Carrier 19XL Specifications

19XL 50/60 HzHermetic Centrifugal Liquid Chillers with HCFC–22 and HFC–134aInstallation InstructionsFor Units Produced Afte

ContentsList of FiguresFigure 1 — Model Number IdentificationFigure 2 — Typical 19XL Installation (300 to 600 Tons [1055 to 2110 kW])Figure 3 — Machin

ContentsFigure 14 — Typical 19XL Low Profile Isolation AssemblyFigure 15 — Typical Nozzle PipingFigure 16 — Piping Flow DataFigure 17 — Optional Pumpo

ContentsFigure 26 — 19XL Typical Field Wiring with Optional Unit-Mounted StarterFigure 27 — 19XL Typical Field Wiring with Free-Standing StarterFigure

IntroductionGeneralThe 19XL machine is factory assembled, wired, and leak tested. Installation (not by Carrier) consists primarily of establishing wat

InstallationReceiving the Machine Inspect Shipment1.Inspect for shipping damage while machine is still on shipping conveyance. If machine appears to b

Identify Machine The machine model number, serial number, and heat exchanger sizes are stamped on machine identification nameplate (Figure 1, Figure 2

Rig Machine AssemblySee rigging instructions on label attached to machine. Also refer to rigging guide Figure 3, physical data in Figure 4, and Table

Rig Machine Components Refer to instructions below, Figure 5, Figure 6, Figure 7, Figure 8, Figure 9, and Carrier Certified Prints for machine compone

Note: Wiring must also be disconnected. Label each wire before removal (see Carrier Certified Prints). In order to disconnect the starter from the mac

To Separate Cooler and Condenser 1. Turn vessel separation feet into lowered position (Figure 5, Item 1). 2. Disconnect the flared fitting on the refr

DO NOT VENT refrigerant relief devices within a building. Outlet from rupture disc or relief valve must be vented outdoors in accordance with the late

8. Disconnect the rabbet-fit connectors on the tube sheets (Figure 7, Item 7). 9. Rig vessels apart.To Separate the Compressor from the Cooler1. Unbol

7. Unbolt the compressor discharge line (Figure 6, Item 1). 8. Cover all openings. 9. Disconnect motor power cables at the starter lugs (Figure 7, Ite

To Rig Compressor Note: The motor end of the 19XL compressor is heavy and will tip backwards unless these directions are followed: 1. Remove rigging b

Install Machine Supports Install Standard Isolation Figure 10 and Figure 11 show the position of support plates and shear flex pads, which together fo

Install Spring Isolation Spring isolation may be purchased as an accessory from Carrier for field installation. It may also be field supplied and inst

Connect PipingInstall Water Piping to Heat Exchangers Install piping using job data, piping drawings, and procedures outlined below. A typical piping

1. Offset pipe flanges to permit removal of waterbox cover for maintenance and to provide clearance for pipe cleaning. No flanges are necessary with m

7. Install waterbox vent and drain piping in accordance with individual job data. All connections are 3/4 -in. FPT. 8. Install waterbox drain plugs in

Install Vent Piping to Relief DevicesThe 19XL chiller is factory equipped with relief devices on the cooler and condenser shells. Refer to Figure 21 a

length of flexible tubing or piping near the device is essential on spring-isolated machines.4. Cover the outdoor vent with a rain cap and place a con

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

Connect Control Inputs Connect the control input wiring from the chilled and condenser water flow switches to the starter terminal strip. Wiring may a

Connect Control Outputs Connect auxiliary equipment, chilled and condenser water pumps, and spare alarms as required and indicated on job wiring drawi

Freestanding, Field-Installed StarterAssemble and install compressor terminal box in desired orientation, and cut necessary conduit openings in condui

Insulate Motor Terminals and Lead Wire Ends Insulate compressor motor terminals, lead wire ends, and electrical wires to prevent moisture condensation

Connect Power Wires to Oil Heater ContactorConnect power wiring to oil heater contactor using a separate power source and fused disconnect. Refer to F

Connect Wiring from Starter to Power PanelConnect control wiring from main motor starter to the machine power panel. All control wiring must use shiel

Note: Conductors and drain wire must be 20 AWG (American Wire Gauge) minimum stranded, tinned copper. Individual conductors must be insulated with PVC

If a cable with a different color scheme is selected, a similar color code should be adopted for the entire network. At each system element, the shiel

11. Connect the RED wire to the matching location on the terminal strip. 12. Connect the WHITE wire to the matching location on the terminal strip. 13

Note: Insulation of the waterbox covers is applied only at the jobsite by the contractor. When insulating the covers, make sure there is access for re

DO NOT REUSE disposable (nonreturnable) cylinders or attempt to refill them. It is DANGEROUS AND ILLEGAL. When cylinder is emptied, evacuate remaining

Note: For medium voltage motors add 85 lbs (39 kg) to above for 60-Hz motors and 145 lbs (66 kg) for 50-Hz motors. Total compressor/motor weight is th

Legend*Included in total compressor weight. †Included in total cooler weight.**Weight of optional factory-mounted starter is not included and must be

* Rigging weights are for standard tubes of standard wall thickness. For special tubes refer to the 19XL Computer Selection Program.† Refrigerant char

*Add to heat exchanger weights for total weight.Table 4 — Additional Heat Exchanger Weight for Marine Waterboxes*Heat Exchanger Frame, Pass English S

LegendCS — Contact Syracuse MWB — Marine Waterbox NIH — Nozzle-In-Head * These weights are for reference only. The 150 psig (1034 kPa) standard waterb

LegendCS — Contact Syracuse MWB — Marine Waterbox NIH — Nozzle-In-Head * These weights are for reference only. The 150 psig (1034 kPa) standard waterb

Table 6 — Relief Device LocationsRelief Valve Outlet Size Location Quantity1-in. NPT Female ConnectorCooler 11-in. NPTFemale ConnectorCondenser 21-in.

Figure 1 — Model Number Identification

Figure 2 (Front View) — Typical 19XL Installation (300 to 600 Tons [1055 to 2110 kW]) (See next page for Rear View)

Figure 2 (Rear View) — Typical 19XL Installation (300 to 600 Tons [1055 to 2110 kW])

CAUTIONCAUTION!DO NOT STEP on refrigerant lines. Broken lines can whip about and release refrigerant, causing personal injury. DO NOT climb over a mac

Heat Exchanger (Cooler and Condenser) SizeCenter of Gravity — Approximate Dimensions Maximum Rigging Weight (Without Refrigerant Charge)A (Length) B (

Heat Exchanger Code (Cooler and Condenser)A (Length)B (Width) C (Height)Nozzle Size (in.) (Nominal Pipe Size)2 Pass* 1 or 3 Pass†ft-in. mm ft-in. mm f

Figure 5 — 19XL Condenser Drain

Figure 6 — 19XL Motor End View

Figure 7 — 19XL Machine Top View

Figure 8 — 19XL Refrigerant Return

Figure 9 — 19XL Oil Reclaim System

Heat Exchanger (Cooler/Condenser)A Bft-in. mm ft-in. mm40-43 5-5 3/4 1670 13-0 1/4 396850-53 6-0 1/4 1835 13-0 1/4 396855-58 6-0 1/4 1835 17-8 3/4 540

Figure 11 — Standard Isolation

Figure 12 — Accessory Isolation

CAUTIONCAUTION!DO NOT LOOSEN a packing gland nut before checking that the nut has a positive thread engagement.PERIODICALLY INSPECT all valves, fittin

Figure 13 — 19XL Accessory Spring Isolation (Shown with Accessory Soleplates)

Figure 14 — Typical 19XL Low Profile Isolation Assembly

Figure 15 — Typical Nozzle Piping

Cooler Waterboxes Condenser WaterboxesPass In Out Arrangement Code In Out Arrangement Code1 8 5 A 11 12 P5 8 B 12 11 Q2 7 9 C 10 12 R4 6 D 11 13 S3 7

Tank SizeA B C D E F G H J K L M N P R S T0428 10-5 9-10 4-9 2-4 3/41-2 3/82-10 3/44-11 3-8 1/83-6 2-9 7/163-2 0-3 1/24-8 3/41-7 7/81-7 5/163-7 3/45-4

QTY Trade Size Location11111/2”3/4”1”1 1/4”topbottommiddlemiddleRated Dry Weight and Refrigerant CapacityEnglish (lb)Tank SizeTank OD (in.)Dry Weight*

Figure 18 — Optional Pumpout System Piping Schematic with Storage Tank

Figure 19 — Optional Pumpout System Piping Schematic without Storage Tank

Figure 20 — Pumpout Unit

Figure 21 — Relief Valve Locations

ContentsList of TablesList of FiguresSafety Considerations Introduction General Job Data Equipment RequiredInstallation Receiving the MachineInspect S

Figure 22 — Carrier Comfort Network Communication Bus Wiring

Figure 23 — COMM1 CCN Communication Wiring For Multiple Chillers (Typical)

Figure 24 — 19XL With Optional Unit-Mounted Starter

Figure 25 — 19XL With Freestanding Starter

LEGENDAWG — American Wire GageNO — Normally OpenNC — Normally ClosedPR — Pilot RelayRLA — Rated Load AmpsST — Shunt TripTB — Terminal Block— Required

LEGEND— Required Power Wiring— Required Control Wiring— Options WiringFigure 27 — 19XL Typical Field Wiring with Free-Standing Starter

Figure 28 — Oil Pump Wiring

Figure 29 — Oil Heater and Control Power Wiring

Figure 30 — 19XL Insulation Area

ContentsRig Machine Components Install Machine Supports Install Standard Isolation Install Optional Isolation Install Spring Isolation Connect Piping

ContentsList of TablesTable 1 — 19XL Compressor/Motor WeightsTable 2 — 19XL Component WeightsTable 3 — 19XL Heat Exchanger WeightsTable 4 — Additional