Description

AquaEdge Chiller: Carrier 19XR/19XRV High-Efficiency Cooling System

Large buildings lose money when cooling systems run inefficiently at part load. Standard equipment struggles to match capacity with demand, which drives up electricity bills and shortens equipment life. The AquaEdge Chiller solves this problem with a design built for consistent performance across the full operating range, from light morning loads to peak afternoon demand.

Workman Services supplies, installs, and maintains the Carrier 19XR and 19XRV chiller across Pakistan and the UAE. This unit is engineered for apartments, luxury villas, office spaces, manufacturing units, hospitals, and large retail projects. It combines a semi-hermetic compressor, chlorine-free refrigerant, and precise controls to deliver dependable temperature control where uptime matters.

This page covers the complete technical specification, features, options, dimensions, and answers to common buyer questions.

What Is the AquaEdge Chiller?

A chiller is a machine that removes heat from water and circulates that cooled water through a building to control temperature. The AquaEdge Chiller is Carrier’s 19XR and 19XRV centrifugal water-cooled unit, sized from 300 to 3,400 tons.

The unit uses a Semi Hermetic Centrifugal Chiller design. This means the compressor, motor, and transmission are sealed as a single serviceable assembly, which reduces refrigerant leaks and simplifies maintenance. The centrifugal compressor spins an aerodynamically contoured impeller to compress refrigerant at high volume with low energy input.

For projects that need variable-speed control, the 19XRV adds a unit-mounted variable frequency drive (VFD), a device that adjusts motor speed to match cooling load. This enables an integrated part-load value (IPLV) as low as 0.31, which translates to lower running costs at typical operating conditions.

Performance Features of the 19XR Chiller

Operating cost is the largest lifetime expense of any large cooling system. The 19XR Chiller reduces that cost through several design choices that improve efficiency at both part load and full load.

• IPLV to 0.31 (19XRV) for low seasonal energy use
• Chlorine-free R-513A or R-515B refrigerant that meets environmental standards
• Semi-hermetic compressor motor sealed against refrigerant loss
• Low energy consumption during part load and full load operation
• Aerodynamically contoured impeller for efficient refrigerant compression
• Multilingual display for straightforward on-site operation
• Compatible with Carrier Comfort Network® (CCN) communication link
• BACnet IP or MS/TP native compatibility for building management integration
• Economized two-stage compressor on 19XR two-stage units

These features keep energy draw low while integrating cleanly with building automation systems.

Reliability Features

Downtime in a hospital or manufacturing plant carries direct operational cost. The AquaEdge Chiller is built with reliability features that protect against unexpected failure and extend service life.

• ASME-constructed heat exchangers built to a recognized pressure-vessel standard
• Single-stage 300–550 tons (1,055 to 1,934 kW) or two-stage 600–3,400 tons (2,110 to 11,957 kW) positive pressure design
• Low voltage control circuits for safer operation
• Semi-hermetically sealed compressor, motor, and transmission
• Automated controls that technicians can test before start-up
• Refrigerant-cooled or air-cooled unit-mounted variable frequency drive (19XRV)

Positive pressure design prevents outside air and moisture from entering the refrigerant circuit. This means fewer contamination problems and more stable long-term performance.

Maintenance Features

Maintenance is easier when the equipment reports its own condition. The chiller includes diagnostic tools that reduce troubleshooting time and prevent minor faults from becoming major repairs.

• Password-protected service menu with built-in diagnostics, troubleshooting, and corrective-action recommendations for preset alarms
• Alarm and alert files that store the last 25 time- and date-stamped messages in memory
• Configuration data backup held in non-volatile memory
• Thermistor-type temperature sensors with quick connects in each water nozzle
• Refrigerant isolation valves for in-chiller refrigerant storage (factory-installed option)
• Unit-mounted pumpout unit for storing refrigerant inside the chiller during servicing (factory-installed option)
• Service contract available through Workman Services

These tools give technicians a clear record of events, which speeds diagnosis and shortens repair windows.

Installation Features

A cooling system that installs cleanly reduces commissioning time and labor cost. The unit arrives ready for site work with several features that simplify installation.

• Low voltage control circuits
• Refrigerant-cooled or air-cooled unit-mounted VFD
• Semi-hermetically sealed compressor, motor, and transmission
• Automated controls test on start-up

Factory-Installed Options

Buyers can order the chiller ac configured for specific water quality, pressure, and site conditions. The following factory-installed options are available.

Enhanced tubing, .028 or .035 in. (0.711 or 0.889 mm):

• Internally/externally enhanced copper tubing — evaporator/condenser
• Internally/externally enhanced cupronickel tubing — condenser
• Smooth bore/externally enhanced copper tubing — evaporator/condenser
• Smooth bore/externally enhanced cupronickel tubing — condenser

Titanium condenser tubes, .025 or .028 in. (0.635 or 0.711 mm):

• Internally enhanced tubes

Waterboxes and construction:

• Marine waterboxes
• 150 psig (1034 kPa) waterbox
• 300 psig (2068 kPa) waterbox, ASME certified
• Marine bolt-on waterboxes for condenser, 150 psig (1034 kPa) with titanium clad tubesheets (condenser frame sizes 3 to 8 and A to D)
• Nozzle-in-head waterbox, 300 psig (2068 kPa)
• Flanged evaporator and/or condenser waterbox nozzles
• Waterbox hinges
• One, 2, or 3 pass evaporator or condenser waterside construction
• Zinc anodes

Electrical, refrigerant, and other options:

• Unit-mounted, low-voltage wye-delta or solid-state starters (heat exchanger frames 3–7 only)
• Refrigerant isolation valves
• Shipped factory charged with refrigerant
• Unit-mounted pumpout unit (select models)
• Hot gas bypass
• Unit-mounted refrigerant-cooled or air-cooled variable frequency drive
• Thermal insulation (except waterbox covers)
• Customer factory performance testing
• Export crating
• Discharge line sound reduction kit
• Seismic kit
• Extended warranty (North America only)
• Service contract

Field-Installed Accessories

Some accessories install on site to match the finished mechanical room. These field-installed accessories extend control, isolation, and acoustic performance.

• LonWorks® Carrier translator
• Sensor package
• Separate storage tank and pumpout unit (R-513A only)
• Stand-alone pumpout unit (R-513A only)
• Soleplate package
• Spring isolator kit
• Acoustical sound insulation kit
• Freestanding low voltage wye-delta and solid starters
• Freestanding low voltage variable frequency drives
• Freestanding medium voltage variable frequency drives

AquaEdge Chiller Dimensions — Single-Stage Nozzle-in-Head Waterbox

Correct sizing depends on accurate physical dimensions. Use the table below to confirm length, width, and height for each heat exchanger frame size.

*Assumes all customer connections are on the same end of the chiller.
**Height is for the chiller without unit-mounted starter.
†Heat exchangers are rated at AHRI conditions: 44°F (6.7°C) leaving chilled water and 54°F (12.2°C) entering in the evaporator, and 85°F (29.4°C) entering condenser water with 94.3°F (34.6°C) leaving water in the condenser.

19XR Dimensions — Two-Stage Compressor Frame Sizes 6 & 7 (Dished Head Waterbox)

Two-stage units use larger frames and dished head waterboxes. Confirm these values before finalizing mechanical room layout.

*Assumes both cooler and condenser nozzles on the same end of the chiller.
Note 6: 19XR heights vary depending on configuration. Check the 19XR certified drawings for height information.

Why Buy the AquaEdge Chiller From Workman Services

Equipment performance depends on correct installation and reliable service support. Workman Services has supplied HVAC&R systems since 2006 and manages design, supply, installation, testing, commissioning, and maintenance under one team.

• Skilled technicians certified to install and commission centrifugal units
• Clear, itemized quotations before work begins
• Service contracts and spare-parts support across Pakistan and the UAE
• Project experience across hospitals, banks, and industrial facilities

For any large project that requires steady, low-cost cooling, this unit delivers measured performance backed by local service.

Frequently Asked Questions

What capacity range does the AquaEdge Chiller cover?

The unit covers 300 to 3,400 tons. Single-stage models range from 300 to 550 tons (1,055 to 1,934 kW), and two-stage models range from 600 to 3,400 tons (2,110 to 11,957 kW).

What refrigerant does the 19XR Chiller use?

The unit runs on chlorine-free R-513A or R-515B refrigerant. Both meet current environmental standards and reduce the ozone impact associated with older refrigerants.

What is the difference between the 19XR and 19XRV?

The 19XR uses a fixed-speed drive, while the 19XRV adds a unit-mounted variable frequency drive. The VFD adjusts motor speed to match load, which lowers part-load energy use and supports an IPLV to 0.31.

What does a Semi Hermetic Centrifugal Chiller design provide?

A Semi Hermetic Centrifugal Chiller seals the compressor, motor, and transmission as one serviceable assembly. This reduces refrigerant leaks, protects the drive from contamination, and simplifies field maintenance.

Can this chiller ac connect to a building management system?

Yes. The unit supports the Carrier Comfort Network® (CCN) communication link and offers BACnet IP or MS/TP native compatibility, so it integrates directly with common building automation platforms.

What waterbox pressure ratings are available?

Factory options include 150 psig (1034 kPa) and ASME-certified 300 psig (2068 kPa) waterboxes, along with marine and nozzle-in-head configurations to match site piping and water conditions.

Does Workman Services provide installation and maintenance?

Yes. Workman Services handles supply, installation, testing, commissioning, and ongoing maintenance, and offers service contracts for long-term coverage across Pakistan and the UAE.

Contact Workman Services to request a quotation, confirm frame sizing, or schedule a site assessment for your next project.