged with lithium bromidesolution if the machine is configured to ship in onepiece. For shipments of multiple pieces, charging oflithium bromide solution shall be performed at thejobsite in accordance with the manufacturers writ-ten instructions.

C. All units shall be shipped with 3 psig nitrogenpressure.

D. Chiller shall be shipped with nameplates indicatingname of manufacturer, model size, serial numberand all other pertinent machine data.

1.04 WARRANTY

Manufacturer shall guarantee the chiller against defects in

materials or workmanship for a period of one year fromdate of initial operation or 18 months from date of ship-ment, whichever occurs first. Manufacturer shall providethe labor to repair or replace any part found to be defectivein material or workmanship within the warranty period.

Part 2 Products

2.01 EQUIPMENT

A. General:

Absorption liquid chiller shall include evaporator,absorber, condenser, generator, solution heatexchanger, refrigerant/absorbent pumps, purgesystem, piping, wiring, controls and auxiliaries.Standard shipment of the machine shall be in onepiece. Initial charge of lithium bromide shall beshipped inside the machine for all single-piece ship-ments. For multiple-piece shipments, initial chargeof lithium bromide shall be shipped separately forcharging at the jobsite. Generator shall be designedfor operation on low temperature hot water as spec-ified on the equipment schedule. A rupture disk shallbe provided as standard on all machines.

B. Operating Characteristics:

1. Chiller operation shall be characteristic of asingle-effect absorption cycle. The weaksolution pumped from the absorber to thegenerator shall initially pass through a solution

heat exchanger to improve operating efficiencyby preheating the weak solution on the tubeside with the strong solution returning from thegenerator on the shellside.

2. Unit shall be capable of continuous operationfrom 100 to 10% capacity, with enteringcondenser water temperatures as low as 64 Fwithout the need for a cooling tower bypassvalve. Thermostat on/off control of the coolingtower fan is recommended when cooling watertemperature falls below 64 F.

Guide specifications

8/9/2019 16lj-1pd

27/32

27

C. Heat Exchangers:

1. All heat exchangers shall be of shell and tubeconstruction with shells, tube sheets, tubesupport sheets and waterboxes fabricated ofcarbon steel. All heat exchangers shall incorpo-rate straight tubes. Tube material shall becopper for all heat exchangers. The evaporator,absorber, condenser and generator tubes shallbe rolled into grooved tubesheets and expandedinto tube support sheets, and shall be individu-ally replaceable.

2. The evaporator, absorber and condenser water-boxes shall be designed for 150 psig workingpressure. The absorber and condenser water-boxes shall be hinged to permit access toall tubes from either end. Nozzle-in-head(NIH) type waterboxes shall be supplied on theevaporator while the absorber-condenser water-boxes shall be marine type. Waterboxes shall beprovided with vent and drain connections.Epoxy painting of the waterboxes and tube

sheets shall be provided for corrosion protec-tion. ANSI 150 psig R.F. (raised face) flangesshall be furnished on all waterbox nozzleconnections.

3. The generator tube side shall be designed for150 psig working pressure for use with lowtemperature hot water.

4. A solution heat exchanger shall be an integralpart of the machine to increase cycle efficiencyby preheating the weak solution on its way tothe generator while pre-cooling the strong solu-tion returning from the generator.

5. Dispersion trays shall evenly distribute refriger-

ant over the evaporator tubes and lithium bro-mide over the absorber tubes. These trays shallbe fabricated of stainless steel to ensure contin-uous, corrosion-free, high-efficiency operation.

D. Pump/Motors:

Refrigerant and absorbent pump/motor assembliesshall be of the self contained, leakproof, hermetictype, without an external seal water system tominimize air leakage into the machine. Lubricationand cooling shall be accomplished by the fluid beingpumped; auxiliary water piping for cooling andlubrication shall not be acceptable. Each pumpcasing shall be welded into the piping at the factoryand shall be furnished with isolation valves on thesuction and discharge side. Each pump shall includespring-loaded, wear-compensating tapered carbonbearings to ensure long life and reliability. Pump/motor assemblies shall be designed for 25,000 hoursof normal operation between inspections.

E. Purge System:

An automatic purge system shall be furnished toprovide a continuous purging action whenever thechiller is in operation to assure long machine life andefficient performance. Noncondensables shall beremoved from the absorber by a liquid eductor,

which shall use flow from the absorbent pump tocreate a suction. Noncondensables shall be storedexternal to the unit and shall be prevented from diffusing back into the machine when the unit is nooperating. A palladium cell shall be provided toautomatically vent hydrogen gas from the purgechamber to the atmosphere. It shall be continuouslyenergized, even during machine shutdown. Furthe

evacuation of the external storage chamber shall beaccomplished with a factory-mounted purge pumppiped and wired to the machine. The need to oper-ate the purge pump shall be indicated on the frontof the control panel.

F. Controls, Safeties and Diagnostics:

1. Controls:

a. The chiller shall be provided with a factoryinstalled and factory-wired microprocessorcontrol system with modular componenconstruction. The controls shall be of thePID type and shall continuously monitorthe operation of the chiller and perform

self-diagnostic checks to ensure that alcontrol limits are satisfied and maintainedThe system shall include a control centerpower supply, temperature sensors, pressure sensors and all necessary auxiliarydevices required for safe and proper chilleoperation housed in a NEMA-1 enclosurewith a hinged, lockable door. Control powershall be 24-1-60.

The chiller control system shall have the ability to interface and communicate with abuilding management system with additionahardware.

The control system shall include a 7-segmentlight-emitting diode (LED) display screenwith function keys, emergency stop buttonand indication lamps. The microprocessorshall be configurable to display either Englishor metric units.

b. The control panel display screen shall allowan operator to easily set and display theoperating mode and configurable settings othe machine. The display shall indicatepower on, chiller run status, safety circuitand alarm status, remote/local operationstandby mode and dilution cycle operationData input and machine settings shall be

done via a data select key and shall allowscrolling through the individual chilleparameter settings.

8/9/2019 16lj-1pd

28/32

28

c. Monitoring the operation of the chiller shallbe done on a continuous basis. The displayshall indicate all pertinent system operatingparameters and alarms, as necessary, includ-ing the following:

1) Chiller operating hours.2) Chilled water inlet temperature.3) Chilled water outlet temperature.4) Chilled water temperature set point.5) Cooling water inlet temperature.6) Condenser temperature.7) Generator temperature.8) Hot water inlet temperature.9) Hot water outlet temperature.

10) Absorbent pump start counter and oper-ating hours.

11) Refrigerant pump start counter andoperating hours.

12) Purge pump start counter and operatinghours.

13) Chiller start counter.

14) Purge tank pressure.d. Capacity control shall be by means of elec-tronically modulating the accessory hotwater control valve to maintain the tempera-ture of the chilled water. Load modulationshall be from 100% to 10% of machine fullload under normal ARI conditions. The hotwater control valve shall be positioned by aPID control algorithm to ensure precise con-trol of desired chilled water temperaturewithout hunting or overshooting the setpoint.

e. The microprocessor control system shallinclude a programmed sequence to ensure

machine readiness prior to machine start-up.The microprocessor shall automaticallyenable and interlock the chilled water pump,cooling water pump and cooling tower fansupon chiller activation.

f. Upon request to start the chiller, the controlsystem shall start the chilled water pump andverify chilled water flow. The controller shallthen start the cooling water pump and verifyinterlock signal, before starting tower fan(s),absorbent pump and refrigerant pump.

g. The control system shall automatically senseimpending abnormalities in the absorption

operating cycle and take the followingactions to either self-correct and/or limit themachine from approaching cycle crystalliza-tion line:

1) Close hot water control valve for a setperiod.

2) Stop the operation of the machine afterperforming a dilution cycle if the solu-tion concentration is still over the pre-setlevel.

h. The rate at which the accessory hot watercontrol valve is opened shall be preciselycontrolled.

i. The control system shall automatically cyclethe refrigerant pump whenever the leavingchilled water temperature falls below thedesired set point. The chilled water pumpshall remain on and when the leaving chilledwater temperature rises above the set point,the refrigerant pump shall automaticallyrestart.

j. The control center shall allow reset of thechiller water temperature set point basedupon any one of the following criteria:

1) Chilled water reset based on an external4 to 20 mA signal.

2) Chilled water reset based on coolingwater inlet temperature.

k. When the stop button is pressed or remotecontacts open the control center shall imme-diately drive the hot water control valve tothe closed position and initiate the normalshutdown sequence including dilution cycle.The display shall indicate that the machine isin the dilution cycle.

2. Safeties:

a. Unit shall automatically shut down when anyof the following conditions occur. In addi-tion, the chiller goes into alarm mode andindicates the reason for the shutdown on thechiller data display.

1) Absorbent pump motor overload.2) Refrigerant pump motor overload.3) Purge pump motor overload.

4) Low chilled water temperature.5) Low cooling water temperature.6) Generator high temperature.7) Generator high pressure.8) Loss of chilled water flow.9) (Optional) loss of cooling water flow.

10) Loss of chilled water pump interlock.11) Loss of cooling water pump interlock.12) High solution concentration.

b. The control system shall detect conditionsthat approach protective limits and take self-corrective action prior to an alarm occur-ring. The system shall automatically reduce

chiller capacity when any of the followingparameters are outside their normal operat-ing range:

1) Low cooling water inlet temperature.2) High cooling water inlet temperature.3) High solution concentration.

3. Diagnostics and Service:

a. The chiller control system shall execute aseries of self-diagnostic checks wheneverpower is first turned on to determine if tem-peratures are within pre-start limits, therebyallowing start-up to proceed. If any of the

Guide specifications (cont)

609

8/9/2019 16lj-1pd

29/32

29

limits are exceeded, an alert message will bedisplayed, informing the operator of thecause of the pre-start alert.

b. The control system shall provide an alarmdisplay on the front of the panel for any sen-sor that has failed. These sensors include:

1) Chilled water inlet temperature.

2) Chilled water outlet temperature.3) Cooling water inlet temperature.4) Cooling water outlet temperature.5) Cooling water intermediate temperature.6) Hot water inlet temperature.7) Hot water outlet temperature.8) Condenser temperature.9) Refrigerant temperature.

10) Diluted solution temperature.11) Generator temperature.12) Purge tank pressure.13) Steam condensate temperature.

c. The chiller controls shall display mainte-nance messages and alarms when efficient

operation of the chiller is in jeopardy orwhen immediate attention is necessary.When operating conditions are predicted tobe problematic, the following messages shallbe displayed on the panel:

1) Purge tank high pressure.2) Cooling water tubes excessive fouling.3) Cooling water high temperature.4) Power failure.

4. Building Control System Interface:

The chiller control system shall have the abilityto interface and communicate directly to thebuilding control system with additional field-

installed hardware and software.G. Electrical Requirements:

1. Power supply to the unit shall be 3 ph, 60 Hzwith voltages of 208 or 460 as specified on theequipment schedule. A control transformershall provide 24-volt single-phase secondarypower for the control panel.

2. Contractor/owner shall supply and installthe electrical power line and all auxiliary electri-cal protection devices per local code require-ments and as indicated necessary by the chillermanufacturer.

3. Contractor/owner shall supply and install elec-

trical wiring and devices required to interfacethe chiller controls with the building controlssystem if applicable.

H. Piping Requirements:

1. Piping and instrumentation for the chilledwater, cooling water and hot water shall be sup-plied and installed by the contractor/owner.

2. Absorber-condenser crossover piping shall befurnished by the chiller manufacturer.

3. Cooling water flow switch shall be suppliedby either the chiller manufacturer or thecontractor/owner.

4. Piping from the rupture disk shall be providedand installed by the contractor/owner and pipedin accordance with the chiller manufacturerswritten instructions and any local jurisdictionarequirements.

I. Thermal Insulation:

Insulation of the evaporator, refrigerant pumpsump, piping and chilled water headers, in additionto any hot surfaces shall be field supplied andinstalled on the machine. Chiller manufacturer shalrecommend the material and specify surface area tobe insulated.

J. Sound Level:

The overall sound pressure level of the chiller shalnot exceed 80 dbA when measured per ARStandard 575-1994.

K. Start-up:

1. Unit manufacturer shall provide a factorytrained service representative, employed by thechiller manufacturer, to perform and/or supervise chiller pressure test (when required), chargechiller with refrigerant (water) and lithiumbromide solution, place unit into operation, andcalibrate all controls in accordance with themanufacturers written start-up, operating andmaintenance instructions.

2. After unit start-up has been performed, the samefactory representative shall be available for aperiod of instruction not to exceed 4 hours toinstruct the owner's personnel in the prope

start-up, operating and maintenance procedures3. Manufacturer shall provide the following documentation and literature:

a. Installation Instructions.

b. Start-Up, Operating and MaintenanceInstructions.

c. Dimensional Drawing.

d. Foundation Drawing.

e. Field Wiring Diagram.

L. Options and Accessories:

1. Marine Waterboxes:

Marine waterboxes with removable covers to

facilitate tube cleaning and maintenance shalbe furnished when specified on the equipmenschedule.

2. High-Pressure Waterboxes:

Waterboxes rated for 300 psig working pressure with removable covers shall be furnishedwhen specified on the equipment schedule.

3. Special Tubing:

Tubing of non-standard materials, geometry owall thickness shall be provided when specifiedon the equipment schedule.

8/9/2019 16lj-1pd

30/32

30

4. Shipping Configuration:

Chiller shall ship either fully assembled or inmultiple pieces as specified on the equipmentschedule.

5. Victaulic Nozzle Connections:

Victaulic grooves shall be provided on all water-box nozzle connections when specified on the

equipment schedule.6. Cooling Water Flow Switch:

Cooling water flow switch, rated for either150 psig or 300 psig, shall be factory suppliedwhen specified on the equipment schedule.

7. Isolation Package:

A vibration isolation package consisting of neo-prene isolation pads shall be furnished whenspecified on the equipment schedule.

8. Thermometer Set:

A package of 5 adjustable angle thermometersshall be factory-supplied for field installationwhen specified on the equipment schedule.Each shall have a 9 in. scale with a workingrange of 0 F to 120 F and shall be equippedwith a -in. NPT brass well.

9. Hot Water Control Valve:An accessory hot water control valve shall beprovided when specified on the equipmentschedule.

Guide specifications (cont)

609

8/9/2019 16lj-1pd

31/32

8/9/2019 16lj-1pd

32/32

Documents

16lj-1pd